基于RTDS的有源电力滤波器实物控制器闭环仿真技术

A RTDS Based APF Controller Closed-loop Simulation Method

为高效实现电力电子装置技术验证及测试,提出一种基于实时数字仿真仪(RTDS)的有源电力滤波器(APF)控制器闭环仿真测试方法,三相电网、负荷及APF逆变桥、直流侧电容和断路器等一次回路由RTDS中的软件进行模拟,APF控制和保护则采用实际装置中的控制板。通过5类信号调理模块解决APF控制器与RTDS软件模型之间的信号匹配问题,形成RTDS的实物控制器仿真实验标准接口。整体仿真模型在RTDS小步长环境中构建,提出绝缘栅双极型晶体管(IGBT)触发脉冲、保护控制信号逻辑、RTDS中短路故障模型、操作观察界面等核心模块建模方法,形成了完整的测试步骤和测试项目。通过将APF控制器的RTDS测试数据与实际装置的测试数据进行对比分析,验证了方法的有效性。

In order to perform technical identification and equipment testing of power electronic facilities,a method of active power filter(APF)controller closed-loop simulation based on real time digital simulator(RTDS)is presented.The primary circuit,including three-phase grid,load,inverter bridge of APF,DC-link capacitor and breaker,is simulated using the software provided by RTDS.The real control panel is used for the protection and control signal output.The standard interface board which composes of five different types of signal conditioners is employed to solve the signal matching problem between APF controller and the RTDS software model.The integrated simulation model is built in the RTDS' small-step environment and the core simulation modules,such as trigger pulse model of insulated gate bipolar transistor(IGBT),protection and control signal logic chart,short-circuit faults model and observing interface of RTDS are analyzed in details.These form the integrated test procedure and project for this research.Through the comparative analysis of the data between equipment test and controller closed-loop simulation based on RTDS,the method is validated.