A wind, solar, water storage multi-energy complementary water supply and power generation system suitable for cold region channels

Abstract

The present invention provides a wind, solar, water and storage multi-energy complementary water supply and power generation system suitable for cold-region channels, including a lower reservoir, an upper reservoir, a reversible pump-turbine, an electric generator, a solar photovoltaic component, a fan component, and a central control device; pipes are arranged at both ends of the reversible pump-turbine to connect the lower reservoir and the upper reservoir; the solar photovoltaic component is arranged in the upper reservoir, and the fan component is arranged on both sides of the lower reservoir; the reversible pump-turbine, the electric generator, the solar photovoltaic component, the fan component, and the central control device are all interconnected through power lines. The lower reservoir is a medium- and long-distance water conveyance channel in the mountainous area of ​​the cold region, and its cross-sectional form is a narrow and deep semicircular section at the lower part, and an inverted trapezoidal section is connected at the top. A heating cable is arranged at the intersection of the sections, and a semi-shielded rotatable photovoltaic cover is also arranged on the top. The present application can not only realize the multi-energy complementarity of wind, solar, water and storage, but also improve the water supply capacity of the cold-region channel during the ice period in winter, realize ice-free water conveyance in the channel, and solve the contradiction of industrial and agricultural water use.

Description

Technical Field

[0001] The present invention relates to the fields of water conservancy and new energy power generation, and specifically to a wind, solar, and water storage multi-energy complementary water supply and power generation system suitable for channels in cold regions. Background Art

[0002] Both wind power generation and photovoltaic power generation have strong randomness, volatility and intermittency, and the problem of absorption has always been very prominent. In particular, with the rapid expansion of the scale of grid connection, the risk of power abandonment caused by huge flexibility demand and the stable operation of high-proportion clean energy systems are becoming more and more prominent. Pumped storage power stations are currently the most mature, economically optimal, and most suitable for large-scale development of green, low-carbon, clean and flexible power sources. They will significantly improve the power grid's peak-shaving and valley-filling, frequency and phase modulation capabilities, and play an important role in ensuring the safety and stability of the power grid, enhancing the flexibility of system operation, and improving the absorption capacity of renewable energy. Multi-energy complementarity is internationally recognized as one of the feasible ways to solve the problem of new energy absorption. Therefore, how to truly and efficiently realize the multi-energy complementary operation of wind, solar, water and storage will become increasingly important.

[0003] For this reason, more and more designs of wind-solar-water complementary pumped-storage power generation devices have gradually emerged. For example, patent CN201533173U discloses a wind-solar-water complementary pumped-storage power generation peak-shaving device, which builds an upper water storage reservoir on the top of the mountain, builds a lower water storage reservoir in the valley, lays solar photovoltaic panels on the sunny slopes of the area, sets up wind farms above the upper water storage reservoir on the top of the mountain and in the surrounding areas where wind flow conditions are better, sets up pumped-storage power generation peak-shaving power stations between the upper water storage reservoir and the lower water storage reservoir, sets up water pumping stations in the lower water storage reservoir, and the inlet and outlet water pipes of the pumping station are connected to the upper and lower water storage reservoirs, respectively, and the inlet and outlet water pipes of the water pumping station are connected to the lower and upper water storage reservoirs, respectively. The utility model can not only enable solar energy and wind energy to be developed and stored on a large scale by converting them into water energy, but also enable traditional pumped-storage hydropower stations to complete the peak-shaving of the power grid without consuming or consuming less power grid electricity.

[0004] Although the above patent enables the device to have self-power and self-water supply capabilities, it does not design relevant water insulation devices for its reservoir. When the device is placed in cold areas for use, especially reservoirs in high-latitude areas will freeze in winter, which will affect the normal water supply operation. In serious cases, it will damage the reservoir and directly affect the safety and efficiency of the entire device.

[0005] Therefore, how to design a water supply and power generation system that can not only achieve multi-energy complementarity of wind, solar, water and storage, but also be suitable for high-latitude cold mountainous areas and effectively avoid the various adverse effects caused by water freezing has become a technical problem that needs to be urgently solved by technical personnel in this field. Summary of the invention

[0006] In order to achieve the above objectives, this application provides the following technical solutions:

[0007] A compound cross-section channel, the top of which is provided with a semi-shielded rotatable photovoltaic cover, the semi-shielded rotatable photovoltaic cover comprising a double-layer transparent hollow cover, a photovoltaic array, a horizontal support steel beam and a hydraulic power bracket;

[0008] Several supports are arranged on both sides of the compound section channel, one end of the horizontal support steel beam is connected to the support, one end of the double-layer transparent hollow cover is rotatably connected to the support, the hydraulic power support is used to connect the horizontal support steel beam and the double-layer transparent hollow cover, and the photovoltaic array is arranged in the middle of the double-layer transparent hollow cover.

[0009] Preferably, the cross-section of the compound cross-section channel is as follows: the lower portion is a narrow and deep semicircular cross-section, and the upper portion is connected to an inverted trapezoidal cross-section.

[0010] Preferably, heating cables are provided at the junction of the compound-section channel sections, including a main heating cable and a spare heating cable, both of which are fixed with stainless steel pipe supports.

[0011] Preferably, a thermal insulation layer is laid on the outside of the heating cable.

[0012] A wind, solar, water storage and multi-energy complementary water supply and power generation system for cold region channels using the above-mentioned compound cross-section channel, comprising a lower reservoir, an upper reservoir, a reversible pump turbine, an electric generator, a solar photovoltaic module, a fan module and a central control device;

[0013] Pipes are arranged at both ends of the reversible pump turbine to connect the lower reservoir and the upper reservoir; the solar photovoltaic module is arranged in the upper reservoir, and the fan module is arranged on both sides of the lower reservoir; the reversible pump turbine, the electric generator, the solar photovoltaic module, the fan module, and the central control device are all interconnected through power lines;

[0014] The lower reservoir is a medium- and long-distance water supply channel in cold mountainous areas, and the water supply channel adopts a compound section channel.

[0015] Preferably, the upper reservoir is a regulating reservoir built at intervals along the mountainous highlands.

[0016] Preferably, the lower reservoir is a linear channel, and the upper reservoir is a point-distributed reservoir, and the two constitute a water volume mutual regulation system.

[0017] Preferably, the solar photovoltaic module structure is an integrated buoy floating on water.

[0018] Preferably, the wind, solar, and water storage multi-energy complementary water supply and power generation system applicable to cold region channels is connected to the regional power grid as a whole through power lines.

[0019] Preferably, the electric energy generated by the solar photovoltaic assembly and the wind turbine assembly is partially transmitted to the regional power grid through the power line, and partially transmitted to the reversible pump turbine.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention provides a wind, solar, and water storage multi-energy complementary water supply and power generation system suitable for cold-region channels. By designing the cross-section of the water transfer channel into a compound cross-section with a narrow and deep lower opening and a wide and shallow upper opening, it can effectively cooperate with day and night temperature control and improve the thermal insulation performance of the channel water. A semi-shielded rotatable photovoltaic cover is also provided on the top of the channel, and the rotation angle can be adjusted according to the sun angle and wind direction to achieve the purpose of maximizing the area receiving light and blocking cold air from blowing into the channel. At the same time, heating cables are also provided at appropriate positions in the channel to start melting ice at extremely low temperatures, and combined with other measures as the final guarantee, ice-free water transfer in the channel is achieved.

[0022] 2. The present invention provides a wind, solar, and water storage multi-energy complementary water supply and power generation system suitable for cold-region channels. By building a regulating reservoir at a high terrain in the mountainous area and arranging a floating photovoltaic power generation array on the surface of the reservoir, it uses its power generation while reasonably utilizing its heat preservation and anti-evaporation functions. When the temperature is low or the water volume in the channel is insufficient, the water from the upper reservoir is released to replenish the water volume in the channel and increase the water temperature. At the same time, a reversible water pump turbine is used to achieve grid-connected power generation. This can effectively improve the water supply capacity of long-distance water supply channels during the winter ice period, ensure the safety of the channels, and realize ice-free water delivery in winter, meet urban water demand, solve the contradiction between industrial and agricultural water use, and promote regional economic development. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0024] Figure 1 This is a structural schematic diagram of a wind, solar, and water storage multi-energy complementary water supply and power generation system applicable to cold region channels provided by the present invention;

[0025] Figure 2 A schematic diagram of the wind-solar-water-storage multi-energy complementary principle of a wind-solar-water-storage multi-energy complementary water supply and power generation system applicable to cold region channels provided by the present invention;

[0026] Figure 3 This is a schematic diagram of a compound cross-section channel suitable for a wind, solar, water storage and multi-energy complementary water supply and power generation system in cold region channels provided by the present invention.

[0027] In the figure: 1. Lower reservoir; 2. Upper reservoir; 3. Reversible pump turbine; 4. Electric generator; 5. Solar photovoltaic module; 6. Fan module; 7. Central control equipment; 8. Pipeline; 9. Regional power grid; 10. Main heating cable; 11. Backup heating cable; 12. Stainless steel pipe support; 13. Insulation layer; 14. Semi-shielded rotatable photovoltaic cover; 141. Double-layer transparent hollow cover; 142. Photovoltaic array; 143. Horizontal support steel beam; 144. Hydraulic power support. DETAILED DESCRIPTION

[0028] To make the purpose, technical scheme and advantages of the embodiment of the present application clearer, the technical scheme in the embodiment of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, rather than all of the embodiments. In the following description, specific details such as specific configuration and components are provided only to help fully understand the embodiments of the present application. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, for clarity and brevity, the description of known functions and structures is omitted in the embodiment.

[0029] It should be understood that the references to "one embodiment" or "this embodiment" throughout the specification mean that the specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present application. Therefore, the references to "one embodiment" or "this embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0030] In addition, the present application may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0031] The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist at the same time. The term " / and" in this article describes another type of association object relationship, indicating that there can be two relationships. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the previous and next associated objects are in an "or" relationship.

[0032] The term "at least one" in this article is merely a description of the association relationship of associated objects, indicating that there may be three relationships. For example, at least one of A and B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0033] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusions.

[0034] Example 1

[0035] This embodiment introduces the structural composition of a wind, solar, and water storage multi-energy complementary water supply and power generation system suitable for cold region channels.

[0036] Please refer to Figure 1-2 , Figure 1 This is a structural schematic diagram of a wind, solar, and water storage multi-energy complementary water supply and power generation system suitable for cold region channels provided by the present invention. Figure 2 This is a schematic diagram of the wind-solar-water-storage multi-energy complementary principle of a wind-solar-water-storage multi-energy complementary water supply and power generation system suitable for cold region channels provided by the present invention.

[0037] A wind, solar, and water storage multi-energy complementary water supply and power generation system suitable for cold-region channels comprises a lower reservoir 1, an upper reservoir 2, a reversible pump-turbine 3, an electric generator 4, a solar photovoltaic component 5, a fan component 6, and a central control device 7. The reversible pump-turbine 3, the electric generator 4, the solar photovoltaic component 5, the fan component 6, and the central control device 7 are all interconnected through power lines, and the wind, solar, and water storage multi-energy complementary water supply and power generation system suitable for cold-region channels is connected to a regional power grid 9 as a whole through power lines.

[0038] The lower reservoir 1 is a medium- and long-distance water transfer channel in cold mountainous areas, and the upper reservoir 2 is a regulating reservoir built at intervals on high ground in the mountainous areas along the channel system according to local conditions. The linear channel and the point-distributed reservoirs form a water volume mutual regulation system.

[0039] Furthermore, the water delivery channel adopts a composite cross-section design with a narrow and deep lower opening and a wide and shallow upper opening;

[0040] Pipes 8 are provided at both ends of the reversible pump-turbine 3 to connect the lower reservoir 1 and the upper reservoir 2, and the electric generator 4 is arranged above the reversible pump-turbine 3; the reversible pump-turbine 3 rotates forward to pump water from the lower reservoir 1 into the upper reservoir 2 to store energy in the form of potential energy; when the upper reservoir 2 releases water, the reversible pump-turbine 3 reverses and the electric generator 4 realizes hydropower generation; the lower reservoir 1, the upper reservoir 2, the reversible pump-turbine 3 and the electric generator 4 constitute a pumped-storage power station.

[0041] The solar photovoltaic module 5 is arranged in the upper reservoir 2, and its structural type is an "integrated buoy" floating on water, which can not only keep the water in the upper reservoir 2 warm, but also generate electricity using the open water surface. After the electricity is connected to the grid, part of it is used for pumping water by the reversible pump turbine 3, and the rest is transmitted to the regional power grid 9.

[0042] The fan assembly 6 is arranged on both sides of the lower reservoir 1, and provides power to the reversible pump turbine 3 and the regional power grid 9 respectively after the line is connected to the grid.

[0043] The central control device 7 is used to control the operation and grid connection of the reversible pump turbine 3 and the electric generator 4 .

[0044] Furthermore, the water volume regulation of the high-level upper reservoir 2 on the long-distance lower reservoir 1 below is divided into two modes: normal temperature regulation and low temperature regulation. During the normal temperature water transfer period, the high-level upper reservoir 2 along the way is used as a water storage node to increase the overall water transfer volume of the water transfer project, reduce the load and risk of the lower reservoir 1 always operating at a high water level, and reduce the water storage pressure of the downstream regulating reservoir. During the low-temperature water transfer period, the flow water body of the lower reservoir 1 loses temperature and is prone to ice jams and ice dam disasters and channel frost heave damage. The water body is kept warm by the floating array photovoltaic and large water depth in the high-level upper reservoir 2, and the water body of the lower reservoir 1 is regularly replenished to achieve warming and ice melting and eliminate frost heave in the lower reservoir 1.

[0045] The present embodiment provides a wind, solar, and water storage multi-energy complementary water supply and power generation system suitable for cold-region channels. While the long-distance water transmission channel assumes the function of water resource allocation, it can also use the long line and the openness along the line to arrange distributed wind power generation equipment. A regulating reservoir is built in the high terrain of the mountainous area to improve the water resource storage and regulation capacity of the water transmission channel. A floating photovoltaic power generation array is arranged on the surface of the reservoir to generate electricity, and it also has the function of heat preservation and anti-evaporation. The upper and lower reservoirs are connected by a reversible pump-turbine unit and a pipeline. The wind and photovoltaic energy of the upper and lower reservoirs are partially used for the kinetic energy of the pump to pump water from the channel to the upper reservoir, and the remaining electricity is connected to the grid for power generation. When the temperature is low or the water volume in the channel is insufficient, the water in the upper reservoir is released to replenish the water volume in the channel and increase the water temperature. At the same time, a reversible pump-turbine is used to achieve grid-connected power generation.

[0046] Example 2

[0047] Based on the above-mentioned Example 1, this example introduces a cross-section design of a compound cross-section channel suitable for a wind, solar, water storage and multi-energy complementary water supply and power generation system in cold region channels.

[0048] Please refer to Figure 3 , Figure 3 This is a schematic diagram of a compound cross-section channel suitable for a wind, solar, water storage and multi-energy complementary water supply and power generation system in cold region channels provided by the present invention.

[0049] The cross-section of the compound-section channel is a narrow and deep semicircular section at the bottom connected to an inverted trapezoidal section at the top. A heating cable is arranged at the junction of the semicircular sections, including a main heating cable 10 and a spare heating cable 11, both of which are fixed with a stainless steel pipe support 12, one for use and one for backup to prevent damage.

[0050] Furthermore, the heating cables are laid longitudinally along the long-distance compound-section channel.

[0051] Furthermore, a heat-insulating layer 13 is laid on the outside of the heating cable. The heat-insulating layer 13 adopts an aluminum foil rubber-plastic heat-insulating tube, which has the advantages of fire prevention, sun protection, heat preservation, antifreeze and anti-aging.

[0052] Furthermore, a grounding device is provided and a leakage protector (not shown in the figure) is installed to take leakage prevention measures.

[0053] A semi-shielded rotatable photovoltaic cover 14 is also provided on the top of the compound section channel, including a double-layer transparent hollow cover 141, a photovoltaic array 142, a horizontal support steel beam 143 and a hydraulic power support 144; a number of supports (not marked in the figure) are provided on both sides of the compound section channel, one end of the horizontal support steel beam 143 is connected to the support, one end of the double-layer transparent hollow cover 141 is rotatably connected to the support, the hydraulic power support 144 is used to connect the horizontal support steel beam 143 and the double-layer transparent hollow cover 141, and the photovoltaic array 142 is arranged in the middle of the double-layer transparent hollow cover 141.

[0054] Furthermore, the double-layer transparent hollow cover plate 141 is arched and can cover 2 / 3 of the channel surface.

[0055] Furthermore, the hydraulic power support 144 is used to adjust the angle of the double-layer transparent hollow cover 141 according to the sun angle and wind direction, so as to effectively block cold air from blowing into the channel while ensuring that the photovoltaic array 142 receives light in the largest area.

[0056] Furthermore, the photovoltaic arrays 142 are arranged at intervals, so that the intervals between the photovoltaic arrays 142 in the double-layer transparent hollow cover plate 141 can be penetrated by sunlight, thereby irradiating and heating the canal water.

[0057] Furthermore, the photovoltaic array 142 is connected to the hydraulic power support 144 and the heating cable through a power line.

[0058] A compound cross-section channel designed in this embodiment adopts a semicircular cross-section with a narrow and deep lower part, which can meet the optimal hydraulic cross-section characteristics. Compared with cross-sections of other shapes, it has a larger water flow rate under the same water flow area, so it can reduce the water surface area and reduce heat loss, which is beneficial to the insulation of water bodies during ice periods; the trapezoidal cross-section above can make the water surface area increase as the water level rises, and has a larger area to receive heat when the water level is raised during the day. A semi-shielded rotatable photovoltaic cover is also provided on the top of the channel, which can cover 2 / 3 of the channel surface and can adjust the rotation angle according to the sun angle and wind direction to achieve the purpose of maximizing the area receiving light and blocking cold air from blowing into the channel. At the same time, heating cables are also provided at appropriate positions in the channel to start melting ice at extremely low temperatures, and combined with other measures as the final guarantee to achieve ice-free water delivery in the channel.

[0059] Example 3

[0060] Based on the above-mentioned Embodiment 1 and Embodiment 2, this embodiment introduces two water and electricity regulation modes applicable to the wind, solar, water and storage multi-energy complementary water supply and power generation system in cold regions:

[0061] Mode 1: For seasonal water diversion projects, water diversion has peak and valley water volume. During the peak water diversion period, the temperature is high and there is no freezing problem. At this time, the long-term storage method of "night pumping and slow release" is adopted, that is, pumping and storing water during the night electricity valley. The purpose of pumping is to reduce the operating water level of the channel to avoid the threat of flooding caused by exceeding the normal water level of the channel when the water flow is large. When the water volume decreases during the valley period of water diversion at the head of the canal, water is released from the upper reservoir to generate electricity to supplement the water volume in the channel.

[0062] Mode 2: During low-temperature glacial periods, a short-term regulation method of "pumping during the day and discharging at night" is used, that is, pumping water before nightfall and releasing water in the early morning. The purpose at this time is to keep warm. During the day, the canal water runs at a high water level in the channel, absorbing solar radiation heat through the semi-permeable cover plate on the top and the water surface; at night, water is pumped into the reservoir to use the floating photovoltaic array covered by the upper reservoir for insulation, lowering the water level in the channel to a compound cross-section arc section, narrowing the water surface and reducing heat loss. Water is released into the channel again in the early morning, using the high-temperature water in the upper reservoir to melt the ice crystals and pore ice in the channel foundation soil generated when the water body runs at night.

[0063] The present embodiment provides a wind, solar, water and storage multi-energy complementary water supply and power generation system suitable for cold-region channels, which adopts distributed power generation, and combines the wind, solar, water and storage multi-energy complementarity with the dual-storage and dual-regulation technical solution to take advantage of each other's strengths and overcome each other's weaknesses, and can maximize the benefits of long-distance water supply channels.

[0064] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wind, solar, water storage and multi-energy complementary water supply and power generation system suitable for cold region channels, It is characterized in that The invention comprises a lower reservoir (1), an upper reservoir (2), a reversible pump turbine (3), an electric generator (4), a solar photovoltaic module (5), a fan module (6), and a central control device (7); pipelines (8) are arranged at both ends of the reversible pump turbine (3) for connecting the lower reservoir (1) and the upper reservoir (2); the solar photovoltaic module (5) is arranged in the upper reservoir (2), and its structural type is an integrated floating buoy on water; the fan module (6) is arranged on both sides of the lower reservoir (1); the reversible pump turbine (3), the electric generator (4), the solar photovoltaic module (5), the fan module (6), and the central control device (7) are all connected to each other through power lines; The lower reservoir (1) is a medium- and long-distance water transmission channel in the cold mountainous area, which is a linear channel. The upper reservoir (2) is a regulating reservoir built at intervals on the highlands along the mountainous area, which is a point-distributed reservoir. The two constitute a water volume mutual regulation system. The water delivery channel adopts a compound cross-section channel, and the cross-section form is: the lower part is a narrow and deep semicircular cross-section, and the upper part is connected to an inverted trapezoidal cross-section; a semi-shielded rotatable photovoltaic cover plate (14) is arranged on the top, including a double-layer transparent hollow cover plate (141), a photovoltaic array (142), a horizontal support steel beam (143) and a hydraulic power support (144); A plurality of supports are arranged on both sides of the compound cross-section channel, and one end of the horizontal support steel beam (143) is connected to the support; the double-layer transparent hollow cover plate (141) is arched, and one end thereof is rotatably connected to the support; the hydraulic power support (144) is used to connect the horizontal support steel beam (143) and the double-layer transparent hollow cover plate (141), and the photovoltaic array (142) is arranged in the middle of the double-layer transparent hollow cover plate (141); A heating cable is provided at the intersection of the compound section channel sections and is arranged longitudinally along the long-distance compound section channel; The photovoltaic array (142) is connected to the hydraulic power support (144) and the heating cable through a power line; The electric generator (4) is arranged above the reversible pump turbine (3); the lower reservoir (1), the upper reservoir (2), the reversible pump turbine (3) and the electric generator (4) form a pumped storage power station.

2. According to claim 1, a wind, solar, water storage multi-energy complementary water supply and power generation system suitable for cold region channels, It is characterized in that The heating cables include a main heating cable (10) and a spare heating cable (11), both of which are fixed by a stainless steel pipe bracket (12).

3. According to claim 2, a wind, solar, water storage multi-energy complementary water supply and power generation system suitable for cold region channels, It is characterized in that A thermal insulation layer (13) is laid on the outside of the heating cable.

4. A wind, solar, water storage multi-energy complementary water supply and power generation system suitable for cold region channels according to any one of claims 1 to 3, It is characterized in that The wind, solar, and water storage multi-energy complementary water supply and power generation system applicable to cold-region channels is connected as a whole to the regional power grid (9) via power lines.

5. According to claim 4, a wind, solar, water storage multi-energy complementary water supply and power generation system suitable for cold region channels, It is characterized in that The electric energy generated by the solar photovoltaic assembly (5) and the wind turbine assembly (6) is partially transmitted to the regional power grid (9) through the power line, and partially transmitted to the reversible water pump turbine (3).

Images