Integrated wind and solar energy conversion and energy storage power system

A technology of power system and solar energy, applied in the field of power system, can solve problems such as increased maintenance cost, small adaptable range of wind speed, waste of resources, etc., to improve collection and conversion efficiency, reduce construction and resource costs, and improve wind utilization rate Effect

Active Publication Date: 2015-01-28
鄂尔多斯市泰坤电器技术有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

[0010] 1] The density of the range of available wind energy is low, coupled with the inherent characteristics of this collection method, the utilization rate of wind energy is low
[0011] 2] The unit wind power generation system occupies a large land area and three-dimensional space
[0012] 3], the adaptability to wind speed is small
[0013] 4] Due to the uncontrollability of the wind force and time, the stability of the power output is poor
[0014] 5] There is no storage and buffer link. If batteries or batteries are used to store energy, the construction and operation costs will increase a lot, and the scale is limited
[0015] 6] The cost of disposal of scrapped batteries or batteries is very high, and the environmental impact is great
[0016] 7], because the inverter needs to be carried out before grid connection, there are certain harmonics, which have a certain impact on the power quality; the power quality also has a certain impact on the safe operation of the power system
[0025] 16] The capacity of the unit power generation system (single wind turbine) is limited, and the construction cost of the low voltage ride-through function is relatively high, and due to the scattered layout, the reliability is reduced and the maintenance cost is increased
[0026] 17] If pumped storage is used, in addition to the construction of water sources and storage (reservoirs), the conversion from wind energy to power generation requires multiple conversions (wind energy-electric energy-water potential energy-electric energy), and the efficiency is greatly reduced; and the environment High requirements and construction costs, poor broad-spectrum
[0027] 18] Uncontrollable scale and time of wind power sources, no large-scale storage, when the power load is low or no load, the generated power cannot be connected to the grid, and the phenomenon of wind abandonment is very common, resulting in waste of resources and affecting the economy of wind power companies benefit
[0028] 2. The current solar power generation system
[0031] 1] Solar energy is seriously affected by factors such as time, season, climate, and geographical location. Human beings are currently unable to control the source of solar energy in terms of time and value, so the power source of solar photovoltaic power generation systems is very unstable.
[0032] 2] The solar photovoltaic power generation system must be installed with an energy storage system to stabilize and store electric energy. Under the current technical conditions, batteries or batteries used to store electric energy have high unit electric energy storage costs, limited unit storage power, high operation and maintenance costs, and l...

Method used

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  • Integrated wind and solar energy conversion and energy storage power system
  • Integrated wind and solar energy conversion and energy storage power system
  • Integrated wind and solar energy conversion and energy storage power system

Examples

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Embodiment 1

[0073] Embodiment 1: as figure 1 As shown, wind energy, solar energy comprehensive conversion and energy storage power system, it comprises two groups of wind energy storage units, a pressurization tank 7 and solar energy heat collection pressurization device; The described wind energy storage unit of each group comprises a wind collecting fan 1. A transmission 2, an air compressor 3 and an air storage tank 4, wherein the air collecting fan 1 is a radial flow fan arranged horizontally, and the rotating shaft of the air collecting fan 1 and the input shaft of the air compressor 3 pass through the transmission 2 transmission connection, a brake 5 is provided on the rotating shaft of the air collecting fan 1, and the brake 5 can be any one of disc brake, electromagnetic brake, or belt brake; the air collecting fan 1 with automatic adjustment function meets When strong winds and strong winds exceed the normal working range and continue to work in unfavorable weather, the fan blade...

Embodiment 2

[0074] Embodiment 2: as figure 2 Shown, wind energy, solar energy comprehensive conversion and energy storage power system, it comprises two groups of wind energy storage units, a pressurization tank 7, solar heat collecting pressurization device and a power machine; Described wind energy storage unit of each group includes An air collecting fan 1, a speed changer 2, an air compressor 3 and an air storage tank 4, wherein the air collecting fan 1 is a radial flow fan arranged horizontally, such as image 3 and Figure 4 As shown, the edge of the wind-receiving pressure surface of the blade of the wind-collecting fan 1 is surrounded by a wind-collecting wall 19; or as Figure 5 and Figure 6 As shown, the wind collecting groove 20 is evenly arranged on the wind receiving pressure surface of the wind collecting fan 1 blade, and the shape of the wind collecting groove 20 is a spherical shape; or as Figure 7 and Figure 8As shown, the edge of the wind pressure surface of the ...

Embodiment 3

[0075] Embodiment 3: as Figure 9 Shown, wind energy, solar energy comprehensive conversion and energy storage power system, it comprises two groups of wind energy storage units, a pressurization tank 7, solar heat collecting pressurization device and two power machines; Described wind energy storage unit of each group includes A wind collecting fan 1, a speed changer 2, an air compressor 3 and two air storage tanks 4, wherein, such as Figure 10 As shown, the wind-collecting fan 1 is an axial-flow fan arranged vertically, and the edge of the wind-receiving pressure surface of the blade of the wind-collecting fan 1 is surrounded by a wind-collecting wall 19, and the wind-receiving pressure surface of the blade of the wind-collecting fan 1 is evenly arranged There is an air-collecting groove 20, and the shape of the air-collecting groove 14 is a cuboid. By increasing the wind-collecting wall 19 and the air-collecting groove 20, the force area of ​​the fan blade receiving the wi...

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Abstract

The invention discloses an integrated wind and solar energy conversion and energy storage power system which comprises wind energy storage units, a pressure tank and a solar heat collection pressure device, wherein the wind energy storage units comprise wind collection fans, speed changers, air compressors and air storage tanks; rotating shafts of the wind collection fans are connected with input shafts of the air compressors in a transmission manner by the speed changers; compressed air outlets of the air compressors are connected with the air storage tanks by pipelines provided with one-way valves; the air storage tanks are connected with the pressure tank by pipelines provided with one-way valves; the solar heat collection pressure device comprises a solar heat collector and a heat exchanger; the heat exchanger is arranged in the pressure tank; and the two ends of the heat exchanger are arranged outside the pressure tank, and connected with the solar heat collector to form a closed loop. The power system has the advantages that compressed air is generated by wind energy, and then heated by solar energy; generated high pressure gas drives a power device to complete energy conversion; and a complementary effect of the wind energy and the solar energy is achieved in a physical energy link.

Description

Technical field: [0001] The invention relates to a power system, in particular to a wind energy, solar energy comprehensive conversion and energy storage power system. Background technique: [0002] Energy is the basic need for the existence of human society. With the development of human society, the total demand for energy is getting higher and higher, the consumption speed is getting faster and faster, and the requirements for energy quality and quantity are increasing day by day. At the same time, the per capita consumption of secondary energy (such as electricity, oil, etc.) in energy is proportional to people's living standards and happiness index at some levels. [0003] However, because there is still a certain gap in the level of scientific and technological civilization of human society, the source of most of the secondary energy consumed is basically non-renewable fossil energy. Although there is a lot of room for the use of nuclear energy, the current level of a...

Claims

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Application Information

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IPC IPC(8): H02S50/10
CPCH02S50/00Y02E10/50
Inventor 王振铎王金宝
Owner 鄂尔多斯市泰坤电器技术有限公司
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