Abstract
This article presents material based on the results of the analysis of literature sources on automatic devices for regulating reactive power in power supply systems. The operating mode of the compensating devices is determined taking into account the permissible voltage deviations at the terminals of the electric power receivers. Voltage, load current, reactive power directions, power factor, phase angle between the supply voltage and load current, and time can be used as control parameters. In addition, the article provides information regarding the performance of the developed circuits of contactless devices and verification of the experimental study of the operation of installations with their use. Also presented is material on the experimental study of a prototype of a contactless switching device for automatic power control of capacitor banks in various operating modes. Summarizing the results of experimental studies of a new device for automatic power control of capacitor banks, it can be stated that it fully meets the requirements for such devices and can ensure reliable operation of the power supply network with an appropriate power factor.
Highlights
Improving the reliability of power supply systems, developing and implementing energy-saving technologies and ways to reduce electricity losses is one of the topical issues of today
The efficiency of the power supply system is influenced by many factors, one of the main among them is the optimal start-up, regulation of the power of capacitor units [1,2,3,4]
Reactive power compensation devices with automatic control have been introduced in the power supply systems of large industrial and commercial consumers
Summary
Improving the reliability of power supply systems, developing and implementing energy-saving technologies and ways to reduce electricity losses is one of the topical issues of today. Ensuring the economical operation of capacitor units is possible by regulating their power when changing the magnitude and nature of the loads, depending on the voltage at the point of connection of the capacitors [3,4,5]. Non-contact devices for switching and regulating the power of capacitor units are distinguished by their speed, long service life, quiet operation and other advantages [2,3,4,5,6]. Reactive power compensation devices with automatic control have been introduced in the power supply systems of large industrial and commercial consumers. To ensure the most economical operating modes of power supply systems, power control of compensating devices is used. Load current, reactive power directions, power factor, phase angle between the supply voltage and load current, and time can be used as control parameters [7,8,9,10]
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