Fault Detection and Protection of Three-level Neutral-Point-Clamped PWM Voltage Source Converters

机译：三级中性点钳位PWM电压源转换器的故障检测与保护

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This paper presents the detection and protection methods uniquely associated with three-level NPC voltage source converters. The line-to-ground fault can cause significant dc-link neutral voltage and therefore can be effectively detected and located through monitoring the voltage without extra hardware. The inner device short in the three-level phase-leg can lead to dc-link voltage unbalance and doubling the stress on capacitors and devices, which must be suppressed for the safe operation of the converter. Two overvoltage limiting methods are proposed to limit the overvoltage. The design of both the ground fault detection and overvoltage limiting has been covered in the paper. The schemes are verified through simulation and experiments.

机译：本文介绍了与三级NPC电压源转换器独特相关的检测和保护方法。线到接地故障可能会导致显着的直流链路中性电压，因此可以通过监控无需额外硬件的电压来有效地检测和定位。三级相位腿中的内部器件可以导致直流链路电压不平衡，并将压力加倍，电容器和器件上的应力加长，这必须抑制转换器的安全操作。提出了两个过压限制方法以限制过电压。纸张覆盖了地面故障检测和过电压限制的设计。通过模拟和实验验证这些方案。

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来源
《IEEE Industry Applications Society Annual Meeting》|2008年||共7页
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作者
Fred Wang; Rixin Lai; Xibo Yuan; Fang Luo; Rolando Burgos; Dushan Boroyevich;
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原文格式 PDF
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中图分类 TB-53;
关键词
Three-level neutral-point-clapmed converter; Failure modes; Fault detection; Protection;

机译：三级中性点拍摄转换器;故障模式;故障检测;保护;

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专利

1. Failure-Mode Analysis and Protection of Three-Level Neutral-Point-Clamped PWM Voltage Source Converters [J] . Fei Wang, Rixin Lai, Xibo Yuan, Industry Applications, IEEE Transactions on . 2010,第2期

机译：三电平中性点钳位PWM电压源转换器的故障模式分析和保护
2. A Carrier-Based PWM Technique for Capacitor Voltage Balancing of Single-Phase Three-Level Neutral-Point-Clamped Converters [J] . de Freitas Isaac Soares, Bandeira Marcos Moura, Barros Luciano de Macedo, Industry Applications, IEEE Transactions on . 2015,第4期

机译：基于载波的PWM技术用于单相三电平中性点钳位转换器的电容器电压平衡
3. A Carrier-Based PWM Strategy With the Offset Voltage Injection for Single-Phase Three-Level Neutral-Point-Clamped Converters [J] . Song W., Feng X., Smedley K. M Power Electronics, IEEE Transactions on . 2013,第3期

机译：单相三电平中性点钳位转换器的基于载波的PWM策略，带有偏置电压注入
4. Fault Detection and Protection of Three-level Neutral-Point-Clamped PWM Voltage Source Converters [C] . Fred Wang, Rixin Lai, Xibo Yuan, IEEE Industry Applications Society Annual Meeting . 2008

机译：三级中性点钳位PWM电压源转换器的故障检测与保护
5. Control and protection of multi-terminal DC transmission systems based on voltage-source converters. [D] . Tang, Lianxiang. 2003

机译：基于电压源转换器的多端子直流传输系统的控制和保护。
6. The Application of Auto-Disturbance Rejection Control Optimized by Least Squares Support Vector Machines Method and Time-Frequency Representation in Voltage Source Converter-High Voltage Direct Current System [O] . Ying-Pei Liu, Hai-Ping Liang, Zhong-Ke Gao -1

机译：最小二乘支持向量机方法和时频表示优化的自抗干扰控制在电压源变换器-高压直流系统中的应用
7. Modified Unipolar Carrier-Based PWM Strategy for Three-Level Neutral-Point-Clamped Voltage Source Inverters [O] . Watcharin Srirattanawichaikul, Suttichai Premrudeepreechacharn, Yuttana Kumsuwan 2014

机译：用于三级中性点夹紧电压源逆变器的改进的基于单极的载波PWM策略
8. Protection and Fault Detection for Lawrence Berkeley Laboratory Neutral Beam Sources [R] . Hopkins, D. B., Baker, W. R., Berkner, K. H., 1979

机译：劳伦斯伯克利实验室中性束源的保护和故障检测

Fault Detection and Protection of Three-level Neutral-Point-Clamped PWM Voltage Source Converters

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