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A multilevel converter with reduced number of switches in STATCOM for load balancing

机译:STATCOM中减少开关数量的多级转换器,用于负载平衡

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In this paper, a 3-phase, delta-connected, 5-level Static Synchronous Compensator with a novel AC to DC converter is analyzed and implemented for load balancing in three-phase systems. The level shifted carrier based sinusoidal pulse width modulation (SPWM) method is used as the switching technique. This converter has less number of power switches than conventional H-bridge structure and it can be controlled from the standard PWM ports of microcontrollers. The control algorithm depends on sequence decomposition of load current and compensation of its negative sequence component in addition compensation of imaginary component of positive sequence. The simulation results obtained from Matlab are compared with the experimental results. The system is implemented in the laboratory by using DSP TMS320F28335. (C) 2015 Elsevier B.V. All rights reserved.
机译:在本文中,分析并实现了三相,三角形连接,五级静态同步补偿器和新型交流/直流转换器,以实现三相系统中的负载平衡。基于电平移位载波的正弦脉冲宽度调制(SPWM)方法被用作开关技术。与传统的H桥结构相比,该转换器的电源开关数量更少,并且可以从微控制器的标准PWM端口进行控制。该控制算法依赖于负载电流的序列分解及其负序分量的补偿以及正序虚分量的补偿。从Matlab获得的仿真结果与实验结果进行了比较。该系统通过使用DSP TMS320F28335在实验室中实现。 (C)2015 Elsevier B.V.保留所有权利。

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