SVPWM Strategy for Three-Level Inverter Based on SVPWM Strategy for Two-Level Inverter
Jiang Weidong1, 2, Wang Qunjing1, 2, 3, Chen Quan3, Shi Xiaofeng1
1. Hefei University of Technology Hefei 230009 China 2. Research Center for Photovoltaic System Engineering Ministry of Education Hefei 230009 China 3. Anhui University Hefei 230009 China
Based on the intrinsic relationship between SVPWMs for two-level inverters and three-level inverters, a novel SVPWM control algorithm is proposed for three-level. The dwell time of voltage vector for three-level inverter can be acquired from counterpart for two-level inverter by using a linear transformation. Aiming to analysis the output PWM sequence of three-level inverter, a novel classification standard of voltage vector is proposed. Based on evaluating the PWM sequences, a novel PWM sequence is given, that can reduce the total harmonics distortion of inverter output. The control strategy can be extended to five or seven-level inverters easily. At last, the proposed algorithm is verified on prototype in laboratory.
姜卫东, 王群京, 陈权, 史晓锋. 一种完全基于两电平空间矢量调制的三电平空间矢量调制算法[J]. 电工技术学报, 2009, 24(1): 108-114.
Jiang Weidong, Wang Qunjing, Chen Quan, Shi Xiaofeng. SVPWM Strategy for Three-Level Inverter Based on SVPWM Strategy for Two-Level Inverter. Transactions of China Electrotechnical Society, 2009, 24(1): 108-114.
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2009, Vol. 24 
