ABB UNITROL 6800励磁系统实测建模研究

doi:10.11930/j.issn.1004-9649.201703046

中国电力 ›› 2018, Vol. 51 ›› Issue (7): 61-67.DOI: 10.11930/j.issn.1004-9649.201703046

ABB UNITROL 6800励磁系统实测建模研究

江伟

国网福建省电力有限公司电力科学研究院, 福建福州 350007

收稿日期:2017-03-23 修回日期:2018-03-14 出版日期:2018-07-05 发布日期:2018-07-31
作者简介:江伟(1974-),男,博士,高级工程师,从事励磁建模、机网协调、电力系统安全性与稳定性方面的研究工作,E-mail:jiangwei_8848@sina.com
基金资助:
福建省政府科技项目（2015H0023）；国网福建省电力公司科技项目（52130417000J）。

Study on ABB UNITROL 6800 Excitation System Field Test and Modeling

JIANG Wei

State Grid Fujian Electric Power Research Institute, Fuzhou 350007, China

Received:2017-03-23 Revised:2018-03-14 Online:2018-07-05 Published:2018-07-31
Supported by:
This work is supported by the Science and Technology Project of Fujian Provincial People's Government (No.2015H0023) and the Science and Technology Project of State Grid Fujian Electric Power Company (No.52130417000J).

摘要/Abstract

摘要： 针对ABBUNITROL6800励磁系统机电暂态稳定仿真建模问题，提出一种计及晶闸管移相触发功率放大环节影响的发电机励磁系统详细数学模型，推导了UNITROL6800励磁系统开环增益的理论计算公式，并提出基于小阶跃法的励磁系统开环稳态增益实测验证方法。通过现场实际机组励磁试验验证表明，系统移相触发功率放大环节增益与气隙磁场电流设置有关并与晶闸管阳极电压有效值成正比。

关键词: UNITROL 6800, 励磁建模, 余弦移相, 开环稳态增益

Abstract: An exact mathematic model of generator excitation system is proposed for ABB UNITROL 6800 excitation system transient stability simulation, which considers the gain error caused by thyristor phase-shifting. In addition, a field test method based on small signal step is proposed to measure the open-loop static gains of excitation systems. A formula is also given to calculate this gain. An actual generator excitation field test shows that the gain of the UNITROL 6800 excitation system caused by phase-shifting is related to the set of air gap magnetic field current, and is proportional to the voltage magnitude of the thyristor anode.

Key words: UNITROL 6800, excitation system modeling, cosine phase-shift, open-loop static gain

中图分类号:

TM761⁺.11

江伟. ABB UNITROL 6800励磁系统实测建模研究[J]. 中国电力, 2018, 51(7): 61-67.

JIANG Wei. Study on ABB UNITROL 6800 Excitation System Field Test and Modeling[J]. Electric Power, 2018, 51(7): 61-67.

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https://www.electricpower.com.cn/CN/Y2018/V51/I7/61

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ABB UNITROL 6800励磁系统实测建模研究

Study on ABB UNITROL 6800 Excitation System Field Test and Modeling

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