Fieldbus-based large tracking photovoltaic plant distributed control system and control method thereof

A distributed control system and field bus technology, applied in the direction of electrical program control, comprehensive factory control, comprehensive factory control, etc., can solve the problems that cannot meet the needs of large-scale tracking photovoltaic power station construction, etc.

Active Publication Date: 2014-04-09
CHENGDU ZSUN SCI & TECH DEVING
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to reasons such as cost, stability, system reliability, and scalability, the control mode of the existing tracking photovoltaic power station cannot meet the needs of large-scale tracking photovoltaic power station construction.

Method used

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  • Fieldbus-based large tracking photovoltaic plant distributed control system and control method thereof
  • Fieldbus-based large tracking photovoltaic plant distributed control system and control method thereof

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Embodiment Construction

[0022] Below in conjunction with accompanying drawing, the present invention is described in detail.

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] like figure 1 and 2 As shown, a large-scale tracking distributed control system for photovoltaic power plants based on field bus includes field control layer, array control layer, main control layer and management layer.

[0025] The on-site control layer includes several tracking controllers, inverters, combiner boxes, step-up transformers and weather stations. Tracking controllers of the same type or tracking controllers with common features form an array, wherein the tracking The cont...

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Abstract

The invention discloses a fieldbus-based large tracking photovoltaic plant distributed control system, which comprises a field control layer, an array control layer, a master control layer and a management layer, wherein the field control layer comprises a tracking controller, a header box, an inverter, a step-up transformer and a weather station; the array control layer comprises an array controller and a 485 concentrator; the master control layer comprises a region server, a LINK and a 485 concentrator; and the management layer consists of a field management system and a remote management system, and is used for receiving signals transmitted by the master control layer to perform full-automatic monitoring management on equipment of the whole plant. Through the network structure, the control concept and the modern management mode, the system can effectively improve the stability, expandability, maintainability, and the monitored and managed properties of a large tracking photovoltaic plant, and has positive significance for promoting the construction of the large tracking photovoltaic plant, particularly a concentrating photovoltaic plant.

Description

technical field [0001] The invention relates to the technical field of photovoltaic power station control systems, in particular to a fieldbus-based large-scale tracking photovoltaic power station distributed control system. Background technique [0002] At present, the construction of photovoltaic power plants in my country is in the transition period from the demonstration project construction period to the medium and large-scale popularization stage, and the monitoring and management system of large-scale photovoltaic power plants is relatively weak. However, photovoltaic power plants are usually located in remote places, with inconvenient transportation, and low levels of automation and information management, which bring many difficulties to the management and maintenance of power plants. Existing tracking photovoltaic power plants mainly adopt stand-alone control mode or master-slave mode, most of which are based on PLC control solutions. [0003] Fieldbus technology,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/418
CPCY02P90/02
Inventor 黄忠
Owner CHENGDU ZSUN SCI & TECH DEVING
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