基于RTDS的微型燃气轮机发电系统实时仿真研究

Real⁃time simulation study of micro gas turbine power generation system based on RTDS

基于RTDS实时仿真平台,建立采用双SVPWM换流器的微型燃气轮机发电系统的仿真模型,系统电机侧采用电压电流控制,控制直流侧电压稳定;电网侧采用PQ双闭环控制,控制微型燃气轮机的功率输出以满足电网或负荷的功率需求。研究负荷变化情况下微型燃气轮机发电系统的实时仿真运行情况。仿真结果表明:微型燃气轮机发电系统在负荷变化时具有良好的动态稳定性,满足系统负荷输出的需求。将微型燃气轮机部分使用Matlab/Simulink代码生成技术转化成RTDS的一个自定义模块,在RTDS上进行实时仿真测试,验证了C代码转化跨平台实验的正确性和可行性。

A simulation model of micro gas turbine power generation system with dual SVPWM(space vector pulse⁃width⁃modulation)converter is established based on real⁃time simulation platform RTDS(real⁃time digital simulator).The voltage&current control is adopted for the motor side of the system to control the voltage stability at the DC side.The PQ double closed⁃loop control is adopted at the power grid side to make the power output of the micro gas turbine satisfy the power requirements of the grid or load.The real⁃time simulation operation of micro gas turbine power generation system in the case of load variation is studied.The simulation results show that the micro gas turbine power generation system has good dynamic stability when the load changes and can meet the demand of system load output.The micro gas turbine was transformed into a custom module of RTDS by Matlab/Simulink code generation technology,and then a real⁃time simulation test was performed on RTDS.The results of the simulation verifies the correctness and feasibility of cross⁃platform experiment of C code transformation.