CAJ | 학술논문

随着广域测量系统（WAMS）技术的快速发展和广泛应用，它为电力系统建模和仿真分析提供了更加精确的实测动态数据。借助同步相量测量单元（PMU）测得的动态电压、电流和功率数据作为时变注入量，进行混合动态仿真可以实现互联电网的电气解耦仿真，并准确地计及外部网络或模型的动态特性和影响。介绍了基于注入时变电压、时变电流和时变功率的3种混合动态仿真方法的基本原理和计算流程，然后分析了这3种不同时变量测注入混合仿真方法的仿真误差产生原因。最后，通过四机双区域系统仿真分析比较了这3种方法的可行性和有效性。
수착엄역측량계통（WAMS）기술적쾌속발전화엄범응용，타위전력계통건모화방진분석제공료경가정학적실측동태수거。차조동보상량측량단원（PMU）측득적동태전압、전류화공솔수거작위시변주입량，진행혼합동태방진가이실현호련전망적전기해우방진，병준학지계급외부망락혹모형적동태특성화영향。개소료기우주입시변전압、시변전류화시변공솔적3충혼합동태방진방법적기본원리화계산류정，연후분석료저3충불동시변량측주입혼합방진방법적방진오차산생원인。최후，통과사궤쌍구역계통방진분석비교료저3충방법적가행성화유효성。
The rapid development and wide application of the wide area measurement system (WAMS) provides a more accurate dynamic data source for power system modeling and simulation. With different values of dynamic voltage,current and power measured by Phasor Measurement Unit(PMU)used as time-varying injections,the power system can be well split through the mixed dynamic simulation and the dynamic chara-cteristics of external networks or models can be accurately simulated. This paper firstly introduces the principle and calculation process of three hybrid dynamic simulation methods with time-varying voltage, time-varying current and time-varying power injections respectively,and then analyzes the reasons that lead to the simulation differences. Finally,the suitability and effectiveness of the three methods are compared through a four-machine two-area system.