高压直流线路6脉冲整流器的建模与分析

2015 International Conference on Power and Advanced Control Engineering (ICPACE) Pub Date : 2015-09-24 DOI:10.1109/ICPACE.2015.7274971

B. Madhu, M. Dinesh

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引用次数: 2

摘要

本文介绍了单极直流线路6脉冲控制整流电路的微型硬件模型。可控整流器与PIC (16F72)微控制器接口，用于产生各种发射角度。用数字示波器记录了输出电压，并与不同发射角度下的理论值进行了比较。通过改变发射角，获得了R和RL负载下电压纹波、纹波百分比、带低通滤波器和不带低通滤波器的谐波等性能分析参数。结果表明，低通滤波器的加入大大降低了纹波因子和纹波百分比，并使数字示波器中观察到的直流输出电压平滑。R负载(发射角α= 90°)纹波减小92%，RL负载(发射角α= 90°)纹波减小60%。

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Modeling and analysis of 6 pulse rectifier used in HVDC link

This paper presents miniature hardware model of 6 pulse controlled rectifier circuit for a monopolar HVDC link. The Controlled rectifier is interfaced with PIC (16F72) microcontroller for generating various firing angles. The results of output voltage are recorded using digital oscilloscope and are compared with the theoretical values at different firing angles. Performance analysis parameters such as voltage ripple, ripple percentage, harmonics with and without low pass filter for R and RL load is obtained by varying the firing angle. Results show that the ripple factor and ripple percentage has drastically reduced with the addition of the low pass filter and also smoothens the DC output voltage which were observed in digital oscilloscope. There has been a reduction of 92% ripple for R load and 60% for RL load (for firing angle α= 90°).

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2015 International Conference on Power and Advanced Control Engineering (ICPACE)

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