Power generation system, load adjustment method for power generation system, and storage medium

Abstract

The application discloses a power generation system, a load adjusting method of the power generation system and a storage medium. The system comprises a boiler configured to burn fuel to generate high-temperature steam; a steam adjusting module configured to extract a part of the high-temperature steam generated by the boiler to obtain first high-temperature steam; a steam power generation unit configured to generate power by using second high-temperature steam remaining in the high-temperature steam generated by the boiler and extracted by the steam adjusting module; a waste treatment and power generation module configured to treat waste by using the first high-temperature steam to obtain waste solid residues and combustible gas, and generate power by using the combustible gas; and a load coordination module configured to receive a load scheduling instruction, and control the waste treatment and power generation module and / or the steam adjusting module based on a target load in the load scheduling instruction and a current output load of the power generation system. Through the technical scheme, the waste can be recycled, and the speed of load rising and falling of the steam power generation unit can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of garbage disposal and thermal power generation, and particularly relates to a power generation system, a load adjustment method of the power generation system and a storage medium. BACKGROUND

[0002] How to effectively dispose of garbage has become one of the problems faced by urban development. At the same time, in order to adapt to the actual situation of a substantial increase in the proportion of new energy installed, the steam generator set needs to be flexibly peak-regulated to improve the load demand of the unit responding to the power grid and obtain higher peak-regulation benefits. SUMMARY

[0003] The present application provides a power generation system, a load adjustment method of the power generation system and a storage medium. Resource utilization of garbage can be realized, and the speed of raising and lowering the load of the steam generator set can be improved.

[0004] In a first aspect, an embodiment of the present application provides a power generation system, comprising: a boiler, a steam regulation module, a steam generator set, a garbage disposal and power generation module, and a load coordination module, wherein the boiler is configured to burn fuel to generate high-temperature steam; wherein the fuel comprises garbage solid residues generated by the garbage disposal and power generation module; the steam regulation module is configured to extract a part of the high-temperature steam generated by the boiler to obtain first high-temperature steam; the steam generator set is configured to use second high-temperature steam remaining after the steam regulation module extracts the high-temperature steam generated by the boiler to generate power; the garbage disposal and power generation module is configured to use the first high-temperature steam to dispose of garbage to obtain garbage solid residues and combustible gas, and use the combustible gas to generate power; and the load coordination module is configured to receive a load scheduling instruction, and based on a target load in the load scheduling instruction and a current output load of the power generation system, control the garbage disposal and power generation module and / or the steam regulation module.

[0005] In this technical solution, the flow of the first high-temperature steam input into the garbage disposal module and the flow of the second high-temperature steam input into the steam generator set can be adjusted by the steam regulation module, the flow of the second high-temperature steam input into the steam generator set can be controlled individually, and thus the output load of the steam generator set can be quickly adjusted. In addition, under the synergistic effect of the garbage disposal and power generation module, the overall output load of the power generation system can be quickly adjusted, and the flexibility of peak-regulation can be increased.

[0006] In an implementation, the garbage treatment and power generation module comprises a garbage bin, a crushing and pulping machine, a high-temperature gasification furnace, a gas separation device, a gas fuel storage tank, a fuel cell, and a direct-current alternating-current inverter, wherein the garbage bin is configured to store the garbage; the crushing and pulping machine is configured to perform pulping treatment on the garbage to obtain garbage slurry and garbage solid residue; the high-temperature gasification furnace is configured to perform high-temperature cracking on the garbage slurry using the first high-temperature steam to obtain cracking product gas; the gas separation device is configured to perform gas separation on the cracking product gas to obtain the combustible gas; the gas fuel storage tank is configured to store the combustible gas; the fuel cell is configured to generate power using the combustible gas; and the direct-current alternating-current inverter is configured to convert direct current output by the fuel cell into alternating current.

[0007] In the technical solution, the high-temperature steam generated by the boiler can be used to treat the garbage to obtain the combustible gas, thereby avoiding waste of the extracted high-temperature steam. In addition, the combustible gas can be used to generate power according to actual conditions, thereby assisting the steam turbine generator unit to rapidly adjust the load.

[0008] In an implementation, the load coordination module is specifically configured to: in a case where the target load is less than or equal to the current output load, obtain a difference load between the target load and the current output load; obtain a current evaporation amount of the boiler; based on the current evaporation amount, obtain a first output load of the steam turbine generator unit; wherein the first output load is an output load of the steam turbine generator unit when the flow rate of the first high-temperature steam is maximum under the current evaporation amount; based on the difference load and the first output load, control the steam regulation module to increase the flow rate of the first high-temperature steam; reduce the evaporation amount of the boiler, and control the steam regulation module to reduce the flow rate of the first high-temperature steam until the flow rate of the first high-temperature steam is 0.

[0009] In an optional implementation, based on the difference load and the first output load, the control of the steam regulation module to increase the flow rate of the first high-temperature steam comprises: in response to the difference load being less than or equal to the first output load, controlling the steam regulation module to increase the flow rate of the first high-temperature steam to adjust the output load of the steam turbine generator unit to the target load; or, in response to the difference load being greater than the first output load, controlling the steam regulation module to increase the flow rate of the first high-temperature steam to a maximum flow rate.

[0010] In an implementation manner, the load coordination module is specifically configured to: in a case where the target load is greater than the current output load, obtaining a difference load between the target load and the current output load; adjusting an output load of the waste treatment power generation module based on the difference load and a maximum output load of the waste treatment power generation module; increasing an evaporation amount of the boiler to increase the output load of the steam power generation unit to the target load, and synchronously reducing the output load of the waste treatment power generation module until the output load of the waste treatment power generation module is 0.

[0011] In an optional implementation manner, the adjusting the output load of the waste treatment power generation module based on the difference load and the maximum output load of the waste treatment power generation module comprises: in response to the difference load being less than the maximum output load of the waste treatment power generation module, adjusting the output load of the waste treatment power generation module to be the difference load; or in response to the difference load being greater than or equal to the maximum output load of the waste treatment power generation module, adjusting the output load of the waste treatment power generation module to be the maximum output load.

[0012] In a first aspect, the embodiments of the present application provide a load adjustment method of a power generation system, the method is implemented based on the power generation system as described in the first aspect, and the method comprises: receiving a load scheduling instruction; and controlling the waste treatment power generation module and / or the steam adjustment module based on a target load in the load scheduling instruction and a current output load of the power generation system.

[0013] In an implementation manner, the controlling the waste treatment power generation module and / or the steam adjustment module based on the target load in the load scheduling instruction and the current output load of the power generation system comprises: in a case where the target load is less than or equal to the current output load, obtaining a difference load between the target load and the current output load; obtaining a current evaporation amount of the boiler; obtaining a first output load of the steam power generation unit based on the current evaporation amount, wherein the first output load is an output load of the steam power generation unit when a flow of the first high-temperature steam is maximum under the current evaporation amount; controlling the steam adjustment module to increase the flow of the first high-temperature steam based on the difference load and the first output load; and reducing the evaporation amount of the boiler and controlling the steam adjustment module to reduce the flow of the first high-temperature steam until the flow of the first high-temperature steam is 0.

[0014] In an optional implementation, the controlling the steam regulating module to increase the flow of the first high-temperature steam based on the difference load and the first output load comprises: in response to the difference load being less than or equal to the first output load, controlling the steam regulating module to increase the flow of the first high-temperature steam to adjust the output load of the steam power generating unit to the target load; or, in response to the difference load being greater than the first output load, controlling the steam regulating module to increase the flow of the first high-temperature steam to a maximum flow.

[0015] In an implementation, the controlling the waste treatment power generating module and / or the steam regulating module based on the target load in the load scheduling instruction and the current output load of the power generation system comprises: in a case where the target load is greater than the current output load, obtaining a difference load between the target load and the current output load; adjusting the output load of the waste treatment power generating module based on the difference load and a maximum output load of the waste treatment power generating module; increasing the output load of the steam power generating unit to the target load, and synchronously reducing the output load of the waste treatment power generating module until the output load of the waste treatment power generating module is 0.

[0016] In an optional implementation, the adjusting the output load of the waste treatment power generating module based on the difference load and the maximum output load of the waste treatment power generating module comprises: in response to the difference load being less than the maximum output load of the waste treatment power generating module, adjusting the output load of the waste treatment power generating module to the difference load; or, in response to the difference load being greater than or equal to the maximum output load of the waste treatment power generating module, adjusting the output load of the waste treatment power generating module to the maximum output load.

[0017] In a third aspect, an embodiment of the present application provides a computer readable storage medium for storing instructions, when the instructions are executed, the method of the second aspect is implemented.

[0018] In a fourth aspect, an embodiment of the present application provides a computer program product comprising a computer program, when the computer program is executed by a processor, the steps of the load adjustment method of the power generation system of the second aspect are implemented.

[0019] It should be understood that the content described in this part is not intended to identify key or important features of the embodiments of the present application, nor to limit the scope of the present application. Other features of the present application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings are used to better understand the present application, and do not limit the present application. Among them:

[0021] Figure 1 is a schematic diagram of a power generation system provided by an embodiment of the present application;

[0022] Figure 2 is a schematic diagram of a load regulation method of a power generation system provided by an embodiment of the present application;

[0023] Figure 3 is a schematic diagram of another load regulation method of a power generation system provided by an embodiment of the present application;

[0024] Figure 4 is a schematic diagram of still another load regulation method of a power generation system provided by an embodiment of the present application. DETAILED DESCRIPTION

[0025] The exemplary embodiments of the present application will be described hereinafter with reference to the accompanying drawings, in which the various details of the embodiments of the present application are set forth in order to provide a thorough understanding of the present application. It should be understood that these embodiments are exemplary only and are not limiting the scope of the present application. It will be apparent to one of ordinary skill in the art that various changes and modifications can be made to the embodiments described herein without departing from the spirit and scope of the present application. Also, the description below will omit the description of well-known functions and structures for the sake of clarity and conciseness.

[0026] In the description of the present application, unless otherwise specified, " / " means the meaning of or, for example, A / B can mean A or B; "and / or" in the present application means that there can be three relationships, for example, A and / or B can mean that there are three cases of A alone, A and B together, and B alone. The first, second, and various other numbers involved in the present application are only for the convenience of description and do not limit the scope of the embodiments of the present application, nor do they represent the order of precedence.

[0027] Please refer to Figure 1 , Figure 1 is a schematic diagram of a power generation system provided by an embodiment of the present application. As shown in Figure 1As shown, the system comprises a boiler 110, a steam regulating module 120, a steam power generator set 130, a waste treatment power generation module 140 and a load coordination module 150, wherein the boiler 110 is configured to burn fuel to generate high-temperature steam; wherein the fuel comprises waste solid residues generated by the waste treatment power generation module 140; the steam regulating module 120 is configured to extract a part of the high-temperature steam generated by the boiler 110 to obtain first high-temperature steam, and input the first high-temperature steam into the waste treatment power generation module 140; the steam power generator set 130 is configured to generate power using the first high-temperature steam remaining in the high-temperature steam generated by the boiler 110 after being extracted by the steam regulating module 120; the waste treatment power generation module 140 is configured to treat waste using the first high-temperature steam to obtain waste solid residues and combustible gas, and generate power using the combustible gas; and the load coordination module 150 is configured to receive a load scheduling instruction, and control the waste treatment power generation module 140 and / or the steam regulating module 120 based on a target load in the load scheduling instruction and a current output load of the power generation system.

[0028] In the embodiments of the present application, the steam power generator set 130 can comprise a steam turbine 131 and a generator 132.

[0029] For example, the boiler 110 burns fuel including waste solid residues generated by the waste treatment power generation module 140 to generate high-temperature steam, and the steam regulating module 120 extracts a part of the high-temperature steam generated by the boiler 110 as first high-temperature steam according to actual conditions; the waste treatment power generation module 140 pre-treats waste to obtain waste solid residues and other products, and then further treats the pre-treatment products using the first high-temperature steam to obtain combustible gas, and the waste treatment power generation module 140 can generate power using the combustible gas when necessary; the second high-temperature steam remaining in the high-temperature steam generated by the boiler 110 after being extracted by the steam regulating module 120 flows into the steam turbine 131 in the steam power generator set 130, the steam turbine 131 rotates under the action of the high-temperature steam to drive the generator 132 to generate power.

[0030] In the embodiments of the present application, the load coordination module 150 can also receive electric energy generated by the steam power generator set 130 and the waste treatment power generation module 140, and uniformly coordinate and transmit the electric energy to a power grid.

[0031] It can be understood that, due to the thermal buffering characteristics of the boiler, the evaporation capacity of the boiler cannot be quickly adjusted, so the output load of the steam power generator set cannot be quickly changed for a traditional coal-fired steam power generator set. The power generation system of the present application extracts the high-temperature steam generated by the boiler 110 according to the actual situation, so that the high-temperature steam generated by the boiler 110 and the high-temperature steam entering the steam power generator set 130 are no longer coordinately controlled, the second high-temperature steam remaining after extraction is input into the steam power generator set 130, the flow of the high-temperature steam entering the steam power generator set 130 is quickly adjusted, thereby greatly improving the load change rate of the steam power generator set 130, and flexible peak shaving is realized.

[0032] It can be understood that, for a traditional coal-fired steam power generator set, due to the minimum combustion requirement of the unit boiler, the thermal load of the boiler cannot be lower than the lower limit of the thermal load, so the output load of the steam power generator set also has a lower limit. Through the power generation system of the present application, the high-temperature steam generated by the boiler can be extracted and delivered to the waste treatment power generation module. Under the condition that the thermal load of the boiler is the same, compared with the traditional coal-fired steam power generator set, the flow of the second high-temperature steam input into the steam power generator set can be reduced, thereby effectively reducing the lower limit of the output load of the steam power generator set. The steam power generator set has better deep peak shaving capability.

[0033] Through the power generation system of the present application, the flow of the first high-temperature steam input into the waste treatment module and the flow of the second high-temperature steam input into the steam power generator set can be adjusted by the steam adjusting module, the flow of the second high-temperature steam input into the steam power generator set is controlled independently, thereby quickly adjusting the output load of the steam power generator set. And under the synergistic effect of the waste treatment power generation module, the overall output load of the power generation system can be quickly adjusted, and the flexibility of peak shaving is increased.

[0034] In an implementation manner, the waste treatment power generation module 140 includes a waste bin 141, a crushing pulper 142, a high-temperature gasification furnace 143, a gas separation device 144, a gas fuel storage tank 145, a fuel cell 146, and a direct-AC inverter 147. The waste bin 141 is used for storing waste. The crushing pulper 142 is used for pulping the waste to obtain waste slurry and waste solid residue. The high-temperature gasification furnace 143 is used for high-temperature cracking of the waste slurry using the first high-temperature steam to obtain cracking product gas. The gas separation device 144 is used for gas separation of the cracking product gas to obtain combustible gas. The gas fuel storage tank 145 is used for storing the combustible gas. The fuel cell 146 is used for generating power using the combustible gas. The direct-AC inverter 147 is used for converting direct current output by the fuel cell 146 into alternating current.

[0035] For example, the crushing pulper 142 obtains the waste to be treated from the waste bin 141, and performs pulping treatment on the waste to be treated to obtain waste slurry and waste solid residue, and then sends the waste solid residue into the boiler 110 for combustion, and sends the waste slurry into the high-temperature vaporization furnace 143; the high-temperature vaporization furnace 143 uses the second high-temperature steam extracted by the steam adjusting module 120 to perform high-temperature cracking on the waste slurry to obtain cracking product gas, and then sends the cracking product gas into the gas separation device 144; the gas separation device 144 performs gas separation on the cracking product gas to obtain combustible gas in the cracking product gas, and inputs the combustible gas into the gas fuel storage tank 145 for storage; the fuel cell 146 generates electricity according to actual conditions using the combustible gas in the gas fuel storage tank 145; the direct current output by the fuel cell 146 is converted into alternating current by the direct-AC inverter 147, so as to be transmitted to the power grid.

[0036] It should be noted that in the embodiments of the present application, the waste can be kitchen waste.

[0037] By using the power generation system in the embodiments of the present application, the high-temperature steam generated by the boiler can be used to treat waste to obtain combustible gas, thereby avoiding waste of the extracted high-temperature steam. In addition, the combustible gas can be used to generate electricity according to actual conditions, thereby assisting the steam turbine generator unit to rapidly adjust the load.

[0038] In an implementation manner, the load coordination module 150 is specifically configured to: in a case where the target load is less than or equal to the current output load, obtain a difference load between the target load and the current output load; obtain a current evaporation amount of the boiler 110; based on the current evaporation amount, obtain a first output load of the steam turbine generator unit 130; wherein the first output load is an output load of the steam turbine generator unit 130 when the flow of the first high-temperature steam is maximum under the current evaporation amount; based on the difference load and the first output load, control the steam adjusting module 120 to increase the flow of the first high-temperature steam; reduce the evaporation amount of the boiler 110, and control the steam adjusting module 120 to reduce the flow of the first high-temperature steam until the flow of the first high-temperature steam is 0.

[0039] In an optional implementation manner, the control of the steam adjusting module 120 to increase the flow of the first high-temperature steam based on the difference load and the first output load comprises: in response to the difference load being less than or equal to the first output load, controlling the steam adjusting module 120 to increase the flow of the first high-temperature steam to adjust the output load of the steam turbine generator unit to the target load; or in response to the difference load being greater than the first output load, controlling the steam adjusting module 120 to increase the flow of the first high-temperature steam to the maximum flow.

[0040] In an implementation, the load coordination module 150 is specifically configured to: in the case that the target load is greater than the current output load, obtain a difference load between the target load and the current output load; based on the difference load and the maximum output load of the waste treatment power generation module 140, adjust the output load of the waste treatment power generation module 140; increase the evaporation amount of the boiler 110 to increase the output load of the steam power generation unit to the target load, and simultaneously reduce the output load of the waste treatment power generation module until the output load of the waste treatment power generation module is 0.

[0041] In an optional implementation, the above-mentioned based on the difference load and the maximum output load of the waste treatment power generation module 140, adjusting the output load of the waste treatment power generation module 140, comprises: in response to the difference load being less than the maximum output load of the waste treatment power generation module 140, adjusting the output load of the waste treatment power generation module to the difference load; or, in response to the difference load being greater than or equal to the maximum output load of the waste treatment power generation module 140, adjusting the output load of the waste treatment power generation module to the maximum output load.

[0042] As to the apparatus in the above-mentioned embodiments, the specific manner in which each module performs operations will be described in detail in the embodiments related to the method, which will not be described in detail here.

[0043] Please refer to Figure 2 , Figure 2 is a schematic diagram of a load adjustment method of a power generation system provided by the embodiments of the present application. The method is implemented based on the power generation system provided by any of the embodiments of the present application. As shown in Figure 3 , the method can include but is not limited to the following steps:

[0044] Step S201: receiving a load scheduling instruction.

[0045] For example, receiving a load scheduling instruction sent by a power grid.

[0046] Step S202: based on the target load in the load scheduling instruction and the current output load of the power generation system, controlling the waste treatment power generation module and / or the steam adjustment module.

[0047] As an example, based on the target load in the load scheduling instruction and the current output load of the power generation system, it is determined that the power generation system needs to quickly reduce the output load, and the steam adjustment module is controlled.

[0048] As another example, based on the target load in the load scheduling instruction and the current output load of the power generation system, it is determined that the power generation system needs to quickly increase the output load, and the waste treatment power generation module and the steam adjustment module are controlled.

[0049] By implementing the embodiments of the present application, the garbage treatment power generation module and / or the steam regulation module can be controlled based on the target load in the load scheduling instruction and the current output load of the power generation system, so that the rapid adjustment of the output load of the steam power generating unit is realized, and the deep flexible peak regulation of the power generation system is realized.

[0050] In an implementation manner, in a case where the target load is less than or equal to the current output load, the steam regulation module can be controlled to reduce the output load of the power generation system to the target load. As an example, refer to Figure 3 , Figure 3 is a schematic diagram of another load regulation method of a power generation system provided by the embodiments of the present application. The method is implemented based on the power generation system provided by any of the embodiments of the present application. As shown in Figure 3 , the method can include but is not limited to the following steps:

[0051] Step S301: receiving a load scheduling instruction.

[0052] In the embodiments of the present application, step S301 can be implemented in any of the embodiments of the present application, and the embodiments of the present application do not limit this and will not be repeated.

[0053] Step S302: in a case where the target load is less than or equal to the current output load, obtaining a difference load between the target load and the current output load.

[0054] For example, in a case where the target load is greater than the current output load of the power generation system, the difference load between the target load and the current output load is obtained.

[0055] Step S303: obtaining a current evaporation amount of the boiler.

[0056] Step S304: obtaining a first output load of the steam power generating unit based on the current evaporation amount.

[0057] The first output load is the output load of the steam power generating unit when the flow rate of the first high-temperature steam extracted by the steam regulation module is the maximum under the condition that the evaporation amount of the boiler of the steam power generating unit is the current evaporation amount.

[0058] For example, the current flow rate of the high-temperature steam generated by the boiler corresponding to the current evaporation amount is obtained, and when the flow rate of the first high-temperature steam input to the garbage treatment power generation module is the maximum, the flow rate of the remaining second high-temperature steam is input to the steam power generating unit, and the first output load of the steam power generating unit.

[0059] Step S305: based on the difference load and the first output load, controlling the steam regulation module to increase the flow rate of the first high-temperature steam.

[0060] For example, based on the difference load and the first output load, the steam regulating module is controlled to increase the flow of the first high-temperature steam extracted from the high-temperature steam generated by the boiler to reduce the flow of the second high-temperature steam used for power generation by the steam power generator, so as to reduce the output load of the steam power generator to the target load.

[0061] In an optional implementation, the above-mentioned control of the steam regulating module to reduce the flow of the second high-temperature steam and increase the flow of the first high-temperature steam based on the difference load and the first output load can include: in response to the difference load being less than or equal to the first output load, controlling the steam regulating module to increase the flow of the first high-temperature steam to adjust the output load of the steam power generator to the target load; or, in response to the difference load being greater than the first output load, controlling the steam regulating module to increase the flow of the first high-temperature steam to a maximum flow.

[0062] As an example, in response to the difference load being less than or equal to the first output load, the steam regulating module is controlled to increase the flow of the second steam extracted from the high-temperature steam generated by the boiler to reduce the flow of the second high-temperature steam used for power generation by the steam power generator, so as to adjust the output load of the steam power generator to the target load.

[0063] It can be understood that when the difference load is less than or equal to the first output load, part of the high-temperature steam generated by the boiler can be extracted to the waste treatment power generation module, so that the flow of the high-temperature steam input to the steam power generator for power generation is reduced without changing the evaporation capacity of the boiler, thereby quickly reducing the output load of the steam power generator to the target load.

[0064] As another example, in response to the difference load being greater than the first output load, the steam regulating module is controlled to adjust the flow of the extracted first high-temperature steam to a maximum allowed value, thereby reducing the flow of the second high-temperature steam input to the steam power generator.

[0065] It can be understood that when the difference load is greater than the first output load, the flow of the first high-temperature steam extracted from the high-temperature steam generated by the boiler can be increased to a maximum value to quickly reduce the flow of the second high-temperature steam used for power generation by the steam power generator, thereby quickly reducing the output load of the steam power generator, and at this time the waste treatment power generation module does not generate power but only uses the first high-temperature steam to perform corresponding treatment on the waste. The overall output load of the power generation system is the output load of the steam power generator. Although the output load of the steam power generator is still greater than the difference load at this time, the output load of the steam power generator has been quickly reduced by the same load as the first output load.

[0066] Step S306: reducing the evaporation capacity of the boiler and controlling the steam regulating module to reduce the flow of the first high-temperature steam until the flow of the first high-temperature steam is 0.

[0067] As an example, in the case that the difference load is less than or equal to the first output load, the evaporation amount of the boiler and the flow of the first high-temperature steam extracted by the steam regulating module are simultaneously reduced until the flow of the first high-temperature steam is 0 and the thermal load of the boiler reaches stability after the output load of the steam power generating unit is stable.

[0068] As another example, in the case that the difference load is greater than the first output load, the evaporation amount of the boiler is simultaneously reduced and the flow of the first high-temperature steam is kept unchanged to reduce the output load of the steam power generating unit to the target load after the output load of the steam power generating unit is stable, and then the evaporation amount of the boiler and the flow of the first high-temperature steam extracted by the steam regulating module are simultaneously reduced until the flow of the first high-temperature steam is 0 and the thermal load of the boiler reaches stability.

[0069] By implementing the embodiments of the present application, in the case that the target load is less than or equal to the current output load, the steam regulating module can be controlled to increase the flow of the first high-temperature steam to reduce the flow of the second high-temperature steam input to the steam power generating unit, thereby quickly reducing the output load of the steam power generating unit and realizing the rapid peak shaving of the steam power generating unit. Moreover, the lower limit of the output of the steam power generating unit can be reduced.

[0070] In an implementation manner, in the case that the target load is greater than the current output load, the steam regulating module and the waste treatment power generating module can be controlled to increase the output load of the power generating system to the target load. As an example, please refer to Figure 4 , Figure 4 is a schematic diagram of another load regulating method of a power generating system provided by an embodiment of the present application. The method is realized based on the power generating system provided by any embodiment of the present application. As shown in Figure 4 , the method can include but is not limited to the following steps:

[0071] Step S401: receiving a load scheduling instruction.

[0072] In the embodiments of the present application, step S401 can be realized by any of the embodiments of the present application, and the embodiments of the present application do not limit this and will not be repeated.

[0073] Step S402: in the case that the target load is greater than the current output load, obtaining a difference load between the target load and the current output load.

[0074] For example, in the case that the target load is greater than the current output load, a difference load between the target load and the current output load of the power generating system is obtained.

[0075] Step S403: Adjusting the output load of the waste treatment power generation module based on the difference load and the maximum output load of the waste treatment power generation module.

[0076] For example, the output load of the waste treatment power generation module is adjusted based on the difference load and the maximum output load of the waste treatment power generation module to increase the output load of the power generation system.

[0077] In an optional implementation, the adjusting of the output load of the waste treatment power generation module based on the difference load and the maximum output load of the waste treatment power generation module includes: in response to the difference load being less than the maximum output load of the waste treatment power generation module, adjusting the output load of the waste treatment power generation module to be the difference load; or in response to the difference load being greater than or equal to the maximum output load of the waste treatment power generation module, adjusting the output load of the waste treatment power generation module to be the maximum output load.

[0078] For example, in response to the difference load being less than the maximum output load of the waste treatment power generation module, the output load of the waste treatment power generation module is adjusted to be the difference load.

[0079] It can be understood that when the difference load is less than the maximum output load of the waste treatment power generation module, the overall output load of the power generation system can be quickly increased to the target load by adjusting the output load of the waste treatment power generation module to be the difference load.

[0080] For another example, in response to the difference load being greater than or equal to the maximum output load of the waste treatment power generation module, the output load of the waste treatment power generation module is adjusted to be the maximum load.

[0081] It can be understood that when the difference load is less than the maximum output load of the waste treatment power generation module, the output load of the power generation system can be quickly increased by adjusting the output load of the waste treatment power generation module to be the maximum load, although the overall output load of the power generation system is still less than the target load, the load increase rate of the power generation system can still be greatly increased.

[0082] Step S404: Increasing the evaporation capacity of the boiler to increase the output load of the steam power generation unit to the target load, and simultaneously reducing the output load of the waste treatment power generation module until the output load of the waste treatment power generation module is 0.

[0083] For example, in the case where the difference load is less than the maximum output load of the waste treatment power generation module, the evaporation capacity of the boiler is increased to increase the output load of the steam power generation unit to the target load, and the output load of the waste treatment power generation module is simultaneously reduced to keep the output load of the power generation system at the target load until the output load of the waste treatment power generation module is reduced to 0.

[0084] As another example, in the case that the aforementioned difference load is greater than or equal to the maximum output load of the waste treatment power generation module, the evaporation amount of the boiler is increased to increase the output load of the steam power generation unit, the output load of the power generation system is increased to the target load, and then the output load of the steam power generation unit is continuously increased, and the output load of the waste treatment power generation module is simultaneously reduced to keep the output load of the power generation system at the target load until the output load of the waste treatment power generation module is reduced to 0, and the thermal load of the boiler reaches a stable state.

[0085] It can be understood that, in general, the target load in the load adjustment instruction will not exceed the maximum output load of the steam power generation unit.

[0086] By implementing the embodiments of the present application, in the case that the target load is greater than the current output load, the output load of the waste treatment power generation module can be adjusted, the output load of the power generation system is quickly adjusted to the target load, and fast peak regulation is realized.

[0087] Based on the embodiments of the present application, the present application further provides a computer readable storage medium, wherein computer instructions are used to make a computer execute the load adjustment method of the power generation system according to any one of the foregoing embodiments provided by the embodiments of the present application.

[0088] It should be understood that the various forms of flow shown above can be used to reorder, add or delete steps. For example, the steps described in the present application can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solutions of the present application can be achieved, and the present application does not limit this.

[0089] The above specific embodiments do not constitute a limitation on the protection scope of the present application. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A power generation system, characterized in that, include: Boiler, steam regulation module, steam generator set, waste treatment power generation module, and load coordination module, among which, The boiler is used to burn fuel to generate high-temperature steam; wherein the fuel includes solid waste residue generated by the waste treatment power generation module. The steam regulating module is used to extract a portion of the high-temperature steam generated by the boiler to obtain the first high-temperature steam. The steam generator set is used to generate electricity using the second high-temperature steam remaining after being extracted by the steam regulating module from the high-temperature steam generated by the boiler. The waste treatment power generation module is used to treat waste using the first high-temperature steam to obtain the waste solid residue and combustible gas, and to generate electricity using the combustible gas; The load coordination module is used to receive load scheduling instructions and control the waste treatment power generation module and / or the steam regulation module based on the target load in the load scheduling instructions and the current output load of the power generation system. The load coordination module is specifically used for: If the target load is less than or equal to the current output load, the difference load between the target load and the current output load is obtained; Obtain the current evaporation rate of the boiler; Based on the current evaporation rate, the first output load of the steam generator set is obtained; wherein, the first output load is the output load of the steam generator set when the flow rate of the first high-temperature steam is at its maximum under the current evaporation rate; Based on the differential load and the first output load, the steam regulating module is controlled to increase the flow rate of the first high-temperature steam; Reduce the evaporation rate of the boiler and control the steam regulation module to reduce the flow rate of the first high-temperature steam until the flow rate of the first high-temperature steam is 0. If the target load is greater than the current output load, the difference load between the target load and the current output load is obtained; Based on the differential load and the maximum output load of the waste-to-energy power generation module, adjust the output load of the waste-to-energy power generation module; Increase the evaporation capacity of the boiler to increase the output load of the steam generator set to the target load, and simultaneously decrease the output load of the waste-to-energy power generation module until the output load of the waste-to-energy power generation module is 0.

2. The system as described in claim 1, characterized in that, The waste-to-energy module includes a waste silo, a crusher and pulper, a high-temperature gasifier, a gas separator, a gaseous fuel storage tank, a fuel cell, and a DC / AC inverter. The waste hopper is used to store the waste; The crushing and pulping machine is used to pulp the waste to obtain waste slurry and waste solid residue; The high-temperature gasifier is used to perform high-temperature pyrolysis on the waste slurry using the first high-temperature steam to obtain pyrolysis product gas. The gas separation device is used to separate the pyrolysis product gas to obtain the combustible gas; The gaseous fuel storage tank is used to store the combustible gas; The fuel cell is used to generate electricity using the combustible gas; The DC-AC inverter is used to convert the DC power output from the fuel cell into AC power.

3. The system as described in claim 1, characterized in that, The step of controlling the steam regulating module to increase the flow rate of the first high-temperature steam based on the differential load and the first output load includes: In response to the differential load being less than or equal to the first output load, the steam regulation module is controlled to increase the flow rate of the first high-temperature steam to adjust the output load of the steam generator set to the target load; or, In response to the differential load being greater than the first output load, the steam regulating module is controlled to increase the flow rate of the first high-temperature steam to the maximum flow rate.

4. The system as described in claim 1, characterized in that, The adjustment of the output load of the waste-to-energy module based on the differential load and the maximum output load of the waste-to-energy module includes: In response to the differential load being less than the maximum output load of the waste-to-energy power generation module, the output load of the waste-to-energy power generation module is adjusted to the differential load; or... In response to the differential load being greater than or equal to the maximum output load of the waste-to-energy power generation module, the output load of the waste-to-energy power generation module is adjusted to the maximum output load.

5. A load regulation method for a power generation system, characterized in that, The method is implemented based on the power generation system as described in any one of claims 1 to 4, and the method includes: Receive load dispatch instructions; Based on the target load in the load dispatching instruction and the current output load of the power generation system, the waste treatment power generation module and / or the steam conditioning module are controlled; The control of the waste-to-energy power generation module and / or the steam regulation module based on the target load in the load dispatch command and the current output load of the power generation system includes: If the target load is less than or equal to the current output load, the difference load between the target load and the current output load is obtained; Obtain the current evaporation rate of the boiler; Based on the current evaporation rate, the first output load of the steam generator set is obtained; wherein, the first output load is the output load of the steam generator set when the flow rate of the first high-temperature steam is at its maximum under the current evaporation rate; Based on the differential load and the first output load, the steam regulating module is controlled to increase the flow rate of the first high-temperature steam; Reduce the evaporation rate of the boiler and control the steam regulation module to reduce the flow rate of the first high-temperature steam until the flow rate of the first high-temperature steam is 0. The method of controlling the waste-to-energy power generation module and / or the steam regulation module based on the target load in the load dispatch instruction and the current output load of the power generation system further includes: If the target load is greater than the current output load, the difference load between the target load and the current output load is obtained; Based on the differential load and the maximum output load of the waste-to-energy power generation module, adjust the output load of the waste-to-energy power generation module; Increase the output load of the steam generator set to the target load, and simultaneously decrease the output load of the waste-to-energy power generation module until the output load of the waste-to-energy power generation module is 0.

6. The method as described in claim 5, characterized in that, The step of controlling the steam regulating module to increase the flow rate of the first high-temperature steam based on the differential load and the first output load includes: In response to the differential load being less than or equal to the first output load, the steam regulation module is controlled to increase the flow rate of the first high-temperature steam to adjust the output load of the steam generator set to the target load; or, In response to the differential load being greater than the first output load, the steam regulating module is controlled to increase the flow rate of the first high-temperature steam to the maximum flow rate.

7. The method as described in claim 5, characterized in that, The adjustment of the output load of the waste-to-energy module based on the differential load and the maximum output load of the waste-to-energy module includes: In response to the differential load being less than the maximum output load of the waste-to-energy power generation module, the output load of the waste-to-energy power generation module is adjusted to the differential load; or... In response to the differential load being greater than or equal to the maximum output load of the waste-to-energy power generation module, the output load of the waste-to-energy power generation module is adjusted to the maximum output load.

8. A computer-readable storage medium for storing instructions, characterized in that, When the instructions are executed, the method as described in any one of claims 5 to 7 is implemented.

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