Coordinated control method for active power of photovoltaic power station group

A photovoltaic power station, active power technology, applied in the direction of photovoltaic power generation, control/regulation system, and regulation of electrical variables, etc., can solve problems affecting photovoltaic power generation capacity, dispatching and operating power system power system stability, coordination of peak-shaving photovoltaic power stations, etc., to achieve active power Simple and accurate power coordination control, optimized resource utilization, and reduced number of changes

Active Publication Date: 2014-01-29
STATE GRID CORP OF CHINA +2
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AI Technical Summary

Problems solved by technology

After large-scale photovoltaic power plants are connected to the power grid, problems such as power system flow, stability, peak regulation, and coordination among multiple photovoltaic power plants will be brought to the dispatching operation of the power grid, which will affect the ability of the power grid to accept photovoltaic power generation.

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  • Coordinated control method for active power of photovoltaic power station group
  • Coordinated control method for active power of photovoltaic power station group
  • Coordinated control method for active power of photovoltaic power station group

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Embodiment Construction

[0044] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0045] figure 1 Shows a flow chart of a method for coordinated control of active power of a photovoltaic power station group in an embodiment of the present invention; the present invention provides a method for coordinated control of active power of a photovoltaic power station group, which collects real-time output from photovoltaic power stations through a power acquisition module Active power P i ; The specific steps are:

[0046] Step 1: Obtain the maximum allowable photovoltaic power output value P of the photovoltaic power station group according to the operation mode of the photovoltaic power station in the power system max ;include:

[0047] ①: Manually set the maximum allowable photovoltaic power output value P of the grid through the parameter setting module max Value o...

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Abstract

The invention provides a coordinated control method for active power of a photovoltaic power station group. The method includes the following steps: firstly, acquiring a maximum allowable photovoltaic power generation output value Pmax of a power network; secondly, acquiring planed total output amount Pn_plan of the photovoltaic power station group; thirdly, regulating a planned output value Pi_plan of each photovoltaic power station; fourthly, acquiring the planned output value Pi_plan of each photovoltaic power station. Compared with the prior art, the coordinated control method for the active power of the photovoltaic power station group has the advantages that on the premise that the power network operates safely and stably, output plan of each photovoltaic power station is optimally configured in consideration of a principle of equality according to actual resource situation of each power station, and accordingly photovoltaic power generation output is maximized.

Description

Technical field [0001] The invention relates to a photovoltaic power station power control method, in particular to a photovoltaic power station group active power coordinated control method. Background technique [0002] Photovoltaic power generation is a new energy power generation technology that uses the photovoltaic effect of the semiconductor interface to directly convert light energy into electrical energy. After the solar cells are connected in series, they can be packaged and protected to form a large-area solar cell module. Together with the power controller and other components, a photovoltaic power generation device is formed. The photovoltaic power generation device transmits electric energy to the grid through the inverter to form a grid-connected photovoltaic power generation system. At present, many large-scale photovoltaic power stations of 100 megawatts have been built in western my country, and the total installed capacity of grid-connected photovoltaic power ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/46G05F1/66
CPCY02E10/563Y02E10/56
Inventor 赵亮曲立楠葛路明朱凌志陈宁赵大伟张磊钱敏慧施涛
Owner STATE GRID CORP OF CHINA
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