Bypass system of intelligent photovoltaic component power optimizer

A power optimizer and bypass system technology, applied in photovoltaic power generation, control/regulation systems, instruments, etc., can solve the problems of low array power generation, power consumption of power optimizer, low power generation, etc., to improve power generation, The effect of reducing power loss

Inactive Publication Date: 2011-06-22
TRINA SOLAR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the irradiance is low, the generating power of the array is relatively small, and the power optimizer itself consumes a c...

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  • Bypass system of intelligent photovoltaic component power optimizer
  • Bypass system of intelligent photovoltaic component power optimizer

Examples

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Embodiment Construction

[0012] A bypass system of a smart photovoltaic module power optimizer, adding a bypass system to the power optimizer 1, the bypass system has a current size sampling unit and a bypass on-off switch unit, the bypass on-off switch unit is connected to the current size sampling The unit is connected, and the bypass on-off switch unit controls the current to flow through the bypass when the irradiance is low according to the magnitude of the current. Both ends of the solid state relay 4 are connected to the positive inlet and the positive outlet of the power optimizer 1 .

[0013] The current sampling unit is a resistor 2, which is a fixed-value resistor or a variable resistor. The resistor 2 sends the sampled voltage signal to the voltage comparator 3. The output terminal of the voltage comparator 3 is connected to the bypass on-off switch unit, and the voltage comparator The output signal of 3 controls the bypass on-off switch unit to turn on and off the bypass. The bypass on-o...

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Abstract

The invention relates to the technical field of a photovoltaic battery component, in particular to a bypass system of an intelligent photovoltaic component power optimizer. The bypass system is added on the power optimizer, and the bypass system comprises a current magnitude sampling unit and a bypass on-off switch unit. The bypass on-off switch unit is connected with the current magnitude sampling unit; the bypass on-off switch unit controls the current to flow through a bypass at lower irradiance according to the current magnitude. The invention has following beneficial effects that the bypass is added on the basis of the original intelligent component power optimizer, and the bypass is switched on and off automatically according to the magnitude of the current, so that the current can be controlled to flow through the bypass at the lower irradiance, power loss is reduced, and the generated electrical energy of a large-scale photovoltaic power generation system can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of photovoltaic cell components, in particular to a bypass system for an intelligent photovoltaic component power optimizer. Background technique [0002] The purpose of the power optimizer of solar modules is to reduce the mismatch degree of some components in the photovoltaic array under shading, reduce power consumption, and thus achieve the purpose of increasing power generation. However, when the irradiance is low, the power generated by the array is relatively small, and the power optimizer itself consumes a certain amount of power, so that the power generated by the array under low irradiance is lower than that without a power optimizer installed. Contents of the invention [0003] The technical problem to be solved by the present invention is: to develop a bypass system of a power optimizer to reduce the power loss of intelligent components under low irradiance and increase the power generation. ...

Claims

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Application Information

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IPC IPC(8): H02N6/00G05F1/67
CPCY02E10/56
Inventor 姜猛张臻丁宽
Owner TRINA SOLAR CO LTD
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