【摘要】 基于实时数字仿真器和特高压直流控制保护样机搭建了云南—广东±800kV特高压直流输电实时闭环仿真系统。在该仿真环境中对云南—广东±800kV特高压直流输电系统"孤岛"运行方式下的送端交流系统故障进行了仿真研究,分析了系统失稳的原因,提出了提高系统稳定的控制措施,并通过仿真试验验证了控制措施的有效性。研究结果可为今后±800kV云南—广东特高压直流输电系统"孤岛"运行方式下系统运行提供参考。更多还原

【Abstract】 Using real-time dagital simulator (RTDS) and the prototype of control-protection equipment for UHVDC power transmission,a real-time closed-loop simulation system for ±800 kV DC power transmission is built and by which the simulation of fault happened in AC system at sending end under the islanded operation of ±800kV DC transmission system from Yunnan to Guangdong is carried out,the reasons causing system instabiltiy are analyzed and the control measures to improve system stability are proposed and validated by simulative tests.更多还原