华北—华中—华东交直流输电系统数模混合仿真Digital and Analog Hybrid Simulation of Interconnected UHVAC/UHVDC Transmission System From North China via Central China to East China
郭剑波;周俊;郭强;朱艺颖;胡涛;董鹏;呙虎;刘翀;李新年;刘耀;陈凌芳;
摘要(Abstract):
将全数字实时仿真与高压直流输电物理仿真装置相结合,建立了三华等值电网的详细电磁暂态实时仿真模型和物理直流系统仿真模型。详细模拟了"三纵三横一环网"特高压网架,主要针对以下内容进行了实时仿真试验研究:直流系统双极紧急停运;直流多落点地区交直流相互影响。试验结果表明:±500 kV和±660 kV直流系统发生双极闭锁故障时,无需采取安稳措施;±800 kV直流输电系统发生双极闭锁故障时,送端系统通过适当切机措施确保恢复稳定运行;华东直流多落点地区交流故障会导致该地区多回直流发生换相失败,但均在交流故障清除后相继恢复功率输送,系统恢复稳定运行;2015年"三纵三横一环网"三华电网安全稳定性满足《电力系统安全稳定导则》要求,网架结构可行。
关键词(KeyWords): 数模混合模拟;三华电网;特高压交直流;安全稳定;多馈入直流系统;换相失败
基金项目(Foundation):
作者(Author): 郭剑波;周俊;郭强;朱艺颖;胡涛;董鹏;呙虎;刘翀;李新年;刘耀;陈凌芳;
Email:
DOI: 10.13335/j.1000-3673.pst.2011.09.017
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