A monitoring method and inverter for power generation equipment

A technology for power generation equipment and inverters, which is applied in the monitoring method of power generation equipment and the field of inverters, can solve the problems of large investment in security equipment, large power station range, inconvenient replacement of photovoltaic modules, etc., to achieve convenient maintenance and reduce equipment investment Effect

Active Publication Date: 2020-03-13
HUAWEI DIGITAL POWER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the power station covers a large area, requires a large investment in security equipment, and there may be video dead spots in the surrounding security, which cannot make managers aware of the theft of photovoltaic modules in time, and the service life of photovoltaic modules is limited. Even if self-destruct nuts or locks are installed Dead structure, once the photovoltaic module fails and needs to be replaced, the self-destructive nut or locking structure will bring inconvenience to the replacement of photovoltaic modules, and can only make the management personnel know in time that the photovoltaic modules are protected against theft, and other power generation equipment is also at risk of being stolen

Method used

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  • A monitoring method and inverter for power generation equipment
  • A monitoring method and inverter for power generation equipment
  • A monitoring method and inverter for power generation equipment

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Embodiment Construction

[0043] In order to facilitate understanding, some descriptions of concepts related to the present application are given by way of example for reference. As follows:

[0044] subarray, such as figure 1 As shown, a string 11 , an inverter 12 , a switch 13 and a transformer 14 may be included. There can be one transformer and multiple inverters in one sub-array, and one inverter can be connected to multiple strings. Inverters can also be called string inverters.

[0045] The inverter is used to convert DC power (battery, storage battery, etc.) into AC power (generally 220V, 50Hz sine wave).

[0046] The power generation equipment may be a photovoltaic module. Since the single solar cell cannot be directly used as a power source. As a power supply, several single cells must be connected in series and parallel and tightly packed into components. Photovoltaic modules (also called solar panels) are the core part of the solar power generation system and the most important part o...

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Abstract

The embodiment of the invention provides a power generation equipment monitoring method and an inverter, relates to the field of photovoltaic technologies and can enable a manager to be timely informed that power generation equipment is stolen. The power generation equipment monitoring method comprises the steps that the inverter inputs a first electric signal to the power generation equipment so as to acquire a second electric signal from the power generation equipment, and the inverter determines a circuit between the inverter and the power generation equipment is disconnected if the inverter cannot detect the second electric signal. The embodiment of the invention is used for monitoring whether the power generation equipment is stolen or not.

Description

technical field [0001] The present application relates to the field of photovoltaic technology, and in particular to a monitoring method and an inverter for power generation equipment. Background technique [0002] With the development of the photovoltaic industry, there are more and more large-scale ground photovoltaic power stations. For example, a typical 100MW large-scale photovoltaic power station on the ground has about 400,000 battery modules and 20,000 strings. Multiple modules can be connected to form a string. Due to the large number of solar cell modules and strings, the scattered area is wide, and the light conditions need to be unobstructed. In order to ensure power generation and avoid damage to available land, large-scale ground power stations are basically built in relatively remote areas, making photovoltaic equipment stolen risk is high. Once the photovoltaic equipment is stolen, it will not only cause property loss of fixed assets and equipment, but also...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/54G01R31/62H02S50/10
CPCG01R31/50G01R31/58Y02E10/50
Inventor 沈培俊张先淼孙建章李彦锋
Owner HUAWEI DIGITAL POWER TECH CO LTD
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