Power generation system, control method for power generation system, electronic apparatus, and storage medium

Abstract

The invention discloses a power generation system, a control method of the power generation system, an electronic apparatus, and a storage medium. The power generation system comprises a fuel cell, a power-adjustable energy consumption device and a controller, the electric output end of the fuel cell is electrically connected with an external power grid and the input end of the energy consumption device, the controller is in communication connection with the energy consumption device, the fuel cell generates power at constant power, and the controller is in communication connection with the energy consumption device. And the controller adjusts the operation power of the energy consumption device according to the electric power of the external power grid. In the power generation system of the fuel cell, the power-adjustable energy consumption device is additionally arranged, the fuel cell generates power by adopting constant power, and the operation power of the energy consumption device is adjusted according to the electricity utilization power of the external power grid, so that the stable and long-term operation of the power generation system is effectively ensured on the basis of meeting the electricity utilization requirement of a user.

Description

Technical Field

[0001] The present invention relates to the technical field related to fuel cells, and in particular to a power generation system, a control method for the power generation system, an electronic device and a storage medium. Background Art

[0002] Solid oxide fuel cells have broad application prospects in the field of distributed energy generation. As a fixed energy source, in order to reduce energy waste, it is necessary to adjust the power generation according to the user's electricity demand. The existing technology is a coupling of multiple power generation methods, which adjusts the power generation by reducing or increasing the number of started power generation devices, or adjusting the system input gas volume, output current, etc. However, the start and stop of the device or frequent adjustment of the working conditions will affect the life of the device. Summary of the invention

[0003] Based on this, it is necessary to provide a power generation system, a control method for the power generation system, an electronic device and a storage medium to address the technical problem that the power generation system of the fuel cell in the prior art adjusts the power generation due to the adjustment of the user's power demand, which affects the life of the device.

[0004] The present invention provides a power generation system, comprising: a fuel cell, a power-adjustable energy consumption device and a controller, wherein the electrical output end of the fuel cell is electrically connected to an external power grid and an input end of the energy consumption device respectively, the controller is communicatively connected to the energy consumption device, the fuel cell generates electricity using a constant power, and the controller adjusts the operating power of the energy consumption device according to the power consumption of the external power grid.

[0005] Furthermore, it also includes: a heat storage device, the energy consumption device is a first heating device, the first heating device heats the liquid entering the heat storage device from the first water inlet end of the heat storage device, and the first water inlet end of the heat storage device is connected to a first water source.

[0006] Furthermore, it also includes: a reformer, a heat exchanger, a water cooler, and a burner, the air outlet ends of the reformer and the heat exchanger are respectively connected to the air inlet end of the fuel cell, the air outlet end of the fuel cell is respectively connected to the medium input end of the reformer and the first medium input end of the heat exchanger, the medium output end of the reformer and the first medium output end of the heat exchanger are respectively connected to the burner, the output end of the burner is connected to the second medium input end of the heat exchanger, the second medium output end of the heat exchanger is connected to the air inlet end of the water cooler, the water outlet end of the water cooler is connected to the second water inlet end of the heat storage device, and the water inlet end of the water cooler is connected to a second water source.

[0007] Furthermore, it also includes a steam generator, wherein the water inlet end of the steam generator is connected to a third water source, the output end of the burner is connected to the medium input end of the steam generator, the medium output end of the steam generator is connected to the second medium input end of the heat exchanger, the water vapor output end of the steam generator is connected to the water vapor input end of the reformer, and the natural gas input end of the reformer is connected to a natural gas source.

[0008] Furthermore, it also includes: a steam generating device, a low-temperature steam storage device and a superheated steam generating device, the water inlet end of the steam generating device is connected to a third water source, the output end of the steam generating device is connected to the low-temperature steam storage device and the superheated steam generating device in sequence, the output end of the burner is connected to the medium input end of the superheated steam generating device, the medium output end of the superheated steam generating device is connected to the second medium input end of the heat exchanger, the water vapor output end of the superheated steam generating device is connected to the water vapor input end of the reformer, and the natural gas input end of the reformer is connected to a natural gas source.

[0009] Furthermore, it also includes: the steam generating device includes a solar collector and a second heating device, and the electrical output end of the fuel cell is also electrically connected to the second heating device.

[0010] The present invention provides a control method for the power generation system as described above, comprising:

[0011] Controlling the fuel cell of the power generation system to generate electricity at a constant power;

[0012] Obtaining the power consumption of the external power grid;

[0013] The operating power of the energy consuming device is adjusted to be a difference between the constant power and the power consumption.

[0014] Furthermore, the power generation system further includes: a heat storage device, the energy consumption device is a second heating device, the energy consumption device heats a first water inlet end of the heat storage device, the first water inlet end of the heat storage device is connected to a first water source, and the method further includes:

[0015] The flow rate of the first water source is adjusted according to the operating power, the initial water temperature of the first water source, and the target water temperature.

[0016] The present invention provides an electronic device, comprising:

[0017] at least one processor; and,

[0018] a memory communicatively connected to at least one of the processors; wherein,

[0019] The memory stores instructions that can be executed by at least one of the processors. The instructions are executed by at least one of the processors so that the at least one of the processors can execute the control method of the power generation system as described above.

[0020] The present invention provides a storage medium, wherein the storage medium stores computer instructions. When a computer executes the computer instructions, the storage medium is used to execute all steps of the control method of the power generation system as described above.

[0021] The present invention adds a power-adjustable energy-consuming device to the power generation system of the fuel cell. The fuel cell generates electricity at a constant power and adjusts the operating power of the energy-consuming device according to the power consumption of the external power grid, thereby effectively ensuring the stable and long-term operation of the power generation system on the basis of meeting the power consumption of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of a power generation system according to an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of a power generation system according to another embodiment of the present invention;

[0024] Figure 3 A schematic diagram of a power generation system according to another embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the reformer intake;

[0026] Figure 5 This is a working flow chart of a control method of a power generation system as described above according to an embodiment of the present invention;

[0027] Figure 6 A working flow chart of a control method of a power generation system as described above according to a preferred embodiment of the present invention;

[0028] Figure 7 The figure is a schematic diagram of the hardware structure of an electronic device of the present invention.

[0029] Marking Description

[0030] 1- fuel cell; 2- energy consumption device; 3- heat storage device; 4- reformer; 5- heat exchanger; 6- water cooler; 7- burner; 8- steam generator; 9- steam generating device; 10- low temperature steam storage device; 11- superheated steam generating device; 12- solar collector; 13- second heating device; 14- inverter; 15- purifier; 16- gas conveyor. DETAILED DESCRIPTION

[0031] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. The same components are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0032] like Figure 1 The figure shows a system schematic diagram of a power generation system according to an embodiment of the present invention, comprising: a fuel cell 1, a power-adjustable energy-consuming device 2, and a controller (not shown in the figure), wherein the electrical output end of the fuel cell 1 is electrically connected to an external power grid and an input end of the energy-consuming device 2, respectively, the controller is communicatively connected to the energy-consuming device 2, the fuel cell 1 generates electricity using a constant power, and the controller adjusts the operating power of the energy-consuming device 2 according to the power consumption of the external power grid.

[0033] Specifically, the fuel cell 1 is preferably a solid oxide fuel cell (SOFC). Natural gas and water vapor are mixed and then enter the fuel cell 1 to react with air. The current output during the reaction of the fuel cell 1 is divided into two parallel circuits, one of which is combined with an external power grid such as a power grid (grid-connected) to supply power to users, and the other is connected to a power-adjustable energy-consuming device 2.

[0034] In some embodiments, the direct current output by the fuel cell 1 is converted into alternating current by the inverter 14 and then output.

[0035] The fuel cell 1 in the power generation system generates electricity continuously in a single working condition, and its power generation is determined according to the local maximum power consumption. When the power consumption of the external power grid is lower than the power consumption during the peak power consumption, the controller reduces the grid-connected power by increasing the output power of the energy consumption device 2.

[0036] In some embodiments, the energy consumption device 2 is a heating device, such as a heating cable, or a microwave heating device.

[0037] The present invention adds a power-adjustable energy-consuming device to the power generation system of the fuel cell. The fuel cell generates electricity at a constant power and adjusts the operating power of the energy-consuming device according to the power consumption of the external power grid, thereby effectively ensuring the stable and long-term operation of the power generation system on the basis of meeting the power consumption of users.

[0038] like Figure 1The system schematic diagram of a power generation system according to an embodiment of the present invention is shown, comprising: a fuel cell 1, an energy consumption device 2 with adjustable power, a heat storage device 3, a reformer 4, a heat exchanger 5, a water cooler 6, a burner 7 and a controller (not shown in the figure), wherein the electrical output end of the fuel cell 1 is electrically connected to an external power grid and an input end of the energy consumption device 2, respectively; the energy consumption device 2 is a first heating device, and the first heating device heats the liquid entering the heat storage device 3 from a first water inlet end 31 of the heat storage device 3; the first water inlet end of the heat storage device 3 is connected to a first water source; the gas outlet end 55 of the reformer 4 and the heat exchanger 5 are electrically connected to the external power grid and the ... The air inlet end of the fuel cell 1 is connected, the air outlet end of the fuel cell 1 is respectively connected to the medium input end 43 of the reformer 4 and the first medium input end 51 of the heat exchanger 5, the medium output end 44 of the reformer 4 and the first medium output end 52 of the heat exchanger 5 are respectively connected to the burner 7, the output end of the burner 7 is connected to the second medium input end 53 of the heat exchanger 5, the second medium output end 54 of the heat exchanger 5 is connected to the air inlet end 61 of the water cooler 6, the water outlet end 62 of the water cooler 6 is connected to the second water inlet end 32 of the heat storage device 3, and the water inlet end 63 of the water cooler 6 is connected to the second water source;

[0039] The controller is in communication connection with the energy consuming device 2 , the fuel cell 1 generates electricity using a constant power, and the controller adjusts the operating power of the energy consuming device 2 according to the power consumption of the external power grid.

[0040] Specifically, natural gas is mixed with water vapor and enters the reformer 4, and after reforming, enters the fuel cell 1 to react with air; the high-temperature gas after the reaction enters the reformer 4 from the medium input end 43 of the reformer 4 to heat the reformer 4, and is then discharged from the medium output end 44 and enters the burner 7 to undergo a combustion reaction with the remaining air.

[0041] Air is introduced into the heat exchanger 5 from the air inlet end 56 of the heat exchanger 5 by the blower for heating, and then discharged from the air outlet end 55 of the heat exchanger 5 to enter the fuel cell 1 for reaction; the high-temperature gas after the reaction enters the heat exchanger 5 from the first medium input end 51 of the heat exchanger 5 to cool down, and then is discharged from the first medium output end 52 to enter the burner 7 for combustion reaction.

[0042] The tail gas after the reaction in the burner 7 enters the heat exchanger 5 from the second medium input end 53 of the heat exchanger for cooling and is discharged from the second medium output end 54. It enters the water cooler 6 through the air inlet end 61 of the water cooler 6 and heats the tap water of the second water source to a preset temperature, such as 80°C in the water cooler 6. The remaining low-temperature tail gas is discharged from the air outlet end 64 of the water cooler 6. The water inlet end 63 of the water cooler 6 is connected to the second water source, and the heated tap water enters the heat storage device 3 through the water outlet end 62 and the second water inlet end 32 of the heat storage device 3. The heat storage device 3 is preferably a water tank.

[0043] The direct current output during the reaction of the fuel cell 1 is converted into alternating current by the inverter 14 and is divided into two parallel circuits, one of which is combined with the power supply grid to supply power to the user, and the other is a power-adjustable energy-consuming device 2, which in this embodiment is a first heating device, such as a heating cable, or a microwave heating device. More specifically, the heating cable is wound around the outer wall of a water pipe 33 connected to the first water inlet end 31 of the heat storage device 3, and an insulating layer is wrapped on the outermost layer, so as to heat the liquid, such as water, entering the heat storage device 3 from the first water inlet end 31 of the heat storage device 3. The first water inlet end 31 of the heat storage device 3 is connected to the first water source through a water pipe 33. The heat storage device 3 is used to provide stable hot water to the user.

[0044] The fuel cell 1 in the power generation system generates electricity continuously in a single working condition, and its power generation is determined according to the local maximum power consumption. When the power consumption of the external power grid is lower than the power consumption during the peak power consumption, the controller reduces the grid-connected power by increasing the output power of the first heating device.

[0045] At the same time, the controller also controls the first water inlet end 31 of the heat storage device 3 and / or controls the water inlet flow rate of the second water inlet end 32 .

[0046] Specifically, the flow rate of the tap water from the first water source being heated is adjusted according to the output power W2 value of the first heating device, as well as the initial water temperature and the target water temperature, for example, 80°C, and then the flow rate V1 is adjusted according to the temperature T1 of the first water inlet end entering the heat storage device 3 to ensure that T1 is the target water temperature, for example, 80°C.

[0047] In addition, due to the temperature difference between day and night, the gas temperature in the power generation system will change to a certain extent, so it is necessary to adjust the flow rate V2 of the second water source to ensure that the water temperature entering the thermal storage device 3 is 80° C. Specifically, the flow rate of the second water source is controlled according to the inlet temperature T2 of the second water inlet end 32 of the thermal storage device 3 to ensure that the temperature T2 is 80° C., and then discharged.

[0048] In this embodiment, power-adjustable energy-consuming devices and heat storage devices are added to the power generation system of the fuel cell. The fuel cell uses constant power generation and adjusts the operating power of the energy-consuming device according to the power consumption of the external power grid, so that the system grid-connected power is adjusted in real time according to the power consumption of the user, and the stable and long-term operation of the power generation system is effectively guaranteed on the basis of meeting the power consumption of the user. At the same time, the redundant power during the low power consumption is used for heat storage, and hot water is provided to the user through the heat storage device to ensure that energy is not wasted.

[0049] like Figure 4 As shown, in one embodiment, it also includes a gas conveyor 16, the output end of the gas conveyor 16 is connected to the first input end 41 of the reformer 4, the input end of the gas conveyor 16 receives high-temperature superheated steam and natural gas respectively, and the second input end 42 of the reformer 4 is used to receive natural gas.

[0050] Specifically, due to the high temperature of the high-temperature superheated steam, it is not suitable to use an air pump to pressurize it and transport it to the reformer. In order to mix it with the natural gas with a higher gas pressure, a Venturi effect gas conveyor can be used to use natural gas to drive the high-temperature superheated steam to be transported to the first input end 41 of the reformer 4. Insufficient natural gas can be supplemented from the second input end 42 of the reformer 4.

[0051] like Figure 2The system schematic diagram of a power generation system according to another embodiment of the present invention is shown, comprising: a fuel cell 1, an energy consumption device 2 with adjustable power, a heat storage device 3, a reformer 4, a heat exchanger 5, a water cooler 6, a burner 7, a steam generator 8 and a controller (not shown in the figure), wherein the electrical output end of the fuel cell 1 is electrically connected to the external power grid and the input end of the energy consumption device 2, respectively; the energy consumption device 2 is a first heating device, and the first heating device heats the liquid entering the heat storage device 3 from the first water inlet end 31 of the heat storage device 3; the first water inlet end of the heat storage device 3 is connected to a first water source; the air outlet end of the reformer 4 and the air outlet end 55 of the heat exchanger 5 are respectively connected to the air inlet end of the fuel cell 1; the air outlet end of the fuel cell 1 is respectively connected to the medium input end 43 of the reformer 4 and the first water inlet end of the heat exchanger 5; The medium input end 51 is connected, the medium output end 44 of the reformer 4 and the first medium output end 52 of the heat exchanger 5 are respectively connected to the burner 7, the water inlet end 81 of the steam generator 8 is connected to the third water source, the output end of the burner 7 is connected to the medium input end 83 of the steam generator 8, the medium output end 84 of the steam generator 8 is connected to the second medium input end 53 of the heat exchanger 5, the water vapor output end 82 of the steam generator 8 is connected to the first input end 41 of the reformer 4, the second input end 42 of the reformer 4 is connected to the natural gas source, the second medium output end 54 of the heat exchanger 5 is connected to the air inlet end 61 of the water cooler 6, the water outlet end 62 of the water cooler 6 is connected to the second water inlet end 32 of the heat storage device 3, and the water inlet end 63 of the water cooler 6 is connected to the second water source;

[0052] The controller is in communication connection with the energy consuming device 2 , the fuel cell 1 generates electricity using a constant power, and the controller adjusts the operating power of the energy consuming device 2 according to the power consumption of the external power grid.

[0053] Specifically, the present embodiment adds a steam generator 8, and the steam generator 8 is provided with an atomizing nozzle 85, which atomizes the water entering the steam generator 8 from the water inlet end 81 of the steam generator 8 from the third water source, and then the atomized water is heated by the tail gas of the burner 7 entering from the medium input end 83 of the steam generator 8 to become water vapor, and is discharged from the water vapor output end 82 of the steam generator 8 and enters the reformer 4 through the first input end 41 of the reformer 4. At the same time, the natural gas provided by the natural gas source enters the reformer 4 from the second input end 42 of the reformer 4 for reforming. The tail gas of the burner 7 enters the heat exchanger 5 from the medium output end 84 of the steam generator 8 through the second medium input end 53 of the heat exchanger 5.

[0054] This embodiment adds a steam generator so that water vapor is formed by atomized water being heated by the burner exhaust gas.

[0055] like Figure 3 The system schematic diagram of a power generation system according to another embodiment of the present invention is shown, comprising: a fuel cell 1, an energy consumption device 2 with adjustable power, a heat storage device 3, a reformer 4, a heat exchanger 5, a water cooler 6, a burner 7, a steam generating device 9, a low-temperature steam storage device 10, a superheated steam generating device 11 and a controller (not shown in the figure), wherein the electrical output end of the fuel cell 1 is electrically connected to the external power grid and the input end of the energy consumption device 2, respectively; the energy consumption device 2 is a first heating device, and the first heating device heats the liquid entering the heat storage device 3 from the first water inlet end 31 of the heat storage device 3; the first water inlet end of the heat storage device 3 is connected to a first water source; the gas outlet end of the reformer 4 and the gas outlet end 55 of the heat exchanger 5 are respectively connected to the gas inlet end of the fuel cell 1; the gas outlet end of the fuel cell 1 is respectively connected to the medium input end 43 of the reformer 4 and the first medium input end 51 of the heat exchanger 5; the medium input end of the reformer 4 is connected to the first water source; The outlet end 44 and the first medium output end 52 of the heat exchanger 5 are respectively connected to the burner 7, the water inlet end 91 of the steam generating device 9 is connected to the third water source, the output end 92 of the steam generating device 9 is connected to the low-temperature steam storage device 10 and the superheated steam generating device 11 in sequence, the output end of the burner 7 is connected to the medium input end 1101 of the superheated steam generating device 11, the medium output end 1102 of the superheated steam generating device 11 is connected to the second medium input end of the heat exchanger 5, the water vapor output end 1103 of the superheated steam generating device 11 is connected to the first input end 41 of the reformer 4, the second input end 42 of the reformer 4 is connected to the natural gas source, the second medium output end 54 of the heat exchanger 5 is connected to the air inlet end 61 of the water cooler 6, the water outlet end 62 of the water cooler 6 is connected to the second water inlet end 32 of the heat storage device 3, and the water inlet end 63 of the water cooler 6 is connected to the second water source;

[0056] The controller is in communication connection with the energy consuming device 2 , the fuel cell 1 generates electricity using a constant power, and the controller adjusts the operating power of the energy consuming device 2 according to the power consumption of the external power grid.

[0057] Specifically, this embodiment provides superheated steam. Water from the third water source enters the steam generating device 9 through the water inlet end 91 of the steam generating device 9. The steam generating device 9 is provided with an atomizing nozzle 93 to atomize the water from the third water source entering the steam generating device 9 from the water inlet end 91 of the steam generating device 9. Preferably, the water from the third water source enters the steam generating device 9 after being purified by the purifier 15. The low-temperature water vapor generated by the steam generating device 9 is output to the low-temperature steam storage device 10 through the output end 91 of the steam generating device 9 for heat preservation and storage. The low-temperature steam storage device 10 is preferably a storage tank. Then the low-temperature water vapor in the low-temperature steam storage device 10 enters the superheated steam generating device 11. The exhaust gas of the burner 7 heats the water vapor in the superheated steam generating device 11 through the medium input end 1101 of the superheated steam generating device 11 to obtain high-temperature water vapor, which is then discharged from the medium output end 1102 of the superheated steam generating device 11 and enters the reformer 4 through the first input end 41 of the reformer 4.

[0058] This embodiment provides a steam generating device, a low-temperature steam storage device and a superheated steam generating device, so that water vapor is formed by atomized water being heated by burner exhaust gas.

[0059] In one embodiment, the steam generating device 9 includes a solar thermal collector 12 and a second heating device 13 , and the electrical output end of the fuel cell 1 is also electrically connected to the second heating device 13 .

[0060] Specifically, the steam generating device 9 preferably integrates a solar collector 12 to heat water with solar energy to obtain low-temperature water vapor. At the same time, a second heating device 13 electrically connected to the electrical output end of the fuel cell 1 is added to heat with the electrical energy provided by the fuel cell 1 as a heating device after the sun sets.

[0061] like Figure 5 The flowchart of the control method of the power generation system as described above according to an embodiment of the present invention is shown, comprising:

[0062] Step S501, controlling the fuel cell 1 of the power generation system to generate power at a constant power;

[0063] Step S502, obtaining the power consumption of the external power grid;

[0064] Step S503: adjusting the operating power of the energy consuming device 2 to the difference between the constant power and the power consumption.

[0065] Specifically, the present invention can be applied to electronic devices with processing capabilities, and specifically, can be applied to the controller of the power generation system as described above.

[0066] First, the controller executes step S501 to control the fuel cell 1 of the power generation system to generate electricity at a constant power. The fuel cell 1 generates electricity continuously in a single working condition, and its power generation power is determined according to the local maximum power consumption.

[0067] Then, step S502 is executed to obtain the power consumption of the external power grid. Specifically, the power consumption can be calculated according to the power consumption of the external power grid. Then, according to the power consumption, step S503 is executed to adjust the operating power of the energy consuming device 2 to the difference between the constant power and the power consumption.

[0068] For example, the power generation of the power generation system is W, and the power consumption of the user is W1 (real-time feedback value), then the output power of the energy-consuming device is adjusted in real time according to the power consumption to W2=W-W1.

[0069] In order to provide stable and sufficient power consumption, when some users reduce power consumption, in order to avoid users accidentally turning off the power supply and then turning it back on again after a few seconds, W1 is set to reduce the preset time, for example, after 5 minutes, the output power of the energy-consuming device is adjusted again.

[0070] This embodiment adjusts the operating power of the energy-consuming device according to the power consumption of the external power grid, thereby effectively ensuring the stable and long-term operation of the power generation system on the basis of meeting the power consumption of users.

[0071] In one embodiment, the power generation system further includes: a heat storage device 3, the energy consumption device 2 is a first heating device, the energy consumption device 2 heats the first water inlet end of the heat storage device 3, and the first water inlet end of the heat storage device 3 is connected to a first water source, and the method further includes:

[0072] The flow rate of the first water source is adjusted according to the operating power, the initial water temperature of the first water source, and the target water temperature.

[0073] Specifically, the tap water of the first water source to be heated is adjusted according to the output power W2 value of the first heating device, and according to the initial water temperature and the target water temperature, for example, 80° C., to adjust the flow rate of the first water source, and then the flow rate is adjusted according to the temperature T1 of the first water inlet end entering the heat storage device 3 to ensure that T1 is the target water temperature, for example, 80° C. The heat storage device 3 provides stable hot water to the user.

[0074] In some embodiments, adjusting the flow rate of the first water source according to the operating power, the initial water temperature of the first water source, and the target water temperature specifically includes:

[0075] Calculate the temperature that the water needs to rise △T = T-T0, where T is the required hot water temperature and T0 is the initial temperature of the water source;

[0076] According to the heat calculation formula Q = C*M*△T, Q is the heat required to heat water of mass M to temperature △T, and C is the specific heat capacity. The required energy W = Q / η, η is the effective utilization rate of energy, and W is the power consumption;

[0077] Adjust the water flow rate to M = W*η / C / △T, where M is the flow rate.

[0078] This embodiment provides hot water to users through a heat storage device to ensure that energy is not wasted, and at the same time ensures the temperature of the hot water by adjusting the flow rate.

[0079] like Figure 6 The flowchart of the control method of the power generation system as described above is shown in the best embodiment of the present invention, including:

[0080] Step S601, obtaining the total power W generated by the SOFC device (W is 1.1 times the maximum power consumed by users in the service area);

[0081] Step S602, obtaining the power W1 of users in the service area;

[0082] Step S603, SOFC output grid-connected power W3 = W1 + W 冗余 ;

[0083] Step S604, SOFC outputs the power consumption device operating power W2=W-W3;

[0084] Step S605, determining whether the user's power consumption has decreased, if so, executing step S606, otherwise executing step S610;

[0085] Step S606, again determining whether the user's power consumption W1 is reduced, if so, executing step S607, otherwise executing step S608;

[0086] Step S607, whether the power is restored within 5 minutes, if yes, go to step S608, otherwise go to step S609;

[0087] Step S608: no adjustment is made;

[0088] Step S609, adjusting W2 and W3;

[0089] Step S610: if it is determined that the user's power consumption W1 increases, then execute step S611; otherwise, execute step S608;

[0090] Step S611: If the increase in the user's power consumption W1 exceeds W 冗余 , then execute step S612, otherwise execute step S608;

[0091] Step S612, calculate the operating power of the power consuming device W2 = W-W1'-W 冗余 , execute step S609.

[0092] Among them, W 冗余 It is to ensure stable power supply and to consider power redundancy when power consumption suddenly increases. It can be set to 1KW.

[0093] This embodiment can effectively ensure the stable and long-term operation of the power generation system.

[0094] like Figure 7 The figure shows a hardware structure diagram of an electronic device of the present invention, including:

[0095] at least one processor 701; and,

[0096] A memory 702 that is communicatively connected to at least one of the processors 701; wherein,

[0097] The memory 702 stores instructions that can be executed by at least one of the processors. The instructions are executed by at least one of the processors so that the at least one of the processors can execute the control method of the power generation system as described above.

[0098] Figure 7 A processor 701 is taken as an example.

[0099] Preferably, the electronic device is a controller of the aforementioned power supply system. The electronic device may further include: an input device 703 and a display device 704 .

[0100] The processor 701, the memory 702, the input device 703 and the display device 704 may be connected via a bus or other means, and the figure takes the connection via a bus as an example.

[0101] The memory 702 is a non-volatile computer-readable storage medium that can be used to store non-volatile software programs, non-volatile computer executable programs and modules, such as program instructions / modules corresponding to the control method of the power generation system in the embodiment of the present application, for example, Figure 5 The processor 701 executes various functional applications and data processing by running the non-volatile software programs, instructions and modules stored in the memory 702, that is, implements the control method of the power generation system in the above embodiment.

[0102] The memory 702 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required by at least one function; the data storage area may store data created according to the use of the control method of the power generation system, etc. In addition, the memory 702 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some embodiments, the memory 702 may optionally include a memory remotely arranged relative to the processor 701, and these remote memories may be connected to a device for executing the control method of the power generation system via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0103] The input device 703 can receive user clicks and generate signal inputs related to user settings and function controls of the control method of the power generation system. The display device 704 can include display devices such as a display screen.

[0104] The one or more modules are stored in the memory 702 , and when executed by the one or more processors 701 , the control method of the power generation system in any of the above method embodiments is executed.

[0105] The present invention adds a power-adjustable energy-consuming device to the power generation system of the fuel cell. The fuel cell generates electricity at a constant power and adjusts the operating power of the energy-consuming device according to the power consumption of the external power grid, thereby effectively ensuring the stable and long-term operation of the power generation system on the basis of meeting the power consumption of users.

[0106] An embodiment of the present invention provides a storage medium, wherein the storage medium stores computer instructions. When a computer executes the computer instructions, the storage medium is used to execute all steps of the control method of the power generation system as described above.

[0107] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A power generation system, characterized in that: include: A fuel cell (1), an energy consuming device (2) with adjustable power, and a controller, wherein the electrical output end of the fuel cell (1) is electrically connected to an external power grid and the input end of the energy consuming device (2), respectively, the controller is communicatively connected to the energy consuming device (2), the fuel cell (1) generates electricity using a constant power, and the controller adjusts the operating power of the energy consuming device (2) according to the power consumption of the external power grid.

2. The power generation system according to claim 1, characterized in that: Also includes: A heat storage device (3), wherein the energy consumption device (2) is a first heating device, and the first heating device heats liquid entering the heat storage device (3) from a first water inlet end of the heat storage device (3), and the first water inlet end of the heat storage device (3) is connected to a first water source.

3. The power generation system according to claim 2, characterized in that: Also includes: A reformer (4), a heat exchanger (5), a water cooler (6), and a burner (7), wherein the gas outlets of the reformer (4) and the heat exchanger (5) are respectively connected to the gas inlet of the fuel cell (1), the gas outlet of the fuel cell (1) is respectively connected to the medium input of the reformer (4) and the first medium input of the heat exchanger (5), the medium output of the reformer (4) and the first medium output of the heat exchanger (5) are respectively connected to the burner (7), the output of the burner (7) is connected to the second medium input of the heat exchanger (5), the second medium output of the heat exchanger (5) is connected to the gas inlet of the water cooler (6), the water outlet of the water cooler (6) is connected to the second water inlet of the heat storage device (3), and the water inlet of the water cooler (6) is connected to a second water source.

4. The power generation system according to claim 3, characterized in that: It also includes a steam generator (8), the water inlet end of the steam generator (8) is connected to a third water source, the output end of the burner (7) is connected to the medium input end of the steam generator (8), the medium output end of the steam generator (8) is connected to the second medium input end of the heat exchanger (5), the water vapor output end of the steam generator (8) is connected to the water vapor input end of the reformer (4), and the natural gas input end of the reformer (4) is connected to a natural gas source.

5. The power generation system according to claim 3, characterized in that: Also includes: A steam generating device (9), a low-temperature steam storage device (10) and a superheated steam generating device (11), wherein the water inlet end of the steam generating device (9) is connected to a third water source, the output end of the steam generating device (9) is connected to the low-temperature steam storage device (10) and the superheated steam generating device (11) in sequence, the output end of the burner (7) is connected to the medium input end of the superheated steam generating device (11), the medium output end of the superheated steam generating device (11) is connected to the second medium input end of the heat exchanger (5), the water vapor output end of the superheated steam generating device (11) is connected to the water vapor input end of the reformer (4), and the natural gas input end of the reformer (4) is connected to a natural gas source.

6. The power generation system according to claim 5, characterized in that: Also includes: The steam generating device (9) comprises a solar thermal collector (12) and a second heating device (13), and the electrical output end of the fuel cell (1) is also electrically connected to the second heating device (13).

7. A control method for a power generation system according to any one of claims 1 to 6, characterized in that: include: Controlling the fuel cell (1) of the power generation system to generate electricity at a constant power; Obtaining the power consumption of the external power grid; The operating power of the energy consuming device (2) is adjusted to the difference between the constant power and the electrical power consumption.

8. The control method of the power generation system according to claim 6, characterized in that: The power generation system further comprises: a heat storage device (3); the energy consumption device (2) is a first heating device; the energy consumption device (2) heats a first water inlet end of the heat storage device (3); the first water inlet end of the heat storage device (3) is connected to a first water source; and the method further comprises: The flow rate of the first water source is adjusted according to the operating power, the initial water temperature of the first water source, and the target water temperature.

9. An electronic device, characterized in that: include: at least one processor; as well as, a memory communicatively connected to at least one of the processors; wherein, The memory stores instructions that can be executed by at least one of the processors. The instructions are executed by at least one of the processors so that the at least one processor can execute the control method of the power generation system according to any one of claims 7 to 8.

10. A storage medium, characterized in that: The storage medium stores computer instructions, and when a computer executes the computer instructions, it is used to execute all steps of the control method of the power generation system according to any one of claims 7 to 8.

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