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针对目前柔性交流输电领域中广泛采用和研究的变压器式可控电抗器,提出一种双向无功控制原理,通过提高其副边补偿绕组中高次谐波滤波器电容的大小,实现不仅能吸收无功,而且可发出无功的双向补偿功能,从而在高压输电线路输送功率变化时,通过快速调整装设在控制绕组中的单个晶闸管模块的导通角,即可实现无功功率静态输出或吸收2种工作方式的控制,从而实现输电线路无功的柔性补偿。通过实验分析研究,证明所提出原理的可行性与正确性。
Aiming at the transformer controllable reactor which is widely used and studied in the field of flexible AC transmission, a bi-directional reactive power control principle is proposed. By increasing the size of the harmonic of the higher harmonic filter in the secondary side compensation windings, Work, and can send out the reactive bidirectional compensation function, thus can realize the static output or absorption of reactive power by rapidly adjusting the conduction angle of a single thyristor module installed in the control winding when the power transmission of the high voltage transmission line is changed 2 kinds of working methods of control, in order to achieve flexible reactive power transmission line compensation. Through experimental analysis and research, the feasibility and correctness of the proposed principle are proved.