Voltage Stability Improvement of Distribution Networks by Enhancing DGs Impacts

摘要

Integration of Distributed Generation (DG) in electric power networks poses complexities and challenges to the system operator. The DGs can provide positive impact on the operation of the system if located and cited properly. This paper proposes the DG (Type I and Type III) placement and sizing algorithm to reduce system losses and improve the voltage profile of the system. Modal analysis and Continuous Power Flow (CPF) are used to determine the candidate buses for the DG placement. A voltage stability constrained optimal sizing of DG is obtained using Genetic Algorithm (GA). The superiority of the proposed algorithm has been verified by the various performance indices. The performance of the proposed methodology is investigated on standard IEEE-33 and IEEE-69 bus radial distribution system.