摘要
利用正弦函数和余弦函数的正交性求出基波参数,进而可测量出谐波电流和无功电流;利用正弦和余弦的对称性可减少计算量;用递推运算可进一步减少计算量。文中对方法进行了仿真,仿真表明该方法具有很高的精度。
Harmonics current and reactive current measurement are needed for APF. Fundmental parameters can be calculated by the orthonormal character of sine function and cosine function, harmonics current and reactive current can also be measured. Calculation can be decreased by the symmetry of the sine function and cosine function, as well as the step operation. Simulation shows that the method has high precision.
出处
《电测与仪表》
北大核心
2006年第4期15-18,共4页
Electrical Measurement & Instrumentation
基金
安徽省科技厅自然科学研究资助项目(04022003)
安徽省教育厅自然科学研究资助项目(2004KJ012)
安徽大学211工程学术创新团队资助
关键词
基波参数
谐波电流
无功电流
测量
fundmental parameters
harmonics current
reactive current
measurement
