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Photovoltaic power station and hydropower station combined operation system and method

A photovoltaic power station and operating system technology, applied in general control systems, control/regulation systems, electrical program control, etc., can solve the problems of large fluctuations and instability of photovoltaic power generation power generation, and achieve strong adjustment ability, rapid startup, and adjustment. flexible effects

Active Publication Date: 2015-06-17
QINGHAI HUANGHE HYDROPOWER DEV
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is the problem of large fluctuation and instability of photovoltaic power generation

Method used

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  • Photovoltaic power station and hydropower station combined operation system and method
  • Photovoltaic power station and hydropower station combined operation system and method
  • Photovoltaic power station and hydropower station combined operation system and method

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Embodiment Construction

[0018] The present invention will be described in detail through specific examples below. It should be understood that these specific embodiments are only used to illustrate the present invention, and do not constitute any form of limitation to the actual protection scope of the present invention.

[0019] In this embodiment, taking the joint operation system of photovoltaic power station in Qinghai Gonghe Park-Longyangxia Hydropower Station as an example, a joint operation system of photovoltaic power station and hydropower station is provided. The joint operation system is established by the following method:

[0020] S1. Measure and analyze output characteristics: measure the light radiation data of Gonghe Park in Qinghai, analyze the light radiation characteristics of this area, and obtain the output characteristics of photovoltaic power plants in this area and the law of the influence of weather on photovoltaic power generation.

[0021] Wherein, the light radiation data i...

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Abstract

The invention provides a photovoltaic power station and hydropower station combined operation system. The system is established through the method which comprises the steps that first, the output feature of photovoltaic power generation is measured and analyzed; then the output feature of photovoltaic power generation and the power generation feature of a hydropower station are combined, and according to the water balance theory, the influence on a hydropower station downstream power station from established combined operation system is analyzed; the influence on a power grid from the system is analyzed again; the scale of a photovoltaic power station connected into the hydropower station is computed again, and the operation situation of a water-turbine generator set of the hydropower station in the combined operation system is analyzed; and finally the combined operation system is formed. The invention further provides an operation method of the combined operation system. By setting a control method that the hydropower station is used for compensating the photovoltaic power station, an AGC and AVC control method and a water balance testing method, the combined operation system operates. The advantages of high adjusting capacity and high adjusting speed of the hydropower station are used, the photovoltaic power station with high volatility is subjected to compensation, and the combined operation system can provide power for a power grid stably.

Description

technical field [0001] The invention relates to the operation technology of a photovoltaic power station and a hydropower station, in particular to a combined operation system of a photovoltaic power station and a hydropower station and an operation method thereof. Background technique [0002] Photovoltaic power generation is a power generation method that uses solar cells to convert light energy into electrical energy based on the principle of photovoltaic effect. Photovoltaic power generation has the characteristics of safety, reliability, pollution-free, and no risk of depletion. Moreover, photovoltaic power stations do not need to consume fuel, and can supply power for the entire network or on-site power generation. It is a power generation method with obvious advantages. However, since photovoltaic power generation is greatly affected by factors such as day and night, seasons, and weather, its power generation output is random, volatile, and intermittent, which can eas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418
CPCY02P90/02G05B19/4184
Inventor 谢小平杨存龙张军魏显贵庞秀岚王兴玉孙玉泰顾斌曹光明王战策胡锁钢张空海邓义马金忠吴亚星徐嘉瑞孙静解统成戴勇干龚传利王英鑫徐麟陆宋杰孟佳马之伟王宝炯宋建青沈有国金东兵乔吉庆黄希伟何振中
Owner QINGHAI HUANGHE HYDROPOWER DEV
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