Solar energy, hydrogen energy and wind energy complementary power supply system

Abstract

The utility model provides a solar energy, hydrogen energy and wind energy complementary power supply system, which comprises a solar panel group and a wind turbine, the wind turbine is communicated with a pneumatic generator through an air compressor, and the pneumatic generator is connected with a constant-voltage shunt circuit through a rectifier and respectively supplies power to electrolysis equipment and an energy storage battery. The solar panel group is connected with the constant-voltage shunt circuit and supplies power to the water electrolysis equipment and the energy storage battery respectively, an oxygen outlet of the water electrolysis equipment outputs oxygen, and the energy storage battery stores redundant electric energy; a hydrogen outlet of the water electrolysis equipment is connected with the hydrogen compression tank through the dehumidifier, the air compressor is connected with the pneumatic generator through the air compression tank, and the air compression tank and the hydrogen compression tank are communicated with the fuel cell through the electromagnetic valve so as to provide solid hydrogen and oxygen for the fuel cell. According to the device, solar energy, hydrogen energy and wind energy can be complemented, oxygen supply of the fish pond is guaranteed, and meanwhile enough domestic electricity is provided.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-power source complementation, and in particular to a power supply system that complements solar energy, hydrogen energy and wind energy. Background Art

[0002] With the rise of fish farming technology in arid areas, fish farms have gradually increased. Fish farms cover a large area and are located in arid areas far away from cities. Fish farmers build houses next to fish ponds and need to look after and feed the fish in the ponds all day long. However, the fish density in the fish ponds is high, and the fish ponds need to be supplied with oxygen every day. In addition, fish farmers also need a lot of electricity for daily life and feeding the fish, which increases the cost of fish farming. Utility Model Content

[0003] In view of this, the problem to be solved by the utility model is to provide a power supply system that complements solar energy, hydrogen energy and wind energy, which can complement the energy of solar energy, hydrogen energy and wind energy, ensure oxygen supply to the fish pond, and provide sufficient electricity for daily use.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A power supply system that complements solar energy, hydrogen energy and wind energy, comprising a solar power source PV1 and a wind power source PV2 for power generation, wherein the solar power source PV1 comprises a solar panel group, and the wind power source PV2 comprises a wind turbine, wherein the wind turbine is connected to an air-driven generator through an air compressor to drive the air-driven generator to operate, wherein the air-driven generator is connected to a constant-voltage shunt circuit through a rectifier, and the solar power source PV1 and the wind power source PV2 supply power to a water electrolysis device and an energy storage battery respectively through the constant-voltage shunt circuit;

[0006] The oxygen outlet of the water electrolysis equipment outputs oxygen to supply oxygen to the fish pond, the hydrogen outlet of the water electrolysis equipment is connected to the hydrogen compression tank through a dehumidifier, the air compressor is connected to the pneumatic generator through the air compression tank, and the air compression tank and the hydrogen compression tank are connected to the fuel cell through an electromagnetic valve to provide hydrogen and oxygen to the fuel cell.

[0007] Furthermore, the fuel cell and the energy storage battery are both connected to the household appliances via a sine inverter to supply power to the household appliances.

[0008] Furthermore, the air compression tank is connected to the fuel cell through the first air outlet, and the air outlet of the hydrogen compression tank and the first air outlet of the air compression tank are respectively provided with a first pressure reducing valve and a second pressure reducing valve to respectively provide the fuel cell with hydrogen and oxygen of fixed pressure.

[0009] Furthermore, a first electromagnetic reversing valve is arranged between the first pressure reducing valve and the hydrogen compression tank, and a second electromagnetic reversing valve is arranged between the second pressure reducing valve and the first air outlet, and hydrogen and air are controlled by the first electromagnetic reversing valve and the second electromagnetic reversing valve.

[0010] Furthermore, the air compression tank is connected to the pneumatic generator through a second air outlet, and a pneumatic one-way valve is provided at the second air outlet to provide high-pressure air to the pneumatic generator.

[0011] Furthermore, the constant voltage shunt circuit includes a power supply, a first shunt circuit and a second shunt circuit with completely identical circuit connection structures;

[0012] The first shunt circuit package is connected in series with the capacitor C1 and the super capacitor C2 between the positive and negative electrodes of the power supply, and the resistor R5, the diode D1 and the resistor R6 are connected in series between the positive and negative electrodes of the power supply, and the control end of the diode D1 is connected to one end of the resistor R1, and the other end is connected between the super capacitor C2 and the capacitor C1;

[0013] A resistor R3 is connected in series between the positive electrode of the super capacitor C2 and the collector of the transistor Q1, a water electrolysis device is connected in series between the emitter of the transistor Q3 and the negative electrode of the super capacitor C2, and the collector of the transistor Q3 is connected between the diode D1 and the resistor R6.

[0014] Furthermore, the resistor R1 is a variable resistor to adjust the discharge voltage of the supercapacitor C2.

[0015] Furthermore, the second shunt circuit package includes the charged supercapacitor C7, transistor Q2, diode D2 and resistor R2 for controlling the diode to be turned on, and the discharge voltage of the supercapacitors C2 and C7 is adjusted by adjusting the resistor R2 and the resistor R1.

[0016] Furthermore, the power supply includes a solar power source PV1 and a wind power source PV2 connected in series, which accelerates the charging rate of the supercapacitors C2 and C7.

[0017] The advantages and positive effects of the utility model are:

[0018] By setting a rectifier, the AC power output by the pneumatic generator is converted into DC power, so that the voltages of solar power supply and wind power supply complement each other, the pressure of the power supply is increased, and the voltage difference between the power supply and the supercapacitors C2 and C7 in the constant voltage shunt circuit is increased, thereby improving the power supply efficiency of the power supply system and storing more electrical energy in the energy storage battery.

[0019] The energy storage battery is connected to household devices through a sine inverter and can power all types of household devices.

[0020] By setting the resistance values ​​of resistors R3 and R4 adjustable in the constant voltage shunt circuit, the resistance values ​​of resistors R3 and R4 can be adjusted according to the actual voltage of the power supply, and the discharge voltages of supercapacitors C2 and C7 in the first shunt circuit and the second shunt circuit can be changed, so as to continuously supply power to the water electrolysis equipment and increase the daily oxygen supply in the fish pond.

[0021] A hydrogen compression tank is provided to store the hydrogen output by the water electrolysis equipment. The hydrogen compression tank and the air compression tank are connected to the fuel cell. The air compression tank is connected to the fuel cell through a pressure reducing valve. When the gas in the air compression tank is higher than a threshold value, the fuel cell can be automatically supplied with gas, thereby realizing the energy complementarity of wind energy and hydrogen energy. There is no need to use power equipment to provide air to the fuel cell, thereby realizing the complementarity of hydrogen energy and wind energy and saving the energy loss caused by fuel cell power generation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 This is an overall system structure diagram of a solar energy, hydrogen energy and wind energy complementary power supply system of the utility model;

[0024] Figure 2 The utility model discloses a constant voltage shunt circuit diagram in a power supply system that complements solar energy, hydrogen energy and wind energy. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0027] The utility model provides a power supply system that complements solar energy, hydrogen energy and wind energy, including a solar power source PV1 and a wind power source PV2. Figure 1As shown, the solar power source PV1 includes a solar panel group that converts solar energy into direct current. The solar panel group is electrically connected to the water electrolysis device and the energy storage battery through a constant voltage shunt circuit to supply power to the water electrolysis device and the energy storage battery.

[0028] The wind power source PV2 includes a wind turbine, an air compressor, an air pressure tank and a pneumatic generator. The wind turbine is mechanically connected to the air compressor, the air compressor is connected to the air pressure tank through a pipeline, and the air pressure tank is connected to the pneumatic generator through a pipeline, which converts wind energy into kinetic energy, kinetic energy into pressure energy, and pressure energy into electrical energy in sequence. It can convert low wind energy into air pressure energy, and has high energy conversion efficiency.

[0029] Because conventional wind power generation equipment directly converts wind energy into electrical energy, it cannot drive wind power generation equipment when the wind is insufficient, resulting in a waste of low wind energy. In order to improve the energy conversion efficiency of wind power in the low wind season, the wind power required to drive the air compressor is low. The wind energy is first converted into pressure energy, and then the pressure energy is converted into electrical energy. As much wind energy as possible is converted into pressure energy. When the pressure in the air compression tank is sufficient, the pneumatic generator is driven to operate, and the pressure energy is converted into electrical energy, thereby improving the power generation efficiency of wind energy.

[0030] The pneumatic generator is connected to the constant-voltage shunt circuit through a rectifier to convert the alternating current output by the pneumatic generator into direct current, which is then used to supply power to the water electrolysis device and the energy storage battery respectively through the constant-voltage shunt circuit.

[0031] The water electrolysis equipment includes a hydrogen port for outputting hydrogen and an oxygen port for outputting oxygen. The oxygen output from the oxygen port supplies oxygen to the fish pond; the hydrogen port is connected to the hydrogen compression tank through a dehumidifier, and the hydrogen compression tank and the air compression tank are both connected to the fuel cell pipeline to provide hydrogen and oxygen to the fuel cell.

[0032] An embodiment of the present application is that both the fuel cell and the energy storage battery are connected to the household appliance via a sine wave inverter to provide electrical energy to the household appliance.

[0033] The air inlet of the air compression tank is connected to the air compressor, and the air compression tank includes a first air outlet, which is connected to the fuel cell through the electromagnetic reversing valve and the pressure reducing valve in sequence. When the electromagnetic reversing valve is turned on, the high-pressure air is reduced in pressure by the pressure reducing valve to supply air to the fuel cell at a constant pressure. The above method can automatically provide sufficient air to the fuel cell without the need for a power mechanism to absorb air, thereby saving the use of electric energy.

[0034] The air compression tank includes a second air outlet, which is connected to the pneumatic generator through a pneumatic one-way valve. When the pressure in the air compression tank reaches a threshold, the one-way valve is turned on to provide high-pressure gas to the pneumatic generator and reduce the energy consumption of low-pressure gas. At the same time, air can always be stored in the air compression tank to provide sufficient air for the fuel cell.

[0035] A compression pump is arranged between the air inlet of the hydrogen compression tank and the dehumidifier to compress the hydrogen and store it in the hydrogen compression tank. The air outlet of the hydrogen compression tank is connected to the fuel cell through an electromagnetic reversing valve and a pressure reducing valve to provide hydrogen to the fuel cell. When the hydrogen pressure in the hydrogen compression tank is lower than the opening pressure of the pressure reducing valve, the power supply is automatically stopped.

[0036] One embodiment of the present application is that the output end of the fuel cell is electrically connected to a circuit monitoring circuit to monitor the output current of the fuel cell. When the output current of the fuel cell is detected to be zero or lower than a preset value, it indicates that the pressure reducing valve at the outlet of the hydrogen compression tank or the oxygen compression tank is automatically closed, and the fuel cell is controlled to stop operating. At the same time, the reversing valve is controlled to reverse and stop providing hydrogen and oxygen.

[0037] like Figure 2 As shown, the constant voltage shunt circuit includes a power supply, a first shunt circuit and a second shunt circuit with completely identical circuit connection structures;

[0038] The power supply includes a wind power supply PV2 and a solar power supply PV1 connected in series. The first shunt circuit includes a capacitor C1 and a super capacitor C2. The capacitor C1 and the super capacitor C2 are connected in series between the positive and negative poles of the power supply in sequence. A resistor R5, a diode D1 and a resistor R6 are also connected in series between the positive and negative poles of the power supply in sequence.

[0039] A resistor R3 is connected in series between the positive electrode of the super capacitor C2 and the collector of the transistor Q1 to adjust the output current of the super capacitor. A water electrolysis device is connected in series between the negative electrode of the super capacitor C2 and the emitter of the transistor Q1. When the transistor Q1 is turned on, a constant power supply is supplied to the water electrolysis device.

[0040] The base of transistor Q1 is connected between diode D1 and resistor R6, the control end of diode D1 is connected to one end of resistor R1, and the other end is connected between super capacitor C2 and capacitor C1. When the pressure of super capacitor C2 reaches the set value, when diode D1 is turned on, super capacitor C2 discharges to power the water electrolysis equipment.

[0041] The second shunt circuit includes a super capacitor C7 for charging, a transistor Q2, a diode D2 and a resistor R2 for controlling the diode to conduct. The supply voltage of the super capacitor C7 and the super capacitor C2 is controlled by controlling the resistance values ​​of the resistors R1 and R2.

[0042] An embodiment of the present application is: resistors R1 and R2 are both variable resistors. When the fish pond uses less oxygen, the resistance values ​​of resistors R1 and R2 are adjusted to increase the discharge voltage of supercapacitor C2, which can reduce the discharge frequency of supercapacitor C2; reduce the discharge voltage of supercapacitor C7, increase the discharge frequency of supercapacitor C7, ensure oxygen supply while storing excess electrical energy to avoid waste of electrical energy.

[0043] Affected by environmental factors, the output power of wind power source PV2 and solar power source PV1 are unstable. Wind power source PV2 and solar power source PV1 are connected in series, and the voltage of wind power source PV2 and solar power source PV1 is accumulated, which can increase the voltage difference between the power supply and super capacitors C2 and C7, and improve the charging rate. One embodiment of the present application is: the solar panel group retains a plurality of solar panels, and the solar panels are connected in series to increase the voltage difference between the two ends of solar power source PV1.

[0044] The above embodiments of the utility model are described in detail, but the above contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of the utility model should still fall within the scope of this patent.

Claims

1. A power supply system that complements solar energy, hydrogen energy and wind energy, characterized in that: It includes a solar power source PV1 and a wind power source PV2 for generating electricity, wherein the solar power source PV1 includes a solar panel group, and the wind power source PV2 includes a wind turbine, wherein the wind turbine is connected to an air-driven generator through an air compressor to drive the air-driven generator to operate, and the air-driven generator is connected to a constant-voltage shunt circuit through a rectifier, and the solar power source PV1 and the wind power source PV2 supply power to a water electrolysis device and an energy storage battery respectively through the constant-voltage shunt circuit; The oxygen outlet of the water electrolysis equipment outputs oxygen to supply oxygen to the fish pond, the hydrogen outlet of the water electrolysis equipment is connected to the hydrogen compression tank through a dehumidifier, the air compressor is connected to the pneumatic generator through the air compression tank, and the air compression tank and the hydrogen compression tank are connected to the fuel cell through an electromagnetic valve to provide hydrogen and oxygen to the fuel cell.

2. A solar energy, hydrogen energy and wind energy complementary power supply system according to claim 1, characterized in that: The fuel cell and the energy storage battery are both connected to the household appliances via a sine inverter to supply power to the household appliances.

3. The solar energy, hydrogen energy and wind energy complementary power supply system according to claim 1 is characterized in that: The air compression tank is connected to the fuel cell through the first air outlet. The air outlet of the hydrogen compression tank and the first air outlet of the air compression tank are respectively provided with a first pressure reducing valve and a second pressure reducing valve to respectively provide the fuel cell with hydrogen and oxygen at fixed pressures.

4. A solar energy, hydrogen energy and wind energy complementary power supply system according to claim 3, characterized in that: A first electromagnetic reversing valve is arranged between the first pressure reducing valve and the hydrogen compression tank, and a second electromagnetic reversing valve is arranged between the second pressure reducing valve and the first air outlet, and hydrogen and air are controlled by the first electromagnetic reversing valve and the second electromagnetic reversing valve.

5. The solar energy, hydrogen energy and wind energy complementary power supply system according to claim 1 is characterized in that: The air compression tank is connected to the pneumatic generator through a second air outlet, and a pneumatic one-way valve is provided at the second air outlet to provide high-pressure air to the pneumatic generator.

6. The solar energy, hydrogen energy and wind energy complementary power supply system according to claim 1, characterized in that: The constant voltage shunt circuit comprises a power supply, a first shunt circuit and a second shunt circuit with completely identical circuit connection structures; The first shunt circuit package is connected in series with the capacitor C1 and the super capacitor C2 between the positive and negative electrodes of the power supply, and the resistor R5, the diode D1 and the resistor R6 are connected in series between the positive and negative electrodes of the power supply, and the control end of the diode D1 is connected to one end of the resistor R1, and the other end is connected between the super capacitor C2 and the capacitor C1; A resistor R3 is connected in series between the positive electrode of the super capacitor C2 and the collector of the transistor Q1, a water electrolysis device is connected in series between the emitter of the transistor Q3 and the negative electrode of the super capacitor C2, and the collector of the transistor Q3 is connected between the diode D1 and the resistor R6.

7. A solar energy, hydrogen energy and wind energy complementary power supply system according to claim 6, characterized in that: The resistor R1 is a variable resistor to adjust the discharge voltage of the super capacitor C2.

8. The solar energy, hydrogen energy and wind energy complementary power supply system according to claim 6, characterized in that: The second shunt circuit package includes a super capacitor C7, a transistor Q2, a diode D2 and a resistor R2 for controlling the diode to be turned on for charging, and the discharge voltage of the super capacitors C2 and C7 is adjusted by adjusting the resistor R2 and the resistor R1.

9. The solar energy, hydrogen energy and wind energy complementary power supply system according to claim 6, characterized in that: The power supply includes a solar power source PV1 and a wind power source PV2 connected in series, which accelerates the charging rate of the supercapacitors C2 and C7.

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