Optimal Allocation of Distribution Network Reactive Power Compensation Using the Value Contribution Coefficient of Voltage Stability
With users' increasing requirement for voltage quality,the enhancement of voltage stability in distribution networks becomes an important task for power supply enterprises.Conventional allocation scheme only focuses on reducing power loss and guaranteeing voltage qualification,but attaches less importance to the enhancement of voltage stability.In this paper,a voltage stability index for distribution networks is analyzed and selected,and a multi-objective optimal allocation model is established for reactive power compensation in distribution networks considering operation loss reduction,voltage qualification,compensation allocation investment and maintenance cost saving and voltage stability enhancement.This model is effectively solved through constructing the value contribution coefficient of voltage stability and adopting QGA method.Results of an instance demonstrate that the optimal allocation scheme is directly influenced by the value contribution coefficient of voltage stability,and the corresponding optimal allocation scheme to its reasonable value depends on a comprehensive analysis of the factors such as annual cost per compensation capacity,total compensation capacity,voltage stability and operation power loss during maximum load period with the value contribution coefficient in accordance with the actual situation in a specific distribution network.
distribution networkreactive power compensationoptimal allocationvalue contribution coefficientvoltage stabilityquantum genetic algorithm
NETL
NSTL
万方数据
维普
