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Power generation capacity prediction method based on photovoltaic power generation efficiency

A technology of photovoltaic power generation and forecasting methods, applied in forecasting, instruments, data processing applications, etc.

Active Publication Date: 2015-01-28
STATE GRID CORP OF CHINA +1
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for predicting power generation based on photovoltaic power generation efficiency to solve the problem that there is no more accurate method for calculating power generation efficiency and estimating method for power generation

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  • Power generation capacity prediction method based on photovoltaic power generation efficiency
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  • Power generation capacity prediction method based on photovoltaic power generation efficiency

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Embodiment Construction

[0039] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0040] Such as figure 1 As shown, it is a schematic structural diagram of the photovoltaic power generation monitoring system in this embodiment. The environmental monitoring instrument is used to measure the current irradiance information, and the grid-connected point voltage and current acquisition device is used to measure the voltage value and current value of the grid-connected point. The collector is connected to the environmental monitoring instrument and the grid-connected point voltage and current acquisition device. The collector receives the parameter information transmitted by the environmental monitor and the grid-connected point voltage and current acquisition device, and transmits the parameter information to the acquisition gateway through the Zigbee network, and the acquisition gateway then transmits the parameter information transmitted to ...

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Abstract

The invention relates to a power generation capacity prediction method based on photovoltaic power generation efficiency. A photovoltaic power generation system comprises a photovoltaic module used for photovoltaic power generation and a photovoltaic power generation monitoring system, wherein the photovoltaic power generation monitoring system comprises an environment monitoring instrument, a collector, a grid-connected point voltage and current collection device and a data processing unit connected with the collector; the collector is connected with the environment monitoring instrument and the grid-connected point voltage and current collection device; the environment monitoring instrument is used for collecting the irradiance information of a horizontal plane; and the grid-connected point voltage and current collection device collects the voltage value and the current value of a grid-connected point. The power generation capacity prediction method comprises the following steps: 1) according to the radiancy of the current horizional plane, the voltage value and the current value of the grid-connected point and the parameter of the photovoltaic module, calculating the current power generation efficiency of a photovoltaic power generation system, wherein the radiancy of the current horizional plane, the voltage value and the current value of the grid-connected point and the parameter of the photovoltaic module are obtained by a data processing unit; and 2) according to the current power generation efficiency of the photovoltaic power generation system, predicting the power generation capacity.

Description

technical field [0001] The invention relates to a method for predicting power generation based on photovoltaic power generation efficiency, which belongs to the field of photovoltaic power generation. Background technique [0002] With the gradual maturity and improvement of photovoltaic power generation technology, in order to meet the needs of photovoltaic power generation grid connection, it is necessary to monitor the efficiency of photovoltaic power generation in real time. The prediction and evaluation of power generation is of great significance. Not only can we know the actual power generation of existing photovoltaic power generation equipment, but also have a certain understanding of future power generation, which is helpful for improving the efficiency of power generation and photovoltaic power generation equipment. very important role. The existing calculation method of power generation efficiency is usually based on the product of the power generation efficienc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/06
CPCG06Q10/04G06Q50/06Y02E40/70Y04S10/50
Inventor 赵萌萌王以笑雷振锋江新峰胡琴洪申织华王贤立
Owner STATE GRID CORP OF CHINA
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