Development of Discrete CoFFWA for Distribution Network Reconfigurations

Abstract

In this article, an efficient Discrete CoFFWA method is proposed to deal with distribution network reconfigurations. It is useful for minimizing the active power network losses by switching on/off sectionalizing switches and shunt capacitors. The mathematical formulation may be expressed as one of combinatorial optimization problems. This article presents a discrete version of cooperative framework for fireworks algorithm (CoFFWA) of advanced metaheuristics to solve distribution network reconfigurations efficiently. It is one of the efficient Fireworks Algorithms that imitate the behavior of firework explosion. To improve the solution accuracy, CoFFWA makes use of new strategies such as the independent selection method and the crowdnessavoiding cooperative strategy. The proposed method transforms CoFFWA into discrete one with multipoint mutation. The proposed method is successfully applied to the IEEE 69-node and 119-node distribution networks. K E Y W O R D SCoFFWA, distribution automation, distribution networks, fireworks algorithm, metaheuristics, network reconfigurations, optimization Electr Eng Jpn. 2018;205:55-62.

Comprehensive Solution Method Considering Load Distribution for Determining Low‐Voltage Network Configurations

“…Residential PVs are often mainly connected in single-phase to low-voltage networks, and the problems related to the massive PV installation were identified from early on. Various methods have been developed to maintain power quality and reduce distribution loss [1][2][3][4][5][6][7][8][9][10]. For example, researchers have proposed various methods for voltage control issues by using effective devices such as storage batteries, on-load tap changing transformers, or static VAR compensators to manage voltage increases and fluctuations [1][2][3].…”

“…As examples, hierarchical control methods, determination a Correspondence to: Yoshifumi Zoka. E-mail: zo@hiroshima-u.ac.jp methods considering reconnection of distributed generators, and a method using a discrete cooperative framework [4][5][6].…”

“…Meanwhile, several methods have been proposed to deal with power losses in the distribution system. As examples, hierarchical control methods, determination methods considering reconnection of distributed generators, and a method using a discrete cooperative framework [4–6].…”

A Study on the Configuration of Low‐Voltage Distribution Networks for High Penetration of Photovoltaic Power Sources

“…Residential PV sources are mainly connected to low‐voltage networks in a single phase, and the problems related to the massive introduction of those power sources were identified from early on. A considerable number of methods to maintain power quality or reduce power distribution losses have been developed and reported [1–11]. For example to counter voltage increase and fluctuation, voltage control methods using load tap change transformer, static reactive power compensator, and storage battery have been already developed [1–4]; to reduce power losses of distribution networks, high‐voltage distribution network configuration planning methods [5–7] and reconfiguration methods by switch operation have been so far reported [8–10].…”