CAJ | 학술논문

谐波电压水平是衡量供电质量的主要指标之一,多以GB/T 14549-93中的谐波电压限值作为评判依据.通过整理大量的现场实测数据,以总谐波畸变率为例,从3方面考察谐波电压限值的合理性.分析结果表明,我国各电压等级的谐波电压水平大体可控制在现行国标的限值之内,各重点行业的超标谐波源经治理后、谐波水平可降低到现行国标的限值之内并具有节能效益,尽管在一些地区电铁谐波水平较高,超出现行国标限值,但经过治理可降低到国标限值之内.
해파전압수평시형량공전질량적주요지표지일,다이GB/T 14549-93중적해파전압한치작위평판의거.통과정리대량적현장실측수거,이총해파기변솔위례,종3방면고찰해파전압한치적합이성.분석결과표명,아국각전압등급적해파전압수평대체가공제재현행국표적한치지내,각중점행업적초표해파원경치리후、해파수평가강저도현행국표적한치지내병구유절능효익,진관재일사지구전철해파수평교고,초출현행국표한치,단경과치리가강저도국표한치지내.
The harmonic voltage is one of the important indexes to evaluate the supply quality, and the harmonic voltage value in GB/T 14549-93 is a common threshold. The total harmonic distortion rate as an example, the rationality of harmonic voltage threshold was evaluated from three aspects. The experimental results show that nearly all harmonic voltage level in our country can be controlled according to current GB standard. Over limited harmonic power can be decreased within the GB standard limitation for energy saving after management. Furthermore, the harmonic voltage of electrified railway can be managed to the limitation of GB standard although it is higher in some areas.