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Topologies, analysis, controls and generalization in H-bridge multilevel power conversion.

机译：H桥多电平功率转换中的拓扑，分析，控制和通用化。

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摘要

Use of multilevel inverters is becoming popular in the recent years for high power applications. Various topologies and modulation strategies have been investigated for utility and drive applications in the recent literature. Trends in power semiconductor technology indicate a trade-off in the selection of power devices in terms of the switching frequency and voltage sustaining capability. New power converter topologies permit modular realization of multilevel inverters using a hybrid approach involving Integrated Gate Commutated Thyristors (IGCT) and Insulated Gate Bipolar Transistors (IGBT) operating in synergism. This work is devoted to the investigation of a hybrid multilevel power conversion system typically suitable for high performance, high power applications. This system designed for 4.16 kV, ≥100 HP load comprises of a hybrid seven-level inverter, a diode bridge rectifier and a IGBT rectifier per phase. The IGBT rectifier is used on the utility side as a real power flow regulator to the low voltage converter and as a harmonic compensator for the high voltage converter. The hybrid seven-level inverter on the load side consists of a high voltage, slow switching IGCT inverter and a low voltage, fast switching IGBT inverter. By employing different devices under different operating conditions, it is shown that one can optimize the power conversion capability of entire system. A detailed analysis of a novel hybrid modulation technique for the inverter, which incorporates stepped synthesis in conjunction with variable pulse width of the consecutive steps, is included. In addition, performance of a multilevel current regulated delta modulator as applied to the single phase full bridge IGBT rectifier is discussed. Operating principles, spectral structure and other practical issues such as power flow interaction between component inverters is described in detail in this thesis. A generalized topological structure along with an analysis of a generalized hybrid modulation strategy is also included. Detailed computer simulations accompanied with experimental verification are presented in this work.
机译：近年来，在高功率应用中，多电平逆变器的使用正变得越来越普遍。在最近的文献中，已经针对实用性和驱动应用研究了各种拓扑和调制策略。功率半导体技术的趋势表明，就开关频率和电压维持能力而言，在选择功率器件方面需要权衡。新的功率转换器拓扑结构允许使用混合方法实现多级逆变器的模块化实现，该方法包括协同工作的集成栅极换向晶闸管（IGCT）和绝缘栅双极晶体管（IGBT）。这项工作致力于研究通常适用于高性能，高功率应用的混合多电平功率转换系统。该系统设计用于4.16 kV，≥100 HP负载，每相包含一个混合七电平逆变器，一个二极管桥式整流器和一个IGBT整流器。 IGBT整流器在公用事业方面用作低压转换器的有功功率流量调节器，以及高压转换器的谐波补偿器。负载侧的混合式七电平逆变器由高压慢速开关IGCT逆变器和低压快速开关IGBT逆变器组成。通过在不同的工作条件下使用不同的设备，表明可以优化整个系统的功率转换能力。包括对逆变器的新型混合调制技术的详细分析，该技术结合了逐步合成以及连续步骤的可变脉冲宽度。此外，还讨论了应用于单相全桥IGBT整流器的多级电流调节增量调制器的性能。本文详细描述了工作原理，频谱结构以及其他实际问题，例如组件逆变器之间的功率流相互作用。还包括广义拓扑结构以及广义混合调制策略的分析。这项工作介绍了详细的计算机模拟以及实验验证。

著录项

  • 作者

    Manjrekar, Madhav Devidas.;

  • 作者单位

    The University of Wisconsin - Madison.;

  • 授予单位 The University of Wisconsin - Madison.;
  • 学科 Engineering Electronics and Electrical.
  • 学位 Ph.D.
  • 年度 1999
  • 页码 309 p.
  • 总页数 309
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 无线电电子学、电信技术;
  • 关键词

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