常烨骙;刘娆;巴宇;王海霞;吕泉;李卫东;

• 1:大连理工大学电气工程学院

摘要(Abstract)：

在新能源广域消纳和特高压交直流混联的电网新特征下,频率控制模式及其控制性能评价方式应该发生改变。基于协同控制理念,提出了省网采用新的协同频率偏差控制模式(cooperationfrequencybias control,CFBC);针对交直流混联增强区域网间相互影响的情况,论述了交流互联采用联络线功率频率偏差控制模式、直流互联采用定频率控制模式的合理性;综合分析国内外电网评价标准,提出新的通用评价方法,包括长期的频差均方根值约束和短期的频率持续越限时间约束;建立针对网调和省调的两层级评价结构,并设置了新的频率偏差系数和控制偏差。仿真表明,省调采用CFBC模式有利于充分利用全网调节资源,实现频率快速恢复;网调采用联络线功率频率偏差控制模式益于实现交流互联区域网的自治管理以及责任的划分;该文评价方法既能满足电网长期和短期的运行要求,又能减少机组调节次数。

关键词(KeyWords)： 新能源消纳;特高压交直流;频率控制模式;自动发电控制;控制性能评价

Abstract:

Keywords:

基金项目(Foundation): 国家自然科技基金项目(51677018)~~

作者(Author): 常烨骙;刘娆;巴宇;王海霞;吕泉;李卫东;

Email:

DOI: 10.13335/j.1000-3673.pst.2018.0369

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