Multi-inverters Pre-synchronization VSG Control Strategy for the Microgrid System

Zheng, Xuemei; Cao, Hannan; Li, Haoyu; Cui, Tongfei; Jiang, Yu; Zhang, Mengxiang

doi:10.1109/ifeec47410.2019.9015077

Cited by 5 publications

(2 citation statements)

References 7 publications

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“…To realize the phase difference zeroing, the existing research proposes an improved grid-connected method based on the universal dual-loop control, which merges the phase difference into the frequency control loop through the proportional–integral (PI) controller (Esfahani et al, 2019; Li et al, 2020; Wen et al, 2020). However, the above presynchronization method usually considers the grid-connected phase difference requirements while disregarding the short-term over-limit problem of islanded frequency caused by frequency fluctuation during presynchronization process (Khooban and Gheisarnejad, 2020; Liu et al, 2018; Zheng et al, 2020). Furthermore, the fixed PI parameters do not guarantee a rapid presynchronization speed due to the presence of various types of shore power boxes (Meng and Lu, 2021; Tang et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Presynchronization control for ship microgrid of merchant marine inverters based on VSG algorithm with MFAC

Yao,

Pei,

Chi

et al. 2024

Transactions of the Institute of Measurement and Control

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The paper studies a presynchronization control of grid connection for large merchant marine microgrid inverters. We present a virtual synchronous generator (VSG) algorithm with model-free adaptive control (MFAC) to optimize the stable grid connection of ship microgrid and shore-to-ship power. To solve poor precision of presynchronization control under nonideal ship microgrid condition, an MFAC controller and its presynchronization method are developed for grid connection of ship-distributed generation inverters. The proposed presynchronization control method effectively avoids a high transient overcurrent and achieves a seamless grid connection to different types of shore power. The simulation results verify the effectiveness of the proposed control method.

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Section: Introductionmentioning

confidence: 99%

Presynchronization control for ship microgrid of merchant marine inverters based on VSG algorithm with MFAC

Yao,

Pei,

Chi

et al. 2024

Transactions of the Institute of Measurement and Control

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show abstract

“…Beside large power systems, the use of FACTS devices is also investigated for microgrid systems [32][33][34][35][36][37]. In general, microgrids are small energy grids in terms of scale, power, voltage level, and contain a different generator unit that can provide an adequate energy supply to demand [36].…”

Section: Introductionmentioning

confidence: 99%

Optimal Allocation of Static Var Compensators in Electric Power Systems

et al. 2020

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In the current age, power systems contain many modern elements, one example being Flexible AC Transmission System (FACTS) devices, which play an important role in enhancing the static and dynamic performance of the systems. However, due to the high costs of FACTS devices, the location, type, and value of the reactive power of these devices must be optimized to maximize their resulting benefits. In this paper, the problem of optimal power flow for the minimization of power losses is considered for a power system with or without a FACTS controller, such as a Static Var Compensator (SVC) device The impact of location and SVC reactive power values on power system losses are considered in power systems with and without the presence of wind power. Furthermore, constant and variable load are considered. The mentioned investigation is realized on both IEEE 9 and IEEE 30 test bus systems. Optimal SVC allocation are performed in program GAMS using CONOPT solver. For constant load data, the obtained results of an optimal SVC allocation and the minimal value of power losses are compared with known solutions from the literature. It is shown that the CONOPT solver is useful for finding the optimal location of SVC devices in a power system with or without the presence of wind energy. The comparison of results obtained using CONOPT solver and four metaheuristic method for minimization of power system losses are also investigated and presented.

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Research on multi-VSG fast pre-synchronization grid connection with dual power loop

et al. 2020

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Multi-inverters Pre-synchronization VSG Control Strategy for the Microgrid System

Cited by 5 publications

References 7 publications

Presynchronization control for ship microgrid of merchant marine inverters based on VSG algorithm with MFAC

Presynchronization control for ship microgrid of merchant marine inverters based on VSG algorithm with MFAC

Optimal Allocation of Static Var Compensators in Electric Power Systems

Research on multi-VSG fast pre-synchronization grid connection with dual power loop

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