Improving power quality using filtered compensation devices

Abstract

This article analyzes the challenges of ensuring power quality in modern power supply systems and the methods for mitigating these issues. In particular, it highlights the negative effects caused by higher-order harmonics generated by equipment with semiconductor converters, such as variable-frequency drives, uninterruptible power supplies, and other power electronic devices. These harmonics lead to voltage distortion, excessive losses in the electrical network, premature failure of equipment, and malfunction of automation systems. The paper examines technologies for harmonic compensation using passive, active, and hybrid filtered compensation devices. Although active filters offer high dynamic performance, flexibility, and efficiency, their high cost limits widespread application. Therefore, the article also discusses hybrid filters, which combine economic feasibility with technical effectiveness. In the conclusion, recommendations are provided for the development and implementation of comprehensive engineering methodologies aimed at improving power quality.