An OLTC-inverter coordinated voltage regulation method for distribution network with high penetration of PV generations

Abstract: Modern study about utilizing energy from renewable energy sources was stimulus due to emerging oil crisis in older days due to uncontrolled use of conventional energy sources. Renewable Power Generation from wind and solar energy has become a significant proportion for the overall power generation in the grid. High penetration of Renewable Power Generation (RPG’s) effectreliable operation of bulk power system due to fluctuation of frequency and voltage of the network. The main objectives of high penetration of Renewable Power Generations in distribution system are Regulation of voltage, Mitigating voltage fluctuations due to flickers and Frequency control. The design and control of voltage regulation system using smart loads (SL’s) under large penetration of renewable energy system in distribution level is to be studied with the help of FACT devices like Static Compensator (STATCOM) and It is one of the fast active devices with accurate voltage regulation capability and most importantly for the sensitive/critical loads. Electric spring (ES) is proposed as compelling technique for guideline of framework voltage under fluctuating RPG's with next to no guide of correspondence framework [1]. It is a converter-based framework with self-commutated switches in span design, which is associated with non-basic burdens in series to go about as savvy load. These Smart Loads are controlled to direct voltage across basic burdens and hence partaking popular side administration. Expanded entrance of RPG’s, basically factor speed wind energy transformation framework is having impact on voltage and power quality [1][2]. In this paper, A contextual analysis of impact of variable speed wind energy framework on voltage is completed and which is demonstrated with fluctuating breeze speed. Execution examination of keen burdens are to be contrasted and existing receptive power compensator burdens and Improvement in voltage profile on test feeder is directed on a 3 Bus system and 15 Bus system. Keywords: Renewable energy system (RES), Electric spring (ES), STATCOM, Voltage Flicker, Smart load

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Adaptive Active Grounding Fault Regulation Method Considering the Influence of Line Impedance in Distribution Network

10.1109/iecon48115.2021.9589789 ◽

2021 ◽

Author(s):

Yuchao Hou ◽

Qi Guo ◽

Chunming Tu ◽

Jiayuan Gao ◽

Fei Jiang ◽

...

Keyword(s):

Distribution Network ◽

Regulation Method

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A Control Strategy for Static Var Generator to Regulate Voltage in Distribution Network Under High Penetration of Photovoltaic

2018 2nd IEEE Conference on Energy Internet and Energy System Integration (EI2) ◽

10.1109/ei2.2018.8582472 ◽

2018 ◽

Author(s):

Zheng Chen ◽

Jianhua Yang ◽

Weizhou Wang ◽

Fuchao Liu

Keyword(s):

Control Strategy ◽

Distribution Network ◽

High Penetration ◽

Static Var Generator

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Adaptive Day-Ahead Prediction of Resilient Power Distribution Network Partitions

10.36227/techrxiv.13518611 ◽

2021 ◽

Author(s):

Chinmay Shah ◽

Richard Wies

Keyword(s):

Power Distribution ◽

Renewable Energy Sources ◽

Optimization Technique ◽

Distribution Network ◽

Distribution Networks ◽

Optimization Techniques ◽

Power Distribution Networks ◽

Power Distribution Network ◽

High Penetration ◽

Islanded Mode

The conventional power distribution network is being transformed drastically due to high penetration of renewable energy sources (RES) and energy storage. The optimal scheduling and dispatch is important to better harness the energy from intermittent RES. Traditional centralized optimization techniques limit the size of the problem and hence distributed techniques are adopted. The distributed optimization technique partitions the power distribution network into sub-networks which solves the local sub problem and exchanges information with the neighboring sub-networks for the global update. This paper presents an adaptive spectral graph partitioning algorithm based on vertex migration while maintaining computational load balanced for synchronization, active power balance and sub-network resiliency. The parameters that define the resiliency metrics of power distribution networks are discussed and leveraged for better operation of sub-networks in grid connected mode as well as islanded mode. The adaptive partition of the IEEE 123-bus network into resilient sub-networks is demonstrated in this paper.

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