| 马 烨,宋晓林,孙 刚,曹刘炎,曾翔君.基于脉冲虚功率源的直流电能表误差计量研究[J].电子测量与仪器学报,2021,35(12):189-197 |
| 基于脉冲虚功率源的直流电能表误差计量研究 |
| Research on error measurement of DC electric energymeter based on pulse virtual power source |
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| DOI： |
| 中文关键词: 直流电能计量 动态变化功率 脉冲虚功率 误差 |
| 英文关键词:DC energy metering dynamically changing power pulse virtual power error |
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| 摘要点击次数: 1584 |
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| 中文摘要: |
| 当前对直流电能表的检定忽略了功率的动态变化对计量结果的影响,缺少非理想直流电能计量标准。 为此,提出一种
使用脉冲虚功率源检定直流电能表的方法,该法通过将脉冲虚功率施加给被检表对比输出电能和被检表测得电能得到误差,且
实现了输出电能的量值溯源,基于该法研制校验装置样机,通过检定和实验计算出了仪器输出电能的误差,并对市面上现有直
流电能表进行测试,结合测试结果和算法仿真结果分析了动态变化功率对直流电能计量的影响。 结果表明,脉冲虚功率源法能
够用于建立直流电能计量标准,实现动态变化功率下直流电能表的检定。 |
| 英文摘要: |
| The current verification of DC energy meters ignores the impact of dynamic changes in power on the measurement results, and
lacks DC energy metering standards under non-ideal conditions. For this reason, proposed a method of using pulse virtual power source
to calibrate DC electric energy meters. This method applies pulsed virtual power to the tested meter, and obtains the error by comparing
the output electric energy with the electric energy measured by the tested meter. It realizes the traceability of the value of the output
electric energy. Based on this method, developed a calibration device, and calculated the error of the instrument’s output energy through
verification and experiments. Using this device to test the existing DC electric energy meters on the market, and the influence of the
dynamic change of power on the DC electric energy measurement is analyzed by combining the test results and the algorithm simulation
results. The results show that the pulse virtual power source method can be used to establish DC electric energy metering standards and
realize the verification of DC electric energy meters under dynamic power changes. |
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