Emergency security control strategy of new energy sending end system for multi-protection function configuration
In order to solve the problems of power surplus at the sending end of the new energy system after the fault and safe and stable operation after the fault,an emergency security control strategy for the new energy sending end system for multi-protection function con-figuration was proposed.Firstly,on the basis of multi-protection function configuration,the safety control index of emergency control de-cision was proposed,the emergency decision sensitivity was established.Secondly,considering the comprehensive operation risk and safety control action strategy of the new energy sending end system as the goal,combined with emergency decision sensitivity and safe operation as constraints,a security control strategy model of new energy sending end system was established.Then,in order to expand the search range and improve the local search ability,a variety of improvement strategies based on the Harris Hawk Optimization(HHO)algorithm was introduced,to meet the needs of accurate solution of the security control model.Finally,the numerical simulation was car-ried out in the IEEE39 node system.The simulation results show that the proposed security control index can accurately reflect the sta-bility margin of the system,and the decision-making method proposed in this paper can effectively restore the stability of the system for different instability conditions.
security control strategyHarris Hawk Optimization Algorithmnew energy sending end systemtripping strategy
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维普
