Reactive power optimization method for AC/DC system based on two-layer planning and considering voltage stability
A technology for AC and DC systems and voltage stability, applied in the directions of reactive power compensation, AC network voltage adjustment, reactive power adjustment/elimination/compensation, etc. Improved voltage distribution and guaranteed convergence
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[0018] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0019] According to the two-level programming theory, a reactive power optimization mathematical model of AC and DC systems is established considering the voltage stability margin; the upper model takes the minimum active network loss of the system as the objective function, and is constrained by the power flow equation under normal operating conditions and a series of inequalities Constraint conditions are formed. According to the characteristics of the model, the upper layer adopts a hybrid optimization algorithm combining genetic algorithm and primitive-dual interior point method; the lower layer model takes the maximum voltage stability margin of the system as the objective function, and uses power flow equality constraints and inequality constraints as constraints Composition, using a hybrid algorithm combining genetic algorithm and conti...
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