电力系统自动化
電力繫統自動化
전력계통자동화
AUTOMATION OF ELECTRIC POWER SYSTEMS
2015年
13期
144-150
,共7页
杨金涛%乐健%汪妮%刘开培
楊金濤%樂健%汪妮%劉開培
양금도%악건%왕니%류개배
电能计量%谐波%电能表%电容式电压互感器%电磁式电流互感器
電能計量%諧波%電能錶%電容式電壓互感器%電磁式電流互感器
전능계량%해파%전능표%전용식전압호감기%전자식전류호감기
electric energy measurement%harmonics%watt-hour meter%capacitive voltage transformer%electromagnetic current transformer
电能计量系统由电能表、电压互感器与电流互感器三部分构成,谐波条件下这三部分的误差都将影响电能计量系统的整体计量误差。针对谐波条件下电力计量系统的计量准确性开展了研究,分别建立了谐波条件下电子式电能表、电容式电压互感器和电磁式电流互感器的谐波等效电路,分析了各自的谐波计量/测量误差及影响因素,并搭建了整个电能计量系统的模型,分析了其在谐波条件下的计量误差。通过对某具体电能计量系统的仿真分析,研究了谐波对电能计量系统影响的经济性。所研究内容为量化分析计量系统在谐波条件下的误差提供了参考。
電能計量繫統由電能錶、電壓互感器與電流互感器三部分構成,諧波條件下這三部分的誤差都將影響電能計量繫統的整體計量誤差。針對諧波條件下電力計量繫統的計量準確性開展瞭研究,分彆建立瞭諧波條件下電子式電能錶、電容式電壓互感器和電磁式電流互感器的諧波等效電路,分析瞭各自的諧波計量/測量誤差及影響因素,併搭建瞭整箇電能計量繫統的模型,分析瞭其在諧波條件下的計量誤差。通過對某具體電能計量繫統的倣真分析,研究瞭諧波對電能計量繫統影響的經濟性。所研究內容為量化分析計量繫統在諧波條件下的誤差提供瞭參攷。
전능계량계통유전능표、전압호감기여전류호감기삼부분구성,해파조건하저삼부분적오차도장영향전능계량계통적정체계량오차。침대해파조건하전력계량계통적계량준학성개전료연구,분별건립료해파조건하전자식전능표、전용식전압호감기화전자식전류호감기적해파등효전로,분석료각자적해파계량/측량오차급영향인소,병탑건료정개전능계량계통적모형,분석료기재해파조건하적계량오차。통과대모구체전능계량계통적방진분석,연구료해파대전능계량계통영향적경제성。소연구내용위양화분석계량계통재해파조건하적오차제공료삼고。
The electric energy metering system consists of a watt-hour meter,a voltage transformer and a current transformer. Hence,the errors of an electric energy metering system should emanate from these parts.To achieve measuring accuracy of the power metering system under harmonic conditions,the equivalent circuits of the electronic watt-hour meter,capacitive voltage transformer and electromagnetic current transformer under harmonic conditions are built, and the harmonic measuring/metering errors and the influencing factors are analyzed.A model of the entire electric energy metering system is set up to analyze its errors under harmonic conditions.By analyzing and simulating an electric energy metering system,the economic influence of harmonics on the metering system is studied,providing a theoretical basis for quantitative analysis of measuring error in an energy metering system under harmonics. This work is supported by National Natural Science Foundation of China(No.51007065).