基于电磁环网频率稳控的仿真控制策略探究

Stabilization of Electromagnetic Loop Network

为探究电磁环网短期无法解环的特性问题,以贵州某区域电网为仿真对象,提出借助柔性直流输电系统注入短路电流的方法,以达到独立解耦和提高电磁环网频率稳控的目的。重点研究故障后系统有功失衡计算、柔性直流控制系统和柔性直流保护系统,并以此构建仿真控制模型。仿真结果表明所提稳控方法可帮助柔性直流在电磁环网中处于稳定状态,具有科学性与可行性,可为相关人员或单位提供参考帮助。

In order to investigate the short-term unsolvable loop characteristics of electromagnetic loop network,a method of injecting short-circuit current with a flexible DC electric power transmission is proposed in this paper,in order to achieve independent decoupling and better control of the electromagnetic loop frequency stability.The research focuses on post-fault active power unbalance calculation,and flexible DC control system and flexible DC protection system,and establishes the simulation control model.The simulation results prove the rationality and feasibility of the proposed stability control method,as it can help to maintain the stable state of the flexible DC in the electromagnetic ring network.