基于微控制器的事实设备实施

V. C. Madueme, A. O. Ekwue, E. C. Ejiogu, V. O. Ajah
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引用次数: 0

摘要

在电力系统中,电压控制、功率因数改善和无功功率管理的重要性怎么强调都不为过。在尼日利亚等发展中国家,电力系统的运行制约因素主要是电能质量差、电压波动和电能损耗增加等。此外,这些频繁的系统干扰也是造成电力系统不可靠的原因之一。本文研究了晶闸管开关电容器-晶闸管控制电抗器(TSC-TCR)、静态电压-安培反应控制器(SVC)、柔性交流输电系统(FACTS)设备,作为缓解尼日利亚电网热和电压问题的解决方案。使用 Proteus 软件设计了一个基于微控制器的 SVC 原型,并在实验室环境中使用本地可用的分立电子元件进行了实施,以实现基于分布式无功功率控制的负载功率因数校正。微控制器负责执行两个分支的逻辑控制方案,并计算负载位移功率因数(PFD)。结果发现,在感性负载下,SVC 可将功率因数从 0.67 显著提高到 0.97,从而将 PFD 提高了 44.78%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Microcontroller-based facts devices implementation
In power systems, the case of voltage control, power factor improvement and reactive power management cannot be over-emphasized. In developing countries such as Nigeria, the electricity power system is characterized by operational constraints which are predominantly poor power quality, voltage fluctuations and increased power losses among others. Furthermore, these frequent system disturbances contribute to the unreliability of such power system. This paper looks at the thyristor-switched capacitor- thyristor-controlled reactor (TSC-TCR), static volt-ampere-reactive controller (SVC), a flexible alternating current transmission system (FACTS) device as a solution to mitigate the thermal and voltage problems associated with the Nigerian network. A microcontroller-based SVC prototype was designed in Proteus software and implemented in a laboratory environment using locally available discrete electronic components for load power factor correction based on distributed reactive power control. The microcontroller was in charge of carrying out the logic control scheme for the two branches and computing the load displacement power factor (PFD). The SVC was found to improve the PFD by 44.78% under inductive loading where the power factor increased significantly from 0.67 to 0.97.
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来源期刊
CiteScore
0.10
自引率
0.00%
发文量
126
审稿时长
11 weeks
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