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Method for controlling lead storage batteries of wind-solar hybrid power systems

A lead-acid battery, wind-solar hybrid technology, applied in battery circuit devices, current collectors, electric vehicles, etc., can solve the problems of reduced battery life, long charging time, battery polarization, etc.

Inactive Publication Date: 2015-06-10
李小孟
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition to being unable to effectively monitor and intelligently manage the charging and discharging status of the battery, traditional battery chargers have common problems such as small charging current, long charging time, serious battery polarization during charging, and over-discharge. This will greatly reduce the service life of the battery

Method used

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  • Method for controlling lead storage batteries of wind-solar hybrid power systems
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  • Method for controlling lead storage batteries of wind-solar hybrid power systems

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Embodiment Construction

[0009] When the fan and the solar panel are working normally, the hardware circuit will effectively isolate the output without affecting each other. The follow-up work process is as follows: firstly, check whether the voltage can meet the charging requirements of the battery. The voltage at both ends of the battery is monitored in real time through the controller. When the accurate capacity of the battery is obtained, it is divided into three situations. The output of the PWM module of the ATmegal6 microprocessor is used to control the charging voltage and current to charge the battery. At the same time, the single-chip microcomputer monitors the work of the load in real time. The current and the capacity of the current battery are used to dynamically adjust the entire wind power generation control system to realize intelligent charge and discharge control.

[0010] like figure 2 As shown, its control law is:

[0011]

[0012] In the formula: e(f) is the input of the cont...

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Abstract

The invention discloses a method for controlling lead storage batteries of wind-solar hybrid power systems on the basis of hybrid fuzzy control and PID (proportion, integration and differentiation) control technologies. The method has the advantages that residual capacity of the lead-acid storage batteries can be accurately acquired by a system, charge and discharge procedures of the lead-acid storage batteries can be effectively monitored and subjected to necessary intervention on the basis of artificial intelligence by the aid of the hybrid fuzzy control and PID control technologies, maximum power of power generation of fans and generated energy of photovoltaic solar panels can be optimally controlled, accordingly, the maximum power tracking efficiency can be maximized, charge and discharge currents for two types of external power sources and loads can be reasonably controlled for different capacity states of the batteries by the control system via quick control algorithms when power generation systems of power sources are in storage battery charge states, and the work efficiency can be improved.

Description

technical field [0001] It relates to the technical field of storage battery charging and discharging and the field of electronic control. Background technique [0002] With the continuous depletion of energy, the development and utilization of new energy such as wind energy and solar energy is an urgent problem to be solved in today's society. The battery is one of the key components in the wind-solar hybrid power generation system and the photovoltaic power generation system, and accounts for a considerable part of the cost of the entire power generation system. Therefore, it is very important to improve the operating efficiency and service life of the battery. The main cause of most battery damage is unreasonable charging and discharging methods. Therefore, a good battery charge and discharge control strategy plays a pivotal role in improving its service life and efficiency, and is also of great significance in improving the operating efficiency of the entire wind-solar h...

Claims

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Application Information

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IPC IPC(8): H02J7/00
CPCH02J2207/40Y02E60/10
Inventor 李小孟
Owner 李小孟
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