NDLI: Non-local harmonic current and reactive power compensation for a multi-microgrid system using a series

Content Provider	IET Digital Library
Author	John, Thomas Patsios, Charalampos Greenwood, David
Abstract	In this study, a new non-local active compensation method is developed for a multi-microgrid (MMG) system. The current industry practice is to utilise local harmonic current and reactive power compensation methods, however, local compensation methods are not practical for large MMG system with widely dispersed non-linear loads, because each non-linear load would require its own compensator. To overcome this problem, a novel compensating technology called a series–shunt network device (SSND) is installed between a pair of microgrids in the proposed MMG system. The SSND reduces the number of local compensators required while also performing additional functions in comparison with conventional devices. For effective control of the SSND, an improved model predictive control (MPC) algorithm, which gives better tracking accuracy and faster set-point change than that of a conventional proportional–integral controller, is also presented. Analysis and simulations verify the capability of SSND in performing both local and non-local active compensation of harmonic current and reactive power in the proposed MMG system under various test scenarios. Simulation results show that the MPC-controlled SSND can achieve effective compensation, thereby resulting in a very low current total harmonic distortion value of 2.4% and a unity power factor at the distribution grid side.
Starting Page	5655
Ending Page	5666
Page Count	12
ISSN	17518687
Volume Number	14
e-ISSN	17518695
Issue Number	Issue 23, Dec (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/14/23
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2019.1675
Journal	IET Generation, Transmission & Distribution
Publisher Date	2020-09-16
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Compensating Technology Compensation Control of Electric Power System Current Industry Practice Distributed Power Generation Distribution Grid Side Harmonic Distortion Harmonics Local Harmonic Current Power Compensation MMG System Model Predictive Control Algorithm MPC-controlled SSND Multimicrogrid System Nonlinear Load Nonlocal Active Compensation Method Nonlocal Harmonic Current Optimal Control PI Control Power And Energy Control Power Distribution Control Power Factor Power Generation Control Power Supply Quality Power System Control Power System Harmonics Predictive Control Proportional-integral Controller Reactive Power Compensation Reactive Power Control Series–shunt Network Device SSND Control Total Harmonic Distortion Unity Power Factor
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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