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Control arrangement

A technology of control structure and controller, which is applied in the direction of control/regulation system, instrument, and regulation of electrical variables, etc., and can solve problems such as low efficiency

Inactive Publication Date: 2016-04-27
UNIV OF PLYMOUTH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So this structure is less efficient than it should be

Method used

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Examples

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Embodiment Construction

[0022] Such as figure 1 As shown in and described herein, the output of a solar panel varies significantly depending on a number of factors, not least with the intensity of light incident on the solar panel at any given time.

[0023] refer to figure 2 , shows a circuit diagram of a control structure according to an embodiment. This circuit diagram represents the control structure used to control the output from the solar panel to allow maximum power to be extracted from it. Although described in relation to solar panels, it is understood that the invention may be used in other applications where enhanced power levels are desired, which can be drawn from a unit comprising a variable voltage source and internal capacitance.

[0024] Such as figure 2 As shown, a solar panel 10 has a pn junction diode 12 connected across its terminals. The diode 12 has an internal junction capacitance, as figure 2 Shown in capacitor 14. Although not shown, the solar panel 10 also has a s...

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Abstract

A control arrangement for use in controlling the electrical supply from a power supply unit including an internal capacitance to an output is described, the control arrangement comprising an inductor (22) a switch (26) arranged in parallel with internal capacitance, and a controller (30) operable to control the operation of the switch (26) such that closing of the switch (26) results in the formation of an LCR circuit, the internal capacitance forming the capacitance of the LCR circuit. An associated control method is also described.

Description

technical field [0001] The present invention relates to control structures, and in particular to control structures suitable for use with photovoltaic or solar panels (hereinafter referred to as solar panels) to increase their usable output. While especially suited for use with solar panels, the control structure can be used with a variety of other devices or power sources. Background technique [0002] Solar panels are increasingly used to generate electricity. Its output can be used directly to drive other devices or can be used to charge electrical storage or supply power to the main grid. Since the output of a solar panel varies non-linearly depending on factors such as incident light intensity, operating temperature, and other factors, direct uncontrolled output supply from a solar panel to a load is generally inappropriate. figure 1 A typical I-V output of a solar panel is shown graphically at different incident light intensities, showing the relationship between the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38
CPCH02J3/381H02J2300/24H02M3/156H02M3/33507H02M3/1586H02J3/385G05F1/67Y02E10/56
Inventor M·艾哈迈德
Owner UNIV OF PLYMOUTH