高压直流输电系统中变流器控制策略的研究
摘 要
随着电力工业的发展，高压直流输电技术日益成为电力系统中的重要组成部分，其优点如低电阻损耗、大容量输电能力、稳定性好等，成为人们追求的方向。变流器是高压直流输电系统中的核心设备之一，其控制策略的优良与否直接关系到整个系统的稳定性和性能。因此，本文探讨高压直流输电系统中变流器控制策略的研究，并对实践应用具有重要意义。本文介绍了高压直流输电系统的基本结构、优点和特点，以及主要设备。高压直流输电系统通常包括换流站、直流线路、变电站和控制系统。系统具有低电阻损耗、大容量输电能力、稳定性好等特点，并且可以将交流电能转换为直流电能。本文深入探讨了变流器的工作原理和基本控制策略，并对变流器控制策略的实现技术进行了详细介绍。变流器主要起到将交流电源转换为直流电源的作用，其控制策略包括对直流电压和功率的控制。为实现这些控制策略，本文分别介绍了SPWM技术、SVPWM技术和模型预测控制技术的原理和实现方法。在掌握了关于变流器控制策略的基本理论知识后，本文通过实践应用实例，分析了基于不同控制策略的变流器在高压直流输电系统中的性能。在实现基于SPWM技术、SVPWM技术和模型预测控制技术的变流器控制策略后，对它们分别进行了实验，通过分析实验结果得出了它们在高压直流输电系统中的应用示例和性能分析。
关键词：高压直流输电系统；变流器；SPWM技术；SVPWM技术
Abstract
With the development of the power industry, HVDC transmission technology has increasingly become an important part of the power system, its advantages such as low resistance loss, large capacity transmission capacity, good stability, have become the direction of people's pursuit. Converter is one of the core equipment in HVDC transmission system. Its excellent control strategy is directly related to the stability and performance of the whole system. Therefore, this paper discusses the study of converter control strategy in HVDC system and has great significance for practical application. This paper introduces the basic structure, advantages and characteristics of HVDC transmission system and the main equipment. HVDC transmission systems usually include converter stations, DC lines, substations, and control systems. The system has the characteristics of low resistance loss, large capacity transmission capacity, good stability, and can convert AC energy into DC energy. This paper discusses the working principle and basic control strategy of the converter, and introduces the implementation technique in detail. The converter mainly plays the role of converting AC power supply to DC power supply, and its control strategy includes the control of DC voltage and power. In order to realize these control strategies, this paper introduces the principles and implementation methods of SPWM, SVPWM and model predictive control techniques respectively. After mastering the basic theoretical knowledge about the converter control strategy, this paper analyzes the performance of the converter based on different control strategies in HVDC system through practical application examples. After realizing the converter control strategy based on SPWM, SVPWM and model prediction control technology, the experiments were conducted respectively, and their application examples and performance analysis in HVDC transmission system were analyzed.
Keywords: HVDC transmission system; Converter; SPWM technology; SVPWM technology
目 录
摘 要 I
Abstact II
绪 论 1
1高压直流输电系统概述 2
1.1 高压直流输电系统的基本结构 2
1.2 高压直流输电系统的特点 2
1.3 高压直流输电系统的主要设备 3
2变流器控制策略 3
2.1 变流器的工作原理 3
2.2 变流器的基本控制策略 4
2.3 变流器控制策略的实现技术 5
3高压直流输电变流器控制策略的研究 5
3.1 变流器控制策略的选型原则 5
3.2 实现基于SPWM技术的变流器控制策略 6
3.3 实现基于SVPWM技术的变流器控制策略 6
3.4 实现基于模型预测控制技术的变流器控制策略 7
4高压直流输电变流器控制策略的应用 8
4.1 基于SPWM技术的变流器控制策略的应用实例 8
4.2 基于SVPWM技术的变流器控制策略的应用实例 8
4.3 基于模型预测控制技术的变流器控制策略的应用实例 9
结 论 10
致 谢 11
参考文献 12
摘 要
随着电力工业的发展，高压直流输电技术日益成为电力系统中的重要组成部分，其优点如低电阻损耗、大容量输电能力、稳定性好等，成为人们追求的方向。变流器是高压直流输电系统中的核心设备之一，其控制策略的优良与否直接关系到整个系统的稳定性和性能。因此，本文探讨高压直流输电系统中变流器控制策略的研究，并对实践应用具有重要意义。本文介绍了高压直流输电系统的基本结构、优点和特点，以及主要设备。高压直流输电系统通常包括换流站、直流线路、变电站和控制系统。系统具有低电阻损耗、大容量输电能力、稳定性好等特点，并且可以将交流电能转换为直流电能。本文深入探讨了变流器的工作原理和基本控制策略，并对变流器控制策略的实现技术进行了详细介绍。变流器主要起到将交流电源转换为直流电源的作用，其控制策略包括对直流电压和功率的控制。为实现这些控制策略，本文分别介绍了SPWM技术、SVPWM技术和模型预测控制技术的原理和实现方法。在掌握了关于变流器控制策略的基本理论知识后，本文通过实践应用实例，分析了基于不同控制策略的变流器在高压直流输电系统中的性能。在实现基于SPWM技术、SVPWM技术和模型预测控制技术的变流器控制策略后，对它们分别进行了实验，通过分析实验结果得出了它们在高压直流输电系统中的应用示例和性能分析。
关键词：高压直流输电系统；变流器；SPWM技术；SVPWM技术
Abstract
With the development of the power industry, HVDC transmission technology has increasingly become an important part of the power system, its advantages such as low resistance loss, large capacity transmission capacity, good stability, have become the direction of people's pursuit. Converter is one of the core equipment in HVDC transmission system. Its excellent control strategy is directly related to the stability and performance of the whole system. Therefore, this paper discusses the study of converter control strategy in HVDC system and has great significance for practical application. This paper introduces the basic structure, advantages and characteristics of HVDC transmission system and the main equipment. HVDC transmission systems usually include converter stations, DC lines, substations, and control systems. The system has the characteristics of low resistance loss, large capacity transmission capacity, good stability, and can convert AC energy into DC energy. This paper discusses the working principle and basic control strategy of the converter, and introduces the implementation technique in detail. The converter mainly plays the role of converting AC power supply to DC power supply, and its control strategy includes the control of DC voltage and power. In order to realize these control strategies, this paper introduces the principles and implementation methods of SPWM, SVPWM and model predictive control techniques respectively. After mastering the basic theoretical knowledge about the converter control strategy, this paper analyzes the performance of the converter based on different control strategies in HVDC system through practical application examples. After realizing the converter control strategy based on SPWM, SVPWM and model prediction control technology, the experiments were conducted respectively, and their application examples and performance analysis in HVDC transmission system were analyzed.
Keywords: HVDC transmission system; Converter; SPWM technology; SVPWM technology
目 录
摘 要 I
Abstact II
绪 论 1
1高压直流输电系统概述 2
1.1 高压直流输电系统的基本结构 2
1.2 高压直流输电系统的特点 2
1.3 高压直流输电系统的主要设备 3
2变流器控制策略 3
2.1 变流器的工作原理 3
2.2 变流器的基本控制策略 4
2.3 变流器控制策略的实现技术 5
3高压直流输电变流器控制策略的研究 5
3.1 变流器控制策略的选型原则 5
3.2 实现基于SPWM技术的变流器控制策略 6
3.3 实现基于SVPWM技术的变流器控制策略 6
3.4 实现基于模型预测控制技术的变流器控制策略 7
4高压直流输电变流器控制策略的应用 8
4.1 基于SPWM技术的变流器控制策略的应用实例 8
4.2 基于SVPWM技术的变流器控制策略的应用实例 8
4.3 基于模型预测控制技术的变流器控制策略的应用实例 9
结 论 10
致 谢 11
参考文献 12
