| 引用本文: | 翟亚芳,吴战伟,秦长海.风电场箱式升压变压器低压侧微机保护装置的研制[J].电力系统保护与控制,2013,41(21):136-140. |
| ZHAI Ya-fang,WU Zhan-wei,QIN Chang-hai.Development of microcomputer protection device for the low-side of box-type step-up transformer in wind farm[J].Power System Protection and Control,2013,41(21):136-140 |
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| 摘要: |
| 介绍了一种风电场箱式升压变压器低压侧微机保护装置的研制过程。重点介绍了保护装置的总体结构和工作原理，给出了信号调理电路、开关量输入/输出电路和通信接口电路的设计原理图，并分析了定时限过流保护、反时限过流保护、低电压保护的工作原理，最后给出了保护装置的软件设计方法和部分测试数据。该保护装置具有三相电压、三相电流、有功功率、无功功率、功率因数等参数的采集、非电量保护、远程控制和通信功能，可以完成对风电场箱式升压变压器低压侧的测量、保护和控制任务。 |
| 关键词: 风电场 升压变压器 微机保护 过流保护 低电压保护 |
| DOI：10.7667/j.issn.1674-3415.2013.21.022 |
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| Development of microcomputer protection device for the low-side of box-type step-up transformer in wind farm |
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ZHAI Ya-fang,WU Zhan-wei,QIN Chang-hai
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| Abstract: |
| The development of microcomputer protection device for the low-side of box-type step-up transformer in wind farm is introduced. The overall structure and the operating principle are discussed and the schematic of signal modulated circuit, switch signal input/output, and communication interface are given. This paper analyzes the operating principle of specified time over-current protection, inverse time over-current protection and low voltage protection, describes the software design methods and provides test data of the protection device. The protection device has the functions of collecting parameters of three-phase voltage, three-phase current, active power, reactive power, and power factor, non-electricity protection, remote control, and communication. It can realize such tasks as measuring, protecting and controlling for the low-side of box-type step-up transformer in wind farm. |
| Key words: wind farm step-up transformer microcomputer protection over current protection low voltage protection |
