Stabilizing control strategy of complementary energy storage in renewable energy system

Ding, Ming; Wang, Bo; Zhong, Chen; Chen, Zinian; Luo, Yanhong; Zheng, Guoqiang

doi:10.1109/isgt-asia.2012.6303326

Cited by 13 publications

(6 citation statements)

References 4 publications

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“…This method has problems such as reducing battery life and increasing the overall cost of the system. The use of BESSs can partially alleviate the problems encountered when using RES; however, due to lower power density and charge and discharge rates, BESSs cannot fully meet the needs of DC microgrids [17,18]. For this reason, refs.…”

Section: Literature Reviewmentioning

confidence: 99%

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Direct current (DC) microgrid control in the presence of electrical vehicle/photovoltaic (EV/PV) systems and hybrid energy storage systems: A Case study of grounding and protection issue

Taheri

Shahhoseini

2023

IET Generation Trans & Dist

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In recent years, the interest in using DC microgrids has greatly increased due to their higher efficiency, less complexity, and greater transmission power compared to AC microgrids. To address challenges in DC microgrids in the presence of electrical vehicles (EVs) and the uncertainty of charging EVs, researchers have used PV/EV combination systems with energy storage systems (ESS). Controlling DC microgrids, including PV/EV/ESS, is crucial to cope with the existing challenges. On the other hand, the research on DC microgrids' protection systems is in the early stages, and there are still many challenges in this field. In addition, differences in control systems can pose different challenges for the protection system. The simulation results in this paper demonstrate that considering the best case (use of unipolar resistance grounding system) the DC bus voltage is improved by 22.3% (based on MAPE% data comparison). In the protection part, the empiricalmode decomposition (EMD) method and selecting a suitable intrinsic mode functions (IMF) have been used to protect the DC microgrid. The proposed protection method has been tested under pole-to-pole and pole-to-ground fault conditions. The results show that the proposed method is capable of detecting various fault types in the studied microgrid.

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Section: Literature Reviewmentioning

confidence: 99%

“…The threshold value in this paper is considered equal to k = 1.5. Accordingly, the fault detection condition is presented using (18).…”

Section: Figurementioning

confidence: 99%

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Direct current (DC) microgrid control in the presence of electrical vehicle/photovoltaic (EV/PV) systems and hybrid energy storage systems: A Case study of grounding and protection issue

Taheri

Shahhoseini

2023

IET Generation Trans & Dist

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“…In contrast, SCs exhibit high power density and can meet immediate low-energy demands. SCs were incorporated to mitigate power inconsistency in standalone photovoltaic systems (SPSs) 8,9 but were unable to meet long-term load demand owing to their low energy density. Ragone plots 10,11 reveal that fuel cells have the highest energy density, followed by BESSs, capacitors, and SCs.…”

Section: Introductionmentioning

confidence: 99%

Variable structure control for dynamic power‐sharing and voltage regulation of DC microgrid with a hybrid energy storage system

Singh¹,

Lather

2020

Int Trans Electr Energ Syst

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Summary This study proposed a novel method based on variable structure control for sharing power between battery and supercapacitor (SC) energy storage devices to address demand‐generation disparity and DC bus voltage regulations. It allows for moderate and fast compensations using hybrid energy storage devices, ranging from batteries to fast SCs controlled by battery current error signals. The proposed method using hybrid energy storage devices controlled by proportional integral (PI) and variable‐structured controllers enhances DC bus regulations with the reduced stress levels of batteries. Furthermore, redirecting unwaged battery currents toward SCs for fast compensation enhances the lifespan of batteries. The effectiveness of the method has been analyzed using simulations and compared with a conventional control method in terms of peak DC bus voltage deviations. The results were experimentally validated using a real‐time hardware‐in‐loop (HIL) simulator based on a field‐programmable gate array.

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“…A cost-effective method to address the need for an EES that features fast response and long-term energy support is to combine two or more energy storage technologies into a hybrid ESS. Among the various possible options, the battery-supercapacitor (SC) association is presently preferred for power supply due to feasibility and maturity reasons [19,20,21,22]. Batteries have a high energy density, but low power density and slow response speed.…”

Section: Introductionmentioning

confidence: 99%

A hierarchical predictive control for supercapacitor-retrofitted grid-connected hybrid renewable systems

2019

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Stabilizing control strategy of complementary energy storage in renewable energy system

Cited by 13 publications

References 4 publications

Direct current (DC) microgrid control in the presence of electrical vehicle/photovoltaic (EV/PV) systems and hybrid energy storage systems: A Case study of grounding and protection issue

Direct current (DC) microgrid control in the presence of electrical vehicle/photovoltaic (EV/PV) systems and hybrid energy storage systems: A Case study of grounding and protection issue

Variable structure control for dynamic power‐sharing and voltage regulation of DC microgrid with a hybrid energy storage system

A hierarchical predictive control for supercapacitor-retrofitted grid-connected hybrid renewable systems

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