CAJ | 학술논문

　　变桥臂多电平变流拓扑(alternate-arm multi-level converter，A2MC)是应用于电压源换流器直流输电的新型多电平换流器拓扑。该文阐述了一种新型全桥变桥臂多电平变流拓扑(full-bridge alternate-arm voltage source converter, FA2MC)的工作原理；针对该新型换流器拓扑，从桥臂能量平衡的角度，对其子单元电容参数进行了合理设计，并针对各子单元电容电压均衡的问题，给出了一种简单有效的电压控制策略及桥臂电感参数选取依据。对该拓扑进行了三相并网模型 PSIM 仿真，并在实验室制作了单相样机，得到的仿真及实验波形验证了该拓扑结构的电容电感参数设计及子单元电容恒压策略的正确性和可行性。
　　변교비다전평변류탁복(alternate-arm multi-level converter，A2MC)시응용우전압원환류기직류수전적신형다전평환류기탁복。해문천술료일충신형전교변교비다전평변류탁복(full-bridge alternate-arm voltage source converter, FA2MC)적공작원리；침대해신형환류기탁복，종교비능량평형적각도，대기자단원전용삼수진행료합리설계，병침대각자단원전용전압균형적문제，급출료일충간단유효적전압공제책략급교비전감삼수선취의거。대해탁복진행료삼상병망모형 PSIM 방진，병재실험실제작료단상양궤，득도적방진급실험파형험증료해탁복결구적전용전감삼수설계급자단원전용항압책략적정학성화가행성。
Alternate-arm multi-level converter (A2MC) is a new voltage source converter high voltage direct current transmission (VSC-HVDC) converter topology. This paper describes the principle of a improved full-bridge alternate-arm multi-level converter. Sub-unit capacitance parameters are designed based on the energy balancing of the arm. A simple and effective voltage control strategy and bridge arm inductance parameter selection method is given to balance the sub-unit capacitor voltage. The correctness and feasibility of the present control strategy and capacitance and inductance parameter design method are verified by the three-phase simulation model built in PSIM and single-phase prototype built in the laboratory.