三维理论刻度曲线在灰棒功率负荷曲线试验中的应用

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Application of Three-Dimensional Theoretical Calibration Curve at Grey Rod-Turbine Load Test

Daya Bay Nuclear Power Operation and Management Co. Ltd., Shenzhen, Guangdong, 518124, China

摘要: 大亚湾和岭澳核电站的定期试验规程规定:在机组启动后,要完成一次灰棒功率负荷曲线试验(RGL4试验)。试验的内容是通过快速降负荷来校核事先输入的功率棒棒位与汽轮机负荷的对应关系曲线。大亚湾核电站两台机组在进入18个月换料之后,原来用一维程序计算的刻度曲线出现了越来越大的偏差。本文提出用三维程序代替一维程序来计算刻度曲线,并证明了三维的刻度曲线与现场试验结果吻合很好。
- 灰棒 /
- 功率负荷 /
- 刻度曲线 /
- 一维程序 /
- 三维程序 /
- 过热度
Abstract: At Daya Bay and Ling’ao nuclear power stations,the present periodical test procedure stipulates: Grey rod-turbine load test is to be performed to verify the accuracy of calibration curve by quickly reducing the power.As Daya Bay nuclear power station has entered the 18-month fuel cycle,the bias of calibration curve from 1D code is growing larger.In this paper,a new solution of 3D methodology has been presented and the efficiency has been demonstrated through the comparison with the site test.
- Grey rod /
- Power load /
- Calibration curve /
- 1D code /
- 3D code /
- Overheating degree