摘要
在建立恒速恒频风电场数学模型基础上,采用PSCAD/EMTDC对包含风电场的单机无穷大系统发生三相接地故障时的情况进行了动态仿真,揭示出风场接入前后短路电流特性有很大不同。通过具体分析风场接入后电网电流保护、变压器保护和自动重合闸的动作行为,指出应改变相应继电保护及安全自动装置的配置以提高保护动作的可靠性。
Based on building mathematical models of CSCF wind farm, using electromagnetic trausient simulation tool PSCAD/EMTDC, the single-machine infinite-bus system interconnected with wind farm under three phases grounding fault was dynamically simulated. The paper revealed the characters of shot circuit current are different before and after interconnected wind farm. Through concretely analyzing operating behavior of power current protection, transformer protection and automatic reclosing interconnected with wind farm, this paper pointed out it should change configurations of corresponding relay protection and security automatic equipment in order to improve the protections reliability.
出处
《电力科学与工程》
2009年第7期12-15,共4页
Electric Power Science and Engineering
