Research on reactive power adjustment measures for photovoltaic power stations in distribution networks

Reactive voltage optimization is often based on optimal power flow calculation to achieve safe and economical operation of the power system. When the system parameters change, the optimal power flow calculation involves more parameters and is time-consuming. In the distribution network, low-voltage photovoltaic power stations with distributed access can only rely on changing the reactive power compensation capacity for voltage control. The reactive power compensation amount obtained from the voltage regulation coefficient acts quickly, but it can cause the problem of multiple actions of the reactive power compensation device. This article is based on automatic identification of system reactance parameters. When the system parameters change, the system reactance can be automatically identified to reduce the impact of system operation on reactive power compensation. An improved adjustment method for reactive power compensation is constructed, which can ensure voltage compliance and reduce the number of actions of reactive power compensation devices.