针对产业功能整体性能提升的蓄电池高次谐波优化研究

电子设备在新技术的推动下,不断创新发展,并且在人们的生活中获得广泛应用,但是电子设备在使用期间产生的高次电流谐波,对供电电网产生的影响较大,使供电变压器严重发热,电容器及电力电缆等设备的运行损耗增加。不仅严重影响到电网的安全可靠运行,还增加了蓄电池企业能源资源消耗量,造成变压器容量下降。为此国家技术监督局特制定了《电能质量、公用电网谐波--GB/T 14549—93》标准。本文从蓄电池高次谐波优化处理的角度出发,探究控制产业功耗的方法。首先分析谐波,得到电容存在放大谐波电流的特点,并受到串、并联谐振影响。其次探究谐波处理方式,并设计布控方案,最后从实际案例应用角度出发,归纳出蓄电池高次谐波优化处理的效益。通过本文的研究,可以为相关研究人员提供产业功耗优化建议,控制成本支出,取得良好的经济效益和社会效益。

An accurate calculation method of the power harmonic parameters based on the delay time theorem of Fourier transform

A new accurate calculation method of electric power harmonic parameters was presented. Based on the delay time theorem of Fourier transform, the frequency of the electric power was calculated, and then, suing interpolation in the frequency domain of the windows, the parameters （amplitude and phase） of each harmonic frequency signals were calculated accurately. In the paper, the effect of the delay time and the windows on the electric power harmonic calculation accuracy was analysed. The digital simulation and the physical measurement tests show that the proposed method is effective and has more advantages than other methods which are based on multipoint interpolation especially in calculation time cost; therefore, it is very suitable to be used in the single chip DSP micro-processor.