Research on pre-judgment coordinated control strategy of stand-alone DC microgrid

Lijuan Di; Guangchen Liu; Jianwei Zhang; Guizhen Tian; Shengtie Wang

doi:10.1109/ACPEE48638.2020.9136571

Research on pre-judgment coordinated control strategy of stand-alone DC microgrid

Lijuan Di
, Guangchen Liu
, Jianwei Zhang
, Guizhen Tian
, Shengtie Wang

Research output: Chapter in Book/Conference proceeding › Conference contribution › peer-review

Abstract

Based on the analysis of DC microgrid structure and system operation modes, a pre-judgment coordinated control strategy is proposed for the stand-alone PV/battery DC microgrid in this paper. By considering the change trend of light intensity and state of charge (SOC) of lithium-ion battery, the five operation modes of the system are analyzed, and the control strategies of each unit are designed. According to the energy balance relationship, the photovoltaic system can work in maximum power tracking (MPPT) control and load power tracking control (LPTC) mode. The lithium-ion battery can guarantee the stability of DC bus voltage in microgrid by charging and discharging, and change the working range of SOC under certain conditions, so as to improve the power utilization rate. The load switching control is to ensure the power supply of key loads The stable operation of microgrid can be realized by avoiding frequent switching of load at switching point.The model of PV/battery DC microgrid is built and simulation work is carried out in real-time digital simulator (RTDS). Through the simulation results under different working conditions, the correctness and effectiveness of the proposed pre-judgment coordinated control strategy are verified.

Original language	English
Title of host publication	Proceedings - 2020 5th Asia Conference on Power and Electrical Engineering, ACPEE 2020
Editors	Tek-Tjing Lie, Youbo Liu
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	638-644
Number of pages	7
ISBN (Electronic)	9781728152813
DOIs	https://doi.org/10.1109/ACPEE48638.2020.9136571
Publication status	Published - Jun 2020
Externally published	Yes
Event	5th Asia Conference on Power and Electrical Engineering, ACPEE 2020 - Chengdu, China Duration: 4 Jun 2020 → 7 Jun 2020

Publication series

Name	Proceedings - 2020 5th Asia Conference on Power and Electrical Engineering, ACPEE 2020

Conference

Conference	5th Asia Conference on Power and Electrical Engineering, ACPEE 2020
Country/Territory	China
City	Chengdu
Period	4/06/20 → 7/06/20

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Free Keywords

Coordinated Control Strategy
PV/battery Microgrid
Stand-alone
State of Charge (SOC)

ASJC Scopus subject areas

Artificial Intelligence
Computer Networks and Communications
Energy Engineering and Power Technology
Electrical and Electronic Engineering
Safety, Risk, Reliability and Quality
Control and Optimization

Access to Document

10.1109/ACPEE48638.2020.9136571

Cite this

Di, L., Liu, G., Zhang, J., Tian, G., & Wang, S. (2020). Research on pre-judgment coordinated control strategy of stand-alone DC microgrid. In T.-T. Lie, & Y. Liu (Eds.), Proceedings - 2020 5th Asia Conference on Power and Electrical Engineering, ACPEE 2020 (pp. 638-644). Article 9136571 (Proceedings - 2020 5th Asia Conference on Power and Electrical Engineering, ACPEE 2020). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ACPEE48638.2020.9136571

Di, Lijuan ; Liu, Guangchen ; Zhang, Jianwei et al. / Research on pre-judgment coordinated control strategy of stand-alone DC microgrid. Proceedings - 2020 5th Asia Conference on Power and Electrical Engineering, ACPEE 2020. editor / Tek-Tjing Lie ; Youbo Liu. Institute of Electrical and Electronics Engineers Inc., 2020. pp. 638-644 (Proceedings - 2020 5th Asia Conference on Power and Electrical Engineering, ACPEE 2020).

@inproceedings{9dfd48f7387147e4b4451749f750f240,

title = "Research on pre-judgment coordinated control strategy of stand-alone DC microgrid",

abstract = "Based on the analysis of DC microgrid structure and system operation modes, a pre-judgment coordinated control strategy is proposed for the stand-alone PV/battery DC microgrid in this paper. By considering the change trend of light intensity and state of charge (SOC) of lithium-ion battery, the five operation modes of the system are analyzed, and the control strategies of each unit are designed. According to the energy balance relationship, the photovoltaic system can work in maximum power tracking (MPPT) control and load power tracking control (LPTC) mode. The lithium-ion battery can guarantee the stability of DC bus voltage in microgrid by charging and discharging, and change the working range of SOC under certain conditions, so as to improve the power utilization rate. The load switching control is to ensure the power supply of key loads The stable operation of microgrid can be realized by avoiding frequent switching of load at switching point.The model of PV/battery DC microgrid is built and simulation work is carried out in real-time digital simulator (RTDS). Through the simulation results under different working conditions, the correctness and effectiveness of the proposed pre-judgment coordinated control strategy are verified.",

keywords = "Coordinated Control Strategy, PV/battery Microgrid, Stand-alone, State of Charge (SOC)",

author = "Lijuan Di and Guangchen Liu and Jianwei Zhang and Guizhen Tian and Shengtie Wang",

note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 5th Asia Conference on Power and Electrical Engineering, ACPEE 2020 ; Conference date: 04-06-2020 Through 07-06-2020",

year = "2020",

month = jun,

doi = "10.1109/ACPEE48638.2020.9136571",

language = "English",

series = "Proceedings - 2020 5th Asia Conference on Power and Electrical Engineering, ACPEE 2020",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

pages = "638--644",

editor = "Tek-Tjing Lie and Youbo Liu",

booktitle = "Proceedings - 2020 5th Asia Conference on Power and Electrical Engineering, ACPEE 2020",

address = "United States",

}

Di, L, Liu, G, Zhang, J, Tian, G & Wang, S 2020, Research on pre-judgment coordinated control strategy of stand-alone DC microgrid. in T-T Lie & Y Liu (eds), Proceedings - 2020 5th Asia Conference on Power and Electrical Engineering, ACPEE 2020., 9136571, Proceedings - 2020 5th Asia Conference on Power and Electrical Engineering, ACPEE 2020, Institute of Electrical and Electronics Engineers Inc., pp. 638-644, 5th Asia Conference on Power and Electrical Engineering, ACPEE 2020, Chengdu, China, 4/06/20. https://doi.org/10.1109/ACPEE48638.2020.9136571

Research on pre-judgment coordinated control strategy of stand-alone DC microgrid. / Di, Lijuan; Liu, Guangchen; Zhang, Jianwei et al.
Proceedings - 2020 5th Asia Conference on Power and Electrical Engineering, ACPEE 2020. ed. / Tek-Tjing Lie; Youbo Liu. Institute of Electrical and Electronics Engineers Inc., 2020. p. 638-644 9136571 (Proceedings - 2020 5th Asia Conference on Power and Electrical Engineering, ACPEE 2020).

Research output: Chapter in Book/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Research on pre-judgment coordinated control strategy of stand-alone DC microgrid

AU - Di, Lijuan

AU - Liu, Guangchen

AU - Zhang, Jianwei

AU - Tian, Guizhen

AU - Wang, Shengtie

PY - 2020/6

Y1 - 2020/6

N2 - Based on the analysis of DC microgrid structure and system operation modes, a pre-judgment coordinated control strategy is proposed for the stand-alone PV/battery DC microgrid in this paper. By considering the change trend of light intensity and state of charge (SOC) of lithium-ion battery, the five operation modes of the system are analyzed, and the control strategies of each unit are designed. According to the energy balance relationship, the photovoltaic system can work in maximum power tracking (MPPT) control and load power tracking control (LPTC) mode. The lithium-ion battery can guarantee the stability of DC bus voltage in microgrid by charging and discharging, and change the working range of SOC under certain conditions, so as to improve the power utilization rate. The load switching control is to ensure the power supply of key loads The stable operation of microgrid can be realized by avoiding frequent switching of load at switching point.The model of PV/battery DC microgrid is built and simulation work is carried out in real-time digital simulator (RTDS). Through the simulation results under different working conditions, the correctness and effectiveness of the proposed pre-judgment coordinated control strategy are verified.

AB - Based on the analysis of DC microgrid structure and system operation modes, a pre-judgment coordinated control strategy is proposed for the stand-alone PV/battery DC microgrid in this paper. By considering the change trend of light intensity and state of charge (SOC) of lithium-ion battery, the five operation modes of the system are analyzed, and the control strategies of each unit are designed. According to the energy balance relationship, the photovoltaic system can work in maximum power tracking (MPPT) control and load power tracking control (LPTC) mode. The lithium-ion battery can guarantee the stability of DC bus voltage in microgrid by charging and discharging, and change the working range of SOC under certain conditions, so as to improve the power utilization rate. The load switching control is to ensure the power supply of key loads The stable operation of microgrid can be realized by avoiding frequent switching of load at switching point.The model of PV/battery DC microgrid is built and simulation work is carried out in real-time digital simulator (RTDS). Through the simulation results under different working conditions, the correctness and effectiveness of the proposed pre-judgment coordinated control strategy are verified.

KW - Coordinated Control Strategy

KW - PV/battery Microgrid

KW - Stand-alone

KW - State of Charge (SOC)

UR - https://www.scopus.com/pages/publications/85088572526

U2 - 10.1109/ACPEE48638.2020.9136571

DO - 10.1109/ACPEE48638.2020.9136571

M3 - Conference contribution

AN - SCOPUS:85088572526

T3 - Proceedings - 2020 5th Asia Conference on Power and Electrical Engineering, ACPEE 2020

SP - 638

EP - 644

BT - Proceedings - 2020 5th Asia Conference on Power and Electrical Engineering, ACPEE 2020

A2 - Lie, Tek-Tjing

A2 - Liu, Youbo

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 5th Asia Conference on Power and Electrical Engineering, ACPEE 2020

Y2 - 4 June 2020 through 7 June 2020

ER -

Di L, Liu G, Zhang J, Tian G, Wang S. Research on pre-judgment coordinated control strategy of stand-alone DC microgrid. In Lie TT, Liu Y, editors, Proceedings - 2020 5th Asia Conference on Power and Electrical Engineering, ACPEE 2020. Institute of Electrical and Electronics Engineers Inc. 2020. p. 638-644. 9136571. (Proceedings - 2020 5th Asia Conference on Power and Electrical Engineering, ACPEE 2020). doi: 10.1109/ACPEE48638.2020.9136571

Research on pre-judgment coordinated control strategy of stand-alone DC microgrid

Abstract

Publication series

Conference

UN SDGs

Free Keywords

ASJC Scopus subject areas

Access to Document

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