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发明公开
CN106712068A 一种并联混合直流输电系统及其无功调节优化方法 审中-实审 转让

一种并联混合直流输电系统及其无功调节优化方法
摘要：
本发明提供了一种并联混合直流输电系统及其无功调节优化方法，所述系统由常规直流输电系统和柔性直流输电系统并联组成，所述柔性直流输电系统包括柔性直流控制系统，所述柔性直流控制系统包括附加协调无功控制器。所述无功协调优化方法包括常规直流输电系统交流滤波器投入状态的无功协调方法和常规直流输电系统交流滤波器切除状态的无功协调方法。本发明提供的技术方案，优化了混合直流输电系统的无功控制策略，降低了由于常规直流输电系统投切交流滤波器操作所引起的无功波动，避免了系统无功的缺额或过剩对交流系统的无功冲击，抑制了动态交流电压变化。
摘要（英）：

The invention provides a parallel hybrid DC power transmission system and a reactive power regulation optimization method thereof. The system is formed by a conventional DC power transmission system and a flexible DC power transmission system, which are connected in parallel. The flexible DC power transmission system comprises a flexible DC control system. The flexible DC control system comprises an additional regulation reactive power controller. The reactive power regulation optimization method comprises a reactive power regulation method for a switch-in state of an AC filter of the conventional DC power transmission system and a reactive power regulation method for a switch-out state of the AC filter of the conventional DC power transmission system. The technical scheme optimizes reactive power control strategy of the hybrid DC power transmission system, reduces reactive fluctuations caused by switching operation of the AC filter of the conventional DC power transmission system, prevents reactive power impact to an AC system due to reactive power shortage or surplus of the system, and suppresses change of dynamic AC voltage.

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