机械弹性储能箱结构及并网控制策略优化

doi:10.19595/j.cnki.1000-6753.tces.181490

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摘要机械弹性储能（MEES）机组核心部件是机械弹性储能箱,提出了单体储能箱模块化-推拉式机械装配技术,基于传统储能箱组“手拉手”机械结构,通过增加单向超越离合器使储能箱之间实现了柔性联动,且具有防反转自锁功能。建立了储能箱额定功率、储能容量配置数学模型,并根据其特殊运行特性曲线,提出一种适用于机组发电过程的永磁同步发电机转速自适应控制算法,同时提出一种网侧变流器反推鲁棒控制算法。实验结果表明,所提方法能有效抑制机组参数扰动,永磁同步发电机能够快速响应、平稳运行,网侧变流器直流侧电压稳定并可以单位功率因数并网运行,发挥机组最大出力,有助于减小机侧变流器容量。

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	郑晓明
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关键词 ：机械弹性储能, 模块化-推拉式, 防反转自锁, 永磁同步发电机, 并网

Abstract：The mechanical elastic energy storage box is the energy storage element of the mechanical elastic energy storage unit. This paper proposes a new mechanical assembly technology based on push and pull structure. On the basis of the traditional energy storage box group "hand and hand" mechanical linkage structure, the unidirectional overrunning clutch takes the place of the coupling between the traditional energy storage boxes, which realizes the flexible linkage of the storage box group and has the function of anti-reverse self-locking. A mathematical model of the rated power and energy storage capacity of the storage box is set up. An adaptive speed control algorithm for permanent magnet synchronous generator is proposed, and a unit power factor backstepping control algorithm for grid side converter is also proposed. The experimental results show that this method can effectively suppress the disturbance of unit parameters. The power generation process of PMSG can be carried out smoothly, the DC side voltage of the grid side converter is stable, and the unit power factor grid-connected control is realized to ensure the maximum output of the device and reduce the capacity of converter.

Key words： Mechanical elastic energy storage (MEES) modularization-push and pull structure unidirectional overrunning clutch permanent magnet synchronous generator (PMSG) grid-connected

收稿日期: 2018-09-07 出版日期: 2019-11-28

PACS:

TM301

基金资助:国家自然科学基金项目（51407077）、国家电网公司2016年总部科技项目（5204BB16000F）、中央高校基本科研业务费专项资金（2017MS095）、华北电力大学“双一流”建设科学研究项目（17011804）资助

通讯作者: 郑晓明男,1986年生,博士,研究方向为机械弹性储能与永磁同步电机控制技术。E-mail: ysuzhxm@126.com

作者简介: 米增强男,1960年生,教授,博士生导师,研究方向为新能源电力系统与智能电网,机械弹性储能技术。E-mail: mizengqiang@sina.com

引用本文:

郑晓明, 米增强, 余洋, 贾雨龙, 刘力卿. 机械弹性储能箱结构及并网控制策略优化[J]. 电工技术学报, 2019, 34(22): 4708-4718. Zheng Xiaoming, Mi Zengqiang, Yu Yang, Jia Yulong, Liu Liqing. Optimization of Energy Storage Box Mechanical Structure and Grid-Connected Generation Control Strategy for Mechanical Elastic Energy Storage. Transactions of China Electrotechnical Society, 2019, 34(22): 4708-4718.

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