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On-line monitoring device and method of photovoltaic array

A photovoltaic array and monitoring device technology, applied in photovoltaic system monitoring, photovoltaic power generation, photovoltaic modules, etc., to achieve the effects of flexible communication network, simple structure, and flexible installation

Inactive Publication Date: 2017-12-29
ZHEJIANG ENERGY & NUCLEAR TECH APPL RES INST
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  • Claims
  • Application Information

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Problems solved by technology

The technical development of monitoring equipment for photovoltaic arrays involves two problems: one is that more than 95% of the existing dozens of G power stations in operation have not installed monitoring equipment, and these power stations face severe problems in operation and maintenance; One of the core technologies, how to ensure the reliability of communication

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  • On-line monitoring device and method of photovoltaic array
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  • On-line monitoring device and method of photovoltaic array

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Embodiment Construction

[0040] In order to describe the technical content of the present invention more clearly, further description will be given below in conjunction with specific embodiments.

[0041] Such as Figure 1~2 As shown, the present invention provides a photovoltaic array on-line monitoring device, the photovoltaic array includes a plurality of photovoltaic array strings, each of the photovoltaic array strings is provided with a combiner box, and each of the combiner boxes is connected to a Inverter, the online monitoring device includes a host computer, a concentrator and a plurality of collectors, wherein:

[0042] The collectors are in one-to-one correspondence with the combiner boxes, and each collector is set at the corresponding combiner box, and the collector is used to collect the photovoltaic string data of the corresponding combiner box;

[0043] The concentrator is arranged at the inverter, the concentrator communicates with the collector to obtain the data of the photovoltai...

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Abstract

The invention relates to an on-line monitoring device and method of a photovoltaic array. The photovoltaic array comprises a plurality of photovoltaic array set strings, which are respectively provided with a combiner box. Each combiner box is provided with an inverter. The on-line monitoring device comprises a host computer, a concentrator and a plurality of collectors. The on-line monitoring device and method are advantageous in that a suspension wire type Hall open loop current sensor is adopted, and the design of the combiner box is not affected, and thereby the on-line monitoring device can be used in the design of new program of a photovoltaic power station, and also in the intelligent upgrading of the current photovoltaic power station; as electric power carrier wave technology is adopted, no extra communication cables are required and cost can be saved; power line communication network belongs to plug-and-play network, which means by connecting power supply, the communication network can be accessed to, and real-time on-line operation can be realized; with the automatic route function, the communication network can be more flexible, and signals will not be obstructed; the structure is simple and application is convenient, and application scope is wide.

Description

technical field [0001] The invention relates to the technical field of photovoltaic intelligent operation and maintenance, in particular to the technical field of photovoltaic array monitoring, and specifically refers to a photovoltaic array online monitoring device and method. Background technique [0002] With the large-scale construction of photovoltaic power generation and grid connection one after another, operation and maintenance has become the top priority of photovoltaic power plants, which is directly related to the safety, reliability and investment income of the power plant. The solar photovoltaic power station is composed of several photovoltaic arrays, and the photovoltaic array is composed of hundreds of photovoltaic modules connected in series and parallel. The power generation of the photovoltaic array is the sum of the power generation of a single photovoltaic module. In practical applications, the power generation of photovoltaic module arrays is affected ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02S50/10H02J13/00
CPCH02J13/0003H02S50/10Y02E10/50
Inventor 姚烨彬
Owner ZHEJIANG ENERGY & NUCLEAR TECH APPL RES INST
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