基于 PSCAD TCR+TSC 混合型 SVC 的设计与仿真设计说明随着家用电及工业网负荷的增加，造成电压和电流波形畸变、引起功率因数降低、因此电能损耗增大等问题日益突出。为了解决这个问题，设计一种 TSC+TCR 混合型SVC 是针对无功补偿和谐波抑制是及有效的方式。基于针对若干单独型 SVC 在工作过程中的基本原理，进行相对深入的细致分析，并深入比较后，可基于现有的实际需求，针对 TCR+TSC 型 SVC 在工作过程中的基本原理，进行科学合理的综合研究，如其电压电流特性，协调控制原理，运行特性和损耗特性。因为 TCR 的原因，同时会产生谐波，因此需要添加滤波器来对谐波进行处理。根据需求再制定设计方案，完成主电路及控制系统设计和主要参数设定。最后，用PSCAD 软件建立了该 SVC 模型通过运行得到 TCR 触发角，TSC 投切情况及 PCC 端电压得到仿真图，可看到电压在波动时，SVC 进行动作以满足电网需求。关键词：无功补偿；TCR+TSC 型 SVC；PSCAD 仿真11 绪论DESIGN DESCRIPTIONWith the increase of household electricity and industrial network load, problems such as distortion of voltage and current waveforms, reduction of power factor, and thus increase of power loss become increasingly prominent. Reactive power compensation and harmonic suppression are effective measures to solve such problems, so a TSC+TCR hybrid SVC is designed.Through analyzing the principle of each individual SVC and comparing the characteristics, the principle of TCR+TSC SVC is studied according to the requirements, such as its voltage and current characteristics, coordination control principle, operation characteristics and loss characteristics. Because of TCR, harmonics will be generated at the same time, so filters need to be added to process the harmonics. According to the requirements, the design scheme is worked out again to complete the design of main circuit and control system and the setting of main parameters. Finally, PSCAD software is used to establish the SVC model. TCR trigger ...
