Microgrid Stability Controller Based on Adaptive Robust Total SMC

This paper presents a microgrid stability controller (MSC) in order to provide existing distributed generation units (DGs) the additional functionality of working in islanding mode without changing their control strategies in grid-connected mode and to enhance the stability of the microgrid. Microg...

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Main Authors: Xiaoling Su, Minxiao Han, Josep M. Guerrero, Hai Sun
Format: Article
Language:English
Published: MDPI AG 2015-03-01
Series:Energies
Subjects:
Online Access:http://www.mdpi.com/1996-1073/8/3/1784
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author Xiaoling Su
Minxiao Han
Josep M. Guerrero
Hai Sun
author_facet Xiaoling Su
Minxiao Han
Josep M. Guerrero
Hai Sun
author_sort Xiaoling Su
collection DOAJ
description This paper presents a microgrid stability controller (MSC) in order to provide existing distributed generation units (DGs) the additional functionality of working in islanding mode without changing their control strategies in grid-connected mode and to enhance the stability of the microgrid. Microgrid operating characteristics and mathematical models of the MSC indicate that the system is inherently nonlinear and time-variable. Therefore, this paper proposes an adaptive robust total sliding-mode control (ARTSMC) system for the MSC. It is proved that the ARTSMC system is insensitive to parametric uncertainties and external disturbances. The MSC provides fast dynamic response and robustness to the microgrid. When the system is operating in grid-connected mode, it is able to improve the controllability of the exchanged power between the microgrid and the utility grid, while smoothing the DGs’ output power. When the microgrid is operating in islanded mode, it provides voltage and frequency support, while guaranteeing seamless transition between the two operation modes. Simulation and experimental results show the effectiveness of the proposed approach.
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spelling doaj.art-8b9a3b0446a0480bbe0d3d0a2aa2a2272022-12-22T02:21:35ZengMDPI AGEnergies1996-10732015-03-01831784180110.3390/en8031784en8031784Microgrid Stability Controller Based on Adaptive Robust Total SMCXiaoling Su0Minxiao Han1Josep M. Guerrero2Hai Sun3State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, ChinaState Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, ChinaInstitute of Energy Technology, Pontoppidanstraede 101, Aalborg East 9220, DenmarkState Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, ChinaThis paper presents a microgrid stability controller (MSC) in order to provide existing distributed generation units (DGs) the additional functionality of working in islanding mode without changing their control strategies in grid-connected mode and to enhance the stability of the microgrid. Microgrid operating characteristics and mathematical models of the MSC indicate that the system is inherently nonlinear and time-variable. Therefore, this paper proposes an adaptive robust total sliding-mode control (ARTSMC) system for the MSC. It is proved that the ARTSMC system is insensitive to parametric uncertainties and external disturbances. The MSC provides fast dynamic response and robustness to the microgrid. When the system is operating in grid-connected mode, it is able to improve the controllability of the exchanged power between the microgrid and the utility grid, while smoothing the DGs’ output power. When the microgrid is operating in islanded mode, it provides voltage and frequency support, while guaranteeing seamless transition between the two operation modes. Simulation and experimental results show the effectiveness of the proposed approach.http://www.mdpi.com/1996-1073/8/3/1784distributed generation (DG)microgridmicrogrid stability controller (MSC)total sliding-mode control
spellingShingle Xiaoling Su
Minxiao Han
Josep M. Guerrero
Hai Sun
Microgrid Stability Controller Based on Adaptive Robust Total SMC
Energies
distributed generation (DG)
microgrid
microgrid stability controller (MSC)
total sliding-mode control
title Microgrid Stability Controller Based on Adaptive Robust Total SMC
title_full Microgrid Stability Controller Based on Adaptive Robust Total SMC
title_fullStr Microgrid Stability Controller Based on Adaptive Robust Total SMC
title_full_unstemmed Microgrid Stability Controller Based on Adaptive Robust Total SMC
title_short Microgrid Stability Controller Based on Adaptive Robust Total SMC
title_sort microgrid stability controller based on adaptive robust total smc
topic distributed generation (DG)
microgrid
microgrid stability controller (MSC)
total sliding-mode control
url http://www.mdpi.com/1996-1073/8/3/1784
work_keys_str_mv AT xiaolingsu microgridstabilitycontrollerbasedonadaptiverobusttotalsmc
AT minxiaohan microgridstabilitycontrollerbasedonadaptiverobusttotalsmc
AT josepmguerrero microgridstabilitycontrollerbasedonadaptiverobusttotalsmc
AT haisun microgridstabilitycontrollerbasedonadaptiverobusttotalsmc