利用多转换 UPQC 设备改善多并联馈线配电系统 PQ 的新方法

Moturu Seshu, P. K. Sundaram, Maddukuri Venkata Ramesh
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引用次数: 0

摘要

在当前形势下,自动化工业、电弧炉和可调速驱动器中都使用了非线性电力电子设备。大型非线性负载的特性会造成谐波污染、电压中断和电压骤降/骤升问题,这是现代多并联馈线配电网络的主要问题。在上述几种缓解技术中,多路可转换通用电能质量调节器性能可靠、运行稳健,还能相应地缓解电流-电压相关的电能质量(PQ)问题。多路可转换通用电能质量调节器(Mcon-UPQC)装置通过采用可行的控制算法提取偏差的电源电压和畸变的负载电流来缓解电能质量问题。但是,计算延迟、复杂的数学变换和响应延迟是传统控制算法的主要问题。本研究提出了一种新颖的通用矢量参考控制算法,用于提取基本参考电压电流信号。使用 MATLAB-Simulink 计算工具验证了所提出的 Mcon-UPQC 设备控制算法的性能和有效性,并对模拟结果进行了有效比较。
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A novel PQ improvement in multi-parallel feeder distribution system using multi-convertible UPQC device
In the current situation, the use of non-linear power electronic devices in automated industries, arc-furnaces, and adjustable speed drives. The nature of large-sized non-linear loads causes harmonic pollution, voltage interruptions, and voltage sag/swell issues, which are the main issues in modern multi-parallel feeder distribution network. Several mitigation techniques among the above, the multi-convertible universal power-quality conditioner has reliable performance, robust operation and also mitigation of both current-voltage allied power quality (PQ) issues accordingly. The multi-convertible universal power-quality conditioner (Mcon-UPQC) device mitigates power-quality issues by extracting deviated supply voltage and distorted load current by using feasible control algorithm. But, the computational delay, complex mathematical transformation and response delay are the major problem identified in conventional control algorithms. In this work, a novel generalized vector reference control algorithm has been proposed for extraction of fundamental reference voltage-current signals. The performance and effectiveness of proposed control algorithm of Mcon-UPQC device is validated by using MATLAB-Simulink computing tool, simulated outcomes are illustrated with valid comparisons.
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