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为精细化研究水电机组水、机、电耦合过渡过程特性,为机网协调研究搭建精确水电机组实时仿真平台,研究开发了一种基于DSP与RTDS的水电机组实时混合仿真系统.其中,基于DSP的仿真系统实现水力-机械过渡过程的非线性实时仿真;RTDS系统完成电磁过程及负载与网络的仿真;基于DSP的仿真系统与RTDS系统间通过A/D、D/A实时通讯机制交换信息,形成一套两侧独立计算、数据实时交互的实时仿真系统.以楚穗直流孤岛系统的JAQ电厂水轮机调节系统为算例,其结果验证了该混合仿真系统的可行性和有效性.
In order to study the characteristics of hydro-mechanical, hydro-mechanical and hydro-mechanical coupling during the transition, a real-time simulation platform for hydroelectric generating units was established for the coordination of the grid and a real-time hybrid simulation system for hydroelectric units based on DSP and RTDS was developed. The simulation system realizes the nonlinear real-time simulation of hydraulic-mechanical transition process; the RTDS system completes the electromagnetic process and the simulation of load and network; the simulation system based on DSP exchanges information with RTDS system through A / D and D / A real- Form a set of real-time simulation system with independent computation and real-time data interaction on both sides.With the turbine control system of JAQ power plant in Chu-Sui DC island system as an example, the simulation results show the feasibility and effectiveness of the hybrid simulation system.