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When power system operates in an insecure condition, corrective control measures should be takin in time to eliminate constrains violation. Few of current corrective control approaches take load fluctuation into consideration, which may result in invalid measures. The present paper proposes a novel corrective control approach which takes load fluctuation into consideration. Firstly, the probability distribution of state variables and sensitivity coefficient matrixes are obtained by probabilistic power flow. Then a corrective control model considering worst situation of branch power and bus voltage amplitude is proposed. Case study shows that the approach is valid and effective.

A Corrective Control Approach Considering Load Fluctuation of the Power System