CAJ | 학술논문

为提高含双馈感应发电机（doubly．fed induction generator，DFIG）的电网暂态仿真效率，提出一种多步长快速暂态仿真方法。该方法在系统积分步长不变的情况下，通过可变参数改变双馈感应发电机模型的积分步长。对双馈感应发电机模型在改变后的步长下进行数值计算，此过程无需求解电力系统网络方程，当双馈感应发电机模型的积分时间和系统积分时间同步时，双馈感应发电机模型与系统其他元件统一进行精确的数值计算。简单系统和经典电力系统的仿真计算结果表明，所提仿真方法计算速度快、精度高，是一种有效、实用的计算方法。
위제고함쌍궤감응발전궤（doubly．fed induction generator，DFIG）적전망잠태방진효솔，제출일충다보장쾌속잠태방진방법。해방법재계통적분보장불변적정황하，통과가변삼수개변쌍궤감응발전궤모형적적분보장。대쌍궤감응발전궤모형재개변후적보장하진행수치계산，차과정무수구해전력계통망락방정，당쌍궤감응발전궤모형적적분시간화계통적분시간동보시，쌍궤감응발전궤모형여계통기타원건통일진행정학적수치계산。간단계통화경전전력계통적방진계산결과표명，소제방진방법계산속도쾌、정도고，시일충유효、실용적계산방법。
In order to improve the transient simulation efficiency of power grid with doubly-fed induction generator （DFIG） included, a multi-step fast simulation method was proposed. Under constant system integration step size, the integration step size of DFIG can be changed by the variable parameter. Thus the numerical calculation of DFIG model can be gained based on the changed step size, and the solution of network equations in power system is unnecessary. What＇smore, when the integration time of DFIG synchronizes with the system＇s integration time, DFIG model should be combined with other elements in power system for exact numerical calculation .The simulation results under both simple power system and classical power system show that the proposed method, with fast calculation speed and high precision, is not only effective but also practical.