PSCAD/EMTDC程序与继电保护仿真模型接口技术及应用

介绍了PSCAD/EMTDC程序与C语言接口技术的原理,并以PSCAD/EMTDCV3.0.8仿真平台为例,用C语言建立了完整的数字化继电保护装置模型,包含了保护装置及重合闸的主要配置与主要环节,运用PSCAD/EMTDC程序与C语言的接口技术建立了串补电网故障暂态行为与继电保护装置、重合闸装置动作行为的闭环动态仿真系统,用于可控串补电网继电保护的暂态动作行为研究。仿真结果表明,通过PSCAD/EMTDC程序与C语言接口能正确地完成继电保护装置模型与电网一次模型之间的动态闭环控制,实现保护动作行为与仿真程序的信息交互。

Interface technique between PSCAD/EMTDC and relay protection simulation model and its application

The interface technique between PSCAD / EMTDC program and C language is presented.Taking PSCAD / EMTDC V3.0.8 as an example,an integrated digital relay protection model is estab-lished with C language,which contains main configurations and main sections of protective and reclosing equipment.With the interface technique,a dynamic close-loop simulation system is built to study the fault transient behavior and the protective and reclosing equipment behavior in series compensation power grid.Simulation results show that,the information can be properly exchanged between the protective equipment model and the power grid primary model to correctly carry out the dynamic close-loop control between models.