| 模块化多电平换流器型多端高压直流输电控制参数优化方法 |
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| 引用本文： | 刘宛菘,秦博宇,张若微,刘佳玲.模块化多电平换流器型多端高压直流输电控制参数优化方法[J].电机与控制学报,2021,25(2):10-18,27. |
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| 作者姓名： | 刘宛菘 秦博宇 张若微 刘佳玲 |
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| 作者单位： | 西安交通大学 电力设备电气绝缘国家重点实验室,西安710049;西安交通大学 陕西省智能电网重点实验室,西安710049;西安交通大学 电气工程学院,西安710049;西安交通大学 电力设备电气绝缘国家重点实验室,西安710049;西安交通大学 陕西省智能电网重点实验室,西安710049;西安交通大学 电气工程学院,西安710049;西安交通大学 电力设备电气绝缘国家重点实验室,西安710049;西安交通大学 陕西省智能电网重点实验室,西安710049;西安交通大学 电气工程学院,西安710049;西安交通大学 电力设备电气绝缘国家重点实验室,西安710049;西安交通大学 陕西省智能电网重点实验室,西安710049;西安交通大学 电气工程学院,西安710049 |
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| 基金项目： | 国家重点研发计划资助项目 |
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| 摘 要： | 针对模块化多电平换流器型多端直流(MMC-MTDC)输电系统的稳定性受不同换流站控制系统之间相互作用的影响,不恰当的控制参数可能会降低MMC-MTDC系统的稳定裕度问题,提出一种MMC-MTDC控制参数的优化方法以提升系统的稳定裕度.首先,建立包括MMC主回路、控制系统、交流系统与直流系统的MMC-MTDC小信号模型....
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| 关 键 词： | 模块化多电平换流器 多端直流输电系统 稳定性分析 小信号模型 灵敏度分析 控制参数优化 |
Optimal design method of control parameters for MMC-MTDC |
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| LIU Wan-song,QIN Bo-yu,ZHANG Ruo-wei,LIU Jia-ling.Optimal design method of control parameters for MMC-MTDC[J].Electric Machines and Control,2021,25(2):10-18,27. |
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| Authors: | LIU Wan-song QIN Bo-yu ZHANG Ruo-wei LIU Jia-ling |
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| Affiliation: | (State Key Laboratory of Electrical Insulation and Power Equipment,Xi’an Jiaotong University,Xi’an 710049,China;Smart Grid Key Laboratory of Shaanxi Province,Xi’an Jiaotong University,Xi’an 710049,China;School of Electrical Engineering,Xi’an Jiaotong University,Xi’an 710049,China) |
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| Abstract: | Aiming at the problem that the stability of modular multilevel converter based multi terminal high voltage direct current transmission system(MMC-MTDC)is affected by the interaction between the control systems of different converters,and inappropriate control parameters may reduce the stability margin of MMC-MTDC system,an optimization method of MMC-MTDC control parameters is proposed to improve the stability of the system.First,the small signal dynamic model of MMC-MTDC including MMC main circuit,control system,AC system and DC system was established.Second,the optimal design of control parameters with eigenvalue-based objective function was formulated,and a joint optimization algorithm based on parameter sensitivity analysis was proposed.In the process of optimization,backtracking line search(BLS)was applied to calculate the feasible optimization step of each iteration.Finally,the proposed control parameter optimization design method was applied in a three-terminal MMC-MTDC system.Stability assessment,time domain simulation and the comparison with the particle swarm optimization were performed to verify the effectiveness of the proposed parameter optimization design method. |
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| Keywords: | modular multilevel converter multi-terminal direct current stability analysis small signal dynamic model sensitivity analysis control parameters optimal design |
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