| 水轮机调速器的PLC测频方法 |
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| 引用本文： | 魏守平,罗萍.水轮机调速器的PLC测频方法[J].水电能源科学,2000,18(4):31-33. |
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| 作者姓名： | 魏守平 罗萍 |
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| 作者单位： | 1. 华中科技大学,水利水电及自动化工程系,湖北,武汉,430074
2. 武汉三联水电控制设备公司,湖北,武汉,430011 |
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| 摘 要： | 介绍一种在水轮机调速器中实现频率测量的新方案，该方案不需要单片机，也不需ＰＬＣ的高速计数模块，它是利用ＰＬＣ基本单元的中断功能、内藏的高速计数器及相应的外围电路得以实现，从而既提高了调速器的可靠性，又降低了其成本。
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| 关 键 词： | 调速器 频率测量PLC 水轮机 频率测量 |
| 修稿时间： | 2000-08-13 |
PLC Frequency Measurement of Hydro Turbine Governor |
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| WEI Shou-ping,LUO Ping.PLC Frequency Measurement of Hydro Turbine Governor[J].International Journal Hydroelectric Energy,2000,18(4):31-33. |
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| Authors: | WEI Shou-ping LUO Ping |
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| Abstract: | A new scheme of frequency measurement in hydro turbine governor is introduced in this paper. Instead using single chip computer or PLC high speed count module, it utilizes the interrupt functions and high speed counter in the PLC base unit and peripheral circuit. With enhanced reliability and reduced cost, the governor designed in this scheme shows good application prospect. |
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| Keywords: | hydro turbine governor frequency measurement PLC high speed count dynamic deviation static deviat$ |
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