scholarly journals Evaluation of harmonic current effect and distribution line voltage control ability of reactive power control by use of power factor correction converter in consumer load

2020 ◽  
Vol 211 (1-4) ◽  
pp. 3-14
Author(s):  
Ken‐ichi Kondo ◽  
Jumpei Baba
Keyword(s):  
Power Control ◽  
Power Factor ◽  
Reactive Power ◽  
Power Factor Correction ◽  
Voltage Control ◽  
Current Effect ◽  
Harmonic Current ◽  
Reactive Power Control ◽  
Line Voltage ◽  
Distribution Line

Reactive Power Control of Mega-Solar System for Voltage Regulation with Long Distribution Line

2017 ◽  
Vol 201 (1) ◽  
pp. 38-56 ◽  
Author(s):  
KOUICHIRO KOUNO ◽  
EIJI NAKANISHI ◽  
YOSHIAKI NAGANO ◽  
MASAHIDE HOJO
Keyword(s):  
Solar System ◽  
Power Control ◽  
Reactive Power ◽  
Voltage Regulation ◽  
Reactive Power Control ◽  
Distribution Line

scholarly journals Heuristic Coordinated Voltage Control Schemes in Distribution Network with Distributed Generations

Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2849
Author(s):  
Seok-Il Go ◽  
Sang-Yun Yun ◽  
Seon-Ju Ahn ◽  
Hyun-Woo Kim ◽  
Joon-Ho Choi
Keyword(s):  
Power Control ◽  
Reactive Power ◽  
Voltage Control ◽  
Distribution Networks ◽  
Control Voltage ◽  
Reactive Power Control ◽  
Distributed Generations ◽  
Control Scheme ◽  
Control Devices ◽  
Node Voltage

The voltage and reactive power control (Volt/VAR Control, VVC) in distribution networks has become a challenging issue with the increasing utilization of distributed generations (DGs). In this paper, a heuristic-based coordinated voltage control scheme that considers distribution voltage control devices, i.e., on-load tap changers (OLTC) and step voltage regulators (SVR), as well as reactive power control devices, i.e., DGs, are proposed. Conventional voltage control methods using non-linear node voltage equations require complex computation. In this paper, the formulation of simplified node voltage equations accounting for changes in tap position of distribution voltage control devices and reactive power changes of reactive power control devices are presented. A heuristic coordinated voltage control scheme using the proposed simplified node voltage equations is proposed. A coordinated voltage control scheme to achieve voltage control for nominal voltage and conservative voltage reduction (CVR) is presented. The results of the proposed schemes are compared with the results from the quadratic optimization method to confirm that the proposed schemes yields suitably similar results. Furthermore, a tap scheduling method is proposed to reduce the number of tap changes while controlling network voltage. The tap position is readjusted using a voltage control performance index (PI). Simulation results confirm that when using this method the number of tap changes is reduced. The proposed scheme not only produces reasonable performance in terms of control voltage of networks but also reduces the number of tap changes made by OLTC. The proposed control method is an alternative candidate for a system to be applied to practical distribution networks due to its simplified calculations and robust performance.

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