An autonomous control scheme for DC micro-grid system

Wang, Panbao; Wang, Wei; Xu, Dianguo; Li, Guihua; Li, Ming

doi:10.1109/iecon.2013.6699358

Cited by 18 publications

(7 citation statements)

References 18 publications

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“…Up to now, different configurations and control strategies of DC microgrids have been proposed in the literature [5][6][7][8][9][10][11][12][13][14][15][16]. Overall, the power balancing strategies of DC microgrids can be classified into three categories: decentralized, centralized, and distributed control [17].…”

Section: Introductionmentioning

confidence: 99%

A Control Strategy of DC Building Microgrid Connected to the Neighborhood and AC Power Network

Huyen

Yahoui

et al. 2017

Buildings

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Abstract:Recently, the use of DC microgrid distribution system has become more attractive than traditional AC systems due to their energy efficiency and ability to easily integrate with renewable energy sources and batteries. This paper proposes a 500 V DC microgrid which consists of a 20 kWp photovoltaic panel, batteries, and DC loads. A hierarchical control strategy to ensure balance power of the DC microgrid and the maintenance of common DC bus voltage is presented. The capability of exchanging power energy of the microgrid with the power system of neighborhood buildings is also considered. Typical operation modes are simulated in the Matlab/simulink environment to confirm the good performance of the controllers and the efficiency of appropriately controlling the charge-discharge of the battery system. This research is expected to bring benefits to the design and operation of the system, such as reducing the capacity of batteries, increasing the self-supply of buildings, and decreasing the electricity demand from the AC grid.

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Section: Introductionmentioning

confidence: 99%

A Control Strategy of DC Building Microgrid Connected to the Neighborhood and AC Power Network

Huyen

Yahoui

et al. 2017

Buildings

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“…battery requires DC voltage [11], so in DC microgrid electrical vehicle can be charge easily. The main advantage of the DC system is that we can direct ly connect battery storage devices for backup power supply [6]. This energy storage will provide power in the absence of any DG o r in peak load period.…”

Section: A DC Microgrid Architecturementioning

confidence: 99%

“…Battery energy storage system prov ides backup power [7].All DC load can be direct ly connected with the DC bus. So, there is no requirement of A C-DC conversion, which increases overall efficiencyand reducescost of the power electronics converters [6]. However, DC-AC inverters are required for conventional AC loads connection.…”

Section: Introductionmentioning

confidence: 99%

Dc Microgrid Architecture and Control for Integration of Photovoltaic System

2015

IJAERD

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Abstract-Microgrid is one of the new conceptual systems for integrations of various distributed generations (DGs). Most of the microgrids adopt AC distribution systems, whileDC microgrids are proposed an d researched for better connection with DC output type sources such as photovoltaic (PV) system, fuel cell, and battery storage system.Moreover, if loads in the system are supplied with DC power, then conversion losses from sources to loads are eliminated compared with AC microgrid.DC microgrid is a novel power system using DC distribution that provides high quality power.The proposed DC microgrid architecture consists of a photovoltaic generation unit, electric vehicle battery charging, and DC load. Corresponding control strategy of each unit is presented.Maximum power point tracking (MPPT) technique is applied to photovoltaic (PV) system to extract maximum available power from it. Simulation results verify the effectiveness of the proposed DC microgrid.Keywords-microgrid, DC microgrid, distributed generator (DG), photovoltaic (PV) system, maximum power point tracking (MPPT).

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“…이 를 위해서는 다양한 분산 전원과의 연계가 필수적이지만 [7][8][9] 바이폴형의 저압 직류 배전망과의 연계를 위한 분산전원의 적절 한 설계, 연계 및 운용, 연계시 발생하는 영향 등에 대한 연구가 매우 부족한 실정이다 [1][2][10][11]. 특히 분산전원으로 많이 이 용되는 신재생 에너지원의 경우, MPPT(Maximum Power Point 그림 1 독립형 직류 마이크로그리드 구성도 …”

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Implementation of a Photovoltaic System Simulator for Interconnecting with Bipolar ±750V DC distribution Grid

Kim¹,

Kim²,

Cho³

et al. 2016

The Transactions of The Korean Institute of Electrical Engineer

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-The micro-grid designed as bipolar ±750V low-voltage DC power distribution system demonstrated by KEPRI, demands interconnection of a number of small decentralized power source including variable renewable generator. Therefore, variable researches for the influence of interconnection with the bipolar typed DC grid and these variable power sources are required for superior quality of power distribution. Renewable power generation simulators for the bipolar ±750V low-voltage DC power distribution system are necessary for such researches. In this paper, we carry out a research on the photovoltaic simulator that be actually able to interconnect with a bipolar ±750V low-voltage micro-grid. Simulator for this research is not only able to simulate photovoltaic generation according to weather informations and PV modules characteristics, but also contribute to stabilization of bipolar ±750V low-voltage of the system. Therefore, the simulator was designed to develop a system that can situationally respond to variable control algorithms such as the MPPT control, droop control, EMS power control, etc.

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An autonomous control scheme for DC micro-grid system

Cited by 18 publications

References 18 publications

A Control Strategy of DC Building Microgrid Connected to the Neighborhood and AC Power Network

A Control Strategy of DC Building Microgrid Connected to the Neighborhood and AC Power Network

Dc Microgrid Architecture and Control for Integration of Photovoltaic System

Implementation of a Photovoltaic System Simulator for Interconnecting with Bipolar ±750V DC distribution Grid

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