CAJ | 학술논문

时分割乘法器是模拟式电子式电能表的重要组成部分，也是电能表计量误差的最主要来源。文中对时分割乘法器在谐波条件下的计量误差进行了定量的研究与分析，根据时分割乘法器的工作原理，推导出其在谐波条件下计量误差的理论表达式，并通过仿真计算验证了计量误差量化表达式的准确性。从计量准确性和成本角度综合比较了时分割乘法器电能表与数字式电子式电能表。最后，对谐波电能计量的合理性进行了探讨。为定量化分析谐波条件下计量系统的误差提供了理论依据，对于适用于谐波条件下计量的电子式电能表的设计具有参考价值。
시분할승법기시모의식전자식전능표적중요조성부분，야시전능표계량오차적최주요래원。문중대시분할승법기재해파조건하적계량오차진행료정량적연구여분석，근거시분할승법기적공작원리，추도출기재해파조건하계량오차적이론표체식，병통과방진계산험증료계량오차양화표체식적준학성。종계량준학성화성본각도종합비교료시분할승법기전능표여수자식전자식전능표。최후，대해파전능계량적합이성진행료탐토。위정양화분석해파조건하계량계통적오차제공료이론의거，대우괄용우해파조건하계량적전자식전능표적설계구유삼고개치。
The time division multiplier (TDM) is an important part of the analog electronic energy meter and also the all-important source of measuring errors.This paper performs quantitative research and analysis on measuring errors with TDM under harmonic conditions.According to the working principle of TDM,the theoretical expression for measuring errors under harmonic conditions is deduced.The correctness of the proposed theoretical expressions is validated through simulation calculations.The TDM energy meter is comprehensively compared with the digital electronic energy meter in terms of the measuring accuracy and cost.Finally,the measuring rationality of electric energy in the harmonic background is discussed. This paper provides a theoretical basis for the quantitative analysis of the error of the measuring system and can be used as a reference for designing electronic energy meters applicable to measurement under harmonic conditions. This work is supported by National Natural Science Foundation of China(No.51007065).