High-reliability low-loss alternating-current power supply method and device for communication base station

Abstract

The invention discloses a high-reliability low-loss alternating-current voltage-stabilizing power supply method and device for a communication base station. The method comprises the following steps: (1) converting a three-phase four-wire power supply of a communication base station into a single-phase two-wire power supply; (2) setting a standby power supply and mains supply switching device, andswitching to a standby power supply when the power grid fails; (3) converting the three-phase four-wire transmission electric energy into single-phase two-wire transmission electric energy; (4) setting a wide-range bidirectional voltage-regulating transformer, and controlling switching of voltage taps of the transformer by a power electronic switch; (5) enabling a dynamic reactive power compensation device to control the reactive power of the input end of the regulating transformer; and (6) dividing the single-phase two-wire power supply into two groups of power supplies for supplying power, one group of voltage-regulating power supply single-phase load and the other group of split-phase power supply three-phase load. The device comprises a power supply conversion device, a power supply switching device, a single-phase two-wire electric energy transmission device, a dynamic voltage regulation device, a reactive power compensation device and a hybrid power supply device. The invention has the advantages of high electric energy utilization rate, low failure rate and small influence of load characteristics on safe operation.

Description

technical field [0001] The invention relates to the field of energy saving and environmental protection of power supply and utilization systems, in particular to a high-reliability and low-loss AC power supply method and device for a communication base station. Background technique [0002] The reliability of power supply equipment for communication base stations (iron towers) directly affects the quality of communication services, and is related to wide area network data transmission, remote voice and video communication, accident rescue, disaster prevention and disaster relief, etc. In the vast mountainous and rural areas, iron towers are located in many areas. The construction and maintenance environment is harsh and the workload is huge. Due to frequent power grid outages, lightning strike failures of transformers dedicated to iron towers, rapid loss of base station batteries, and difficulties in power generation, the power supply reliability of base stations is not high...

AI Technical Summary

Problems solved by technology

[0010] The present invention provides a high-reliability and low-loss AC power supply method and device for communication base stations. Power supply technology, power supply switching technology, power electronics technology, measurement and control technology, network communication and artificial intelligence control and other technologies can effectively solve the unqualified voltage quality, three-phase unbalanced load, and special transformer failures of power grids that commonly exist in rural communication base stations in mountainous areas. High rate, high failure rate of base station phase loss, low utilization rate of oil generator power generation when the power grid is outage, and three-phase air conditioners cannot be used normally, etc.

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