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Maximum power point tracking controllers and associated systems and methods

A technology of tracking controller and maximum power point, applied in control/regulation systems, instruments, regulating electrical variables, etc., which can solve the problems of slow MPPT controller and delayed MPP operation.

Inactive Publication Date: 2015-08-19
VOLTERRA SEMICONDUCTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional MPPT controllers often have one or more disadvantages
For example, some proposed MPPT controllers will be relatively slow under certain conditions, thus delaying the MPP operation

Method used

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  • Maximum power point tracking controllers and associated systems and methods
  • Maximum power point tracking controllers and associated systems and methods
  • Maximum power point tracking controllers and associated systems and methods

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] Applicants have developed new MPPT controllers that may achieve one or more advantages. For example, certain embodiments of the controller can operate with various loads and also converge on the MPP relatively quickly.

[0044] image 3 A power system 300 is shown that includes an MPPT controller 302 electrically coupled between a power source 304 and a load 306 . As described below, the MPPT controller 302 is adapted to operate the power source 304 at or near the MPP of the power source 304 while delivering power from the power source 304 to the load 306 .

[0045] The MPPT controller 302 includes an input port 308 and an output port 314 , the input port 308 includes an input terminal 310 and an input terminal 312 , and the output port 314 includes an output terminal 316 and an output terminal 318 . A positive terminal 320 of the power supply 304 is electrically coupled to the input terminal 310 and a negative terminal 322 of the power supply 304 is electrically coupl...

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PUM

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Abstract

A maximum power point tracking controller includes an input port for electrically coupling to an electric power source, an output port for electrically coupling to a load, a control switching device, and a control subsystem. The control switching device is adapted to repeatedly switch between its conductive and non- conductive states to transfer power from the input port to the output port. The control subsystem is adapted to control switching of the control switching device to regulate a voltage across the input port, based at least in part on a signal representing current flowing out of the output port, to maximize a signal representing power out of the output port.

Description

Background technique [0001] Photovoltaic cells produce a voltage that varies with current, cell operating conditions, cell physics, cell defects, and cell illumination. As shown in Figure 1, a mathematical model for a photovoltaic cell models the output current as: [0002] I = I L - I 0 { exp [ q ( V + IR S n k T ] - 1 } - V + IR S R S H...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05F1/67
CPCG05F1/67
Inventor M·D·麦克吉姆赛A·J·斯特拉塔克斯I·耶尔格维奇X·张K·姚V·W·吴P·T·阮A·D·梅娜希安
Owner VOLTERRA SEMICONDUCTOR
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