资料下载
×
基于DFT谐波检测的无功补偿系统设计
消耗积分:5 |
格式:rar |
大小:203 |
2009-08-15
李鸿洋
分享资料个
电网中的主要设备都是感性负载,这就要求电源必须提供无功功率。本文论述了一种
DSP 控制的新型固态无功功率补偿器,它基于离散傅立叶变换(DFT)的谐波检测方法。该系统采用自身控制的直流电压供电方式,其无功功率的补偿是靠DSP 控制逆变器的输出以一个固定的开关频率跟踪一个正弦参考波形而实现的,从而使用户侧的功率因数接近为1,同时极大地抑制了高次谐波,实验结果证明了理论分析的正确性。
关键字: DSP; 离散傅立叶变换; 功率补偿
Abstract: A new Solid-State Var Compensator controlled by DSP is analyzed in this paper, which is based on the DFT (Discrete Fourier Transform) detection method. It uses a self-controlled DC bus. Reactive power compensation is achieved by forcing the inverter output current to follow a sinusoidal waveform at a constant switching frequency. Thus enable the power factor of the user side to approach one; it also has suppressed the higher harmonic .The experimental result has proven the theoretical analysis accuracy.
Keywords: DSP; Discrete Fourier Transform; Var Compensator
DSP 控制的新型固态无功功率补偿器,它基于离散傅立叶变换(DFT)的谐波检测方法。该系统采用自身控制的直流电压供电方式,其无功功率的补偿是靠DSP 控制逆变器的输出以一个固定的开关频率跟踪一个正弦参考波形而实现的,从而使用户侧的功率因数接近为1,同时极大地抑制了高次谐波,实验结果证明了理论分析的正确性。
关键字: DSP; 离散傅立叶变换; 功率补偿
Abstract: A new Solid-State Var Compensator controlled by DSP is analyzed in this paper, which is based on the DFT (Discrete Fourier Transform) detection method. It uses a self-controlled DC bus. Reactive power compensation is achieved by forcing the inverter output current to follow a sinusoidal waveform at a constant switching frequency. Thus enable the power factor of the user side to approach one; it also has suppressed the higher harmonic .The experimental result has proven the theoretical analysis accuracy.
Keywords: DSP; Discrete Fourier Transform; Var Compensator
声明：本文内容及配图由入驻作者撰写或者入驻合作网站授权转载。文章观点仅代表作者本人，不代表电子发烧友网立场。文章及其配图仅供工程师学习之用，如有内容侵权或者其他违规问题，请联系本站处理。 举报投诉
评论(0)
发评论
- 相关下载
- 相关文章
