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An operation monitoring system for a distributed photovoltaic power station

A distributed photovoltaic and operation monitoring technology, applied in the direction of circuit devices, electrical components, etc., can solve the problems of uncertain access time, large number of access information points, etc., to avoid inconsistent access time, avoid real-time and security sexual effect

Inactive Publication Date: 2016-08-24
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At this stage, due to the fact that many distributed photovoltaic power stations in many areas have a wide range of areas, the number of access information points is large, and the access time of each station is uncertain, the access of a large amount of information will have a greater impact on the operation of the EMS (Energy Management System) of the power system. pressure

Method used

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  • An operation monitoring system for a distributed photovoltaic power station
  • An operation monitoring system for a distributed photovoltaic power station
  • An operation monitoring system for a distributed photovoltaic power station

Examples

Experimental program
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Embodiment 1

[0036] figure 1 A structural diagram of an operation monitoring system for a distributed photovoltaic power plant provided in an embodiment of the present application.

[0037] Such as figure 1 As shown, the operation monitoring system provided in this embodiment includes a data acquisition subsystem 20, a network transmission subsystem 30 and a control master station subsystem 40, wherein the network transmission subsystem 30 is connected with the data acquisition subsystem 20 and the control master station subsystem respectively 40 are connected.

[0038] The data acquisition subsystem 20 is also connected to the inverters, watt-hour meters, protection measurement and control devices, and environmental monitoring devices of each sub-station 10 of the distributed photovoltaic power plant, and collects the operating status of the sub-station 10 from these devices information.

[0039] The data acquisition subsystem 20 includes an interface integration device (not shown), wh...

Embodiment 2

[0049] figure 2 A structural diagram of an operation monitoring system for a distributed photovoltaic power plant provided in another embodiment of the present application.

[0050] Such as figure 2 As shown, in this embodiment, a power optimization scheduling subsystem 60 is added on the basis of the previous embodiment, and the power optimization scheduling subsystem 60 is connected to the control master station subsystem 40 .

[0051] The power optimization scheduling subsystem 60 is used to predict the generated power according to the solar output power, installed capacity, radiation intensity, temperature and wind speed contained in the operating state information, and upload the predicted results to the EMS, EMS The start-stop and output power of each substation 10 can be controlled according to the result, so as to ensure a more stable power grid.

[0052] The power optimization scheduling subsystem is provided with a weather server (not shown), and the weather serv...

Embodiment 3

[0054] image 3 A structural diagram of an operation monitoring system for a distributed photovoltaic power plant provided in another embodiment of the present application.

[0055] Such as image 3 As shown, the operation monitoring system provided in this embodiment is based on the previous embodiment with an additional historical data server 70, and the historical data server 70 is connected with the control master station subsystem 40 for storing the control master station subsystem 40 The received running status information and the start-stop command and power control command issued by EMS50 are used as the basis for maintenance.

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Abstract

This application discloses an operation monitoring system for a distributed photovoltaic power station, including an information collection subsystem, a network transmission subsystem, and a control master station subsystem. The information collection subsystem is used to collect the operation status information of each substation, and then The transmission subsystem uploads to the control master station subsystem, and the control master station subsystem integrates the operation status information uploaded by each sub-station, and uniformly outputs it to the EMS of the power system, instead of each sub-station uploading the operation status information to the EMS separately , The information is unified and summarized, so that it can avoid the large amount of information from exerting great pressure on the EMS. In addition, it can also avoid the inconsistency of the access time of each sub-station. Every time a new station accesses, the existing EMS needs to be re-configured and data loaded, so as to avoid adverse effects on the real-time and security of the EMS.

Description

technical field [0001] The present application relates to the technical field of photovoltaic power generation, and more specifically, relates to an operation monitoring system of a distributed photovoltaic power station. Background technique [0002] Fossil energy sources such as coal and oil are frequently running out, and the problem of environmental pollution is becoming more and more severe. Solar energy, as the most potential renewable energy, is becoming more and more popular because of its unlimited reserves, universality of existence, cleanness of use, and practical economy. The more popular it is. Vigorously developing the photovoltaic industry and actively developing solar energy have received unprecedented attention worldwide, and have become an important part of the sustainable development strategies of various countries. [0003] At this stage, due to the fact that many distributed photovoltaic power stations in many areas are extensive, the number of access i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J13/00
Inventor 王培林吴智刚孙献春黄宏盛冯超戴元安李峰辉钱璟钱隆翔施旭昶葛琪朱翔唐伟杰张福珍朱晔胡喆梁明源范付元徐浩徐光福严伟张春合张敏冯晓真
Owner STATE GRID CORP OF CHINA