Economic Evaluation Method for the Voltage Dip Problem

The reasonable selection of voltage dip treatment equipment is beneficial to improve the user’s economic efficiency and reduce the user’s power consumption risk, thus greatly improving the power quality of the user’s periphery and even the entire power grid. In order to make up for the lack of integrity of the existing voltage dip governance strategy, according to the economic analysis of the voltage dip treatment equipment, an economic benefit model based on the annual value method is proposed, taking into account the user’s economic loss and investment cost, and adopting Particle swarm optimization. Taking DVR and UPS equipment as an example, a sensitive load factory is selected for case analysis to verify the applicability of the proposed model.