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Wind, diesel and storage independent power supply switching system and power supply switching method for communication base station

A communication base station, independent power supply technology, applied in wind power generation, photovoltaic power generation, photovoltaic power station and other directions, can solve problems such as DC bus voltage fluctuation, achieve the effect of ensuring stability and reliability, solving power supply difficulties, and maintaining stability

Active Publication Date: 2019-05-17
WUHAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, every time the diesel engine is connected to or withdrawn from the power generation system, the DC bus voltage will be fluctuated

Method used

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  • Wind, diesel and storage independent power supply switching system and power supply switching method for communication base station
  • Wind, diesel and storage independent power supply switching system and power supply switching method for communication base station

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Embodiment Construction

[0019] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0020] The communication base station of the present invention uses a wind-solar diesel storage independent power supply switching system, such as Figure 1~2 As shown, it includes wind power generator 1, photovoltaic power generation array 2, battery pack 3, diesel generator set 4, communication base station load 5 (base station power supply level is 48V), microgrid monitoring system 6, digital signal processor 13, AC load 16 and a controllable load 15, wherein the power output end of the wind power generator 1 is connected to the AC power input end of the first AC / DC converter 7, and the DC power output end of the first AC / DC converter 7 is connected to the first The input terminal of the DC / DC converter 8, the power output terminal of the photovoltaic power generation array 2 is connected to the input terminal of the second DC / DC converter 10...

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Abstract

The invention relates to a wind, light and diesel storage independent power supply switching system for a communication base station. The system comprises a wind power generator, a photovoltaic power generation array, a storage battery set, a diesel generator set, a communication base station load, a micro-network monitoring system, a digital signal processor, an alternating current load, DC / AC converters and a controllable load, wherein, an electric energy output end of the wind power generator is connected with an alternating current power supply input end of a first AC / DC converter, a direct current power output end of the first AC / DC converter is connected with an input end of a first DC / DC converter, an electric energy output end of the photovoltaic power generation array is connected with an input of a second DC / DC converter, an electric energy output end of the storage battery set is connected with an input end of a third DC / DC converter, and an electric energy output end of the diesel generator set is connected with an alternating current power supply input of a second AC / DC converter. According to the wind, light, diesel storage independent power supply switching system for the communication base station, and when a diesel engine accesses or exits from the system, the voltage of a direct current bus keeps stable all the time.

Description

technical field [0001] The invention relates to the technical field of DC micro-grid systems, in particular to a wind-solar-diesel-storage independent power supply switching system and a power supply switching method for a communication base station. Background technique [0002] With the popularization of mobile phones, the coverage requirements for mobile signals are becoming more and more extensive, and the construction of communication base stations has gradually spread from urban centers to remote areas. In some remote areas, it is difficult to connect to mains power due to geographical restrictions. Usually, we choose to use the abundant local resources such as wind and solar to generate complementary power. Since the power generation of natural resources such as scenery is greatly affected by climate and seasons, it is necessary to add an energy storage device battery to stabilize the entire system. When the battery fails or encounters continuous cloudy and rainy day...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J9/08H02S10/10H02S10/12H02J3/32
CPCH02J3/32H02J9/08H02S10/10H02S10/12Y02B10/70Y02E10/56Y02E10/76Y02E70/30
Inventor 胡胜曾雨晨刘芙蓉
Owner WUHAN UNIV OF TECH
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