AP1000核电机组10 kV中压电动机温度测量与保护方案

电力建设 ›› 2013, Vol. 34 ›› Issue (7): 85-88.

AP1000核电机组10 kV中压电动机温度测量与保护方案

肖长歌1，卓德勇2，吴超峰2

1.国核电力规划设计研究院，北京市 100095;2.华电滕州新源热电有限公司，山东省滕州市 277500

出版日期:2013-07-01
作者简介:肖长歌（1979），男，硕士，工程师，从事核动力发电厂常规岛仪表与控制系统设计工作，E-mail：xiaochangge@snpdri.com。

Temperature Measurement and Protection Scheme of 10 kV Medium-Voltage Motor for AP1000 Nuclear Power Unit

XIAO Changge1， ZHUO Deyong2, WU Chaofeng2

1.State Nuclear Electric Power Planning Design & Research Institute, Beijing 100095, China; 2.Huadian Tengzhou Xinyuan Thermal Power Co., Ltd., Tengzhou 277500, Shandong Province, China

Online:2013-07-01

摘要/Abstract

摘要：

作为核电站的重要设备，10 kV中压电动机对核电厂的安全运行具有重要作用。在AP1000核电站的标准设计中，10 kV中压电动机的温度监视和保护策略的设计与我国已有核电站及常规火电站的设计有较大差别，需要对其进一步论证。从技术先进性、可靠性、经济性等几方面，基于控制系统的过程控制器（distributed processing unit，DPU）、I/O模件、Modbus通讯网络、开关柜SEL-710和SEL-2600等关键部件，对10 kV电动机温度控制和保护方案进行了讨论，得出如下结论：在实时性和可靠性方面，中压电动机温度测量和保护的常规方案和AP1000标准设计方案都满足相关要求；在技术经济方面，AP1000标准设计方案要明显优于常规方案；在具体工程中，设计方和用户可根据设计理念和运行检修习惯选择方案。

关键词: 10 kV电动机, Modbus通讯网络, 温度测量, 温度保护, 开关柜

Abstract:

As the critical equipment of nuclear power plant, 10 kV medium-voltage motor plays a significant role in the safe operation of nuclear power plant. In the standard design of AP1000 nuclear power plant, the design of temperature monitoring and protection strategy for 10 kV medium-voltage motor is rather different in existed nuclear power plants from that in conventional thermal power plants in China, which demands further discussion. From the aspects of advancement, reliability and economic efficiency of the components, the temperature control and protection scheme of 10 kV motor were discussed for some critical components such as distributed processing unit (DPU), I/O module, Modbus communication, SEL－710 and SEL－2600. The results have shown that, the conventional scheme AP1000 standard design scheme for temperature measurement and protection for medium-voltage motor both meet the relevant requirements in the aspects of real time and reliability. Specifically, in the aspects of technology and economy, the scheme of AP1000 standard design is much better than the conventional scheme. The designer and customer can choose the temperature control and protection scheme for medium-voltage motor according to the design concept and the mode of operation and maintenance.

Key words: 10 kV motor, Modbus communication network, temperature measurement, temperature protection, switchgear

肖长歌，卓德勇，吴超峰. AP1000核电机组10 kV中压电动机温度测量与保护方案[J]. 电力建设, 2013, 34(7): 85-88.

XIAO Changge， ZHUO Deyong, WU Chaofeng. Temperature Measurement and Protection Scheme of 10 kV Medium-Voltage Motor for AP1000 Nuclear Power Unit[J]. ELECTRIC POWER CONSTRUCTION, 2013, 34(7): 85-88.

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