Nonlinear reactive power control scheme to maximize penetration of distributed generation in distribution networks

2017 ◽  
Author(s):  
Amrit Singh ◽  
Peter W. Lehn
Keyword(s):  
Power Control ◽  
Distributed Generation ◽  
Reactive Power ◽  
Distribution Networks ◽  
Reactive Power Control ◽  
Control Scheme

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.

A Reactive Power Control Scheme for DER-Caused Voltage Rise Mitigation in Secondary Systems

2019 ◽  
Vol 10 (4) ◽  
pp. 1684-1695 ◽  
Author(s):  
Dawit Fekadu Teshome ◽  
Wilsun Xu ◽  
Pooya Bagheri ◽  
Alexandre Nassif ◽  
Yaxiang Zhou
Keyword(s):  
Power Control ◽  
Reactive Power ◽  
Reactive Power Control ◽  
Voltage Rise ◽  
Control Scheme ◽  
Secondary Systems

scholarly journals Approaches to establishing voltage control requirements for distributed generation units

2019 ◽  
Vol 139 ◽  
pp. 01006
Author(s):  
Pavel Ilyushin ◽  
Petr Berezovskiy ◽  
Sergey Filippov
Keyword(s):  
Power System ◽  
Power Control ◽  
Distributed Generation ◽  
Reactive Power ◽  
Voltage Control ◽  
Reactive Power Control ◽  
Technical Standards ◽  
National Regulation ◽  
Technical Requirements ◽  
Generating Equipment

Analysis of Russian national regulation and technical standards requirements for generating equipment participation in voltage and reactive power control in the power system carried out. Summary of some international experience in voltage control organization under conditions of distributed generation units’ deep integration in public grid is presented in article. Advantages of voltage and reactive power control automation over decentralized and poorly coordinated control are substantiated. Problematic aspects of distributed generation units (including RES) integration, as well as ENTSO-E approaches to voltage and reactive power control in the synchronous zone of continental Europe are considered. Technical requirements of Deutsch and Danish regulations, regarding participation of distributed generation facilities in voltage control are given. Approaches to establishing voltage control requirements for distributed generation units’ operation with national power system are presented.

scholarly journals Distributed Reactive Power Control Scheme for the Voltage Regulation of Unbalanced LV Grids

2020 ◽  
pp. 1-1
Author(s):  
Georgios C. Kryonidis ◽  
Kyriaki-Nefeli D Malamaki ◽  
Spyros I. Gkavanoudis ◽  
Konstantinos Oureilidis ◽  
Eleftherios O Kontis ◽  
...  
Keyword(s):  
Power Control ◽  
Reactive Power ◽  
Voltage Regulation ◽  
Reactive Power Control ◽  
Control Scheme
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