Modified virtual synchronous generator based‐primary frequency regulation for renewable generation integrated into power system

Hu, Zhengyang; Gao, Bingtuan; Chen, Ning; Qu, Linan; Peng, Chenyu

doi:10.1049/iet-gtd.2019.1271

Cited by 7 publications

(5 citation statements)

References 29 publications

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“…Hu et al built a new M‐VSG controller and added a flexible PFR strategy to ensure the stability of frequency after grid connection of renewable energy power generation. The results confirmed the superiority of M‐VSG in flexible fault locations 14 . Hua et al proposed a control strategy combining VSG with a real‐time digital simulator to increase the stability of the microgrid system.…”

Section: Related Workmentioning

confidence: 55%

“…The results confirmed the superiority of M-VSG in flexible fault locations. 14 Hua et al proposed a control strategy combining VSG with a real-time digital simulator to increase the stability of the microgrid system. They ultimately confirmed the efficacy of this strategy.…”

Section: Related Workmentioning

confidence: 99%

“…An adaptive virtual moment of the inertia control scheme is created by using the analysis of the impact of O on the model's output characteristics to suppress the fluctuation. The calculation is shown in Formula (14).…”

Section: Design Of Adaptive Vsg Control Strategy Based On Flc Optimiz...mentioning

confidence: 99%

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Modeling and adaptive control strategy of hybrid microgrid based on virtual synchronous generator

2023

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Aiming at large system operation fluctuations caused by the technical control of virtual synchronous generators, this article studies the introduction of interface converter control power, builds a virtual synchronous generator (VSG)‐based hybrid microgrid model and adaptive control strategy. Finally it optimizes it with fuzzy logic to obtain an fuzzy logic controller (FLC) based adaptive VSG control strategy. The experimental results show that under the FLC‐based adaptive VSG control strategy, in the reverse current mode, the system regression time is 0.37 s, and the DC bus voltage is 6.5 V; In the rectification mode, the system regression time is 0.49 s, and the DC bus voltage is 2.1 V. The results obtained are faster than the traditional VSG control strategy, and the DC bus voltage is 42.48%–68.66% lower. In summary, the suggested control approach is effective and reliable under the two operation modes, which can make the system operate safely and stably.

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Section: Related Workmentioning

confidence: 55%

Section: Related Workmentioning

confidence: 99%

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Modeling and adaptive control strategy of hybrid microgrid based on virtual synchronous generator

2023

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“…The grid-connected control of the converter in the stored energy adopts the active support control based on the thirdorder model of the synchronous machine. The traditional second-order equation of rotor motion is combined with the transient potential equation, and formula ( 4) is constructed to simulate the frequency and voltage regulation process of the stored energy, so as to improve the grid-connected stability of the energy storage converter [8] .…”

Section: Third Order Model Of Synchronous Generatormentioning

confidence: 99%

Study on frequency modulation control strategy of electrochemical stored energy considering the state of battery charge

Guo,

Zhang,

Han

et al. 2024

Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023)

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Firstly, the overall modeling process of stored energy is described. Secondly, in order to better simulate the change of power frequency response characteristics of stored energy with state of charge (SOC), an adaptive control strategy is proposed to improve the frequency modulation response characteristics of stored energy in a high proportion of new ensergy grid. Finally, the effectiveness of the control strategy is verified in the simulation software, aiming at the operation result of the energy-type stored energy under different charging conditions after the disturbance occurs.

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“…With the global large‐scale application of centralized wind power grid‐connected, the decline of inertia level, frequency regulation ability, and anti‐disturbance ability have highly affected the safety, stable operation, and power quality of the power system [1]. The application of VSG technology is to simulate the inertia, damping, and droop external characteristics of traditional synchronous generators by controlling grid‐connected inverters [2].…”

Section: Introductionmentioning

confidence: 99%

Variable weight coefficient MPC control strategy for qZSI‐VSG wind power grid‐connected system

Zhang

Liu

Luo³

et al. 2023

IET Renewable Power Gen

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Quasi‐Z source inverters (qZSI) can overcome the disadvantages of conventional wind power systems, because of achieving the balanced DC‐link voltage by using its boost ability. The majority of currently used control methods for conventional inverters are susceptible to parameter changes, and the qZSI are controlled by finite switching sequence model predictive control (FSS‐MPC). In this paper, a Variable weight coefficient Model Predictive Control (V‐MPC) strategy is proposed. First, based on the optimal scheduling algorithm, according to the priority of the controlled object. The proportioning weights of the global feasible solution and the local optimal solution in the algorithm are coordinated. Then, using the equality‐constraints quadratic programming method, according to the relationship between the system frequency and the reference value, increase the weight of the qZSI algorithm or increase the proportion of VSG control to improve the ability to suppress frequency fluctuations. It can give full play to the short‐term power support role of the virtual synchronous wind turbine. The modeling and testing findings validate the suggested control strategy. When compared to the conventional finite control set model predictive control (FCS‐MPC), the V‐MPC can minimize the big store inductance current ripple and have lower THD in the load currents waveform.

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Modified virtual synchronous generator based‐primary frequency regulation for renewable generation integrated into power system

Cited by 7 publications

References 29 publications

Modeling and adaptive control strategy of hybrid microgrid based on virtual synchronous generator

Modeling and adaptive control strategy of hybrid microgrid based on virtual synchronous generator

Study on frequency modulation control strategy of electrochemical stored energy considering the state of battery charge

Variable weight coefficient MPC control strategy for qZSI‐VSG wind power grid‐connected system

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