基于混合量热原理的新型接地装置比热容测试研究

Study on Specific Heat Capacity Test of New Grounding Device Based on Mixed Calorimetry Principle

为了提高新型接地装置比热容测试的准确性,提出基于混合量热原理的新型接地装置比热容测试方法。分析新型接地装置比热容测试过程中的混合热量参数,构建新型接地装置比热容测试约束参数模型,提取新型接地装置的比热容绝缘性能测试参量,在新型接地装置的两端施加交流电压,采用混合量热原理分析的方法,分析空间电荷所引起的比热容差异性,计算静态介电常数和光频介电系数,实现新型接地装置比热容参数测试和量化评估。仿真结果表明,采用该方法实现新型接地装置比热容测试的准确性得到保证,提高了新型接地装置的输出稳定性。

In order to improve the accuracy of the specific heat capacity test of the new grounding device,a new specific heat capacity test method based on the principle of mixed calorimetry is proposed.The mixed heat parameters is analyzed in the process of the specific heat capacity test of the new grounding device,constructs the constraint parameter model of the specific heat capacity test of the new grounding device,extracts the specific heat capacity and insulation performance test parameters of the new grounding device,applies AC voltage at both ends of the new grounding device,and analyzes the specific heat tolerance caused by space charge and calculates the static state State dielectric constant and optical frequency dielectric coefficient are used to test and evaluate the specific heat capacity parameters of the new grounding device.The simulation results show that the accuracy of the specific heat capacity test of the new grounding device is guaranteed,and the output stability of the new grounding device is improved.