Improving the Quality of Power by Compensating Voltage Sag Compensation using Dynamic Voltage Restorer

S. P., S. R, M. M, L. P, D. R, V. D.
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Abstract

Consumers and utility companies alike may be negatively impacted by poor power quality. The integration of renewable energy sources, smart grid systems, and extensive use of power electronics equipment has resulted in a slew of problems in modern electric power systems. It is possible that harmonics in current and voltage as well as voltage drop, and swell may cause harm to sensitive electronic equipment. Interference from other sections of the system may cause input voltage changes in these devices. For this reason, in today's technologically advanced world, the reliability and safety of the power system depend on power quality. DVR, or Dynamic Voltage Restorer, is a D-FACTS (Distribution Flexible AC Transmission System) device that might be extensively used to address the challenges of the distribution grid's non-standard voltage, current, and frequency. By using Proportional Integral digital control signals as DVR, a new approach for reducing torque ripple has been created in this article. After that, control signals are supplied to the voltage source converter input of the brushless direct current motor's voltage source converter. This control approach reduces torque ripples. This aim is continuously met, and therefore the suggested model outperforms a few established techniques, such as FCS-MPC, PWM-MPC, and RSC, with the proposed Pulsating Proportional Integral Control (PPIC) based DVR. 3.2Nm average torque, 10.64 % torque ripple, 8.56I of RMS DC link current, 961.52 W power, 2333.9 rpm speed are achieved using the suggested approach.
利用动态电压恢复器补偿电压暂降,提高电能质量
消费者和公用事业公司都可能受到电力质量差的负面影响。可再生能源与智能电网系统的融合以及电力电子设备的广泛使用给现代电力系统带来了一系列问题。电流和电压中的谐波以及压降和膨胀都可能对敏感的电子设备造成危害。来自系统其他部分的干扰可能导致这些设备的输入电压变化。因此,在技术发达的今天,电力系统的可靠性和安全性取决于电能质量。DVR,即动态电压恢复器,是一种D-FACTS(配电柔性交流输电系统)设备,可以广泛用于解决配电网的非标准电压、电流和频率的挑战。本文采用比例积分数字控制信号作为DVR,提出了一种减小转矩脉动的新方法。然后将控制信号提供给无刷直流电机电压源变换器的电压源变换器输入端。这种控制方法减少了转矩波动。这一目标不断得到满足,因此建议的模型优于一些现有的技术,如FCS-MPC, PWM-MPC和RSC,并提出了基于DVR的脉动比例积分控制(PPIC)。该方法可实现平均转矩3.2Nm,转矩脉动率10.64%,RMS直流电流8.56I,功率961.52 W,转速2333.9 rpm。
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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