Use of Stored Energy in PMSG Rotor Inertia for Low-Voltage Ride-Through in Back-to-Back NPC Converter-Based Wind Power Systems

Alepuz, Salvador; Calle, Alejandro; Busquets‐Monge, Sergio; Kouro, Samir; Wu, Bin

doi:10.1109/tie.2012.2190954

Cited by 208 publications

(172 citation statements)

References 21 publications

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“…Energy balance problem in a variable-flow system: A DD-WT with full-power back-to-back converter and gridside converter is controlled by the power grid voltage orientation [157]. When a network voltage drop occurs, the power grid voltage dips from e gd to e′ gd .…”

Section: Operation and Control Of Epcss In Dd-wts Under Grid Faultsmentioning

confidence: 99%

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Overview of condition monitoring and operation control of electric power conversion systems in direct-drive wind turbines under faults

Huang

Xiao

et al. 2017

Front. Mech. Eng.

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Electric power conversion system (EPCS), which consists of a generator and power converter, is one of the most important subsystems in a direct-drive wind turbine (DD-WT). However, this component accounts for the most failures (approximately 60% of the total number) in the entire DD-WT system according to statistical data. To improve the reliability of EPCSs and reduce the operation and maintenance cost of DD-WTs, numerous researchers have studied condition monitoring (CM) and fault diagnostics (FD). Numerous CM and FD techniques, which have respective advantages and disadvantages, have emerged. This paper provides an overview of the CM, FD, and operation control of EPCSs in DD-WTs under faults. After introducing the functional principle and structure of EPCS, this survey discusses the common failures in wind generators and power converters; briefly reviewed CM and FD methods and operation control of these generators and power converters under faults; and discussed the grid voltage faults related to EPCSs in DD-WTs. These theories and their related technical concepts are systematically discussed. Finally, predicted development trends are presented. The paper provides a valuable reference for developing service quality evaluation methods and fault operation control systems to achieve high-performance and high-intelligence DD-WTs.

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Section: Operation and Control Of Epcss In Dd-wts Under Grid Faultsmentioning

confidence: 99%

“…Scholars have suggested the following methods to address failures under variable-flow system energy balance [153][154][155][156][157][158][159][160][161]:…”

Section: Operation and Control Of Epcss In Dd-wts Under Grid Faultsmentioning

confidence: 99%

Overview of condition monitoring and operation control of electric power conversion systems in direct-drive wind turbines under faults

Huang

Xiao

et al. 2017

Front. Mech. Eng.

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“…Wind energy conversion [7], photovoltaic conversion [8] and multiphase AC drives [9] are some of the applications of 3LNPC inverters.…”

Section: Introductionmentioning

confidence: 99%

A Real-Time Method for the Diagnosis of Multiple Switch Faults in NPC Inverters Based on Output Currents Analysis

Abadi¹,

Mendes²,

Cruz³

2016

Journal of Power Electronics

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This paper presents a new approach for fault diagnosis in three-level neutral point clamped inverters. The proposed method is based on the average values of the positive and negative parts of normalized output currents. This method is capable of detecting and locating multiple open-circuit faults in the controlled power switches of converters in half of a fundamental period of those currents. The implementation of this diagnostic approach only requires two output currents of the inverter. Therefore, no additional sensors are needed other than the ones already used by the control system of a drive based on this type of converter. Moreover, through the normalization of currents, the diagnosis is independent of the load level of the converter. The performance and effectiveness of the proposed diagnostic technique are validated by experimental results obtained under steady-state and transient conditions.

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“…A PMSG can also contribute to the grid voltage support by generating more reactive power since it is interfaced with the power system via a full-scale back to back converter. These properties have made PMSGs become popular, even though converter losses increase [3,4].…”

Section: Introductionmentioning

confidence: 99%

Impact Study of PMSG-Based Wind Power Penetration on Power System Transient Stability Using EEAC Theory

Liu

et al. 2015

Energies

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Abstract:Wind turbines with direct-driven permanent magnet synchronous generators (PMSGs) are widely used in wind power generation. According to the dynamic characteristics of PMSGs, an impact analysis of PMSG-based wind power penetration on the transient stability of multi-machine power systems is carried out in this paper based on the theory of extended equal area criterion (EEAC). Considering the most severe PMSG integration situation, the changes in the system's equivalent power-angle relationships after integrating PMSGs are studied in detail. The system's equivalent mechanical input power and the fault period electrical output power curves are found to be mainly affected. The analysis demonstrates that the integration of PMSGs can cause either detrimental or beneficial effects on the system transient stability. It is determined by several factors, including the selection of the synchronous generators used to balance wind power, the reactive power control mode of PMSGs and the wind power penetration level. Two different simulation systems are also adopted to verify the analysis results.

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Use of Stored Energy in PMSG Rotor Inertia for Low-Voltage Ride-Through in Back-to-Back NPC Converter-Based Wind Power Systems

Cited by 208 publications

References 21 publications

Overview of condition monitoring and operation control of electric power conversion systems in direct-drive wind turbines under faults

Overview of condition monitoring and operation control of electric power conversion systems in direct-drive wind turbines under faults

A Real-Time Method for the Diagnosis of Multiple Switch Faults in NPC Inverters Based on Output Currents Analysis

Impact Study of PMSG-Based Wind Power Penetration on Power System Transient Stability Using EEAC Theory

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