中国电力 ›› 2015, Vol. 48 ›› Issue (4): 147-150.DOI: 10.11930.2015.4.147

• 电网 • 上一篇    下一篇

孤网运行中数模联合电液控制系统

田军1,武天明1,谢国强1,王军祥1,李明俊2,李波2   

  1. 1. 重庆旗能电铝有限公司,重庆 400020;
    2. 重庆浦仁达科技有限公司,重庆 400020
  • 收稿日期:2014-11-29 出版日期:2015-04-25 发布日期:2015-12-03
  • 作者简介:田军(1964—),男,重庆人,MBA,高级经济师,从事电厂、铝厂运行和控制研究和管理工作。E-mail: cqtianjun-1@vip.sina.com

Digital & Analog Electro-Hydraulic Control System in Isolated Grid

TIAN Jun1, WU Tianming1, XIE Guoqiang1, WANG Junxiang1, LI Mingjun2, LI Bo2   

  1. 1. Chonging Qineng Electricity & Aluminum Co., Ltd., Chongqing 400020, China;
    2. Chongqing PRD Technology Co., Ltd., Chongqing 400020, China
  • Received:2014-11-29 Online:2015-04-25 Published:2015-12-03

摘要: 分析了汽轮发电机在孤网运行中一次调频、二次调频的特性和关系,研究一种数模联合电液控制系统,通过一次调频卡、阀门曲线卡实现快速硬件调频,提高一次调频响应速度和稳定性,缩短频率调整周期。阐述了系统硬件、软件特征,取消一次调频死区。设置硬件一次调频回路与软件二次调频联合控制,在实际应用中被证明是可行的。

关键词: 孤网, 一次调频, 二次调频, DEH, 控制系统, 汽轮机

Abstract: The paper analyzes the characteristics and relations of primary frequency modulation and secondary frequency modulation of steam turbines in isolated grid. A digital & analog electro-hydraulic control system is researched, which, through the primary frequency modulation module and valve curve module, can realize the quick hardware frequency modulation, improve the response speed and stability of the primary frequency modulation and reduce the frequency adjustment period. The hardware and software features of the system is described and the dead band of primary frequency modulation is canceled. It is proved in practice that the united control system of hardware primary frequency modulation and software secondary frequency modulation is feasible.

Key words: isolated grid, primary frequency modulation, secondary frequency modulation, DEH, control system, steam turbine

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