Multi-level direct-current power supply system based on municipal street lamp post

A power supply system, multi-level technology, applied in the direction of DC power supply parallel operation, DC network circuit devices, electrical components, etc., can solve the problems of large power loss, insufficient power utilization, and aggravated environmental pollution, so as to reduce power loss and reduce Intermediate power conversion process, the effect of avoiding environmental pollution

Inactive Publication Date: 2020-07-31
FOSHAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing municipal street lamp power supply system uses mains power supply, and the mains power supplies AC power to DC equipment, which inevitably involves the conversion of elect

Method used

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  • Multi-level direct-current power supply system based on municipal street lamp post
  • Multi-level direct-current power supply system based on municipal street lamp post
  • Multi-level direct-current power supply system based on municipal street lamp post

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 1 As shown, a multi-level DC power supply system based on municipal street lamp poles includes a DC voltage source 1, a DC bus 3, a step-up converter 2 and a plurality of step-down converters 4, and the output terminal of the DC voltage source 1 It is electrically connected to the input end of the boost converter 2, and the output end of the boost converter 2 is electrically connected to the DC bus 3, and a plurality of the step-down converters 4 are used to reduce the voltage of the DC bus 3 to A plurality of different levels of voltages are used to provide working voltages for different loads 5 installed on street lamp poles.

[0024] The multi-level DC power supply system based on municipal street light poles described in the present invention uses DC as the power supply, which reduces the intermediate power conversion process, reduces the power loss caused by AC-DC conversion, and also reduces carbon emissions, which can avoid environmental pollution...

Embodiment 2

[0027] This embodiment should be understood as including all the technical features of the foregoing embodiments, and further specific descriptions will be made on the basis of them.

[0028] Such as figure 2 As shown, the multi-level DC power supply system also includes an energy storage battery 6, the input end of the energy storage battery 6 is electrically connected to the output end of the boost converter 2, and the output end of the energy storage battery 6 is connected to the DC bus 3 electrical connections. The setting of the energy storage battery 6 can well adjust the peaks and valleys of the power supply system, alleviate the pressure of urban electricity consumption, and improve the reliability and stability of the multi-level DC power supply system.

[0029] As a preferred technical solution, the DC voltage source 1 is a photovoltaic cell, and the photovoltaic cell is installed on a street light pole and converted into a DC voltage by solar energy. As a DC volt...

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PUM

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Abstract

The invention provides a multi-level direct-current power supply system based on a municipal street lamp post. The system comprises a direct-current voltage source, a direct-current bus, a boost converter and a plurality of buck converters, the output end of the direct-current voltage source is electrically connected with the input end of the boost converter, the output end of the boost converteris electrically connected with a direct-current bus, and the buck converters are used for reducing the voltage of the direct-current bus into a plurality of different levels of voltages so as to provide working voltages for different loads installed on a street lamp post. Direct current is adopted as a power supply, electric energy loss generated by alternating current and direct current conversion is reduced, the reliability of the power supply system can be improved, the burden of an urban power grid is effectively relieved, the problem that an existing municipal street lamp power supply system is complex in alternating current and direct current conversion control can be solved, and urban power grid upgrading and reconstruction are facilitated.

Description

technical field [0001] The invention relates to the technical field of electrical lighting, in particular to a multi-level DC power supply system based on municipal street lamp poles. Background technique [0002] The existing municipal street lamp power supply system generally includes AC-DC conversion equipment, DC power supply module and emergency power supply module for ensuring the reliability of the power supply system. Direct current, the DC power module is used for voltage regulation and modulation, and then output to electrical equipment such as intelligent lighting modules and charging modules. The existing municipal street lamp power supply system uses mains power supply, and the mains power supplies AC power to DC equipment, which inevitably involves the conversion of electric energy, so it has the following problems: the power loss caused by AC-DC conversion is large, and the use of electric energy is not sufficient. , increased environmental pollution. Conte...

Claims

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Application Information

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IPC IPC(8): H02J1/10
CPCH02J1/102
Inventor 赵攀何邦昌文安马俊杰吴铭刚毅毛文磊周妙娴杜金峰
Owner FOSHAN UNIVERSITY
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