Smart Loads for Improving the Fault-Ride-Through Capability of Fixed-Speed Wind Generators in Microgrids

Yan, Shijie; Wang, Minghao; Chen, Jie

doi:10.1109/tsg.2017.2749622

Cited by 13 publications

(8 citation statements)

References 28 publications

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“…Series VSC prevents excessive speed in the FSIG; whereas, shunt VSC feeds the reactive power voltage during the voltage dip. 75 Unified Compensation System (UCS) It operates in a fashion similar to that of STATCOM, and shunt connection supports the voltage and reactive power compensation. Further, it switches from shunt to the series grid connection in order to compensate the voltage and maintain the rated stator voltage during fault conditions.…”

Section: Unified Power Quality Conditioner (Upqc)mentioning

confidence: 99%

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Comprehensive review on low voltage ride through capability of wind turbine generators

Hiremath

Moger

2020

Int Trans Electr Energ Syst

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Wind energy has made more inroads in renewable power generation due to environmental impact of conventional energy sources. The high penetration of grid connected wind energy has emerged as a recent trend in many countries. On the other hand, the problem of power generation loss due to the grid fault also arisen. The recent technological advancement suggests the importance of low voltage ride through (LVRT) in wind energy conversion system (WECS). However, LVRT is a technique in making uninterrupted connectivity of WECS in the presence of grid fault. This paper presents the state of the art of LVRT capabilities of various wind turbine generators using FACTS devices and different converter controllers. Also, the main challenging issues and different approaching strategies in LVRT are addressed. Finally, extracting all important features from distinct papers, new dimension of LVRT is presented for the power quality and power generation loss problems.

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Section: Unified Power Quality Conditioner (Upqc)mentioning

confidence: 99%

“…It includes series and shunt VSC. Series VSC prevents excessive speed in the FSIG; whereas, shunt VSC feeds the reactive power voltage during the voltage dip 75 …”

Section: Fsig Based Wecsmentioning

confidence: 99%

Comprehensive review on low voltage ride through capability of wind turbine generators

Hiremath

Moger

2020

Int Trans Electr Energ Syst

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“…The real power, P g , and reactive power, Q g , generated by the FSIG can be expressed in terms of terminal voltage, V m , and slip, s, as: 2 (1) 2 (2)…”

Section: Wind Turbine Model Of Fixed Speed Wind Generation Systems Fomentioning

confidence: 99%

“…In this scenario, representation and initialisation of dynamic models of wind energy conversion systems is of primary concern before carrying out any further analysis. Type-1 or fixed speed induction generators (FSIG) are still being used and they are about 20% of the installed wind generation [1,2]. In Type-1 wind turbine systems, induction machines are directly connected to the grid without any power electronic interface.…”

Section: Introductionmentioning

confidence: 99%

New unified NR power flow algorithm for initialising fixed speed wind generation system with turbine characteristics

Varma¹,

Kumar²

2019

IET Renewable Power Generation

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Fixed speed induction machine-based wind generators are widely used. Proper initialisation of the models representing fixed speed induction machine-based wind generators connected to grid is of primary concern for stability analysis. The initialisation of fixed speed induction generators (FSIG) has been performed using conventional power flow techniques, but there exists a reactive power mismatch which makes initialisation imprecise. Moreover, turbine characteristics along with control mechanisms are not properly included for initialising the dynamics for stability analysis. A unified Newton-Raphson (NR) method was proposed in literature to include turbine characteristics and control methods for accurate initialisation of FSIG. However, this method creates an extra node for every induction machine causing an increase in the size of the Jacobian and time of execution of power flow algorithm. A new unified-NR method, which does not need an extra node, for initialisation of grid-connected FSIG is proposed in the present work. The proposed unified NR method has been validated on 14-bus, 41-bus, 203-bus, and 1336-bus test systems. The results of the proposed new unified-NR method are compared with existing unified-NR method. The results clearly demonstrate that the proposed method initialisation is accurate with considerably less computational time as compared to existing unified-NR.

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“…Moreover, the criteria and conditions for minimizing the average and oscillating power of the 3-ph ES are introduced in [17]. ES is evaluated for improving the fault-ride through capability of the wind turbine generation system with fixed speed induction generator 2 Journal of Electrical and Computer Engineering in [18]. In general, although there have been some research results of ES, however the potential of ES has not been fully tapped.…”

Section: Introductionmentioning

confidence: 99%

Restraining the Demand Side Power Fluctuation of Active Distribution Network Using 0°/180° Phase Controlled Electric Spring

Chen

et al. 2018

Journal of Electrical and Computer Engineering

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In active distribution network, the random power output by wind/solar distributed generation may cause the stochastic fluctuation of demand side power, which will bring difficulties to power dispatching. In this paper, a method of restraining the demand side power fluctuation of active distribution network is proposed, in which a new power electronic device—electric spring—is applied by 0°/180° phase control strategy. Firstly, the basic principles of electric spring are introduced. Secondly, the reason for demand side power fluctuation of active distribution network is analyzed. After that, the 0°/180° phase control strategy of electric spring is proposed to restrain the demand side power fluctuation of active distribution network and the selection basis of noncritical loads is also obtained. The simulation results show that the method proposed in this paper is effective and the obtained selection basis of noncritical loads is reasonable.

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Smart Loads for Improving the Fault-Ride-Through Capability of Fixed-Speed Wind Generators in Microgrids

Cited by 13 publications

References 28 publications

Comprehensive review on low voltage ride through capability of wind turbine generators

Comprehensive review on low voltage ride through capability of wind turbine generators

New unified NR power flow algorithm for initialising fixed speed wind generation system with turbine characteristics

Restraining the Demand Side Power Fluctuation of Active Distribution Network Using 0°/180° Phase Controlled Electric Spring

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