CN110932332A - Distributed regulation and control type solar power generation system - Google Patents
Distributed regulation and control type solar power generation system Download PDFInfo
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- CN110932332A CN110932332A CN201911384519.3A CN201911384519A CN110932332A CN 110932332 A CN110932332 A CN 110932332A CN 201911384519 A CN201911384519 A CN 201911384519A CN 110932332 A CN110932332 A CN 110932332A
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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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 discloses a distributed regulation and control type solar power generation system which comprises a photovoltaic array, an electricity storage unit, a power distribution unit, a user unit and a regulation and control unit, wherein the output end of the photovoltaic array is divided into two paths and is respectively and electrically connected with the electricity storage unit and the power distribution unit through independent electric control switches; according to the invention, the distributed regulation and control type output control can be carried out on the electricity utilization conditions of a plurality of users through one set of photovoltaic power generation system, the centralized optimization and unified regulation and control of the photovoltaic power generation systems of the plurality of users are realized, the cost and the steps of independently installing the photovoltaic components and the control system are greatly simplified, and the efficiency of using the photovoltaic power generation system by multiple users is improved.
Description
Technical Field
The invention particularly relates to a photovoltaic power generation system, and particularly relates to a distributed regulation and control type solar power generation system.
Background
The distributed photovoltaic power generation is particularly characterized in that the distributed photovoltaic power generation facility is built near a user site, the operation mode is characterized in that the user side automatically uses the power, the surplus electric quantity is on the internet, and the balance adjustment is carried out on a power distribution system. The distributed photovoltaic power generation follows the principles of local conditions, cleanness, high efficiency, scattered layout and near utilization, fully utilizes local solar energy resources, and replaces and reduces fossil energy consumption.
At present, distributed photovoltaic power generation is used more than one application and is used by a single user, the single user generally has an independent residential environment, a photovoltaic module, particularly a solar panel, has enough installation space to be installed in the residential environment of the user, but at present, many users are building-type houses, the installation range of a roof is limited, when the multiple users all need to use the photovoltaic power generation, the photovoltaic module does not have enough space to be installed independently, photovoltaic power generation systems of all users are incompatible and cannot be shared in a coordinated mode, and the installation cost is increased on the whole.
Therefore, in response to such problems, a need exists for a uniformly regulated photovoltaic power generation system for building occupants.
Disclosure of Invention
The invention aims to provide a distributed regulation and control type solar power generation system to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a distributed regulation type solar power generation system comprises a photovoltaic array, a power storage unit, a power distribution unit, a user unit and a regulation unit, the user unit comprises a user distribution box, an electric quantity meter and municipal power supply, the municipal power supply is electrically connected with the input of the user distribution box through the electric quantity meter, the output end of the photovoltaic array is electrically connected with the power storage unit and the power distribution unit through two paths of independent electric control switches respectively, the output end of the power distribution unit is electrically connected with the user distribution box through an electric control switch, an inverter for inverting direct current into alternating current is arranged in the power distribution unit, the output end of the power storage unit is electrically connected with the input end of the residual inverter of the electric control switch, the regulating and controlling unit comprises a controller, the data output end of the electricity meter is electrically connected with the input end of the controller, and the driving signal end of the electric control switch is electrically connected with the output end of the controller.
Further scheme: the photovoltaic array is formed by a plurality of solar cell panels in a combined mode, the electricity storage unit comprises a solar charging and discharging controller and a storage battery pack, the electricity distribution unit comprises an inverter and an alternating current distribution box, a plurality of solar cell panels are collected and output by a collecting box, the output of the collecting box is electrically connected with the input ends of the solar charging and discharging controller and the inverter respectively, the output end of the solar charging and discharging controller is electrically connected with the charging end of the storage battery pack, the output end of the inverter is electrically connected with a plurality of user distribution boxes through the alternating current distribution box, and the output end of the storage battery pack is electrically connected with the input end of the inverter.
Further scheme: the photovoltaic array comprises a roof solar panel array and a curtain wall solar panel array.
Further scheme: the input of regulation and control unit is connected with the sensor unit, the sensor unit includes temperature and humidity sensor, smog alarm sensor, voltage sensor and current sensor, temperature and humidity sensor with smog alarm sensor all sets up in the installation environment of power storage unit and distribution unit, current sensor with voltage sensor sets up respectively in each output circuit.
Further scheme: and an electric quantity metering sensor electrically connected with the control unit controller is arranged in the electricity storage unit.
Further scheme: the photovoltaic array is provided with a lightning protection device.
Compared with the prior art, the invention has the beneficial effects that: the photovoltaic power generation system has the advantages that the output of the photovoltaic array is controllable, the power storage and inversion output are carried out, the photovoltaic power generation is transmitted into the corresponding user distribution box to participate in power supply by matching with the actual use condition of the user distribution box, the power storage unit can be used as the boosting output in the case of undervoltage, the continuity and stability of the photovoltaic power supply are improved, the regulation and control unit can independently control the input of each user distribution box through the sensor unit, the distributed regulation and control type output control can be carried out on the power utilization conditions of a plurality of users through one set of photovoltaic power generation system, the centralized optimization and unified regulation and control of the photovoltaic power generation systems of the plurality of users are realized, the cost and the steps of independently installing the photovoltaic modules and the control system are greatly simplified, and the efficiency of the photovoltaic power.
Drawings
Fig. 1 is a system block diagram of a distributed regulated solar power system.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.
Referring to fig. 1, in an embodiment of the present invention, a distributed regulation and control type solar power generation system includes a photovoltaic array, a power storage unit, a power distribution unit, a user unit and a regulation and control unit, where the user unit includes a user distribution box, an electricity meter and a municipal power supply, the municipal power supply is electrically connected to an input of the user distribution box through the electricity meter, an output end of the photovoltaic array is electrically connected to the power storage unit and the power distribution unit through two paths and independent electric control switches, respectively, an output end of the power distribution unit is electrically connected to the user distribution box through an electric control switch, an inverter for inverting a direct current into an alternating current is disposed in the power distribution unit, an output end of the power storage unit is electrically connected to an input end of the electric control switch residual inverter, the regulation and control unit includes a controller, and a data output end of the electricity meter is, and the driving signal end of the electric control switch is electrically connected with the output end of the controller.
The photovoltaic array is formed by combining a plurality of solar panels, the electricity storage unit comprises a solar charging and discharging controller and a storage battery pack, the electricity distribution unit comprises an inverter and an alternating current distribution box, the plurality of solar panels are collected and output by a collecting box, the output of the collecting box is respectively and electrically connected with the solar charging and discharging controller and the input end of the inverter, the output end of the solar charging and discharging controller is electrically connected with the charging end of the storage battery pack, the output end of the inverter is electrically connected with a plurality of user distribution boxes through an alternating current distribution box, the output end of the storage battery pack is electrically connected with the input end of the inverter through an electric control switch, the output of the photovoltaic array is directly inverted and sent to the user distribution box through the power distribution unit, surplus electric quantity can be stored in the storage battery pack, and electric power in the storage battery pack can be sent to the user distribution box again through the inverter.
The photovoltaic array comprises a roof solar cell panel array and a curtain wall solar cell panel array, so that the external space of a user house is fully utilized, and the power generation efficiency is improved.
The input of regulation and control unit is connected with the sensor unit, the sensor unit includes temperature and humidity sensor, smog alarm sensor, voltage sensor and current sensor, temperature and humidity sensor with smog alarm sensor all sets up in the installation environment of power storage unit and distribution unit, current sensor with voltage sensor sets up respectively in each output circuit, and the sensor unit that sets up here mainly used monitors the environmental aspect of each unit module, guarantees the safe operation of equipment.
The electricity storage unit is internally provided with an electricity metering sensor electrically connected with the control unit controller, and the arranged electricity metering sensor is used for detecting the electricity storage state of the electricity storage unit and preventing the condition of excessive charging.
The photovoltaic array is provided with a lightning protection device, the lightning protection device is mainly used for lightning strike on the photovoltaic array, and the lightning strike can generate huge instantaneous current to possibly damage a system, so that the lightning protection device can effectively guide the lightning strike and prevent the condition of burning out equipment due to overcurrent.
The working principle of the invention is as follows: when the photovoltaic power distribution system works, solar energy is converted into direct current by the photovoltaic array, one part of the direct current is directly converted into alternating current by the power distribution unit and is sent to the user distribution box for use by a user, the other part of the direct current is stored in the storage battery pack by the solar charging and discharging controller, wherein the regulation and control unit can control the output of the power distribution unit according to the use condition of the user distribution box for municipal power supply, when the data of the electricity meter is output, the controller of the regulation and control unit can detect the electricity consumption condition of the user, the power distribution unit supplies the electricity output of the power distribution unit to the user distribution box through the electric control switch to reduce the electricity consumption of a power grid by the user, therefore, the electricity meter is used as a driving signal for driving the user distribution box to be connected with photovoltaic power generation output, when the output of, the controller can be communicated with an electric control switch between the storage battery pack and the inverter, the electric quantity stored in the storage battery pack can improve the output voltage of the power distribution unit by outputting alternating current through the inverter, the electric quantity metering sensor arranged in the charging process of the storage battery pack can detect the electric quantity of the storage battery so as to control the opening and closing of the output of the power storage unit and the photovoltaic array, therefore, the invention can store and invert the output of the photovoltaic array in a controllable way, send the photovoltaic power generation into the corresponding user distribution box to participate in power supply by matching with the actual use condition of the user distribution box, the stored electricity of the photovoltaic array can be used as the boosting output under the undervoltage, the continuity and the stability of the photovoltaic power supply are improved, the input of each user distribution box can be independently controlled through the sensor unit, and the distributed regulation and control type output control can be carried out on the electricity utilization conditions of a plurality of users through, the centralized optimization and unified regulation and control of the photovoltaic power generation systems of a plurality of users are realized, the cost and the steps for independently installing the photovoltaic modules and the control system are greatly simplified, and the efficiency of using the photovoltaic power generation systems by a plurality of users is improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A distributed regulation type solar power generation system comprises a photovoltaic array, a power storage unit, a power distribution unit, a user unit and a regulation unit, the user unit comprises a user distribution box, an electric quantity meter and municipal power supply, the municipal power supply is electrically connected with the input of the user distribution box through the electric quantity meter, it is characterized in that the output end of the photovoltaic array is respectively and electrically connected with the electricity storage unit and the electricity distribution unit through two paths of independent electric control switches, the output end of the power distribution unit is electrically connected with the user distribution box through an electric control switch, an inverter for inverting direct current into alternating current is arranged in the power distribution unit, the output end of the power storage unit is electrically connected with the input end of the residual inverter of the electric control switch, the regulating and controlling unit comprises a controller, the data output end of the electricity meter is electrically connected with the input end of the controller, and the driving signal end of the electric control switch is electrically connected with the output end of the controller.
2. The distributed regulated solar power generation system according to claim 1, wherein the photovoltaic array is formed by combining a plurality of solar panels, the electricity storage unit comprises a solar charging and discharging controller and a storage battery pack, the electricity distribution unit comprises an inverter and an ac distribution box, the plurality of solar panels are collected and output by a collection box, the output of the collection box is electrically connected with the solar charging and discharging controller and the input end of the inverter respectively, the output end of the solar charging and discharging controller is electrically connected with the charging end of the storage battery pack, the output end of the inverter is electrically connected with a plurality of user distribution boxes through the ac distribution box, and the output end of the storage battery pack is electrically connected with the input end of the inverter through an electric control switch.
3. The distributed regulated solar power generation system according to claim 1, wherein the photovoltaic array comprises a rooftop solar panel array and a curtain wall solar panel array.
4. The distributed regulated solar power generation system according to claim 1, wherein the input end of the regulation unit is connected with a sensor unit, the sensor unit comprises a temperature and humidity sensor, a smoke alarm sensor, a voltage sensor and a current sensor, the temperature and humidity sensor and the smoke alarm sensor are both arranged in the installation environment of the power storage unit and the power distribution unit, and the current sensor and the voltage sensor are respectively arranged in each output loop.
5. The distributed regulated solar power generation system according to any of claims 1-4, wherein a coulometric sensor is provided in the electricity storage unit that is electrically connected to the regulation unit controller.
6. The distributed conditioning solar power generation system as recited in any of claims 1-4, wherein the photovoltaic array is provided with a lightning protection device.
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| CN201911384519.3A CN110932332A (en) | 2019-12-28 | 2019-12-28 | Distributed regulation and control type solar power generation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113241996A (en) * | 2021-06-03 | 2021-08-10 | 广东省建筑设计研究院有限公司 | Boarding bridge photovoltaic grid-connected power generation system |
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