核电厂数字化反应堆保护系统T2响应时间分析及测试

T2 Response Time Analysis and Test of Nuclear Power Plant Reactor Protection System

反应堆保护系统是核电厂数字化仪表控制系统中重要的安全系统,是DCS的重要组成部分。为了核电站的安全,对保护系统的响应时间有严格的要求,有必要对响应时间进行评价,本文简要介绍了核电站反应堆保护系统的结构,给出了T2响应时间测试范围,并对反应堆保护系统的响应时间进行理论分析,给出了T2响应时间测试方法,建立了响应时间测试原理,介绍了VP Link作为测试装置如何进行响应时间测试。以某核电厂1&2机组的SG1水位低低导致紧急停堆响应时间测试工况为例,详细介绍了实际响应时间测试工作,给出了响应时间测试的输出文件清单,并对测试结果进行记录和分析。

Reactor Protection System is very important safety system for nuclear power plant DCS I＆C system. For the safety of nuclear power plant, the response time of RPS has the strict requisition, ,therefore it is necessary to evaluate the response time of RPS. In this paper the structure of nuclear power plant reactor protection system is briefly introduced, the scope of T2 response time test is given, and theoretical analysis of the response time of RPS is conducted. Test method for T2 response time is proposed, test principle ofT2 Response time is established. How to test the response time is also introduced by using the VP link as the test devices. By taking the conditions for response time test of reactor trip due to SG1 Low-Low level of NPP Unit l＆2 as example, the actual response time executed in project is introduced in detail, then the test document about response time test is output, and the test result is recorded and analyzed.