Control method and control device for power supply system, and power supply system

Abstract

The present application relates to a control method and control device for a power supply system, and a power supply system. The method comprises: when an energy storage unit is in a chargeable state, comparing a current output power of a gas turbine power generation unit with a rated output power of the gas turbine power generation unit (S302); and, when the current output power of the gas turbine power generation unit is less than the rated output power, adjusting the output power of the gas turbine power generation unit on the basis of an operating state of a backup power generation unit and the difference between the current output power and the rated output power of the gas turbine power generation unit until the energy storage unit enters a non-chargeable state (S304).

Description

Control methods, control devices and power supply systems of power supply systems

[0001] Related applications

[0002] This application claims priority to Chinese patent application No. 202411995972.9, filed on December 31, 2024, entitled "Control Method, Control Device and Power Supply System for Power Supply System", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of power technology, and in particular to a control method, control device and power supply system for a power supply system. Background Technology

[0004] In the fields of oil and gas, chemical industry, energy and power, gas turbines and energy storage devices are often used together to supply power to electrical equipment. In the operation of gas turbines and energy storage devices, when the energy storage devices need to be charged, the gas turbine will allocate a portion of its output power to charge the energy storage devices.

[0005] However, when operating in winter or in areas with severe or fluctuating temperatures, energy storage equipment is affected by ambient temperature and needs to be charged frequently. At this time, due to the limited output of the gas turbine and the lack of assistance from the energy storage equipment, if the gas turbine draws some power to charge the energy storage equipment, it may lead to insufficient available power during critical operations, resulting in poor power supply stability. Summary of the Invention

[0006] According to various embodiments of this application, a control method, control device, and power supply system capable of improving power supply stability are provided.

[0007] A control method for a power supply system, the power supply system including an energy storage unit, and a gas turbine power generation unit and a standby power generation unit respectively connected to the energy storage unit; the method includes:

[0008] When the energy storage unit is in a rechargeable state, the current output power of the gas turbine power generation unit is compared with the rated output power of the gas turbine power generation unit;

[0009] When the current output power of the gas turbine power generation unit is less than the rated output power, the output power of the gas turbine power generation unit is adjusted based on the operating status of the standby power generation unit and the difference between the current output power and the rated output power of the gas turbine power generation unit until the energy storage unit enters a non-rechargeable state.

[0010] A control device for a power supply system, the power supply system including an energy storage unit, and a gas turbine power generation unit and a backup power generation unit respectively connected to the energy storage unit; the device includes:

[0011] The comparison module is used to compare the current output power of the gas turbine power generation unit with the rated output power of the gas turbine power generation unit when the energy storage unit is in a rechargeable state.

[0012] The adjustment module is used to adjust the output power of the gas turbine power generation unit when the current output power of the gas turbine power generation unit is less than the rated output power, based on the operating status of the standby power generation unit and the difference between the current output power and the rated output power of the gas turbine power generation unit, until the energy storage unit enters a non-rechargeable state.

[0013] A control system includes a memory and a processor, the memory storing a computer program, and the processor executing the computer program to implement the steps of the method described above.

[0014] A power distribution device, including the aforementioned control system.

[0015] A power supply system, comprising:

[0016] Gas turbine power generation unit;

[0017] Backup power generation unit;

[0018] The energy storage unit is connected to both the gas turbine power generation unit and the backup power generation unit.

[0019] A control unit, used to perform the steps of the above method;

[0020] The power distribution equipment is connected to the control unit, the energy storage unit, the gas turbine power generation unit, and the backup power generation unit, respectively. The power distribution equipment is also used to connect the work equipment and to selectively control the on / off of the electrical connection between the energy storage unit, the gas turbine power generation unit, the backup power generation unit, and the work equipment based on the instructions output by the control unit.

[0021] Details of one or more embodiments of the present invention are set forth in the following drawings and description. Other features, objects, and advantages of the invention will become apparent from the specification, drawings, and claims. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below can be embodiments of this application. For those skilled in the art, other drawings can be obtained based on the disclosed drawings without creative effort.

[0023] Figure 1 is a structural block diagram of a power supply system in one embodiment;

[0024] Figure 2 is a schematic diagram of the power supply system connection in one embodiment;

[0025] Figure 3 is a flowchart illustrating the control method of the power supply system in one embodiment;

[0026] Figure 4 is a flowchart of a power supply system control method in one embodiment;

[0027] Figure 5 is a flowchart of a power supply system control method in another embodiment;

[0028] Figure 6 is a structural block diagram of the control device of the power supply system in one embodiment;

[0029] Figure 7 is an internal structure diagram of a computer device in one embodiment;

[0030] Figure 8 is a schematic diagram of the connection of a power supply system including two supply units in one embodiment;

[0031] Figure 9 is a schematic diagram of the connection of a power supply system including two supply units in another embodiment;

[0032] Figure 10 is a connection diagram of a power supply system including a supply unit in one embodiment. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments may be some, but not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0036] It is understood that the terms “first,” “second,” etc., used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another.

[0037] It is understood that the term "connection" in the following embodiments should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have electrical signal or data transmission with each other.

[0038] It is understandable that "at least one" refers to one or more, and "multiple" refers to two or more. "At least a part of an element" refers to part or all of an element.

[0039] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0040] The current status of gas turbine generator set technology is as follows: ① From its inception to commercialization, the core technology mainly focused on solving the problems of high construction costs and low maturity of technical solutions. Emerging in the 1970s, gas turbine generator set technology was still in its early stages. Due to immature technical solutions, engineering investment was higher than traditional heat tracing solutions, making it difficult for the market to accept. At this time, innovative technologies focused on reducing construction costs and achieving relevant technological advancements. Through continuous technological progress, electric heat tracing has gradually developed into a competitive solution. ② Commercial applications to date mainly focus on improving automation through innovation, developing heat tracing products suitable for various fields (such as explosion-proof measures for flammable and explosive locations, and self-limiting temperature technology for dangerous overheating), aiming to further reduce construction costs and improve the modularity and standardization of components. Currently, it has been widely applied in the oil and gas, chemical, residential and commercial, and energy power sectors. For application scenarios similar to the above standards, existing gas turbine generator set technology is relatively mature; however, for specific applications in certain fields, further innovation and exploration are needed.

[0041] In the fields of oil and gas, chemical industry, and energy and power, especially in oil / gas electric fracturing and drilling operations, the power supply system often consists of a gas turbine and energy storage equipment jointly supplying power to the electrical equipment, as shown in Figure 1. The gas turbine 130 (hereinafter referred to as the gas turbine) works with the energy storage equipment 120 to supply power to the electrical equipment 110. When the energy storage equipment 120 needs to be charged, the gas turbine 130 will use a portion of its output power to charge the energy storage equipment 120. In addition, some operation sites use black-start diesel generators in conjunction with gas turbines for power supply, especially in North American electric fracturing operation sites. However, with traditional technology or one-technology black-start diesel generators, the cost of diesel is higher than that of natural gas per unit of calorific value, according to the current international average cost. Black-start diesel generators only supply power to the outside, which has the problem of high cost.

[0042] In traditional or single-technology applications, when gas turbines are used in conjunction with energy storage devices for power supply, energy storage devices are often used for peak shaving and valley filling to save on equipment investment and increase system utilization. When the energy storage device needs charging, its control mode is adjusted to allocate a portion of the power originally supplied by the gas turbine to charge the energy storage device. In actual operation, at least the following problems exist: ① In emergency operation phases, such as critical moments of fracturing, during peak electricity demand, the gas turbine needs to operate at high load and the energy storage device needs to supply power. Many operations are continuous, and it is not possible to match the energy storage discharge period with the peak electricity demand period. Often, during peak electricity demand, the energy storage device needs to be charged due to power consumption. At this time, due to the limited output of the gas turbine and the lack of assistance from the energy storage device, if a portion of the power is allocated to charge the energy storage device, there is a risk of insufficient available power for critical operations. If this happens, it may affect the stability of power supply for fracturing or drilling, or even cause critical construction to be interrupted, or even cause the turbine to trip, with the risk of well blockage. ② By installing waste heat recovery devices, the power supply burden of the gas turbine can be reduced. However, most waste heat recovery systems are fixed and need to be disassembled, transported to the site, and then reassembled. These gas turbine waste heat recovery technologies are large in size and heavy in weight. For example, for a 15MW gas turbine, the waste heat recovery device of a certain model with conventional technology has a waste heat boiler that is 26m long and 25m high. When disassembled and reassembled on site, on-site installation and commissioning take a long time and cannot be adapted to the current mainstream fracturing and drilling operations. Current business needs require rapid installation and construction, followed by quick departure for the next operation. Existing waste heat recovery devices cannot meet these needs. ③ When operating in winter or in areas with severe or fluctuating temperatures, the low ambient temperature necessitates increased charging and discharging times for energy storage devices. This requires gas turbine generators to reduce their external power output, focusing instead on preheating and more frequent charging of the energy storage devices. The switching frequency between discharging and charging becomes more frequent and unpredictable, exacerbating the risk of impacting the stable power supply for critical operations in traditional technologies. Furthermore, the traditional technology of preheating the ambient temperature before charging the energy storage device leads to excessively long charging times. ④ In some field operations, diesel generators are used to power the gas turbine or charge the energy storage. However, these generators have limited functionality and suffer from high fuel costs and low fuel efficiency. While using energy storage in conjunction with a gas turbine aims to increase the gas-to-electricity ratio of the gas turbine generator and reduce operating costs, the higher price of diesel compared to natural gas significantly reduces the attractiveness of using diesel generators for auxiliary power, impacting the application of this traditional technology.

[0043] To address the aforementioned issues, this application relates to the field of gas turbine power generation and waste heat utilization technology. Specifically, it provides a low-cost control method and power supply system that utilizes waste heat from power generation to solve the problem of poor power supply stability caused by the gas turbine in a gas turbine generator set using a portion of its power to charge the energy storage device.

[0044] The power supply system control method provided in this application embodiment can be applied to the application environment shown in Figure 2. In this application, both the gas turbine power generation unit 0-5101 and the energy storage unit 0-4101 are connected to the power distribution equipment 502 via cable 0-503. The standby power generation unit 0-1101 is connected to the energy storage unit 0-4101 via cable 105-1. The standby power generation unit 0-1101 is connected to the pump unit 107, which is connected to the energy storage unit 0-4101 via pipe 103-1 to provide the hot fluid input for the energy storage unit 0-4101. The standby power generation unit 0-1101 is connected to the fuel processing equipment 102 via pipe 101-2, and the fuel processing equipment 102 is connected to fuel 100 via pipe 101-1. The power distribution equipment 502 is connected to the working power equipment 0-6101, which is connected to the work-operated object 50 (such as a fracturing wellhead) via line 6110. In this application, the energy storage unit 0-4101 is in a rechargeable state, and the gas turbine power generation unit 0-5101... When the current output power of unit 1 is less than the rated output power, waste heat utilization technology is used to improve the operating environment temperature of energy storage unit 0-5101. Based on the operating status of backup power generation unit 0-1101 and the difference between the current output power and the rated output power of gas turbine power generation unit 0-5101, the output power of gas turbine power generation unit 0-5101 is adjusted to charge energy storage unit 0-5101. Compared with the traditional gas turbine combined with energy storage power supply operation, when the energy storage needs to be charged, the gas turbine will allocate a part of the output power to charge the energy storage, resulting in poor power supply stability. By using the waste heat of backup power generation unit 0-1101 to improve the operating environment temperature of energy storage unit 0-5101, the power supply stability is improved. At the same time, a low-cost waste heat utilization device, namely backup power generation unit 0-1101, is used to realize the mobility and rapid commissioning and removal of charging and waste heat utilization devices.

[0045] In an exemplary embodiment, as shown in FIG3, a control method for a power supply system is provided. Taking the application of this method to the power distribution equipment in FIG2 as an example, the method includes:

[0046] S302, when the energy storage unit is in a rechargeable state, compares the current output power of the gas turbine power generation unit with the rated output power of the gas turbine power generation unit.

[0047] The rated output power of the gas turbine power generation unit can be set according to the actual situation, and is not limited in this embodiment. It should be noted that the rated output power is the maximum output power of the gas turbine power generation unit under the current conditions, which is different from the rated power set at the factory. This maximum output power will be affected by temperature, humidity, gas turbine conditions, etc.

[0048] Specifically, the power distribution equipment can detect the current power of the energy storage unit and the current output power of the gas turbine power generation unit. The power distribution equipment determines whether the energy storage unit is in the rechargeable range based on the power (set according to the actual situation). When it is determined that the energy storage unit is in the rechargeable range, that is, the energy storage unit is in the rechargeable state, the power distribution equipment compares the current output power of the gas turbine power generation unit with the rated output power of the gas turbine power generation unit.

[0049] S304. When the current output power of the gas turbine power generation unit is less than the rated output power, the output power of the gas turbine power generation unit is adjusted based on the operating status of the standby power generation unit and the difference between the current output power and the rated output power of the gas turbine power generation unit until the energy storage unit enters a non-rechargeable state.

[0050] Specifically, when the current output power of the gas turbine power generation unit is less than the rated output power, the difference between the current output power and the rated output power of the gas turbine power generation unit can be converted into charging. The power distribution equipment utilizes this difference and, in conjunction with the operating status of the standby power generation unit, adjusts the output power of the gas turbine power generation unit until the energy storage unit provides a full charge indication. At this point, the energy storage unit enters a non-charging state.

[0051] In the control method of the aforementioned power supply system, the power distribution equipment, when the energy storage unit is in a rechargeable state and the current output power of the gas turbine power generation unit is less than the rated output power, uses waste heat utilization technology to adjust the output power of the gas turbine power generation unit according to the operating status of the standby power generation unit and the difference between the current output power and the rated output power of the gas turbine power generation unit, so as to charge the energy storage unit. Compared with the traditional gas turbine combined with energy storage power supply operation, when the energy storage needs to be charged, the gas turbine will allocate a part of the output power to charge the energy storage, resulting in poor power supply stability. The power distribution equipment uses the waste heat of the standby power generation unit to improve the ambient temperature of the energy storage unit, reduce the charging frequency of the energy storage unit, and improve the power supply stability.

[0052] In one embodiment, adjusting the output power of the gas turbine power generation unit based on the operating state of the standby power generation unit and the difference between the current output power and the rated output power of the gas turbine power generation unit includes:

[0053] When the standby power generation unit is in power generation mode, the output power of the gas turbine power generation unit is adjusted to the rated output power, and the output power of the standby power generation unit is reduced, wherein the amount of reduction in the output power of the standby power generation unit is equal to the difference.

[0054] When the standby power generation unit is idle, the output power of the gas turbine power generation unit is adjusted to the rated output power.

[0055] Specifically, the power distribution equipment can directly obtain the operating status of the standby power generation unit. When the standby power generation unit is generating power, since the current output power of the gas turbine power generation unit is less than the rated output power, the gas turbine power generation unit still has spare capacity to charge the energy storage unit. The power distribution equipment adjusts the output power of the gas turbine power generation unit to the rated output power and reduces the output power of the standby power generation unit. The reduced output power is the difference between the current output power and the rated output power of the gas turbine power generation unit, thus realizing waste heat utilization. When the standby power generation unit is idle, the power distribution equipment directly adjusts the output power of the gas turbine power generation unit to the rated output power and uses the extra output power to charge the energy storage unit, thus realizing waste heat utilization.

[0056] In this embodiment, the power distribution equipment adjusts the output power of the gas turbine power generation unit according to the different operating states of the standby power generation unit, so as to realize waste heat utilization and improve power supply stability.

[0057] In one embodiment, the method further includes:

[0058] When the current output power of the gas turbine power generation unit is equal to the rated output power, it is determined whether to control the standby power generation unit to enter the power generation state according to the operation requirements. If it is determined that the standby power generation unit has entered the power generation state, the process returns to the above steps of comparing the current output power of the gas turbine power generation unit with the rated output power of the gas turbine power generation unit.

[0059] For example, the job requirements can be represented by load requirements, which can be obtained according to the actual situation and are not limited in this embodiment.

[0060] Specifically, when the current output power of the gas turbine power generation unit is equal to the rated output power, it can be understood that the gas turbine power generation unit does not have the spare capacity to charge the energy storage unit. At this time, the power distribution equipment can determine whether to control the standby power generation unit to enter the power generation state according to the load demand.

[0061] In practical applications, when the current output power of the gas turbine power generation unit is equal to its rated output power, the standby power generation unit can enter the power generation state or not. Specifically, when the load demand is less than or equal to the current output power, the power distribution equipment controls the standby power generation unit not to enter the power generation state, and when the load demand is greater than the current output power, the power distribution equipment controls the standby power generation unit to enter the power generation state.

[0062] Taking the determination by the power distribution equipment to control the standby power generation unit to enter the power generation state as an example, during the process of the standby power generation unit charging the energy storage unit, the output power of the gas turbine power generation unit may change according to the change of ambient temperature. It is necessary to re-execute the above step of comparing the current output power of the gas turbine power generation unit with the rated output power of the gas turbine power generation unit, and the power distribution equipment re-determines whether the gas turbine power generation unit has spare capacity for power generation. In the embodiment of this application, when the current output power of the gas turbine power generation unit is equal to the rated output power, and the operation demand is greater than the current output power, the power distribution equipment controls the standby power generation unit to enter the power generation state to supply power to the energy storage unit, and re-compares the current output power of the gas turbine power generation unit with the rated output power, so as to realize the use of the standby power generation unit to charge the energy storage unit when the gas turbine power generation unit has no spare capacity, thereby improving the stability of power supply.

[0063] To facilitate understanding by those skilled in the art, the control method of the power supply system is explained below with reference to a specific example, as shown in Figure 4, where energy storage is represented as an energy storage unit, gas turbine as a gas turbine power generation unit, and standby gas turbine as a standby power generation unit.

[0064] The power distribution equipment checks the current power of the energy storage and determines whether the energy storage is in the rechargeable range based on the power. If the power distribution equipment determines that the energy storage is not in the rechargeable range, it returns to the step of re-checking the current power of the energy storage (B0). If the power distribution equipment determines that the energy storage is in the rechargeable range, it continues to determine whether the gas turbine's processing can be converted into a charging part. That is, the power distribution equipment compares the current output power of the gas turbine power generation unit with the rated output power of the gas turbine power generation unit.

[0065] When the gas turbine's output can be converted into a charging component (i.e., the current output power of the gas turbine power generation unit is less than the rated output power), the power distribution equipment determines whether the standby gas generator is charging. If so, it reduces the power generation of the standby gas generator by the difference between the current output power and the rated output power of the gas turbine power generation unit, and adjusts the output power of the gas turbine power generation unit to the rated output power. Otherwise, it directly adjusts the output power of the gas turbine power generation unit to the rated output power. The power distribution equipment then determines whether the current energy storage is fully charged. If fully charged, it provides feedback that the energy storage is fully charged and stops the charging operation of the current charging component (gas turbine and standby gas turbine). If not fully charged, it returns to the step (B1) above, which determines whether the gas turbine's output can be converted into a charging component.

[0066] When there is no output power of the gas turbine that can be converted into a charging component, that is, when the current output power of the gas turbine power generation unit is equal to the rated output power, the power distribution equipment calls the standby gas turbine for charging and returns to the above-mentioned step (B1) of determining whether the gas turbine has a charging component or re-checks the current energy storage capacity.

[0067] In one embodiment, the method further includes:

[0068] If it is confirmed that the current output power of the gas turbine power generation unit meets the operational requirements, compare the current output power of the gas turbine power generation unit with its rated output power.

[0069] When the current output power of the gas turbine power generation unit is less than the rated output power, the output power of the gas turbine power generation unit is increased to ensure that the current output power of the gas turbine power generation unit meets the operational requirements. When the current output power of the gas turbine power generation unit is equal to the rated output power, it is determined whether the energy storage unit is in a rechargeable state.

[0070] The operational requirements can be set according to the actual situation, and are not limited in this embodiment.

[0071] Specifically, after confirming that the current output power of the gas turbine generator unit meets the operational requirements, the power distribution equipment compares the current output power of the gas turbine generator unit with its rated output power. Since the current output power of the gas turbine generator unit may be affected by external factors, such as ambient temperature, which could lead to situations where the operational requirements are not met, if the current output power of the gas turbine generator unit is less than its rated output power, the power distribution equipment increases the output power of the gas turbine generator unit to ensure that the current output power meets the operational requirements. During the process of increasing the power output, if the current output power of the gas turbine generator unit equals its rated output power (meaning the upper limit of the gas turbine generator unit's output power has been reached), the power distribution equipment determines whether the energy storage unit is in a rechargeable state. If the energy storage unit is in a rechargeable state, the power distribution equipment executes the aforementioned step of comparing the current output power of the gas turbine generator unit with its rated output power. If the energy storage unit is not in a rechargeable state, the power distribution equipment repeatedly checks the current energy level of the energy storage unit until the energy storage unit is in a rechargeable state.

[0072] In this embodiment, the power distribution equipment compares the current output power of the gas turbine power generation unit with its rated output power, after confirming that the current output power of the gas turbine power generation unit meets the operational requirements. When the current output power of the gas turbine power generation unit is less than the rated output power, the power distribution equipment increases the output power of the gas turbine power generation unit to cope with the influence of external factors such as cold weather, ensuring that the current output power of the gas turbine power generation unit meets the operational requirements. When the current output power of the gas turbine power generation unit is equal to the rated output power, the power distribution equipment confirms whether the energy storage unit needs to be charged, avoiding the problem of insufficient power during critical operations and improving power supply stability.

[0073] In one embodiment, the method further includes:

[0074] If it is confirmed that the current output power of the gas turbine power generation unit does not meet the operational requirements, and the energy storage unit is in a dischargeable state, the energy storage power supply mode is entered. The energy storage power supply mode is used to characterize the gas turbine power generation unit and the energy storage unit to generate electricity together.

[0075] If it is confirmed that the current output power of the gas turbine power generation unit does not meet the operational requirements, and the energy storage unit is in a non-dischargeable state, then based on the operating status of the standby power generation unit, it is confirmed to enter the standby power supply mode. The standby power supply mode indicates that the gas turbine power generation unit and the standby power generation unit generate electricity together.

[0076] Specifically, if the power distribution equipment confirms that the current output power of the gas turbine power generation unit does not meet the operational requirements, the energy storage unit needs to supply power simultaneously. By acquiring the operating status of the energy storage unit, if the energy storage unit is in a dischargeable state, the power distribution equipment enters the energy storage power supply mode, instructing the gas turbine power generation unit and the energy storage unit to supply power simultaneously. If the energy storage unit is in a non-dischargeable state, the power distribution equipment determines whether the standby power generation unit is in a power supplyable state. If the power generation unit is in a power supplyable state, the power distribution equipment enters the standby power supply mode, and the gas turbine power generation unit and the standby power generation unit supply power simultaneously. If the power generation unit is not in a power supplyable state, the power distribution equipment reports that the current total output has reached its peak and the operational requirements need to be adjusted.

[0077] In this embodiment, the power distribution equipment determines whether to enter the energy storage power supply mode or the backup power supply mode based on the operating status of the energy storage unit and the backup power generation unit, so as to ensure that the operation needs are met, avoid power shortage, and improve the stability of power supply.

[0078] In one embodiment, the method further includes:

[0079] When the current output power of the gas turbine power generation unit is less than the rated output power, the output power of the gas turbine power generation unit is increased to ensure that the current output power of the gas turbine power generation unit meets the operation requirements. When the current output power of the gas turbine power generation unit is less than the rated output power, the output power of the gas turbine power generation unit is increased again, and the process returns to the above steps of comparing the current output power and the rated output power of the gas turbine power generation unit.

[0080] Specifically, if the current output power of the gas turbine power generation unit is less than the rated output power, the power distribution equipment increases the output power of the gas turbine power generation unit to ensure that the current output power of the gas turbine power generation unit meets the operational requirements. If, during the process of increasing the power output, the current output power of the gas turbine power generation unit is less than the rated output power, the power distribution equipment continues to increase the output power of the gas turbine power generation unit to ensure the smooth progress of the power supply operation, and then returns to the above steps of comparing the current output power and the rated output power of the gas turbine power generation unit.

[0081] In this embodiment, when the current output power of the gas turbine power generation unit is less than the rated output power, in order to cope with the influence of external factors such as cold weather, the power distribution equipment increases the output power of the gas turbine power generation unit to ensure that the current output power of the gas turbine power generation unit meets the operational requirements. When the current output power of the gas turbine power generation unit is less than the rated output power, the power distribution equipment continues to increase the output power of the gas turbine power generation unit until the current output power of the gas turbine power generation unit equals the rated output power, thereby avoiding the problem of insufficient power during critical operations and improving power supply stability.

[0082] To facilitate understanding by those skilled in the art, the control method of the power supply system is described below with reference to another specific example, as shown in Figure 5, where energy storage is represented as an energy storage unit, gas turbine as a gas turbine power generation unit, and standby gas power generation as a standby power generation unit.

[0083] The power distribution equipment checks the current operational demand. If it determines that the total current demand is less than the current output of the gas turbine, i.e., confirms that the current output power of the gas turbine generator unit meets the operational demand, it checks whether the gas turbine processing capacity has reached its limit. If the gas turbine processing capacity has not reached its limit, the power distribution equipment increases the output power of the gas turbine generator unit to ensure that the current output power of the gas turbine generator unit meets the operational demand. It then checks whether there is any remaining capacity after the gas turbine processing capacity reaches the current demand. If there is no remaining capacity after the gas turbine processing capacity reaches the current demand, it proceeds to step B0 in Figure 4 above. If there is remaining capacity after the gas turbine processing capacity reaches the current demand, it increases the output power of the gas turbine generator unit, and the power distribution equipment re-compares the current output power of the gas turbine generator unit with its rated output power (A4). When the gas turbine processing capacity reaches its limit, the power distribution equipment determines whether the energy storage is in a dischargeable state (A3).

[0084] If the current total electricity demand exceeds the current output of the gas turbine, meaning the current output power of the gas turbine power generation unit does not meet the operational requirements, the power distribution equipment determines whether the energy storage is in a dischargeable state. If the energy storage is in a dischargeable state, the power distribution equipment enters the energy storage power supply mode and constantly monitors the operating status of the energy storage (A2). If the energy storage is not in a dischargeable state, the power distribution equipment determines whether the backup gas generator is in a power supply state. If yes, the power distribution equipment enters the backup gas generator power supply mode (backup power supply mode). Otherwise, the power distribution equipment reports that the current total output has reached its peak and the operational requirements need to be adjusted. The power distribution equipment then returns to the step of checking the current operational requirements (A0). This addresses the challenges of traditional technologies operating in winter or in regions with frigid or variable temperatures. When ambient temperatures are very low, the increased charging and discharging times of power distribution equipment and energy storage necessitate reducing the useful power output of gas turbine generator sets to preheat and charge the energy storage. This results in more frequent switching between discharge and charging frequencies, and unpredictable circumstances exacerbate the risk of unstable power supply to critical operations during the transition from gas turbine to energy storage. It also addresses the issue of excessively long charging times caused by preheating the ambient temperature before charging in traditional technologies.

[0085] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0086] Based on the same inventive concept, this application also provides a power supply system control device for implementing the power supply system control method described above. The solution provided by this device is similar to the solution described in the above method; therefore, the specific limitations in one or more power supply system control device embodiments provided below can be found in the limitations of the power supply system control method described above, and will not be repeated here.

[0087] In an exemplary embodiment, as shown in FIG6, a control device 600 for a power supply system is provided. The power supply system includes an energy storage unit, and a gas turbine power generation unit and a backup power generation unit respectively connected to the energy storage unit; the device 600 includes:

[0088] Comparison module 601 is used to compare the current output power of the gas turbine power generation unit with the rated output power of the gas turbine power generation unit when the energy storage unit is in a rechargeable state.

[0089] The adjustment module 602 is used to adjust the output power of the gas turbine power generation unit based on the operating status of the standby power generation unit and the difference between the current output power and the rated output power of the gas turbine power generation unit when the current output power of the gas turbine power generation unit is less than the rated output power, until the energy storage unit enters a non-rechargeable state.

[0090] In one embodiment, the adjustment module 602 is further configured to adjust the output power of the gas turbine power generation unit to the rated output power and reduce the output power of the standby power generation unit when the standby power generation unit is in power generation state, wherein the amount of reduction in the output power of the standby power generation unit is equal to the difference.

[0091] When the standby power generation unit is idle, the output power of the gas turbine power generation unit is adjusted to the rated output power.

[0092] In one embodiment, the device 600 further includes a control module, configured to determine whether to control the standby power generation unit to enter the power generation state according to the operational requirements when the current output power of the gas turbine power generation unit is equal to the rated output power, and, if it is determined that the standby power generation unit has entered the power generation state, return to the above-described step of comparing the current output power of the gas turbine power generation unit with the rated output power of the gas turbine power generation unit.

[0093] In one embodiment, the device 600 further includes a control module for comparing the current output power of the gas turbine power generation unit with the rated output power when it is confirmed that the current output power of the gas turbine power generation unit meets the operational requirements.

[0094] When the current output power of the gas turbine power generation unit is less than the rated output power, the output power of the gas turbine power generation unit is increased to ensure that the current output power of the gas turbine power generation unit meets the operational requirements. When the current output power of the gas turbine power generation unit is equal to the rated output power, it is determined whether the energy storage unit is in a rechargeable state.

[0095] In one embodiment, the control module is further configured to, when it is confirmed that the current output power of the gas turbine power generation unit does not meet the operational requirements, enter the energy storage power supply mode when the energy storage unit is in a dischargeable state. The energy storage power supply mode is used to characterize the gas turbine power generation unit and the energy storage unit generating electricity together.

[0096] If it is confirmed that the current output power of the gas turbine power generation unit does not meet the operational requirements, and the energy storage unit is in a non-dischargeable state, then based on the operating status of the standby power generation unit, it is confirmed to enter the standby power supply mode. The standby power supply mode indicates that the gas turbine power generation unit and the standby power generation unit generate electricity together.

[0097] In one embodiment, the control module is further configured to increase the output power of the gas turbine power generation unit when the current output power of the gas turbine power generation unit is less than the rated output power, so as to ensure that the current output power of the gas turbine power generation unit meets the operational requirements; and when the current output power of the gas turbine power generation unit is less than the rated output power, continue to increase the output power of the gas turbine power generation unit and return to the above-mentioned step of comparing the current output power and the rated output power of the gas turbine power generation unit.

[0098] Each module in the control device of the aforementioned power supply system can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the processor of a computer device in hardware form or independent of it, or stored in the memory of the computer device in software form, so that the processor can call and execute the operations corresponding to each module.

[0099] As used herein, the terms “component,” “module,” and “system,” etc., are intended to refer to a computer-related entity that can be hardware, a hardware and software assembly, software, or software in execution. For example, a component can be, but is not limited to, a process running on a processor, a processor, an object, executable code, an executing thread, a program, and / or a computer. For illustration, an application running on a server and the server itself can both be components. One or more components may reside in a process and / or an executing thread, and components may be located within a single computer and / or distributed across two or more computers.

[0100] In an exemplary embodiment, a control system is provided, which can be a server in a computer device, and its internal structure diagram is shown in Figure 7. The computer device includes a processor, memory, input / output interfaces (I / O), and a communication interface. The processor, memory, and I / O interfaces are connected via a system bus, and the communication interface is connected to the system bus via the I / O interfaces. The processor of the computer device provides computing and control capabilities. The memory of the computer device includes non-volatile storage media and internal memory. The non-volatile storage media stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The database of the computer device stores job requirement data. The I / O interfaces of the computer device are used for exchanging information between the processor and external devices. The communication interface of the computer device is used for communicating with external terminals via a network connection. When the computer program is executed by the processor, it implements a control method for a power supply system.

[0101] For example, the control system is located in the power supply system, but is not limited to any particular device within the power supply system.

[0102] Those skilled in the art will understand that the structure shown in Figure 7 may be a block diagram of a partial structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements.

[0103] In one exemplary embodiment, a power distribution device is provided, including the control system described above.

[0104] Specifically, the power distribution equipment can be used to implement the control methods of the power supply system described above.

[0105] In one exemplary embodiment, a power supply system is provided, the power supply system comprising:

[0106] Gas turbine power generation unit;

[0107] Backup power generation unit;

[0108] The energy storage unit is connected to both the gas turbine power generation unit and the backup power generation unit.

[0109] A control unit, used to perform the steps of the above method;

[0110] The power distribution equipment is connected to the control unit, the energy storage unit, the gas turbine power generation unit, and the backup power generation unit, respectively. The power distribution equipment is also used to connect the work equipment and to selectively control the on / off of the electrical connection between the energy storage unit, the gas turbine power generation unit, the backup power generation unit, and the work equipment based on the instructions output by the control unit.

[0111] The type of electrical equipment used for the operation can be set according to the actual situation, and is not limited in this embodiment.

[0112] Specifically, the power distribution equipment is connected to the control unit, the working equipment, the energy storage unit, and the gas turbine power generation unit respectively; the gas turbine power generation unit, the energy storage unit, and the standby power generation unit are connected in sequence; wherein, the control unit, according to the control method of the above power supply system, controls the power distribution equipment, and then selectively controls the on / off of the electrical connection between the energy storage unit, the gas turbine power generation unit, the standby power generation unit, and the working equipment, as well as controls the adjustment of the corresponding output power.

[0113] In one embodiment, as shown in FIG8, the gas turbine power generation unit 0-5101 includes multiple gas turbine generator sets (5101, 5201...5P01), and each gas turbine generator set is connected to the power distribution equipment 502 via cables.

[0114] The energy storage unit 0-4101 includes multiple battery skids (4101-1, 4201-1...4Q01-1) and multiple energy storage control skids (4101-2, 4201-2...4Q01-2). Each battery skid and each energy storage control skid are connected one by one. Each battery skid is connected to the power distribution equipment 502 through a first cable.

[0115] The backup power generation unit 0-1101 includes multiple backup power generation devices (1101, 1201...1N01). Each backup power generation device and each energy storage control skid are connected via a second cable (1101-1, 1201-1...1N01-1, 105-1) and a pipe (103-1, 103-2, 103-3), respectively. Each backup power generation device and each battery skid are connected via a pipe (103-1, 103-2, 103-3).

[0116] Wherein, N, P and Q are all integers greater than or equal to 1, and are not limited in the embodiments of this application.

[0117] Specifically, as shown in Figure 8, the work equipment 0-6101 includes first equipment A (6101-1), second equipment A (6201-1)...Mth equipment A (6M01-1) and first equipment B (6101-2), second equipment B (6201-2)...Mth equipment B (6M01-2), where M is an integer greater than or equal to 1; the power distribution equipment 502 is interconnected with the first equipment A (6101-1), second equipment A (6201-1)...Mth equipment A (6M01-1), first equipment B (6101-2), second equipment B (6201-2)...Mth equipment B (6M01-2) of the work equipment 0-6101 through power cables 603-1 to realize the power transmission for the work.

[0118] The working electrical equipment 0-6101 and the work object 50 (such as a fracturing wellhead) are also connected through the first fluid supply pipe A (6101-3), the second fluid supply pipe A (6201-3) ... the Mth fluid supply pipe A (6M01-3); at the same time, they are also connected through the first fluid supply pipe B (6101-4), the second fluid supply pipe A (6201-4) ... the Mth fluid supply pipe A (6M01-4) to meet the fluid supply requirements under fracturing conditions. When it is drilling or sand mixing, the corresponding components can be replaced, which will not be described in detail; where M is an integer greater than or equal to 1.

[0119] It should be noted that the power distribution equipment 502 is used to perform power output distribution, safety protection, and other operations for one or more gas turbine generator sets and one or more battery skids, either simultaneously or in different sequences.

[0120] In this embodiment, a backup power generation unit is provided in the power supply system to solve the problem of insufficient power during emergency operations. At the same time, the backup power generation unit provided in this embodiment supports mobility and rapid commissioning and dismantling. It is small in size and low in cost, and can adapt to the current mainstream fracturing and drilling operations.

[0121] It is understood that the backup power generation equipment in this application embodiment can be used to start or assist the power supply system in providing power. The backup power generation equipment can be a fuel-fired generator set or a gas turbine generator set.

[0122] In one embodiment, the power supply system further includes a first supply unit and a second supply unit, wherein both the first supply unit and the second supply unit are used to provide fuel;

[0123] The first supply unit is connected to each gas turbine generator set, and the second supply unit is connected to each standby power generation equipment.

[0124] Specifically, the first supply unit is used to provide fuel to each gas turbine generator set; the second supply unit provides fuel to each standby power generation equipment to ensure stable power supply during operation.

[0125] For example, the gas turbine generator set and the standby power generation equipment use the same fuel to generate electricity, which reduces the problem of high fuel costs required by the standby power generation equipment and lowers the operating costs for users.

[0126] In this embodiment, the power supply system is equipped with a first supply unit and a second supply unit to provide fuel to each gas turbine generator set and each standby power generation equipment, ensuring a stable fuel source during operation and improving power supply stability. At the same time, compared with the traditional technology of equipping diesel generator sets for energy storage power supply, the fuel cost is reduced, thereby reducing the operating cost of the power supply system.

[0127] In one embodiment, as shown in FIG8, the first supply unit includes a first fuel processing device 5-102, and the second supply unit includes a second fuel processing device 102.

[0128] The first fuel processing device 5-102 is connected to each gas turbine generator set (5101, 5201...5P01) via the first pipeline (5-101-2, 5-101-3), and the second fuel processing device 102 is connected to each standby generator set (1101, 1201...1N01) via the second pipeline (101-3, 1101-2...1N01-2).

[0129] The types of the first pipeline and the second pipeline can be set according to the actual situation. In this embodiment, pipeline C1 is used as an example for illustration; P and N are both integers greater than or equal to 1.

[0130] Specifically, as shown in Figure 8, the first fuel processing device 5-102 is connected to fuel 5-100 through pipeline 5-101-1, and the second fuel processing device 102 is connected to fuel 100 through pipeline 101-1, so as to realize the fuel supply for each gas turbine generator set (5101, 5201...5P01) and each standby power generation device (1101, 1201...1N01).

[0131] For example, the fuel processing device can be a gas processing module, and the fuel can be natural gas.

[0132] In one embodiment, the power supply system further includes a first supply unit and a second supply unit, wherein both the first supply unit and the second supply unit are used to provide fuel;

[0133] The first supply unit is connected to each gas turbine generator set and the second supply unit, and the second supply unit is connected to each standby power generation equipment.

[0134] Specifically, the first supply unit is used to provide fuel to each gas turbine generator set; the first supply unit provides fuel to each standby power generation equipment through the second supply unit to ensure stable power supply during operation.

[0135] For example, the gas turbine generator set and the standby power generation equipment use the same fuel to generate electricity, which reduces the problem of high fuel costs required by the standby power generation equipment and lowers the operating costs for users.

[0136] In this embodiment, the power supply system is equipped with a first supply unit and a second supply unit to provide fuel to each gas turbine generator set and each standby power generation equipment, ensuring a stable fuel source during operation and improving power supply stability. At the same time, compared with the traditional technology of equipping diesel generator sets for energy storage power supply, the fuel cost is reduced, thereby reducing the operating cost of the power supply system.

[0137] In one embodiment, as shown in FIG9, the first supply unit includes a first fuel processing device 102, and the second supply unit includes a second fuel processing device 103.

[0138] The first fuel processing device 102 is connected to each gas turbine generator set (5101, 5201...5P01) and the second fuel processing device 103 via the first pipeline (5-101-2, 5-101-3, 5-101-4). The second fuel processing device 103 is connected to each standby power generation device (1101, 1201...1N01) via the second pipeline (1101-2, 1201-2...1N01-2).

[0139] The types of the first pipeline and the second pipeline can be set according to the actual situation. In this embodiment, pipeline C1 is used as an example for illustration; P and N are both integers greater than or equal to 1.

[0140] Specifically, as shown in Figure 9, the first fuel processing device 102 is connected to fuel 100 through pipeline 101-1, and the second fuel processing device 103 is connected to the first fuel processing device 102 through pipeline 101-4, so as to realize the fuel supply for each gas turbine generator set (5101, 5201...5P01) and each standby power generation device (1101, 1201...1N01).

[0141] For example, the fuel processing device can be a gas processing module, and the fuel can be natural gas.

[0142] In one embodiment, the power supply system further includes a supply unit for providing fuel;

[0143] The supply unit is connected to each gas turbine generator set and each standby power generation device.

[0144] Specifically, the supply unit is used to provide fuel to each gas turbine generator set and each standby power generation device to ensure stable power supply during operation.

[0145] For example, the gas turbine generator set and the standby power generation equipment use the same fuel to generate electricity, which reduces the problem of high fuel costs required by the standby power generation equipment and lowers the operating costs for users.

[0146] In this embodiment, the power supply system is equipped with a supply unit to provide fuel to each gas turbine generator set and each standby power generation device, ensuring a stable fuel source during operation and improving power supply stability. At the same time, compared with the traditional technology of equipping diesel generator sets for energy storage power supply, the fuel cost is reduced, thereby reducing the operating cost of the power supply system.

[0147] In one embodiment, as shown in FIG10, the supply unit includes a fuel processing device 102;

[0148] The fuel processing equipment 102 is connected to each gas turbine generator set (5101, 5201...5P01) and each standby power generation equipment (1101, 1201...1N01) through the first pipeline (101-2, 101-3, 101-4).

[0149] The type of the first pipeline can be set according to the actual situation. In this embodiment, pipeline C1 is used as an example for explanation; P and N are both integers greater than or equal to 1.

[0150] Specifically, as shown in Figure 10, the first fuel processing device 102 is connected to fuel 100 through pipeline 101-1 to realize the fuel supply for each gas turbine generator set (5101, 5201...5P01) and each standby power generation device (1101, 1201...1N01).

[0151] For example, the fuel processing device can be a gas processing module, and the fuel can be natural gas.

[0152] In one exemplary embodiment, a control system is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the control method of the power supply system described above.

[0153] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the control method of the power supply system described above.

[0154] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the control method of the power supply system described above.

[0155] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of the relevant data must comply with relevant regulations.

[0156] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, artificial intelligence (AI) processors, etc., and are not limited to these.

[0157] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0158] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A control method for a power supply system, the power supply system comprising an energy storage unit, and a gas turbine power generation unit and a standby power generation unit respectively connected to the energy storage unit; the method comprising: When the energy storage unit is in a rechargeable state, the current output power of the gas turbine power generation unit is compared with the rated output power of the gas turbine power generation unit; When the current output power of the gas turbine power generation unit is less than the rated output power, the output power of the gas turbine power generation unit is adjusted based on the operating state of the backup power generation unit and the difference between the current output power and the rated output power of the gas turbine power generation unit until the energy storage unit enters a non-rechargeable state.

2. The method according to claim 1, characterized in that, Based on the operating status of the backup power generation unit and the difference between the current output power and the rated output power of the gas turbine power generation unit, the output power of the gas turbine power generation unit is adjusted, including: When the standby power generation unit is in power generation mode, the output power of the gas turbine power generation unit is adjusted to the rated output power, and the output power of the standby power generation unit is reduced, wherein the amount of reduction in the output power of the standby power generation unit is equal to the difference. When the standby power generation unit is idle, the output power of the gas turbine power generation unit is adjusted to the rated output power.

3. The method according to claim 1, characterized in that, The method further includes: When the current output power of the gas turbine power generation unit is equal to the rated output power, it is determined whether to control the standby power generation unit to enter the power generation state according to the operation requirements. If it is determined that the standby power generation unit enters the power generation state, the process returns to the above-mentioned step of comparing the current output power of the gas turbine power generation unit with the rated output power of the gas turbine power generation unit.

4. The method according to claim 1, characterized in that, The method further includes: If it is confirmed that the current output power of the gas turbine power generation unit meets the operational requirements, compare the current output power of the gas turbine power generation unit with the rated output power. When the current output power of the gas turbine power generation unit is less than the rated output power, the output power of the gas turbine power generation unit is increased to ensure that the current output power of the gas turbine power generation unit meets the operational requirements. When the current output power of the gas turbine power generation unit is equal to the rated output power, it is determined whether the energy storage unit is in the rechargeable state.

5. The method according to claim 4, characterized in that, The method further includes: If it is confirmed that the current output power of the gas turbine power generation unit does not meet the operational requirements, and the energy storage unit is in the dischargeable state, then the energy storage power supply mode is entered. The energy storage power supply mode is used to indicate that the gas turbine power generation unit and the energy storage unit generate electricity together. If it is confirmed that the current output power of the gas turbine power generation unit does not meet the operational requirements, and the energy storage unit is in the non-discharge state, then based on the operating state of the backup power generation unit, it is confirmed to enter the backup power supply mode, which indicates that the gas turbine power generation unit and the backup power generation unit generate electricity together.

6. The method according to claim 4, characterized in that, The method further includes: When the current output power of the gas turbine power generation unit is less than the rated output power, the output power of the gas turbine power generation unit is increased to ensure that the current output power of the gas turbine power generation unit meets the operational requirements. When the current output power of the gas turbine power generation unit is less than the rated output power, the output power of the gas turbine power generation unit is increased again, and the process returns to the above steps of comparing the current output power of the gas turbine power generation unit with the rated output power.

7. A control device for a power supply system, the power supply system comprising an energy storage unit, and a gas turbine power generation unit and a standby power generation unit respectively connected to the energy storage unit; the device comprising: The comparison module is used to compare the current output power of the gas turbine power generation unit with the rated output power of the gas turbine power generation unit when the energy storage unit is in a rechargeable state. The adjustment module is used to adjust the output power of the gas turbine power generation unit based on the operating state of the backup power generation unit and the difference between the current output power and the rated output power of the gas turbine power generation unit when the current output power of the gas turbine power generation unit is less than the rated output power, until the energy storage unit enters a non-rechargeable state.

8. A control system comprising a memory and a processor, the memory storing a computer program, the processor executing the computer program to implement the steps of the method according to any one of claims 1 to 6.

9. A power distribution device comprising the control system of claim 8.

10. A power supply system, the power supply system comprising: Gas turbine power generation unit; Backup power generation unit; An energy storage unit is connected to both the gas turbine power generation unit and the backup power generation unit. A control unit for performing the method according to any one of claims 1 to 6; The power distribution equipment is connected to the control unit, the energy storage unit, the gas turbine power generation unit, and the backup power generation unit respectively. The power distribution equipment is also used to connect the working equipment and to selectively control the on / off of the electrical connection between the energy storage unit, the gas turbine power generation unit, the backup power generation unit, and the working equipment based on the instructions output by the control unit.

11. The power supply system according to claim 10, characterized in that, The gas turbine power generation unit includes multiple gas turbine generator sets, and each gas turbine generator set is connected to the power distribution equipment via a cable. The energy storage unit includes multiple battery skids and multiple energy storage control skids. Each battery skid and each energy storage control skid are connected to each other. Each battery skid is connected to the power distribution equipment via a first cable. The backup power generation unit includes multiple backup power generation devices. Each backup power generation device and each energy storage control skid are connected by a second cable and a pipe, and each backup power generation device and each battery skid are connected by the pipe.

12. The power supply system according to claim 11, characterized in that, The power supply system further includes a first supply unit and a second supply unit, wherein both the first supply unit and the second supply unit are used to provide fuel; The first supply unit is connected to each of the gas turbine generator sets, and the second supply unit is connected to each of the standby power generation devices.

13. The power supply system according to claim 12, characterized in that, The first supply unit includes a first fuel processing device, and the second supply unit includes a second fuel processing device; The first fuel processing device is connected to each of the gas turbine generator sets via a first pipeline, and the second fuel processing device is connected to each of the standby generator sets via a second pipeline.

14. The power supply system according to claim 11, characterized in that, The power supply system further includes a first supply unit and a second supply unit, wherein both the first supply unit and the second supply unit are used to provide fuel; The first supply unit is connected to each of the gas turbine generator sets and the second supply unit, and the second supply unit is connected to each of the standby power generation equipment.

15. The power supply system according to claim 14, characterized in that, The first supply unit includes a first fuel processing device, and the second supply unit includes a second fuel processing device; The first fuel processing device is connected to each of the gas turbine generator sets and each of the standby power generation devices via a first pipeline, and the second fuel processing device is connected to each of the standby power generation devices via a second pipeline.

16. The power supply system according to claim 11, characterized in that, The power supply system further includes a supply unit, wherein the supply unit is used to provide fuel; The supply unit is connected to each of the gas turbine generator sets and each of the standby power generation devices.

17. The power supply system according to claim 16, characterized in that, The supply unit includes fuel processing equipment; The fuel processing equipment is connected to each of the gas turbine generator sets and each of the standby power generation equipment via a first pipeline.

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