The importance of using variable-speed permanent magnet synchronous motors in various fields requires the use of speed control techniques. This document presents the vector control of permanent magnet synchronous motors based on proportional ...

Permanent magnet synchronous motor (PMSM) plays an important leading role in today's industry on account of its advantages such as high torque density, high efficiency, and good speed regulation performance. In order to enhance the responsiveness and ...

In view of the lack of the role of reluctance torque in the electromagnetic torque output of the motor under the previous control logic with id=0, only the excitation torque component is working. Therefore, on the premise of inputting unit current,...

This paper introduces sensorless hysteresis direct torque control for permanent magnet synchronous motors to provide a reduced torque pulsation profile, which leads to a smaller mechanical vibration. The suggested algorithm utilizes the principle ...

The sensorless control strategy was implemented by replacing the conventional PI regulator with an improved fuzzy PI regulator, meanwhile an adjusted sliding mode observer was established for replacing the traditional rigid position sensor based on the ...

A fractional-order model for myxomatosis transmission dynamics is developed and analyzed. The presented compartmentalized model is based on the Caputo--Fabrizio fractional-order type owing to its flexibility when handling initial value problems. The model ...

Recife is one of many regions in the North Eastern section of Brazil to be hit hard by the Zika virus outbreak in 2015. Zika infection is caused by the arboviruses transmitted by the Aedes mosquitoes which are abundant in Brazil. It is a known fact that ...

Speed Sensorless Control Technology of Permanent Magnet Synchronous Motor at Low SpeedMainly based on the salient pole characteristics of the motor, injecting high frequency excitation signals and noise filters requiring high bandwidth, It can detect ...

Permanent magnet synchronous motor (PMSM) is widely used in electric vehicle power systems due to their high torque inertia ratio and high power density. However, the strong coupling of winding phase current and torque affects their control accuracy. In ...

Speed sensors of ventilation motor in mineral well are susceptible to various problems, such as water seepage and blockage as well as lack of feedback signals for entilators. As soon as they happen, the ventilation motor will not be controlled. These ...

A sensor less control approach for permanent magnet synchronous motor (PMSM) with contra-rotating dual rotors was researched in order to obtain simple configuration and reliable performance. First of all, the mathematical model was established on the ...

A model with six mutually exclusive compartments related to dengue is studied. Three vector control tools are considered: insecticides larvicide and adulticide and mechanical control. The basic reproduction number associated to the model is presented. ...

With the development of computer science and technology, image mosaic technology has been widely used in various fields including satellite remote sensing technology, image magnification and synthesis technology. Image magnification and synthesis is one ...

A strategy is proposed to control the direct-drive permanent magnet wind power system in this paper, and a back-to-back PWM converter control method is employed in both generator side and grid side. With respect to generator side, the optimum tip-speed ...

Electric locomotive work in harsh conditions, for its drive system, the AC drive system is more adaptable than the DC drive system. A novel EMF-oriented vector control method is studied in AC drive system, and industrial test of the control strategy is ...

In the induction motor frequency control system, the variation of rotor resistance which can be changed by the temperature rise and skin effect affects the estimation of rotor flux. The precise of rotor resistance restricts the performance of the ...

The paper study object is the CNC servo system, and it presented three closed-loops control strategy based on PMSM. Through dynamic mathematical model of current loop, rotational speed loop and position loop were established and simplified. The closed-...

Expected voltage vector technology is a new method which is used to select the voltage vector in the SVPWM control technology ", "it has overcome the disavantages that voltage vector quantity is limited and discrete distribution in the CHBPWM control. ...

The structure of a distributed power generation system based on renewable energy is presented. The energy complementary control principle is introduced for this system. A mathematical model of the system is built according to the energy complementary ...

Constant apparent reactive power compensation technology of the Double-fed Machine is studied theoretically, and the mathematical models of constant apparent power control are established in accordance with vector control of the Double-fed Machine. ...