CAJ | 학술논문

针对静态电压稳定预防控制实用性的问题,提出一种在线静态电压稳定预防控制算法。该算法引入未来时刻发电机功率分配因子作为电压稳定裕度的控制变量,利用电压稳定裕度对各类控制参数的灵敏度信息,通过集中调度和预选参与调度集等策略,形成预防控制所需要的线性规划模型,给出预防电压失稳的调度方案。算法的优点是可将严重故障和失稳故障放在统一的模型中求解;引入未来时刻发电机功率分配因子作为电压稳定裕度的控制变量,可有效地减少其他控制参数的调整量。对湖南实际电网750节点系统的试验,证明了所提方法的有效性和实用性。
침대정태전압은정예방공제실용성적문제,제출일충재선정태전압은정예방공제산법。해산법인입미래시각발전궤공솔분배인자작위전압은정유도적공제변량,이용전압은정유도대각류공제삼수적령민도신식,통과집중조도화예선삼여조도집등책략,형성예방공제소수요적선성규화모형,급출예방전압실은적조도방안。산법적우점시가장엄중고장화실은고장방재통일적모형중구해;인입미래시각발전궤공솔분배인자작위전압은정유도적공제변량,가유효지감소기타공제삼수적조정량。대호남실제전망750절점계통적시험,증명료소제방법적유효성화실용성。
In allusion to the practical problems for preventive control,an on-line preventive control algorithm for static voltage stability in large-scale power system was presented.The generation power distribution factor for coming future was introduced as control parameters for static voltage stability margin,based on sensitivity information of loading margin with respect to control parameters,the centralize scheduling strategy and the candidate control group strategy were used to establish a linear programming model for preventive control,and then the control scheme to avoid voltage instability was given.The feature of this algorithm is that serious contingencies and unstable contingencies can be solved in the same mathematical model;The adjusted amount of other control parameters will be reduced through the application of generation power distribution factors in the future.Tests with a practical 750-bus power system indicate that the proposed method is effective and applicable.