Pumped storage power generation system based on heavy object pressurization technology
A pumped storage and power generation system technology, applied in hydropower, engine components, machines/engines, etc., can solve problems such as ecological and environmental impacts, reduce economic and efficiency losses, expand application range, and improve stability.
Active Publication Date: 2018-08-28
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology
[0003] Pumped storage is currently the most mature large-scale energy storage method. However, the construction of traditional pumped storage power stations has strict requirements on geographical and topographical conditions, that is, two large-capacity pools and a high enough drop can be realized. and has a great impact on the ecological environment
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[0031] The invention provides a pumped storage power generation method based on heavy object supercharging technology; the system includes a single-acting single-piston rod hydraulic cylinder, a low-pressure water pool, heavy objects acting on the piston rod, and hydroelectric power generation equipment , The basic structure of hydroelectric power generation equipment has two forms: one is directly connected to the pumped storage generator set, and the other is formed by connecting the generator through the hydraulic mechanism conversion device. The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0032] figure 1 Shown is a schematic diagram of the pumped storage power generation of the direct-connected pumped-storage generator set based on the heavy-duty pressurization technology. The method of directly connecting the pump-storage generator set is that the weight B is fixed in the tray on the top of...
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The invention discloses a pumped storage electricity generation system based on the weight pressurization technology in the technical field of electric energy storage. The pumped storage electricity generation system comprises a single-action single-piston-rod hydraulic cylinder, a low-pressure water pool, a weight acting on a piston rod and hydrogenation equipment. An energy storage electricity generation method of the hydrogenation equipment includes two stages of energy storage operation and electricity generation operation. The weight of the energy storage system acts on the piston rod through gravity, the weight descends to generate a high-pressure waterhead in the hydraulic cylinder, a pressure difference is formed relative to the low-pressure water pool, a pumped storage generator set is driven to generate electricity, and water enters the low-pressure water pool from a piston cavity through the pumped storage generator set. Therefore, the gravity potential of the weight is converted to potential of water, and then converted into electric energy through the pumped storage generator set. On the basis, a plurality of devices are operated in a parallel connection or cascade connection mode, continuous energy storage and electricity generation are realized, the cost is low, the efficiency is high, the service life is long, the ecology is not affected, and carbon emission of a power grid is lowered.
Description
technical field [0001] The invention belongs to the technical field of electric power storage, and in particular relates to a pumped storage power generation system based on heavy object pressurization technology. Background technique [0002] In the power system, the power generation and load must be matched at all times, and energy storage technology plays an important role in the operation of the power grid. If there is a lack of energy storage equipment, in order to ensure the constant matching of power generation and load in the power system, conventional thermal power plants must be used as backup and run under pressure, which reduces operating efficiency. Wind farms must also adjust their output by curtailing wind, wasting energy. After the energy storage link is introduced into the system, it can effectively realize the demand side management, eliminate the peak-valley difference between day and night, and smooth the load. It can not only effectively use the power e...
Claims
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IPC IPC(8): F03B13/06
CPCF03B13/06Y02E10/20Y02E60/16Y02P70/50
Inventor 姜彤张璐路全璐遥崔岩陈紫薇
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)