Open-Switch Fault Tolerance Control for a Three-Level NPC/T-Type Rectifier in Wind Turbine Systems

Lee, June-Seok; Lee, Kyo‐Beum

doi:10.1109/tie.2014.2347912

Cited by 88 publications

(49 citation statements)

References 25 publications

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“…The small-signal model of the proposed control scheme. 2 dc inv u p   Fig.17. The bode diagram of small-signal model of three-level T-type converter.…”

Section: Voltage Controller With Instantaneous Power Feedforwardmentioning

confidence: 99%

“…The main purpose of this application is to make full use of the surplus power of combustion engines to provide power for the ship grid. An ac/dc/ac converter consists of a pulse width modulation (PWM) rectifier, an intermediate dc-link capacitor and a PWM inverter [2]. The rectifier is used to transfer specific power from the BESG to the dc-link capacitor.…”

Section: Introductionmentioning

confidence: 99%

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A Novel Control Scheme for T-Type Three-Level SSG Converters Using Adaptive PR Controller with a Variable Frequency Resonant PLL

Lin

Huang²,

Wan

2016

Journal of Power Electronics

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In this paper, a novel quasi-direct power control (Q-DPC) scheme based on a resonant frequency adaptive proportional-resonant (PR) current controller with a variable frequency resonant phase locked loop (RPLL) is proposed, which can achieve a fast power response with a unity power factor. It can also adapt to variations of the generator frequency in T-type Three-level shaft synchronous generator (SSG) converters. The PR controller under the static α-β frame is designed to track ac signals and to avert the strong cross coupling under the rotating d-q frame. The fundamental frequency can be precisely acquired by a RPLL from the generator terminal voltage which is distorted by harmonics. Thus, the resonant frequency of the PR controller can be confirmed exactly with optimized performance. Based on an instantaneous power balance, the load power feed-forward is added to the power command to improve the anti-disturbance performance of the dc-link. Simulations based on MATLAB/Simulink and experimental results obtained from a 75kW prototype validate the correctness and effectiveness of the proposed control scheme.

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“…The small-signal model of the proposed control scheme. 2 dc inv u p   Fig.17. The bode diagram of small-signal model of three-level T-type converter.…”

Section: Voltage Controller With Instantaneous Power Feedforwardmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Novel Control Scheme for T-Type Three-Level SSG Converters Using Adaptive PR Controller with a Variable Frequency Resonant PLL

Lin

Huang²,

Wan

2016

Journal of Power Electronics

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“…Compared with traditional two-level inverters, multi-level inverters offer a more significant advantage in terms of power capacity and the capability to withstand voltages. A T-type converter topology is an improved three-level (multi-level) neutral point clamped (NPC) circuit [14]- [17], as shown in Fig. 2(a).…”

Section: Introductionmentioning

confidence: 99%

Switching Transient Analysis and Design of a Low Inductive Laminated Bus Bar for a T-type Converter

Wang¹,

Chang²,

Li³

et al. 2016

Journal of Power Electronics

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Distributed stray inductance exerts a significant influence on the turn-off voltages of power switching devices. Therefore, the design of low stray inductance bus bars has become an important part of the design of high-power converters. In this study, we first analyze the operational principle and switching transient of a T-type converter. Then, we obtain the commutation circuit, categorize the stray inductance of the circuit, and study the influence of the different types of stray inductance on the turn-off voltages of switching devices. According to the current distribution of the commutation circuit, as well as the conditions for realizing laminated bus bars, we laminate the bus bar of the converter by integrating the practical structure of a capacitor bank and a power module. As a result, the stray inductance of the bus bar is reduced, and the stray inductance in the commutation circuit of the converter is reduced to more than half. Finally, a 10 kVA experimental prototype of a T-type converter is built to verify the effectiveness of the designed laminated bus bar in restraining the turn-off voltage spike of the switching devices in the converter.

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“…A review of many condition monitoring 13 algorithms for different parts of WECSs is presented in [9]. 14 Many papers in the recent years have studied fault tolerant operation of power electronic 15 converters in general applications such as electrical drives. For example, several fault-tolerant 16 techniques for two-level and multilevel converters are reviewed in [10].…”

mentioning

confidence: 99%

“…Combined with a 12 proper hardware implementation, this method which is very fast compared to other existing 13 fault diagnosis methods, minimizes the effect of a fault on the system. More importantly, this 14 method is independent of the system parameters as well as wind conditions, which makes it 15 more resilient and better-suited for fault-tolerant operation. however, uncertainties and disturbances should be considered as well.…”

mentioning

confidence: 99%

Real-time power switch fault diagnosis and fault-tolerant operation in a DFIG-based wind energy system

2018

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Open-Switch Fault Tolerance Control for a Three-Level NPC/T-Type Rectifier in Wind Turbine Systems

Cited by 88 publications

References 25 publications

A Novel Control Scheme for T-Type Three-Level SSG Converters Using Adaptive PR Controller with a Variable Frequency Resonant PLL

A Novel Control Scheme for T-Type Three-Level SSG Converters Using Adaptive PR Controller with a Variable Frequency Resonant PLL

Switching Transient Analysis and Design of a Low Inductive Laminated Bus Bar for a T-type Converter

Real-time power switch fault diagnosis and fault-tolerant operation in a DFIG-based wind energy system

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