CAJ | 학술논문

针对在线策略优化约束和控制措施考虑不足以及计算速度无法满足在线要求等问题，基于参与因子、综合电气距离、无功电压灵敏度及安全稳定裕度，提出了直流系统功率紧急调制、切机、切负荷和局部电网解列的量化控制性能指标和两阶段在线策略优化集群计算方法。在各阶段计算中，依据控制措施性能指标进行措施组合，形成计算任务，按控制代价对计算任务排序形成调度队列，提交集群系统进行并行计算。首先计算暂态功角稳定紧急控制策略，实现直流紧急调制与切机和匹配切负荷的协调；然后，在暂态功角稳定策略的基础上，进行暂态电压和频率安全稳定策略的计算，实现暂态功角稳定控制与暂态电压和频率安全稳定控制的协调。仿真实例验证了算法的有效性。
침대재선책략우화약속화공제조시고필불족이급계산속도무법만족재선요구등문제，기우삼여인자、종합전기거리、무공전압령민도급안전은정유도，제출료직류계통공솔긴급조제、절궤、절부하화국부전망해렬적양화공제성능지표화량계단재선책략우화집군계산방법。재각계단계산중，의거공제조시성능지표진행조시조합，형성계산임무，안공제대개대계산임무배서형성조도대렬，제교집군계통진행병행계산。수선계산잠태공각은정긴급공제책략，실현직류긴급조제여절궤화필배절부하적협조；연후，재잠태공각은정책략적기출상，진행잠태전압화빈솔안전은정책략적계산，실현잠태공각은정공제여잠태전압화빈솔안전은정공제적협조。방진실례험증료산법적유효성。
In view of insufficient consideration of the online strategy optimization constraining and control measures as well as the calculating speed that cannot meet the online requirements,a control performance index calculating method for DC power emergency modulation,generator tripping,load shedding and partial resection grid islanding is developed based on the participation factors,comprehensive electrical distance,reactive power-voltage sensitivity,and security-stability margin.In addition,a two-stage clustered computing method for online optimization strategy is proposed.At each stage,according to the control performance index,all control measures are combined to form the computing task with the scheduled queue to be submitted to the clustered system for parallel computation.Firstly,the transient angle stability emergency control strategy is computed to realize coordination among emergency DC modulation,generator tripping and load shedding.Secondly,on the basis of the optimal transient angle stability control strategy,the emergency control strategy of transient voltage and frequency security and stability is computed to realize the coordination between the transient angle stability with the security and stability of transient voltage and frequency.The simulation results have verified the validity of the proposed computing method.