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首页> 外文期刊>Electric power systems research >HVDC transmission systems: Bipolar back-to-back diode clamped multilevel converter with fast optimum-predictive control and capacitor balancing strategy
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HVDC transmission systems: Bipolar back-to-back diode clamped multilevel converter with fast optimum-predictive control and capacitor balancing strategy

机译：高压直流输电系统：双极背靠背二极管钳位多电平转换器，具有快速的最佳预测控制和电容器平衡策略

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摘要

Voltage source multilevel power converter structures are being considered for high power high voltage applications where they have well known advantages. Recently, full back-to-back connected multilevel neutral diode clamped converters (NPC) have been used in high voltage direct current (HVDC) transmission systems. Bipolar back-to-back connection of NPCs have advantages in long distance HVDC transmission systems, but highly increased difficulties to balance the dc capacitor voltage dividers on both sending and receiving end NPCs. This paper proposes a fast optimum-predictive controller to balance the dc capacitor voltages and to control the power flow in a long distance HVDC system using bipolar back-to-back connected NPCs. For both converter sides, the control strategy considers active and reactive power to establish ac grid currents on sending and receiving ends, while guaranteeing the balancing of both NPC dc bus capacitor voltages. Furthermore, the fast predictive controller minimizes the semiconductor switching frequency to reduce global switching losses. The performance and robustness of the new fast predictive control strategy and the associated dc capacitors voltage balancing are evaluated.
机译：电压源多电平功率转换器结构正考虑用于具有众所周知优势的高功率高压应用。最近，全背靠背连接的多电平中性二极管钳位转换器（NPC）已用于高压直流（HVDC）传输系统中。 NPC的双极背对背连接在长距离HVDC传输系统中具有优势，但是在平衡发送和接收端NPC上的直流电容器分压器时，难度大大增加。本文提出了一种快速的最优预测控制器，该控制器使用双极背对背连接的NPC在长距离HVDC系统中平衡直流电容器的电压并控制功率流。对于转换器的两端，控制策略都考虑有功和无功功率，以在发送和接收端建立交流电网电流，同时保证两个NPC直流总线电容器电压的平衡。此外，快速预测控制器可将半导体开关频率降至最低，从而降低总体开关损耗。评估了新的快速预测控制策略的性能和鲁棒性以及相关的直流电容器电压平衡。

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  • 来源
    《Electric power systems research》 |2011年第7期|p.1436-1445|共10页
  • 作者

    Miguel Chaves; Elmano Margate; J.Fernando Silva; Sonia F.Pinto; J.Santana;

  • 作者单位

    Center for Innovation on Electrical and Energy Engineering, Av. Rovisco Pais 1049-001 Lisboa, Portugal,Centra de Electrotecnia e Electronica Industrial, 1SEL R. Conselheiro Emtdio Navarro 1,1950-062 Lisboa, Portugal;

    Center for Innovation on Electrical and Energy Engineering, Av. Rovisco Pais 1049-001 Lisboa, Portugal,Centra de Electrotecnia e Electronica Industrial, 1SEL R. Conselheiro Emtdio Navarro 1,1950-062 Lisboa, Portugal;

    Center for Innovation on Electrical and Energy Engineering, Av. Rovisco Pais 1049-001 Lisboa, Portugal,AC Energia, DEEC, Instituto Superior Tecnico, TULisbon, Av. Rovisco Pais 1049-001 Lisboa, Portugal;

    Center for Innovation on Electrical and Energy Engineering, Av. Rovisco Pais 1049-001 Lisboa, Portugal,AC Energia, DEEC, Instituto Superior Tecnico, TULisbon, Av. Rovisco Pais 1049-001 Lisboa, Portugal;

    Center for Innovation on Electrical and Energy Engineering, Av. Rovisco Pais 1049-001 Lisboa, Portugal,AC Energia, DEEC, Instituto Superior Tecnico, TULisbon, Av. Rovisco Pais 1049-001 Lisboa, Portugal;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    hvdc multilevel converters bipolar hvdc vsc dc bus voltages balancing predictive control strategy;

    机译：高压直流多电平转换器双极性高压直流vsc直流总线电压平衡预测控制策略;

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