Decoupled and Modular Harmonic Compensation for Multilevel STATCOMs

作者：Munoz Javier A^*; Espinoza Jose R; Baier Carlos R; Moran Luis A; Guzman Johan I; Cardenas Victor M

来源：IEEE Transactions on Industrial Electronics, 2014, 61(6): 2743-2753.

DOI：10.1109/TIE.2013.2276058

• Harmonic compensation
• multilevel power converters
• power quality (PQ)
• static compensator (STATCOM)

A modular and decoupled approach to achieve harmonic cancellation in a multilevel Static Compensator (STATCOM) is presented in this paper. This work shows that it is possible to split the compensation tasks depending on the frequency components present on the line current that is intended to be compensated by using the superposition principle and the modular features of an H-bridge based multilevel STATCOM. This approach allows the implementation of the topology with dedicated modules in order to decouple and simplify the control algorithms. The H-bridge modules can be implemented with two different kinds of semiconductors: (i) slow switches for fundamental frequency compensation modules and (ii) fast switches for harmonic frequency compensation modules. As the modules meant for harmonic cancellation can self-regulate its dc voltage, they can follow the load requirements and thus operate with minimum power.

• 出版日期2014-6