CN111969582B - Power supply system based on compatible photovoltaic of droop parallel operation single power input interface and wind-powered electricity generation - Google Patents
Power supply system based on compatible photovoltaic of droop parallel operation single power input interface and wind-powered electricity generation Download PDFInfo
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- CN111969582B CN111969582B CN202010828658.7A CN202010828658A CN111969582B CN 111969582 B CN111969582 B CN 111969582B CN 202010828658 A CN202010828658 A CN 202010828658A CN 111969582 B CN111969582 B CN 111969582B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc sources
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/28—The renewable source being wind energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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Abstract
The invention provides a power supply system based on a droop parallel machine single-power input interface and compatible with photovoltaic and wind power, which comprises a photovoltaic assembly, a GP generator, a fan and a wind power conversion device, wherein the GP generator is connected with a power supply module; the output end of the photovoltaic module is connected with the topological input end of the photovoltaic conversion power through an input power bus; the topological output end of the wind power conversion power is connected in parallel with an input power bus; when only one path of photovoltaic is detected to be input, the control unit controls the photovoltaic conversion power topology to enable the photovoltaic module to operate at a proper power point position; when one path of input of the fan is detected, the control unit controls the voltage of the direct current bus, the droop control principle is applied, the voltage amplitude of the input power bus is taken as a given value, and virtual impedance is formed on an output bus branch circuit corresponding to the wind power conversion power topology, so that a voltage source working mode is formed. The invention provides a compatible interface, so that the photovoltaic array and the wind driven generator are connected in parallel to form a power bus and use the same input port, and the compatibility of the input interface and the high-efficiency utilization rate of energy are ensured.
Description
Technical Field
The invention relates to a power supply system at least comprising photovoltaic and wind power input.
Background
The existing wind power and photovoltaic power generation equipment is connected into a system after voltage and current conversion is carried out through different interfaces, and the system is mainly divided into two types:
1. sharing an alternating current bus;
as shown in fig. 1, the DC/DC module of the PV interface of the device tracks the maximum power point of the system by running the MPPT function, and outputs the maximum power point to the AC bus via the DC/AC;
and a DC/DC module of the equipment fan interface operates to stabilize DC port voltage and outputs the DC port voltage to an Alternating Current (AC) bus through DC/AC.
2. Sharing a direct current bus;
as shown in fig. 2, the DC/DC module of the PV interface of the device tracks the maximum power point of the system by running the MPPT function, and outputs the maximum power point to the DC bus; the DC/DC module of the equipment fan interface operates to stabilize the bus voltage of the DC port.
Disclosure of Invention
In order to solve the defects, the invention provides a power supply system based on a droop parallel machine single-power input interface and compatible with photovoltaic and wind power, and the technical scheme is as follows:
the power supply system based on the compatibility of the photovoltaic and wind power of the droop parallel machine single-power input interface comprises a photovoltaic assembly, a GP generator, a fan and a wind power conversion device; the GP generator is divided into a photovoltaic conversion power topology and control unit MCU1, and the wind power conversion device is divided into a wind power conversion power topology and control unit MCU 2; the output end of the photovoltaic module is connected with the input end of the photovoltaic conversion power topology through an input power bus, and the photovoltaic conversion power topology converts and outputs a direct current signal; the fan outputs a direct current signal through wind power conversion power topology conversion, and the output end of the wind power conversion power topology is connected to the input power bus in parallel; the control unit MCU1 and the control unit MCU2 respectively collect voltage and current signals on the input power bus;
when only one path of photovoltaic is detected to have input, the control unit MCU1 controls the photovoltaic conversion power topology according to the voltage and current signals on the input power bus to enable the photovoltaic module to operate at a proper power point position;
when the condition that one path of the fan is input is detected, the control unit MCU1 keeps a control mode when only one path of the photovoltaic is input, the control unit MCU2 controls the voltage of the direct current bus by adjusting the wind power conversion power topology, applies a droop control principle, takes the voltage amplitude of the input power bus as a given value, and forms a working mode of a voltage source on an output bus branch path corresponding to the wind power conversion power topology.
Preferably, the photovoltaic device is a single PV photovoltaic panel or a PV photovoltaic array.
Preferably, the fan and the wind-electricity conversion device are packaged together.
Preferably, when it is detected that only one path of the fan has an input, the control unit MCU2 controls the voltage of the dc bus by adjusting the wind power conversion power topology, and applies the droop control principle, with the voltage amplitude of the input power bus as a given value, to form a working mode of the voltage source on the output bus branch corresponding to the wind power conversion power topology.
Preferably, when detecting that one path of the fan has an input and one path of the photovoltaic has an input, the control unit MCU1 controls the photovoltaic conversion power topology according to the voltage and current signals on the input power bus to make the photovoltaic module operate at a proper power point position; meanwhile, the control unit MCU2 controls the voltage of the dc bus by adjusting the wind power conversion power topology, applies the droop control principle, and forms the operating mode of the voltage source by taking the voltage amplitude of the input power bus as a given value and virtualizing impedance on the output bus branch corresponding to the wind power conversion power topology.
Preferably, the photovoltaic module is operated at a suitable power point position, and the MPPT function tracking system maximum power point is operated.
Preferably, the wind turbine and the wind power conversion device are provided with a plurality of groups which are connected to the input power bus in parallel.
Preferably, the virtual impedance, specifically the virtual 2 Ω impedance, is used to limit the magnitude of the circulating current on the output bus branch corresponding to the wind power conversion power topology.
Compared with the prior art, the invention has the following advantages:
the output end of the photovoltaic module is connected with the input end of the photovoltaic conversion power topology through an input power bus, and the photovoltaic conversion power topology converts and outputs a direct current signal; the wind turbine outputs a direct current signal through wind power conversion power topology conversion, and the output end of the wind power conversion power topology is connected in parallel to an input power bus; the control unit MCU1 is connected with the control unit MCU2 and respectively collects voltage and current signals on the input power bus, so that the interface with compatibility provided by the invention enables the photovoltaic array and the wind driven generator to be connected with the power bus in parallel to use the same input port in a summary manner, and can also meet the requirement of independent use of any one, thereby ensuring the compatibility of the input interface and the high-efficiency utilization rate of energy.
When only one photovoltaic path is detected to be input, the control unit MCU1 controls the photovoltaic conversion power topology according to the voltage and current signals on the input power bus to enable the photovoltaic module to operate at a proper power point position; when detecting that one path of the fan is input, the control unit MCU2 controls the voltage of the dc bus by adjusting the wind power conversion power topology, and applies the droop control principle, with the voltage amplitude of the input power bus as a given value, to form a working mode of the voltage source by using the virtual impedance on the output bus branch corresponding to the wind power conversion power topology. The output power can be adjusted according to the requirement of internal energy, so that the efficient utilization and stability of energy are ensured; and the fan controller does not need to communicate with the GP generator controller, so that on the basis of the same interface, the energy input is expanded according to the application requirements of different users (or multiple paths of fans can be directly connected in parallel).
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic block diagram of a conventional common AC bus;
FIG. 2 is a schematic block diagram of a conventional common DC bus;
FIG. 3 is a schematic diagram of one embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The invention provides an input compatibility interface based on the existing two modes. The photovoltaic array and the wind driven generator parallel power bus are enabled to be gathered and used by the same input port, any one of the input ports can be used independently, and the compatibility of the input ports and the efficient utilization of energy are guaranteed.
The technical solution of the present invention will now be described in detail with reference to the accompanying drawings and specific embodiments:
FIG. 3 is a schematic diagram of an embodiment of the present invention, as shown in FIG. 3: the power supply system based on the compatibility of the photovoltaic and wind power of the droop parallel machine single-power input interface comprises a photovoltaic assembly, a GP generator, a fan and a wind power conversion device; the GP generator is divided into a photovoltaic conversion power topology and control unit MCU1, and the wind power conversion device is divided into a wind power conversion power topology and control unit MCU 2; the output end of the photovoltaic module is connected with the input end of the photovoltaic conversion power topology through an input power bus, and the photovoltaic conversion power topology converts and outputs a direct current signal; the fan outputs a direct current signal through wind power conversion power topology conversion, and the output end of the wind power conversion power topology is connected in parallel to the input power bus; the control unit MCU1 and the control unit MCU2 respectively collect voltage and current signals on the input power bus; when only one photovoltaic path is detected to be input, the control unit MCU1 controls the photovoltaic conversion power topology according to the voltage and current signals on the input power bus to enable the photovoltaic module to operate at a proper power point position; when the condition that one path of the fan is input is detected, the control unit MCU1 keeps a control mode when the condition that only one path of the photovoltaic is input is detected, the control unit MCU2 controls the voltage of the direct current bus by adjusting the wind power conversion power topology, applies a droop control principle, takes the voltage amplitude of the input power bus as a given value, and forms a working mode of a voltage source on an output bus branch corresponding to the wind power conversion power topology. The photovoltaic device is a single PV photovoltaic panel or a PV photovoltaic array. The fan and the wind-electricity conversion device are packaged together. When only one path of the fan is detected to be input, the control unit MCU2 controls the voltage of the direct current bus by adjusting the wind power conversion power topology, applies the droop control principle, takes the voltage amplitude of the input power bus as a given value, and forms the working mode of the voltage source on the output bus branch corresponding to the wind power conversion power topology. When detecting that one path of the fan is input and the other path of the photovoltaic is also input, the control unit MCU1 controls the photovoltaic conversion power topology according to the voltage and current signals on the input power bus to enable the photovoltaic module to operate at a proper power point position; meanwhile, the control unit MCU2 controls the voltage of the dc bus by adjusting the wind power conversion power topology, and applies the droop control principle, with the voltage amplitude of the input power bus as a given value, to form a working mode of the voltage source by virtualizing an impedance on the output bus branch corresponding to the wind power conversion power topology. And (3) operating the photovoltaic module at a proper power point position, namely operating the maximum power point of the MPPT function tracking system. The fan and the wind-electricity conversion device are provided with a plurality of groups and are connected to the input power bus in a parallel mode. Virtual impedance, specifically virtual 2 omega impedance, is arranged on an output bus branch corresponding to the wind power conversion power topology to limit the magnitude of circulating current.
As shown in fig. 3, a single PV photovoltaic panel or PV photovoltaic array collects a PV input bus, performs voltage and current signal detection on the input power bus, and sends the signals to a fan control MCU and a GP generator MCU, respectively; the fan is converted into a direct current signal through fan topology; two paths of direct current signals are gathered and connected to a power interface of the GP generator;
when the photovoltaic grid-connected inverter works, when one photovoltaic path is input with energy, the GP generator MCU samples input voltage and current signals and controls the internal topological structure of the GP generator to enable the photovoltaic panel to operate at a proper power point (according to the internal energy requirement);
when one path of the fan is input, the GP generator MCU1 keeps the original control mode unchanged, so that the fan control MCU2 applies a droop control principle on the basis of controlling the voltage of the dc bus (the amplitude of the output voltage is given by the voltage amplitude of the input port), and outputs a voltage source by virtualizing 2 Ω impedance on the output bus branch in a manner of limiting the magnitude of the circulating current;
when two paths of photovoltaic energy and fan energy are simultaneously input, the GP generator MCU samples input voltage and current signals and controls the internal topological structure of the GP generator to enable the photovoltaic panel to operate at a proper power point (according to the requirement of the internal energy), and the fan energy controls the MCU2 to control the fan topology through the fan or in a voltage source mode (the amplitude of output voltage is given through the voltage amplitude of an input port);
by adopting the compatible single-power input interface, the fan controller does not need to communicate with the GP generator controller, so that on the basis of the same interface, the energy input is expanded according to the application requirements of different users (or multiple paths of fans can be directly connected in parallel).
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (8)
1. The power supply system based on the compatibility of the photovoltaic and wind power of the droop parallel machine single-power input interface comprises a photovoltaic assembly, a GP generator, a fan and a wind power conversion device; the GP power generator is divided into a photovoltaic conversion power topology and control unit MCU1, and the wind power conversion device is divided into a wind power conversion power topology and control unit MCU 2; the output end of the photovoltaic module is connected with the input end of the photovoltaic conversion power topology through an input power bus, and the photovoltaic conversion power topology converts and outputs a direct current signal; the fan outputs a direct current signal through wind power conversion power topology conversion, and the output end of the wind power conversion power topology is connected to the input power bus in parallel; the control unit MCU1 and the control unit MCU2 respectively collect voltage and current signals on the input power bus;
when only one path of photovoltaic is detected to have input, the control unit MCU1 controls the photovoltaic conversion power topology according to the voltage and current signals on the input power bus to enable the photovoltaic module to operate at a proper power point position;
when the condition that one path of the fan is input is detected, the control unit MCU1 keeps a control mode when only one path of the photovoltaic is input, the control unit MCU2 controls the voltage of the direct current bus by adjusting the wind power conversion power topology, applies a droop control principle, takes the voltage amplitude of the input power bus as a given value, and forms a working mode of a voltage source on an output bus branch path corresponding to the wind power conversion power topology.
2. The droop parallel single-power-input-interface-compatible photovoltaic and wind power supply system according to claim 1, wherein the photovoltaic module is a single PV photovoltaic panel or a PV photovoltaic array.
3. The droop parallel single-power-input-interface-compatible photovoltaic and wind power supply system according to claim 1, wherein the fan and the wind power conversion device are packaged together.
4. The power supply system based on the parallel-down single-power input interface compatible with the photovoltaic power and the wind power as claimed in claim 1, wherein when it is detected that only one path of the fan has an input, the control unit MCU2 controls the voltage of the dc bus by adjusting the wind power conversion power topology, and applies the droop control principle, and forms the operating mode of the voltage source by taking the voltage amplitude of the input power bus as a given value and virtualizing the impedance on the output bus branch path corresponding to the wind power conversion power topology.
5. The power supply system compatible with photovoltaic and wind power based on the droop parallel single-power input interface of claim 1, wherein when it is detected that there is an input in one path of the fan and an input in the other path of the photovoltaic, the control unit MCU1 controls the photovoltaic conversion power topology to operate the photovoltaic module at a proper power point position according to the voltage and current signals on the input power bus; meanwhile, the control unit MCU2 controls the voltage of the dc bus by adjusting the wind power conversion power topology, applies the droop control principle, and forms the operating mode of the voltage source by taking the voltage amplitude of the input power bus as a given value and virtualizing impedance on the output bus branch corresponding to the wind power conversion power topology.
6. The droop parallel single-power-input-interface-compatible photovoltaic and wind power supply system based on claim 1, wherein the photovoltaic module is enabled to operate at a proper power point position, and the MPPT function tracking system maximum power point is operated.
7. The droop parallel single-power input interface-compatible photovoltaic and wind power supply system according to claim 1, wherein the plurality of groups of fans and wind power conversion devices are connected to the input power bus in parallel.
8. The droop parallel single-power-input-interface-compatible photovoltaic and wind power supply system according to claim 1, wherein a virtual impedance, specifically a virtual 2 Ω impedance, is arranged on an output bus branch corresponding to a wind power conversion power topology to limit the magnitude of circulating current.
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| CN202010828658.7A CN111969582B (en) | 2020-08-17 | 2020-08-17 | Power supply system based on compatible photovoltaic of droop parallel operation single power input interface and wind-powered electricity generation |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105305401A (en) * | 2015-09-29 | 2016-02-03 | 中国科学院电工研究所 | Grid connected control method for photovoltaic high voltage DC grid connected current transformer |
| CN107204731A (en) * | 2017-06-08 | 2017-09-26 | 兰州理工大学 | Wind and solar hybrid generating system MPPT control method based on geometric mean |
| CN107612320A (en) * | 2017-09-11 | 2018-01-19 | 西安理工大学 | Wind light mutual complementing power generation electric power system based on three-port DC converter output |
| CN107681697A (en) * | 2017-11-01 | 2018-02-09 | 国网江苏省电力公司南京供电公司 | Store up the energy router topology device and control method of lotus optimum management in source |
| CN110474371A (en) * | 2019-09-02 | 2019-11-19 | 中建材蚌埠玻璃工业设计研究院有限公司 | A kind of scene hydrogen multipotency source integrated system |
| CN110601542A (en) * | 2019-09-11 | 2019-12-20 | 哈尔滨工程大学 | Energy storage isolation type three-port DC-DC converter of photovoltaic system and control method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9564756B2 (en) * | 2013-03-15 | 2017-02-07 | Technology Research, Llc | Interface for renewable energy system |
-
2020
- 2020-08-17 CN CN202010828658.7A patent/CN111969582B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105305401A (en) * | 2015-09-29 | 2016-02-03 | 中国科学院电工研究所 | Grid connected control method for photovoltaic high voltage DC grid connected current transformer |
| CN107204731A (en) * | 2017-06-08 | 2017-09-26 | 兰州理工大学 | Wind and solar hybrid generating system MPPT control method based on geometric mean |
| CN107612320A (en) * | 2017-09-11 | 2018-01-19 | 西安理工大学 | Wind light mutual complementing power generation electric power system based on three-port DC converter output |
| CN107681697A (en) * | 2017-11-01 | 2018-02-09 | 国网江苏省电力公司南京供电公司 | Store up the energy router topology device and control method of lotus optimum management in source |
| CN110474371A (en) * | 2019-09-02 | 2019-11-19 | 中建材蚌埠玻璃工业设计研究院有限公司 | A kind of scene hydrogen multipotency source integrated system |
| CN110601542A (en) * | 2019-09-11 | 2019-12-20 | 哈尔滨工程大学 | Energy storage isolation type three-port DC-DC converter of photovoltaic system and control method |
Non-Patent Citations (2)
| Title |
|---|
| 共直流母线式风光互补发电系统的仿真研究;南国君 等;《合肥工业大学学报（自然科学版）》;20111231;第34卷(第12期);全文 * |
| 风光互补直流并网在海岛上的应用;马强 等;《海洋工程装备与技术》;20140930;第1卷(第3期);全文 * |
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Denomination of invention: A power supply system compatible with photovoltaic and wind power based on droop parallel single power input interface Effective date of registration: 20231228 Granted publication date: 20210924 Pledgee: Pudong Development Bank of Shanghai Limited by Share Ltd. Xi'an branch Pledgor: Boyang Energy Technology Co.,Ltd. Registration number: Y2023980075032 |