Abstract
Optimal reactive power dispatch (ORPD) plays a significant role in the control and smooth operation of the power system through the enhancement of the network’s reliability, security, and economic aspects. This paper presents a bibliometric and visual analysis of ORPD-related research articles extracted from the Web of Science (WoS) database from its inception to October 29, 2019. A total of 263 articles drawn from 166 journals, published between 1989 and 2019, were retrieved and analysed using Excel, HistCite, and VOSviewer visualisation software. The total number of citations for the 263 articles ranges from 0 to 297. The top three journals with the most significant number of ORPD publications were the International Journal of Electrical Power and Energy Systems, Applied Soft Computing, and two journals qualified for the third place, IEEE Transaction on Power Systems and IET Generation Transmission and Distribution. The most active researcher is Provas Kumar Roy, with nine (9) articles from Kalyani Government Engineering College. The most trending/cited researcher is Yi Jia Cao, with 129 Total Local Citation Scores from Hunan University, Changsha. In terms of contribution by countries, India, China, Iran, and the United States were the most significant contributors with 27.8%, 20.9%, 11.8%, and 8% of the total articles, respectively. The top 5 most frequently used substantive keywords to identify the trending topic and research direction were Particle Swarm Optimisation, Genetic Algorithm, Gravitational Search Algorithm, Linear Programming, Evolutional Algorithm, and Hybrid Algorithm. This study provides a detailed outline and reveals the future research directions for both experienced and novice ORPD researchers to identify research topics, questions, and collaboration partners.
Highlights
The economic stability of any nation has a direct link with the amount of energy it generates and consumes
Optimal reactive power dispatch (ORPD) is an essential optimisation aspect in an electrical power system that aids in achieving optimal reliability, security as well as cost-effective operation of the power system network
To generate a summary of the research progress and the future directions, this article has undertaken a bibliometric analysis on ORPD-related publications index in the Web of Science (WoS) database covering a period of 30 years (1989–2019)
Summary
The economic stability of any nation has a direct link with the amount of energy it generates and consumes. Based on this, there is a need for stable, sustainable, sufficient as well as reliable electrical power system network. Due to the rapid voltage fluctuations caused by the variation in consumer demands, there is need to device a suitable means of maintaining a stable load bus voltage, apparent power through the lines, as well as the reactive generator power [4]. Loss minimisation, as well as voltage balancing, needs to be adequately addressed in any power system network [5,6,7]. The two can be controlled by regulating and monitoring the magnitude of the bus voltages, transformer tap settings and capacitive reactive power injection while adhering to the units and system constraints [8, 9]
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