Distributed power generation and power supply system
A distributed power generation and power supply system technology, applied in the field of electric power, can solve problems such as energy loss, power consumption, overload, etc., and achieve high reliability and avoid overload problems
Inactive Publication Date: 2018-09-07
ANHUI DONGYUAN ELECTRIC POWER CO LTD
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Problems solved by technology
The DC power is converted into AC power, which will cause energy loss. Then, during the use of DC appliances, the AC power supply must be converted into DC power supply, which will also cause losses. Such double losses will consume a lot of power.
To solve this problem, a DC voltage stabilization system is currently installed. After the distributed power generation system generates power, the DC power generated directly passes through the DC voltage stabilization system to generate a continuous and stable DC power supply with multiple voltage levels, which is directly used by DC appliances. Although this reduces The power loss caused by the inverter and rectification process is eliminated, but there is a problem that the current exceeds the predetermined value and overload occurs, resulting in damage to the distributed power supply system
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[0011] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0012] Referring to the accompanying drawings, a distributed power supply system includes a distributed power generation system 1, a DC voltage stabilization system 2 and an energy storage system 3, and the output of the distributed power generation system 1 is connected to the input of the DC voltage stabilization system 2. terminal, the DC voltage stabilizing system 2 has first and second two output terminals, the first output terminal of the DC voltage stabilizing system 2 ...
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The invention relates to a distributed power generation and power supply system. The distributed power generation and power supply system comprises a distributed power generation system, a direct current voltage stabilizing system and an energy storage system; the output end of the distributed power generation system is connected to the input end of the direct current voltage stabilizing system; the direct current voltage stabilizing system is provided with a first output end and a second output end; the first output end of the direct current voltage stabilizing system is electrically connected with a direct current power supply; and the second output end of the direct current voltage stabilizing system is electrically connected with the energy storage system. The distributed power generation and power supply system is characterized in that a first overcurrent protective device is positioned and arranged between the direct current voltage stabilizing system and the direct current powersupply; and a second overcurrent protective device is positioned and arranged between the direct current voltage stabilizing system and the energy storage system. The distributed power generation andpower supply system is protected effectively.
Description
technical field [0001] The invention relates to the field of electric power, in particular to a distributed power generation and power supply system. Background technique [0002] Distributed power supply system includes distributed power generation system and distributed power supply system. The existing distributed power supply system generates direct current through the distributed power generation system, converts it into a standard alternating current power source through an inverter, uses electrical appliances to provide electric energy, and can be connected to the grid. Among them, the distributed power generation system is mainly a distributed power generation system that directly converts solar energy and wind energy into electrical energy. After the distributed power generation system generates electricity, the generated electric energy passes through the inverter to convert DC power into AC power and transmit it to DC appliances. Each DC appliance is equipped wit...
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IPC IPC(8): H02J1/10
CPCH02J1/082H02J1/10
Inventor 陈晨杜和松
Owner ANHUI DONGYUAN ELECTRIC POWER CO LTD