A simple PV inverter power factor control method based on solar irradiance variation

Author(s):  
Nuri Gokmen ◽  
Weihao Hu ◽  
Zhe Chen
2012 ◽  
Vol 132 (4) ◽  
pp. 309-316 ◽  
Author(s):  
Shoji Kawasaki ◽  
Noriaki Kanemoto ◽  
Hisao Taoka ◽  
Junya Matsuki ◽  
Yasuhiro Hayashi

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 12484-12494 ◽  
Author(s):  
Jae-Chang Kim ◽  
Sangshin Kwak ◽  
Taehyung Kim

2013 ◽  
Vol 655-657 ◽  
pp. 1169-1174
Author(s):  
Bing Han ◽  
Jian Ying Xu ◽  
Shan Qiao

For the traditional sensorless vector control systems of permanent magnet synchronous motor, a new sensorless vector control method is proposed based on the power factor control. On the basis of analysis of the mathematical models for the permanent magnet synchronous motor, established a power factor voltage reference frame system. The rotor position and speed is estimated by the control of power factor angle, and then from the point of view of efficiency drive to configure the stator current. This stator current is arranged in the vicinity of the current minimum trajectory. This method not only can control the speed, but also ensure high power factor and high drive efficiency of the permanent magnet synchronous motor. The simulation results proved the effectiveness and feasibility of this control method.


Author(s):  
Gang Li

Three-phase to single-phase matrix converter (TSMC) is used as the transmitter for transient electromagnetic method (TEM) instrument, instead of an AC-DC converter and an H-bridge inverter. The transmitter produces excitation current for primary field. The output current has a waveform with a bipolar square of half duty cycle, which is required by TEM. The space vector PWM based on input currents is discussed in detail. The control method of input power factor is proposed for TSMC. The simulation model of TSMC is established and the simulations of different conditions are completed. The simulation results show the controllability of the input power factor is illustrated.


2014 ◽  
Vol 986-987 ◽  
pp. 1809-1812
Author(s):  
Wei Sun ◽  
Kui Hua Wu ◽  
Bo Yang ◽  
Rong Liang ◽  
Jian Wang ◽  
...  

In view of the problems that traditional direct current control calculation is complex, that sensor precision requirements are high. This paper proposes a new control method of unit power factor power converter, which is easy to realize with simple control structure dispense with current sensor. Through the simulation and experimental verification, the control strategy can achieve unity power factor control, and the harmonic content is small and the operation is stable.


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