Multi-Agent System-Based Hierarchical Protection Scheme for Distribution Networks With High Penetration of Electronically-Coupled DGs

An Online Free Penetration Multi-Stage Fuse Saving Protection Scheme in Distribution Systems with Photovoltaic Sources

In this paper, a multi-stage protective scheme is proposed to maintain the fuse and reclosers coordination. The proposed method operates online and proportional to the photovoltaic sources penetration rate. In the first step, a non-standard Current - Time - Voltage curve is used for fuse saving. If the new calculated TDS from the first stage is not implementable to the reclosers, the second sta...

Multi-agent based protection system for distribution system with DG

This paper introduces the basic structure of multi-agent based protection system for distribution system with DGs. The entire system consists of intelligent agents and communication system. Intelligent agents can be divided into three layers, the bottom layer, the middle layer and the upper layer. The design of the agent in different layer is analyzed in detail. Communication system is the brid...

Multi-Agent System based Active Distribution Networks

Protection Coordination Based on Multi-agent for Distribution Power System with Distribution Generation Units

-The penetration of DGs would drastically affect the traditional distribution power system fault current level and the characteristics of fault currents, consequently, the traditional protection arrangements developed in radial systems are difficult in coordination, and also the reclosing scheme would be affected. With the rapid developments in distribution system automation and communication t...

Distributed Voltage Control in Distribution Networks with High Penetration of Photovoltaic Systems

In this paper, a distributed method for reactive power management in a distribution system has been presented. The proposed method focuses on the voltage rise where the distribution systems are equipped with a considerable number of photovoltaic units. This paper proposes the alternating direction method of multipliers (ADMMs) approach for solving the optimal voltage control problem in a distri...