Research on Bias Control of 3 Phase-1 Phase Matrix Converter Based on Model Predictive Control
Song Weizhang1, Liu Jiang1, Sun Xiangdong1, Gao Daqing2, Wang Youyun3, Zhong Yanru1
1. Department of Electrical Engineering Xi’an University of Technology Xi’an 710048 China;; 2. Institute of Modern Physics Chinese Academy of Sciences Lanzhou 730000 China; 3. State Key Laboratory of Large Electric Drive System and Equipment TechnologyTianshui 741020 China
Abstract In this paper, a model predictive control with transformer DC magnetic bias suppression is proposed to reduce the poor disturbance resistance caused by the middle side of the Reduced matrix converter (3-1MC) without energy storage capacitor. The randomness of the model predictive control switch is easy to cause the transformer DC magnetic bias. Under the premise of not changing the hardware circuit, two schemes are introduced in the model predictive control pulse sequence distribution link or the quality function by the magnetic bias suppression. A prototype is built to verify the scheme, and the experimental results show that the 3-1MC system has strong anti-interference ability under the model predictive control. The scheme 1 improves the magnetic bias phenomenon, and the scheme 2 can effectively solve the magnetic bias problem of transformer under the model predictive control.
Song Weizhang,Liu Jiang,Sun Xiangdong等. Research on Bias Control of 3 Phase-1 Phase Matrix Converter Based on Model Predictive Control[J]. Transactions of China Electrotechnical Society, 2019, 34(12): 2489-2498.
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2019, Vol. 34 
