Comprehensive frequency regulation scheme for permanent magnet synchronous generator‐based wind turbine generation system

Gao, David Wenzhong; Wu, Ziping; Yan, Weihang; Zhang, Huaguang; Yan, Shijie; Xiao, Wang

doi:10.1049/iet-rpg.2018.5247

Cited by 22 publications

(15 citation statements)

References 38 publications

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“…In the last decade, the direct-drive permeant magnet synchronous generator (D-PMSG) has been used in many industries, especially, for renewable energy applications [1][2][3], aircraft [4,5], and propulsion systems [6]. Normally, the stator resistance, d-q axis inductance, and permeant magnet flux linkage in the model of generator are constant by default, but in the actual operation process, the parameters of permeant magnet synchronous generator (PMSG) are affected by temperature, flux saturation, skin effect and so on, and these parameters are directly related to the performance of the controller.…”

Section: Introductionmentioning

confidence: 99%

Parameter identification of direct‐drive permanent magnet synchronous generator based on EDMPSO‐EKF

Xiao

Liao

Shi

et al. 2022

IET Renewable Power Gen

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Aiming at the problem that extended Kalman filter (EKF) is difficult to determine the appropriate system and measurement noise matrices in parameter identification of direct‐drive permanent magnet synchronous generator (D‐PMSG), a parameter identification method of D‐PMSG based on mean particle swarm optimization with extreme disturbance (EDMPSO)‐EKF is proposed. Firstly, by analysing the principle of EKF, a dual‐thread identification model is established, then the particle swarm optimization (PSO) algorithm is improved to jump out of the local optimum by adding extremum interference and taking average extremum, and a suitable fitness function is designed. Finally, the improved PSO algorithm is applied to the adaptive optimization of EKF system noise matrix and measurement noise matrix, and the system performs the parameter identification after obtaining the optimal noise matrix. The simulation and experiment results show that the proposed method has better convergence speed and can more accurately identify the parameters of stator resistance, inductance and flux linkage, and it has better identification accuracy and generalization ability than the traditional method.

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Section: Introductionmentioning

confidence: 99%

Parameter identification of direct‐drive permanent magnet synchronous generator based on EDMPSO‐EKF

Xiao

Liao

Shi

et al. 2022

IET Renewable Power Gen

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“…Based on the de-loaded control, the droop control is adopted to akin to the synchronous generators, which can provide minutes-term primary frequency support. In (Gao et al, 2019), a comprehensive frequency regulation scheme that combines the stepwise inertial control and variable-droop control is proposed. A coordinated control scheme that flexibly switches between additional power control, tracking curve control, and pitch angle adjustment control at different start-up stages is proposed, which can effectively improve insufficient frequency support.…”

Section: Introductionmentioning

confidence: 99%

An Equivalent Rotor Speed Compensation Control of PMSG-Based Wind Turbines for Frequency Support in Islanded Microgrids

Zhong

Zhou³

et al. 2021

Front. Energy Res.

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Frequency regulation is a critical issue in the islanded microgrids, especially the integration of high penetration of the wind power generator. In order to provide inertial and primary frequency support to the wind power system, this article proposes an equivalent rotor speed compensation control scheme of PMSG for frequency support in the islanded microgrids. A new variable combining pitch angle and rotor speed is defined as the equivalent rotor speed. The equivalent rotor speed versus de-loaded power curve is designed to preserve a part of active power among the whole wind speed area. And the inertia control scheme is optimized by adding a virtual compensation variable to the equivalent rotor speed to obtain the reference of the machine-side converter control loop. Adopting the proposed scheme, the PMSG-based wind turbine can achieve a similar frequency regulation performance to synchronous generators. Simulation results demonstrate the feasibility and effectiveness of the proposed control scheme.

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“…But, it still required the parameter of wind turbines. In Gao et al (2019) a comprehensive frequency regulation that combines the step-wise inertial control and variable-droop control is present.…”

Section: Introductionmentioning

confidence: 99%

Frequency support scheme based on parametrized power curve for de-loaded wind turbine under various wind speed

Zhong

et al. 2021

Wind Engineering

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With increased wind power penetration in modern power systems, wind plants are required to provide frequency support similar to conventional plants. However, for the existing frequency regulation scheme of wind turbines, the control gains in the auxiliary frequency controller are difficult to set because of the compromise of the frequency regulation performance and the stable operation of wind turbines, especially when the wind speed remains variable. This paper proposes a novel frequency regulation scheme (FRS) for de-loaded wind turbines. Instead of an auxiliary frequency controller, frequency support is provided by modifying the parametrized power versus rotor speed ( Pw-ω r) curve, including the inertia power versus rotor speed curve and the droop power versus rotor speed curve. The advantage of the proposed scheme is that it does not contain any control gains and generally adapts to different wind speeds. Further, the proposed scheme can work for the whole section of wind speed without wind speed measurement information. The compared simulation results demonstrate the scheme improves the system frequency response while ensuring the stable operation of doubly-fed induction generators (DFIGs)-based variable-speed wind turbines (VSWTs) under various wind conditions. Furthermore, the scheme prevents rotor speed overdeceleration even when the wind speed decreases during frequency regulation control.

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Comprehensive frequency regulation scheme for permanent magnet synchronous generator‐based wind turbine generation system

Cited by 22 publications

References 38 publications

Parameter identification of direct‐drive permanent magnet synchronous generator based on EDMPSO‐EKF

Parameter identification of direct‐drive permanent magnet synchronous generator based on EDMPSO‐EKF

An Equivalent Rotor Speed Compensation Control of PMSG-Based Wind Turbines for Frequency Support in Islanded Microgrids

Frequency support scheme based on parametrized power curve for de-loaded wind turbine under various wind speed

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