电网总谐波失真降低:基于UPQC的方法

2023 3rd International Conference on Robotics, Electrical and Signal Processing Techniques (ICREST) Pub Date : 2023-01-07 DOI:10.1109/ICREST57604.2023.10070091

B. B. Pathik, Sanjid Islam, Nuritriani Akram, Md. Salman Zaman, Md. Abdullah Al-Nahian

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引用次数: 1

摘要

本研究提出一种新的统一电能质量调节器(UPQC)设计，以改善电能质量。所设计的UPQC具有两个并联和串联组合的有源电力滤波器(APF)。脉宽调制(PWM)和迟滞控制是本研究中使用的两种控制机制。为了减少谐波，进行直接正交零(dq0)转换。在情形1中，对于单母线系统，无UPQC系统中源电流的总谐波失真(THD)为22.22%。采用设计的方法后，THD显著降低至2.68%。在案例2中，对于多母线系统，有UPQC和没有UPQC的THD分别为20.62%和5.05%。其中电网输入电压下的THD为20.62%，而输出电压为0.80%。本研究遵循IEEE 519-2014电气系统设计电压电流谐波失真判据标准。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Total Harmonic Distortion Reduction in a Power Grid: A UPQC Based Approach

This study shows a novel design for a unified power quality conditioner (UPQC) to improve the power quality. The designed UPQC has two active power filters (APF) in shunt and series combinations. PWM (pulse width modulation) and hysteresis controls are the two control mechanisms used in this study. To reduce harmonics, a direct-quadrature zero (dq0) conversion is performed. In case 1, for a single-bus system, the total harmonic distortion (THD) of the source current in the system without UPQC was 22.22%. After applying the designed method, THD has been reduced significantly to 2.68%. In case 2, for multi-bus systems, the THD was 20.62% and 5.05% with and without the UPQC, respectively. Here the THD in the grid input voltage was 20.62%, whereas the output voltage was 0.80%. The IEEE 519–2014 standard for voltage and current harmonics distortion criterion for electrical system design is followed in the research.

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来源期刊

2023 3rd International Conference on Robotics, Electrical and Signal Processing Techniques (ICREST)

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