Coordination control of hybrid AC/DC microgrid

Liang, Beiming; Li, Kang; He, Jinghan; Zheng, Feng; Xia, Yunfeng; Zhang, Zhaoyun; Zhang, Zhi; Liu, Guozhong; Yang, Zaihui

doi:10.1049/joe.2018.8505

Cited by 40 publications

(26 citation statements)

References 15 publications

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“…Beiming Liang and et al improved the stability and reliability of an AC/DC MG by adopting the PQ control for the IPC in GC mode and applying the V/f control for the entire system in IS mode [54]. The literature [55] presented a coordinated control of PQ and V/f control strategy to improve the dynamic stability response of an islanded multi DGs AC MG and uses the mutation-based improved firefly algorithm (MIFA) technique to optimize the system.…”

Section: A5 V/f Controlmentioning

confidence: 99%

A Comprehensive Review on Power Converters Control and Control Strategies of AC/DC Microgrid

Ansari¹,

Chandel²,

Tariq

2021

IEEE Access

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Owing to the smart lifestyle, environmental consciousness, and dwindling fossil fuel supplies, there is a huge demand for clean and green energy. Microgrid (MG) is a crucial approach to renewable and clean energy. Because of the success of the AC utility grid and the growing demand for critical loads, it is very convenient to provide AC/DC MG that can easily satisfy both the alternating current (AC) MG and the direct current (DC) MG requirements. Due to uncertainty in load variations, main grid failures, intermittent power generations from renewable energy sources (RESs), the synchronization and interconnection of different power converters are the paramount issues in the control of AC/DC MG. This paper presents an overview-oriented state of the art in the recent advancement in control strategies of AC/DC MG and its associated power converters control. Based on recent research, this paper summarizes unobstructed views on different topologies, types of power converters, power converter controls, and control strategies of AC/DC MG. Finally, it identified some future challenges that need to be addressed in order to develop a sustainable and reliable control strategy for AC/DC MG. This paper will serve as a guide for researchers. INDEX TERMS Distributed generation, Microgrids, AC/DC Microgrid, Centralized control, Decentralized control I. INTRODUCTION MGs compromise different RESs, i.e., PV cells, windmills, energy-storing systems (ESS), diesel generator sets, and small hydropower plants, as discussed in the [1,2]. With the advancements in power semiconductor devices, the integration of RESs with leading utility or MG becomes so more accessible. Based on the adopted topology, there are three types of MGs, classified as DC MG, AC MG, and AC/DC MG or hybrid MG [3]. The DC MGs are preferred to supply critical loads like computers, operation theatres, and billing counters. Whereas the AC MGs are preferred in supplying all loads during off-grid or on-grid. The AC/DC MG possesses the characteristics of both DC MG and AC MG. Since begin, in these types of MGs, the power converters are connected in parallel with the MG bus-bar and belong to the parallel topology of MG. Recently a seriescascaded MG topology is being investigated. Inam Ullah Nutkani and et al. in [4] has presented a series-cascaded AC MG topology to integrate the non-dispatchable RESs to the MG and offered its advantages and disadvantages over the parallel topology. Fig.1 shows the different topological advances of MGs.

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Section: A5 V/f Controlmentioning

confidence: 99%

A Comprehensive Review on Power Converters Control and Control Strategies of AC/DC Microgrid

Ansari¹,

Chandel²,

Tariq

2021

IEEE Access

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“…The DG in the AC sub-microgrid can operate in MPPT mode. The energy storage device is in charging, discharging and standby state under unsaturated condition, and the excess energy in the microgrid system is feedback to the public grid [25]. Therefore, the main function of BIC is to ensure the power balance in the DC sub-microgrid, maintain the voltage stability of the DC bus, and realize the bidirectional flow of power.…”

Section: B Droop Control Strategy For Grid-connected Modementioning

confidence: 99%

An Improved Harmonic Suppression Control Strategy for the Hybrid Microgrid Bidirectional AC/DC Converter

Wang

2020

IEEE Access

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“…These include power management strategies developed specifically for AC microgrids [8][9][10][11] and DC microgrids [12][13][14][15]. Likewise, numerous power management strategies have been reported in the literature for the control of HMGs [16][17][18][19][20][21][22][23][24][25][26]. Among these, [16,17] are developed explicitly for the grid-connected mode, while others [18][19][20][21][22][23][24][25][26] are applicable for both grid-connected and islanded mode operation of HMG.…”

Section: Introductionmentioning

confidence: 99%

“…Likewise, numerous power management strategies have been reported in the literature for the control of HMGs [16][17][18][19][20][21][22][23][24][25][26]. Among these, [16,17] are developed explicitly for the grid-connected mode, while others [18][19][20][21][22][23][24][25][26] are applicable for both grid-connected and islanded mode operation of HMG. Even though the centralised PMS reported in [18] effectively regulates the DC and AC bus voltage and frequency of the HMG by quickly balancing the power flow, it requires a high-speed communication link between the converters to control the operation of the HMG.…”

Section: Introductionmentioning

confidence: 99%

Comprehensive power management scheme for the intelligent operation of photovoltaic‐battery based hybrid microgrid system

Melath

Rangarajan

Agarwal

2020

IET Renewable Power Generation

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This study proposes a comprehensive power management scheme (CPMS) for the economical and smart operation of a photovoltaic (PV) battery based Hybrid Microgrid (HMG) system. The solar-PV, DC-loads and battery storage are interfaced to DC-bus of the HMG. The battery is integrated into the DC-bus using a bidirectional energy storage converter (BESC). The voltage and frequency of AC-bus are regulated by utility grid and bidirectional interlinking converter (BIC) during grid-connected and islanded modes of operation, respectively. The proposed CPMS obviates high-speed communication link between converters for maintaining the system stability during power disturbances. Therefore, the vulnerability to collapse due to communication link failure is eliminated, thereby enhancing system reliability. The operational performance of HMG is improved with the proposed CPMS by providing additional features (minimisation of operating cost of the HMG, enhancement in voltage regulation of the DC-bus etc.) using low-speed communication network. The proposed CPMS can also be extended to a larger HMG system by utilising the full bandwidth of the communication network. Further, the proposed CPMS enables HMG to seamlessly switch from grid-connected to islanded mode and vice-versa. Experimental results validating the efficacy of the proposed CPMS are presented.

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Coordination control of hybrid AC/DC microgrid

Cited by 40 publications

References 15 publications

A Comprehensive Review on Power Converters Control and Control Strategies of AC/DC Microgrid

A Comprehensive Review on Power Converters Control and Control Strategies of AC/DC Microgrid

An Improved Harmonic Suppression Control Strategy for the Hybrid Microgrid Bidirectional AC/DC Converter

Comprehensive power management scheme for the intelligent operation of photovoltaic‐battery based hybrid microgrid system

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