CAJ | 학술논문

为了检验换流阀合成试验回路控制和保护系统的性能,给出一种在 RTDS上用小步长算法对合成试验回路一次系统进行建模仿真的方法.分析了换流阀合成试验回路的工作原理,得出其对控制保护系统的需求,使用 RTDS小步长算法来建立合成试验回路一次系统模型.并针对该算法用于合成回路试验仿真时的限制,尤其是在低电压仿真中的不足,采用提高换流变电压的方法来“等效模拟”,能够正确仿真电压源和电流源的配合工作工程.仿真结果表明,使用RTDS小步长算法建立的模型能准确模拟阀的实际工况,仿真试验环境成功进行了合成试验回路的所有试验,取得了良好的试验效果.
위료검험환류벌합성시험회로공제화보호계통적성능,급출일충재 RTDS상용소보장산법대합성시험회로일차계통진행건모방진적방법.분석료환류벌합성시험회로적공작원리,득출기대공제보호계통적수구,사용 RTDS소보장산법래건립합성시험회로일차계통모형.병침대해산법용우합성회로시험방진시적한제,우기시재저전압방진중적불족,채용제고환류변전압적방법래“등효모의”,능구정학방진전압원화전류원적배합공작공정.방진결과표명,사용RTDS소보장산법건립적모형능준학모의벌적실제공황,방진시험배경성공진행료합성시험회로적소유시험,취득료량호적시험효과.
@@@@ In order to test the performance of control and protection of thyristor valve synthetic test circuit (STC), small step algorithm is put forward in the modeling process of the primary system of STC. This paper analyzes the operating principle of the STC, works out its requirements for the control and protection system, and sets up the STC primary system model with RTDS small step algorithm. This paper aims at the restrictions of small step algorithm in simulating the STC, especially in the low voltage simulation, and proposes “equivalent simulation” by raising the converter transformer voltage, so the interaction process between voltage source and current source can be simulated correctly. The results of simulation test show that the model established with RTDS small step algorithm can imitate the valve’s operating condition accurately. All the tests of the synthetic test circuit are conducted successfully in the simulation test environment, and reach a good trial effect.