电力系统保护与控制
電力繫統保護與控製
전력계통보호여공제
POWER SYSTM PROTECTION AND CONTROL
2015年
15期
85-90
,共6页
IEC闪变仪%间谐波%调幅波%调制谐波%光通量
IEC閃變儀%間諧波%調幅波%調製諧波%光通量
IEC섬변의%간해파%조폭파%조제해파%광통량
IEC flickermeter%interharmonics%amplitude modulation voltage%modulated harmonic%luminous flux
传统IEC闪变仪在检测由间谐波引起的闪变的准确性上存在不足。针对IEC闪变仪的适用范围及间谐波引起的闪变算法进行了研究。通过搭建IEC闪变仪检测模型及光通量数学模型，测得调幅波和间谐波下的闪变测量值、光通量波动频率及波动值，对调幅波引起的闪变值和光通量数据进行多变量数据拟合，得到光通量与闪变之间的关系，并将其作为光通量与闪变之间的标准关系式。依据标准关系式探讨了IEC闪变仪在检测间谐波引起的闪变时的适用性，采用基于升-降采样及峰值检测相结合的方法，弥补了IEC闪变仪在检测由间谐波引起的闪变的不足。
傳統IEC閃變儀在檢測由間諧波引起的閃變的準確性上存在不足。針對IEC閃變儀的適用範圍及間諧波引起的閃變算法進行瞭研究。通過搭建IEC閃變儀檢測模型及光通量數學模型，測得調幅波和間諧波下的閃變測量值、光通量波動頻率及波動值，對調幅波引起的閃變值和光通量數據進行多變量數據擬閤，得到光通量與閃變之間的關繫，併將其作為光通量與閃變之間的標準關繫式。依據標準關繫式探討瞭IEC閃變儀在檢測間諧波引起的閃變時的適用性，採用基于升-降採樣及峰值檢測相結閤的方法，瀰補瞭IEC閃變儀在檢測由間諧波引起的閃變的不足。
전통IEC섬변의재검측유간해파인기적섬변적준학성상존재불족。침대IEC섬변의적괄용범위급간해파인기적섬변산법진행료연구。통과탑건IEC섬변의검측모형급광통량수학모형，측득조폭파화간해파하적섬변측량치、광통량파동빈솔급파동치，대조폭파인기적섬변치화광통량수거진행다변량수거의합，득도광통량여섬변지간적관계，병장기작위광통량여섬변지간적표준관계식。의거표준관계식탐토료IEC섬변의재검측간해파인기적섬변시적괄용성，채용기우승-강채양급봉치검측상결합적방법，미보료IEC섬변의재검측유간해파인기적섬변적불족。
There are some deficiencies of the IEC flickermeter used to detect flicker caused by interharmonic voltage. The effective frequency range of IEC flickermeter detection and the detection method of flicker caused by interharmonics are discussed. IEC flickermeter model and flux mathematical model are developed. The flux fluctuation frequency, flux fluctuation value and flicker value of amplitude modulation (AM) voltage and interharmonic can be obtained. The relationship between flux and flicker can be fitted on the basis of numerous data of AM voltage. The relationship is considered as a standard relationship, which is used to discuss the effective range of IEC flickermeter in regard to interharmonics. Furthermore a new approach, used to detect flicker caused by interharmonics, is presented.
