scholarly journals Distributed Newton‐based voltage control method for high‐penetration PV generation cluster in active distribution networks

2020 ◽  
Vol 14 (11) ◽  
pp. 1904-1911 ◽  
Author(s):  
Zhongguan Wang ◽  
Leijiao Ge ◽  
Jinjin Ding ◽  
Weide Gu
Keyword(s):  
Control Method ◽  
Voltage Control ◽  
Distribution Networks ◽  
High Penetration ◽  
Pv Generation ◽  
Active Distribution Networks

scholarly journals Voltage regulation in LV distribution networks with PV generation and battery storage

2021 ◽  
Vol 72 (6) ◽  
pp. 356-365
Author(s):  
Jordan Radosavljević
Keyword(s):  
Low Voltage ◽  
Voltage Control ◽  
Distribution Networks ◽  
Voltage Regulation ◽  
Local Load ◽  
Battery Storage ◽  
Second Stage ◽  
High Penetration ◽  
Optimal Coordination ◽  
Pv Generation

Abstract High penetration of photovoltaic (PV) generation in low voltage (LV) distribution networks can leads some power quality problems. One of the most important issues in this regard is the impermissible voltage deviation in periods with a large imbalance between PV generation and local load consumption. Accordingly, many authors deal with this issue. This work investigates voltage regulation for LV distribution networks equipped with the hybrid distribution transformer (HDT), and with high penetration of PV units. A two-stage algorithm for voltage regulation is proposed. In the first stage, a local (distributed) voltage control is performed by minimizing the injection power of the PV-battery storage system (BS)-local load entity at the common bus. In the second stage, optimal coordination is performed between the HDT and the local voltage control. In fact, the second stage is an optimal voltage regulation problem. The aim is to minimize the voltage deviations at load buses by optimal settings the voltage support of the HDT. A PSO algorithm is used to solve this optimization problem. the proposed approach is implemented in MATLAB software and evaluated on the IEEE european LV test feeder.

scholarly journals Decentralized Voltage Control Strategy of Soft Open Points in Active Distribution Networks Based on Sensitivity Analysis

Electronics ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 295 ◽  
Author(s):  
Jinli Zhao ◽  
Mingkun Yao ◽  
Hao Yu ◽  
Guanyu Song ◽  
Haoran Ji ◽  
...  
Keyword(s):  
Large Scale ◽  
Control Method ◽  
Voltage Control ◽  
Distribution Networks ◽  
Power Electronic ◽  
Voltage Control Strategy ◽  
Distributed Generators ◽  
Alternating Direction ◽  
Active Distribution Networks ◽  
Open Point

With the increasing penetration of distributed generators, various operational problems, especially severe voltage violation, threaten the secure operation of active distribution networks. To effectively cope with the voltage fluctuations, novel controllable power electronic equipment represented by soft open points has been used in active distribution networks. Meanwhile, the communication has dramatically increased due to the rise of the variety and number of devices within the network. This paper proposes a decentralized voltage control method of soft open points based on voltage-to-power sensitivity. The method reduces the burden of communication, storage, and calculation effectively in a decentralized manner and fulfills the rapid requirements of large-scale active distribution networks. First, the network is divided into several sub-areas; each is under the control of one soft open point at most. The initial strategies of soft open points are adjusted by local voltage-to-power sensitivity and the voltage information within the sub-areas. If some nodal voltages still exceed the expected range after the sub-area autonomy, the operation strategies of soft open points are further improved by inter-area coordination with the alternating direction method of multipliers algorithm. The effectiveness of the proposed decentralized control method is verified on the IEEE 33-node system.

A Double-Layered Fully Distributed Voltage Control Method for Active Distribution Networks

2019 ◽  
Vol 10 (2) ◽  
pp. 1465-1476 ◽  
Author(s):  
Iasonas N. Kouveliotis-Lysikatos ◽  
Despina I. Koukoula ◽  
Nikos D. Hatziargyriou
Keyword(s):  
Control Method ◽  
Voltage Control ◽  
Distribution Networks ◽  
Active Distribution Networks

scholarly journals A REVIEW OF VOLTAGE CONTROL STRATEGIES FOR LOW-VOLTAGE NETWORKS WITH HIGH PENETRATION OF DISTRIBUTED GENERATION

2020 ◽  
Vol 10 (3) ◽  
pp. 60-65
Author(s):  
Klara Janiga
Keyword(s):  
Control Method ◽  
Low Voltage ◽  
Control Strategies ◽  
Voltage Control ◽  
Distribution Networks ◽  
High Penetration ◽  
Starting Point ◽  
New Energy ◽  
Local Methods ◽  
Network Operation

Deterioration of voltage conditions is one of the frequent consequences of connecting an increasing number of photovoltaic sources to the low-voltage (LV) power grid. Under adverse conditions, i.e. low energy consumption and high insolation, microgeneration can cause voltage surges that violate acceptable limits. Research shows that the increase in voltage is the main limitation for connecting new energy microsources to the LV network and forces the reconstruction of the network. An alternative to costly modernizations can be the implementation of appropriate strategies for controlling network operation to maintain the voltage at the required level. The article presents an overview of the methods and concepts of voltage control in a low-voltage network developed so far to mitigate the undesirable phenomenon of voltage boosting. The focus was mainly on local methods—not requiring communication infrastructure—as best suited to the conditions of Polish distribution networks. Gathering the results of many tests and simulations carried out in different conditions and on different models allowed for the formulation of general conclusions and can be a starting point for further research on a control method that can be widely used in the national power system.

scholarly journals Double-layer stochastic model predictive voltage control in active distribution networks with high penetration of renewables

2021 ◽  
Vol 302 ◽  
pp. 117530
Author(s):  
Zhengfa Zhang ◽  
Filipe Faria da Silva ◽  
Yifei Guo ◽  
Claus Leth Bak ◽  
Zhe Chen
Keyword(s):  
Stochastic Model ◽  
Double Layer ◽  
Voltage Control ◽  
Distribution Networks ◽  
High Penetration ◽  
Active Distribution Networks

scholarly journals A Distributed Voltage Control Strategy for Multi-Microgrid Active Distribution Networks Considering Economy and Response Speed

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 31259-31268 ◽  
Author(s):  
Xiaobo Dou ◽  
Pei Xu ◽  
Qinran Hu ◽  
Wanxing Sheng ◽  
Xiangjun Quan ◽  
...  
Keyword(s):  
Control Strategy ◽  
Voltage Control ◽  
Response Speed ◽  
Distribution Networks ◽  
Voltage Control Strategy ◽  
Active Distribution Networks
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