1 MW/60 MJ飞轮储能系统设计与实验研究

doi:10.19595/j.cnki.1000-6753.tces.161486

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摘要

为钻机混合动力传动系统研制了1套1 MW/60 MJ飞轮储能系统,开展了轴系动平衡、充放电、损耗和效率测试实验研究。采用高强度合金钢变截面飞轮存储动能,飞轮电机轴系为立式支撑结构,重型拼装永磁环轴承承担了97%的轴系重量。永磁电机转子采用格柵结构硅钢内嵌磁钢,以实现较高速度安全运转。基于大容量功率电子变换和电机控制技术,开发了100～300 kW充电、500～1 000 kW放电的控制电路硬件和软件,充电过程中采用了弱磁、转速和电流的双闭环控制策略,放电过程中采用电压闭环和电流前馈控制策略。动平衡后飞轮储能机组振动减少为0.07 mm以内。飞轮储能电源充放电循环效率达到86%～88%。

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	戴兴建
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关键词 ：飞轮储能, 机械设计, 功率电子, 电机控制

Abstract：

The balancing on the shaft of flywheel-motor,the charging/discharging experiments,loss and efficiency testing was carried out on a 1 MW/60 MJ flywheel energy storage power system developed for the hybrid power system of an oil drill rig.The kinetic energy with 60 MJ was stored by a high strength alloy steel flywheel with variable-cross-section.The permanent magnetic bearing bore 97% of weight of the vertical shaft of the flywheel and motor.The permanent magnets were imbedded in the rotor laminated of silicon-steel sheets with grille structure for safe rotationat high speeds.The control hardware and software was developed for the charging in power of 100-300 kW and discharging in power of 500-1 000 kW.Control strategies such as flux-weakening,double closed-loop of speed and current,voltage closed-loop and current feedforwardwere used in the charging and discharging of the permanent magnet motor.The vibration displacement was decreased to lower than 0.07 mm after field balancing on the flywheel-motor bearing system.The energy storage efficiency is 86-88% in one charging/discharging cycle in the running of the flywheel energy storage system.

Key words： Flywheel energy storage mechanical design power electronics motor control

收稿日期: 2016-09-18 出版日期: 2017-11-10

PACS:

TM315

基金资助:

国家科技支撑计划资助项目(2014BAA04B02)。

通讯作者: 戴兴建男,1970年生,副研究员,博士生导师,研究方向为飞轮储能技术和高速旋转机械。E-mail:daixj@mail.tsinghua.edu.cn

作者简介: 姜新建男,1966年生,副教授,研究方向为电机控制和电力电子。E-mail:jiangxj@mail.tsinghua.edu.cn

引用本文:

戴兴建, 姜新建, 王秋楠, 汪勇, 王善铭. 1 MW/60 MJ飞轮储能系统设计与实验研究[J]. 电工技术学报, 2017, 32(21): 169-175. Dai Xingjian, Jiang Xinjian, Wang Qiunan, Wang Yong, Wang Shanming. The Design and Testing of a 1 MW/60 MJ Flywheel Energy Storage Power System. Transactions of China Electrotechnical Society, 2017, 32(21): 169-175.

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https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.161486 https://dgjsxb.ces-transaction.com/CN/Y2017/V32/I21/169

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