Photovoltaic module capable of being electrically isolated and electrical isolation method thereof

A photovoltaic module and electrical isolation technology, applied in photovoltaic power generation, electrical components, generators/motors, etc., can solve problems such as inability to cut off power

Inactive Publication Date: 2011-01-19
WINCHANCE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a photovoltaic module that can be electrically isolated and an

Method used

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  • Photovoltaic module capable of being electrically isolated and electrical isolation method thereof
  • Photovoltaic module capable of being electrically isolated and electrical isolation method thereof
  • Photovoltaic module capable of being electrically isolated and electrical isolation method thereof

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Embodiment Construction

[0021] The present invention relates to an electrical isolation method for a photovoltaic module. The photovoltaic module is composed of a plurality of interconnected solar cell modules, and is characterized in that a circuit breaker is connected to the power output circuit of each solar cell module; when When an emergency needs to be cut off, the electrical connection line of the photovoltaic module is used to load and transmit a power-off signal, and the power-off signal triggers the circuit breaker to cut off the power transmission line of each solar cell module, so that The entire photovoltaic power generation system stops outputting power; after the situation is resolved, the power-off signal is disconnected to make the circuit breaker connect to the transmission line, and the power supply is restored; the circuit breaker is powered by each of the solar cell components.

[0022] see figure 1 and figure 2 , a photovoltaic assembly that can be electrically isolated in the...

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Abstract

The invention relates to a photovoltaic module capable of being electrically isolated and an electrical isolation method thereof. The photovoltaic module is composed of a plurality of solar modules which are mutually connected; wherein the power output loop of each solar module is connected with a breaker, interruption of power supply is required when in emergency, the electric connection circuit of the photovoltaic module is utilized to load and transmit a power interruption signal, the power interruption signal triggers the breaker to cut off the power transmission line of each solar module, thus the whole photovoltaic generating system stops power output; and when the emergency is lifted, the power interruption signal is disconnected, so that the breaker is switched on the power transmission line and power supply is normal. The invention has the advantages of simple structure and reliable operation.

Description

technical field [0001] The invention relates to a photovoltaic module capable of electrical isolation and an electrical isolation method, which can be used in any photovoltaic power generation system. Background technique [0002] Building Integrated Photovoltaic (BIPV) is one of the important methods of solar photovoltaic power generation, which is mainly grid-connected power generation. In order to be consistent with the grid voltage, improve system efficiency, and reduce manufacturing costs, multiple solar cell modules with a voltage level of 24V or 36V are usually connected in series. Therefore, the voltage of the photovoltaic DC system is relatively high, which can reach about 600 volts, and it is closely connected with buildings. Combining them creates a number of security issues: [0003] 1: There is no solution to fire safety. When a fire breaks out in a building, since the building has a 600V electrified body and this electrified body exists as long as there is li...

Claims

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Application Information

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IPC IPC(8): H02N6/00H02H7/00
CPCH01L31/02021Y02E10/50
Inventor 陈文良孟利
Owner WINCHANCE TECH
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