Novel Optimal Load Control for Power System Frequency and Voltage Regulation

The sudden generation-consumption imbalance is becoming more frequent in modern power systems, causing voltage and frequency stability issues. One potential solution is load participation in primary control. We formulate a novel optimal load control (NOLC) problem that aims to minimize the disutilit...

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Main Authors: Yaxin Wang, Donglian Qi, Jianliang Zhang, Jingcheng Mei
Format: Article
Language:English
Published: IEEE 2023-01-01
Series:Journal of Modern Power Systems and Clean Energy
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10082860/
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author Yaxin Wang
Donglian Qi
Jianliang Zhang
Jingcheng Mei
author_facet Yaxin Wang
Donglian Qi
Jianliang Zhang
Jingcheng Mei
author_sort Yaxin Wang
collection DOAJ
description The sudden generation-consumption imbalance is becoming more frequent in modern power systems, causing voltage and frequency stability issues. One potential solution is load participation in primary control. We formulate a novel optimal load control (NOLC) problem that aims to minimize the disutility of controllable loads in providing primary regulation. In this paper, we show that the network dynamics, coupled with well-defined load control (obtained via optimality condition), can be seen as an optimization algorithm to solve the dual problem of NOLC. Unlike most existing load control frameworks that only consider frequency response, our load-side primary control focuses on frequency, voltage, and aggregate cost. Simulation results imply that the NOLC approach can ensure better frequency and voltage regulations. Moreover, the coordination between NOLC and other devices enabled in the system, the NOLC performance against the total size of controllable loads, and the NOLC effectiveness in a multi-machine power system are also verified in MATLAB/Simulink.
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spelling doaj.art-a9a450ff606540e583a9811b4f523dbf2023-11-23T00:00:50ZengIEEEJournal of Modern Power Systems and Clean Energy2196-54202023-01-011161746175510.35833/MPCE.2022.00050610082860Novel Optimal Load Control for Power System Frequency and Voltage RegulationYaxin Wang0Donglian Qi1Jianliang Zhang2Jingcheng Mei3Zhejiang University,Electrical Engineering Department,Hangzhou,ChinaZhejiang University,Electrical Engineering Department,Hangzhou,ChinaZhejiang University,Electrical Engineering Department,Hangzhou,ChinaZhejiang University,Electrical Engineering Department,Hangzhou,ChinaThe sudden generation-consumption imbalance is becoming more frequent in modern power systems, causing voltage and frequency stability issues. One potential solution is load participation in primary control. We formulate a novel optimal load control (NOLC) problem that aims to minimize the disutility of controllable loads in providing primary regulation. In this paper, we show that the network dynamics, coupled with well-defined load control (obtained via optimality condition), can be seen as an optimization algorithm to solve the dual problem of NOLC. Unlike most existing load control frameworks that only consider frequency response, our load-side primary control focuses on frequency, voltage, and aggregate cost. Simulation results imply that the NOLC approach can ensure better frequency and voltage regulations. Moreover, the coordination between NOLC and other devices enabled in the system, the NOLC performance against the total size of controllable loads, and the NOLC effectiveness in a multi-machine power system are also verified in MATLAB/Simulink.https://ieeexplore.ieee.org/document/10082860/Novel optimal load control (NOLC)primary regulationfrequency responsevoltage stabilitysmart load
spellingShingle Yaxin Wang
Donglian Qi
Jianliang Zhang
Jingcheng Mei
Novel Optimal Load Control for Power System Frequency and Voltage Regulation
Journal of Modern Power Systems and Clean Energy
Novel optimal load control (NOLC)
primary regulation
frequency response
voltage stability
smart load
title Novel Optimal Load Control for Power System Frequency and Voltage Regulation
title_full Novel Optimal Load Control for Power System Frequency and Voltage Regulation
title_fullStr Novel Optimal Load Control for Power System Frequency and Voltage Regulation
title_full_unstemmed Novel Optimal Load Control for Power System Frequency and Voltage Regulation
title_short Novel Optimal Load Control for Power System Frequency and Voltage Regulation
title_sort novel optimal load control for power system frequency and voltage regulation
topic Novel optimal load control (NOLC)
primary regulation
frequency response
voltage stability
smart load
url https://ieeexplore.ieee.org/document/10082860/
work_keys_str_mv AT yaxinwang noveloptimalloadcontrolforpowersystemfrequencyandvoltageregulation
AT donglianqi noveloptimalloadcontrolforpowersystemfrequencyandvoltageregulation
AT jianliangzhang noveloptimalloadcontrolforpowersystemfrequencyandvoltageregulation
AT jingchengmei noveloptimalloadcontrolforpowersystemfrequencyandvoltageregulation