VSG Control for DFIG-based Islanded Wind Farm with LCC-HVDC Integration

He, Xiuqiang; Geng, Hua; Yang, Geng; Zou, Xin

doi:10.1109/pesgm.2018.8585982

Cited by 2 publications

(1 citation statement)

References 14 publications

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“…Various methods for providing frequency control service from such HVDC systems are presented in [64,65]. In [66], the authors have proposed virtual synchronous generators (VSG) approach for providing frequency control from islanded windfarms. Methods for providing blackstart service with LCC-based HVDC systems has been detailed in [67,68].…”

Section: Ancillary Services and Hvdc Systemsmentioning

confidence: 99%

An Overview of Ancillary Services and HVDC Systems in European Context

Kaushal

Hertem

2019

Energies

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Liberalization of electricity markets has brought focus on the optimal use of generation and transmission infrastructure. In such a scenario, where the power transmission systems are being operated closer to their critical limits, Ancillary Services (AS) play an important role in ensuring secure and cost-effective operation of power systems. Emerging converter-based HVDC technologies and integration of renewable energy sources (RES) have changed the power system dynamics which are based on classical power plant operation and synchronous generator dynamics. Transmission system interconnections between different countries and integrated energy markets in Europe have led to a reduction in the use of energy from non-renewable fossil-based sources. This review paper gives an insight into ancillary services definitions and market practices for procurement and activation of these ancillary services in different control areas within the European Network of Transmission System Operators for Electricity (ENTSO-E). The focus lies particularly on ancillary services from HVDC systems. It is foreseen that DC elements will play an important role in the control and management of the future power system and in particular through ancillary services provision. Keeping this in view, the capability of HVDC systems to provide ancillary services is presented.

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Section: Ancillary Services and Hvdc Systemsmentioning

confidence: 99%

An Overview of Ancillary Services and HVDC Systems in European Context

Kaushal

Hertem

2019

Energies

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Multi-Target Control Strategy of DFIG Using Virtual Synchronous Generator Based on Extended Power Resonance Control under Unbalanced Power Grid

et al. 2020

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Virtual synchronous generator control is considered as an effective solution to optimize the frequency response characteristics of doubly fed induction generator. However, due to the insufficient control bandwidth of the original virtual synchronous generator, it has little control effect over the oscillating components of the power caused by the unbalanced grid voltage. Therefore, long-term unbalanced voltage will cause a series of problems, such as distortion of stator and rotor currents, as well as oscillations of power and electromagnetic torque, which seriously affect the power quality and the operating performance of the doubly fed induction generator. To solve these problems, the concept of extended power is introduced, and the second-order generalized integrator-based resonant controller is used to control the extended power and traditional power. Control targets of the extended power method are discussed and extended, so that the doubly fed induction generator system using extended power resonant control-based virtual synchronous generator control can realize three different control targets under the unbalanced grid condition. The three control targets are: balanced and sinusoidal stator current, sinusoidal stator current and constant active power, and sinusoidal stator current and constant reactive power and electromagnetic torque. The three control targets can also be flexibly switched according to the real-time requirements of the grid with unbalanced voltage. The simulation results verify the effectiveness of the control method.

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VSG Control for DFIG-based Islanded Wind Farm with LCC-HVDC Integration

Cited by 2 publications

References 14 publications

An Overview of Ancillary Services and HVDC Systems in European Context

An Overview of Ancillary Services and HVDC Systems in European Context

Multi-Target Control Strategy of DFIG Using Virtual Synchronous Generator Based on Extended Power Resonance Control under Unbalanced Power Grid

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