摘要
仿真分析特定谐波消除脉宽调制方法变频试验电源的骚扰源特性,并进行误差分析,证明了特定谐波消除变频电源不会通过局部放电主回路干扰局部放电测试。采用Walsh变换将求解非线性超越方程组转化成求解线性代数方程组,实现了特定谐波消除技术在实时控制场合中的应用。
This paper presents the simulation analysis of disturbance source characteristics of the variable frequency power supply based on SHEPWM (selected harmonic elimination Pulse Width Modulation) technique. According to the simulation and its error analysis, this type of variable frequency power supply won't cause interference to the detection result of partial discharge experiment system, so its validity has been proved. To apply it in real-time control, Walsh transform converters nonlinear transcendental equations to linear algebraic ones.
出处
《电气技术》
2010年第4期6-9,14,共5页
Electrical Engineering
关键词
变频电源
骚扰源
特定谐波消除
WALSH变换
局部放电试验
variable frequency power supply
disturbance source
selected harmonic elimination
walsh transform
partial discharge experiment
