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Wind energy and tidal energy complementary energy-storage power generation system

A technology of energy storage power generation and tidal energy, which is applied in wind power generation, ocean power generation, wind engines, etc., can solve the problems of huge investment, harsh location selection of pumped storage power stations, etc., and achieve the effect of small power consumption

Inactive Publication Date: 2012-07-04
SHANGHAI WANDE WIND POWER
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Problems solved by technology

However, the location of the pumped storage power station is very demanding. It must not only have a terrain suitable for building the upper and lower reservoirs, but also have sufficient water sources and volumes, and have large-capacity two-way power transmission and transmission facilities. The initial investment in construction is huge. , the technical requirements are strict, and the efficiency of converting from valley power to peak power is only about 50%. The large amount of electric energy consumed in pumped storage also emits greenhouse gases

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  • Wind energy and tidal energy complementary energy-storage power generation system
  • Wind energy and tidal energy complementary energy-storage power generation system
  • Wind energy and tidal energy complementary energy-storage power generation system

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with accompanying drawing.

[0014] Such as figure 2 , image 3 As shown, choosing to build a bank in the coastal zone or offshore islands and reefs can form an energy storage reservoir in a closed water area, and the seawater in the closed water area can enter and exit the closed water area under artificial arrangements under the action of the tide. For example, in a valley or a bay between two promontories extending into the sea, a tidal power station is built between the high and low tide levels, a pumped storage power station is built on the high tide line of the valley or the bay, and a wind power station is built at the highest point of the promontory. Generating units, you can also choose to build a pumped storage power station on the high tide level near the existing tidal power station, and build a wind turbine at a high coast or perennial tuyere. The conditions for choosing to build a tidal...

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Abstract

The invention provides a wind energy and tidal energy complementary energy-storage power generation system, comprising an intelligent controller, a wind generating set, a tidal power station and a tidal power unit, as well as a pumped-storage power station and a pumped-storage unit, wherein the altitude of a dam base of a reservoir of the pumped-storage power station is higher than that of a dam top of the tidal power station, the wind generating set is respectively connected with the pumped-storage unit or transformer of the pumped-storage power station through a reversing switch, the tidal power station is respectively connected with the pumped-storage unit or transformer of the pumped-storage power station through a reversing switch, and the intelligent controller is respectively connected with the wind generating set, the tidal power station and the tidal power unit, as well as the pumped-storage power station and the pumped-storage unit. According to the invention, low-cost power generated in a low valley period of a tidal power station and wind generation set power grid can be used for pumping high-level seawater to a storage power station with larger potential energy by using less electric energy when tides are at high tide level, the storage power station can supply power in peak period in a peak power stage of the power grid, and the efficiency is better when the tides are at low tide level.

Description

technical field [0001] The invention relates to a wind energy and tidal energy complementary energy storage power generation system. Background technique [0002] Wind energy and tidal energy are renewable and clean energy sources that do not consume fossil energy and emit no greenhouse gases or carbon dioxide. Although the technology for converting wind energy and tidal energy into electrical energy is becoming more and more mature, its economic efficiency is gradually approaching the cost of traditional electrical energy production, which is accepted by people. However, due to the uncontrollable natural law of wind energy and tidal energy, in the process of energy conversion, electric energy cannot be stored. The electricity price per unit of converted electric energy is relatively high. Although it has the advantage of clean energy, it still has shortcomings in the economic indicators of electricity price. [0003] The electricity consumption process of our daily life an...

Claims

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Application Information

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IPC IPC(8): F03D9/00F03B13/26F03B13/06H02J3/38
CPCY02E10/763Y02E60/17Y02E10/725Y02E10/38Y02A30/14Y02E10/30Y02E10/72Y02E10/76Y02E60/16Y02P70/50Y02P80/10Y02P90/50
Inventor 李义梁
Owner SHANGHAI WANDE WIND POWER
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