具有可控硅不确定性的 MMC-HVDC 输电系统的稳健滑模控制

IF 1.7 4区 工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC
Farzin Gharaghani, Mehdi Asadi
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引用次数: 0

摘要

基于模块化多电平绿色变流器的高压直流(MMC-HVDC)输电系统已成为可再生能源与主交流电网互联的实用解决方案。将 MMC 连接到弱交流系统仍是一个棘手的问题。本文提出了一种基于滑模控制的 MMC 方法。通过将交流电网的短路比参数视为不确定因素,建立了一个合适的数学模型。同时,还获得了控制参数之间的关系及其有效性条件。与使用比例积分控制器的传统矢量电流控制方法相比,所提出的控制方案对不确定性和外部干扰具有更快的动态响应。最后,在 MATLAB/SIMULINK 软件环境下的仿真结果表明,所提出的控制方案是有效的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Robust sliding mode control for the MMC-HVDC transmission system with SCR uncertainty

Robust sliding mode control for the MMC-HVDC transmission system with SCR uncertainty

Modular multilevel green converter based high voltage direct current (MMC-HVDC) transmission system has become a practical solution to interconnect renewable energy sources to main AC grids. Connecting the MMC to a weak AC system is still a challengeable problem. This paper proposes a sliding mode control-based method for the MMC. By considering short circuit ratio parameter of the AC grid as uncertainty, a suitable mathematical model is developed. Also, relations among control parameters and their validity conditions are obtained. The proposed control scheme has faster dynamic responses to uncertainty and external disturbances compared to the conventional vector current control method with proportional–integral controller. At last, simulation results in the MATLAB/SIMULINK software environment are presented that the proposed control scheme is effective.

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来源期刊
IET Power Electronics
IET Power Electronics ENGINEERING, ELECTRICAL & ELECTRONIC-
CiteScore
5.50
自引率
10.00%
发文量
195
审稿时长
5.1 months
期刊介绍: IET Power Electronics aims to attract original research papers, short communications, review articles and power electronics related educational studies. The scope covers applications and technologies in the field of power electronics with special focus on cost-effective, efficient, power dense, environmental friendly and robust solutions, which includes: Applications: Electric drives/generators, renewable energy, industrial and consumable applications (including lighting, welding, heating, sub-sea applications, drilling and others), medical and military apparatus, utility applications, transport and space application, energy harvesting, telecommunications, energy storage management systems, home appliances. Technologies: Circuits: all type of converter topologies for low and high power applications including but not limited to: inverter, rectifier, dc/dc converter, power supplies, UPS, ac/ac converter, resonant converter, high frequency converter, hybrid converter, multilevel converter, power factor correction circuits and other advanced topologies. Components and Materials: switching devices and their control, inductors, sensors, transformers, capacitors, resistors, thermal management, filters, fuses and protection elements and other novel low-cost efficient components/materials. Control: techniques for controlling, analysing, modelling and/or simulation of power electronics circuits and complete power electronics systems. Design/Manufacturing/Testing: new multi-domain modelling, assembling and packaging technologies, advanced testing techniques. Environmental Impact: Electromagnetic Interference (EMI) reduction techniques, Electromagnetic Compatibility (EMC), limiting acoustic noise and vibration, recycling techniques, use of non-rare material. Education: teaching methods, programme and course design, use of technology in power electronics teaching, virtual laboratory and e-learning and fields within the scope of interest. Special Issues. Current Call for papers: Harmonic Mitigation Techniques and Grid Robustness in Power Electronic-Based Power Systems - https://digital-library.theiet.org/files/IET_PEL_CFP_HMTGRPEPS.pdf
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