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Power coordination controller applied to optical storage system

A technology for coordinating controllers and optical storage systems, applied in control/regulation systems, instruments, current collectors, etc., can solve the problem of less application of photovoltaic controllers

Active Publication Date: 2020-03-24
LANZHOU JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In recent years, the application of coordinated control in various fields has become more and more extensive, but the application in photovoltaic controllers is less

Method used

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  • Power coordination controller applied to optical storage system
  • Power coordination controller applied to optical storage system
  • Power coordination controller applied to optical storage system

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Embodiment 1, with reference to figure 1 , a power coordination controller applied to photovoltaic power storage system, including photovoltaic power generation system (solar cell square array), single-chip microcomputer and battery pack (energy storage device), single-chip microcomputer controls photovoltaic power generation system and battery pack, photovoltaic power generation system and battery pack evenly connected load. Its specific composition: including voltage acquisition circuit Ⅰ and voltage acquisition circuit Ⅱ, current acquisition circuit Ⅰ and current acquisition circuit Ⅱ, DC-DC circuit, drive circuit, temperature acquisition circuit; where voltage acquisition circuit Ⅰ and voltage acquisition circuit Ⅱ are connected to The pins PA1 and PA2 of the single-chip microcomputer; the current acquisition circuit Ⅰ and the current acquisition circuit II are connected to the pins PA4 and PA5 of the single-chip microcomputer respectively; the DC-DC circuit is conn...

Embodiment 2

[0045] Embodiment 2, with reference to figure 1 , a power coordination controller applied to an optical storage system, also includes an electronic switch, one end of which is connected to the pin PB10 of a single chip microcomputer, and the other end is connected to a load and a battery pack. The electronic switch is used to realize the over-discharge protection function. The electronic switch uses a MOS tube to control the on-off of the load to prevent the controller from causing over-current, short-circuit and overload faults. Frequent overshooting and over-discharging during the operation of the battery system will affect the life of the battery, and the service life of the battery pack has a greater impact on the life of the photovoltaic power generation system. The key to extending the service life of the battery pack is to control its charging and discharging process .

[0046] refer to figure 2 , a power coordinating controller applied to photovoltaic storage syste...

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Abstract

A power coordination controller applied to an optical storage system is provided. A single-chip microcomputer controls a photovoltaic power generation system and a storage battery pack, the photovoltaic power generation system and the storage battery pack are connected with a load, and the power coordination controller comprises voltage acquisition circuits I and II, current acquisition circuits Iand II, a DC-DC circuit, a driving circuit and a temperature acquisition circuit; the voltage acquisition circuit I and the voltage acquisition circuit II are connected to pins PA1 and PA2 of the single-chip microcomputer; the current acquisition circuit I and the current acquisition circuit II are connected to pins PA4 and PA5 of the single-chip microcomputer; the DC-DC circuit is connected withthe single-chip microcomputer through a drive circuit, and the drive circuit is connected to a pin PA8 of the single-chip microcomputer. The temperature acquisition circuit is connected to a pin PA6of the single-chip microcomputer; the photovoltaic power generation system is connected with the storage battery pack through a DC-DC circuit; the first load forms a second load available voltage through the step-down circuit. According to the invention, cooperation between photovoltaic power supply and a storage battery charging and discharging mode in a maximum power state is realized, and long-term stable operation of a photovoltaic power generation system and a storage battery pack with a large load in a combined power supply manner is realized.

Description

technical field [0001] The invention belongs to the field of photovoltaic power source control, and specifically refers to a power coordination controller applied to a photovoltaic storage system and a power coordination control method thereof. Background technique [0002] Solar energy is inexhaustible and inexhaustible, the initial energy cost is low, and it is available everywhere and can be supplied nearby without long-distance transmission. Therefore, using an independent photovoltaic power generation system to supply power to the load makes the electrical equipment using this power supply have a certain degree of competitiveness in the market. very important. [0003] In recent years, coordinated control has been widely used in various fields, but it is rarely used in photovoltaic controllers. Contents of the invention [0004] The invention provides a power coordination controller and its power coordination control method applied to the photovoltaic storage system...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/35H02J3/32G05F1/67
CPCH02J7/35H02J3/32G05F1/67Y02E70/30Y02E10/56
Inventor 董海鹰张凯王怀江代爽王芸芸李国胜
Owner LANZHOU JIAOTONG UNIV
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