Power station unit starting control method, electronic equipment and storage medium

Abstract

The invention provides a power station unit start control method, an electronic device and a storage medium, and the method comprises the steps: obtaining the power generation frequencies of a plurality of preset position points of a power station and the operation state information of each unit of the power station, determining the power generation state of the power station according to the power generation frequencies of the plurality of preset position points, and obtaining the power generation state of the power station according to the operation state information of each unit; determining a non-started unit; when the power generation state of the power station is low-frequency power generation, the starting strategy of the non-started unit is determined according to the multiple power generation frequencies, then the non-started unit can be started according to the starting strategy, whether the non-started unit meets the starting condition or not needs to be judged before the non-started unit is started, and when the non-started unit meets the starting condition, the non-started unit does not meet the starting condition. And controlling the unstarted unit to start according to the starting strategy. Therefore, by judging the power grid frequency and supplying power to the power grid based on the power grid frequency, harm caused by power grid frequency reduction is avoided, and stable, reliable and safe operation of a power system can be ensured.

Description

Technical Field

[0001] This application relates to the field of pumped storage power station unit control technology, and in particular to a power station unit start-up control method, electronic equipment and storage medium. Background Technology

[0002] Pumped storage power stations currently rely on manual startup or automatic startup following dispatch instructions. When the grid frequency drops, it can cause a series of problems, directly affecting the normal operation of power equipment. This may lead to overload or even damage to equipment such as generators and transformers, while also reducing the stability of the power system and triggering a chain reaction that could cause large-scale power outages or grid collapse. Summary of the Invention

[0003] In view of this, the purpose of this application is to propose a power plant unit start-up control method to solve some or all of the technical problems in the background art.

[0004] To achieve the above objectives, this application provides a power plant unit start-up control method, comprising: The power generation frequency at multiple preset locations of the power plant and the operating status information of each unit of the power plant are obtained. The power generation status of the power station is determined based on the power generation frequency of the multiple preset location points; Based on the operating status information of each unit, the units that have not been started are identified; In response to the power generation state being low-frequency power generation, a startup strategy for the unstarted units is determined based on multiple power generation frequencies; Determine whether the non-started unit meets the startup conditions; In response to the non-started unit meeting the start-up conditions, the non-started unit is controlled to start up according to the start-up strategy, wherein the start-up strategy is a strategy of supplying power based on a preset power generation frequency.

[0005] Optionally, the operating status information includes a non-operating status; The step of determining the units that have not been started based on the operating status information of each unit includes: In response to the fact that the operating status information of the unit is non-operating, the unit corresponding to the non-operating status information is designated as an unstarted unit.

[0006] Optionally, determining the power generation status of the power station based on the power generation frequency of the plurality of preset location points includes: The power generation frequency at multiple preset locations is counted to determine a first number of locations where the power generation frequency is lower than a preset frequency threshold; in response to the first number being greater than a first preset number threshold, the power generation state of the power station is determined to be low-frequency power generation. In response to the first quantity being less than or equal to a first preset quantity threshold, the power generation status of the power station is determined to be normal power generation.

[0007] Optionally, the startup strategy includes a first startup strategy and a second startup strategy; The step of determining the startup strategy for unstarted units based on multiple power generation frequencies includes: Calculate the deviation values ​​between the multiple power generation frequencies and the first rated frequency, and count the second number of the deviation values ​​that fall within the first deviation range; In response to the second quantity being greater than a second preset quantity threshold, it is determined that some of the non-started units will execute the first startup strategy; In response to the second quantity being less than or equal to a second preset quantity threshold, it is determined that some of the non-started units will execute a second start-up strategy; wherein the second preset quantity threshold is less than the first preset quantity threshold, and the power generation frequency of the first start-up strategy is greater than the power generation frequency of the second start-up strategy.

[0008] Optionally, the startup strategy includes a third startup strategy; The step of determining the startup strategy for unstarted units based on multiple power generation frequencies includes: Calculate the deviation values ​​between the multiple power generation frequencies and the second rated frequency, and count the third number of deviation values ​​that fall within the second deviation range; The operating status of each unit is determined based on the operating status information of each unit; In response to the third quantity being greater than a third preset quantity threshold, it is determined that all units that have not been started will execute a third start-up strategy; wherein, the third preset quantity threshold is greater than the second quantity threshold, and the number of units started in the third start-up strategy is greater than the number of units started in the first start-up strategy and the second start-up strategy.

[0009] Optionally, the operating status information includes common startup information and power generation information; The startup conditions include preset common startup conditions and preset power generation conditions; The determination of whether the non-started unit meets the start-up conditions includes: In response to the common startup information satisfying the common startup condition and the power generation information satisfying the power generation condition, it is determined that the non-started unit meets the startup condition; In response to the common startup information not meeting the common startup conditions or the power generation information not meeting the power generation conditions, it is determined that the non-started unit does not meet the startup conditions.

[0010] Optionally, after controlling the startup of each unit according to the startup strategy, the process includes: generating and sending a prompt message for the power station to generate low-frequency electricity and automatically start the units.

[0011] Optionally, after controlling the low-frequency self-start of the unit according to the low-frequency self-start strategy, the method includes: in response to receiving a shutdown command from the dispatcher, controlling the unit to shut down.

[0012] Based on the same inventive concept, this disclosure also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable by the processor, wherein the processor, when executing the computer program, implements the test and measurement instrument calibration device as described above.

[0013] Based on the same inventive concept, this disclosure also provides a non-transitory computer-readable storage medium that stores computer instructions for causing a computer to execute the test and measurement instrument calibration device as described above.

[0014] As can be seen from the above, the power plant unit start-up control method, electronic equipment, and storage medium provided in this application acquire the power generation frequency of multiple preset location points of the power plant and the operating status information of each unit of the power plant. Based on the power generation frequency of multiple preset location points, the power generation status of the power plant is determined, that is, whether the power generation status of the power plant is low-frequency power generation. Based on the operating status information of each unit, the non-started units are determined. When the power generation status of the power plant is low-frequency power generation, the start-up strategy of the non-started units is determined based on multiple power generation frequencies. Then, the non-started units can be started according to the start-up strategy. However, before starting the non-started units, it is necessary to determine whether the non-started units meet the start-up conditions, that is, to determine whether the non-started units can be started. When the non-started units meet the start-up conditions, it means that the non-started units can be started. Then, the non-started units are controlled to start according to the start-up strategy, which is a strategy of power supply based on preset power generation frequencies. In this way, by determining whether the grid frequency is low, if it is low, the non-started generating units are started to supply power to the grid. That is, the start and stop of the generating units are controlled based on the grid frequency, which avoids the harm caused by the grid frequency drop and can ensure the stable, reliable and safe operation of the power system. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this application or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic flowchart of a power plant unit start-up control method according to an embodiment of this application; Figure 2This is a schematic diagram illustrating the selection of preset position points in an embodiment of this application. Figure 3 This is a schematic diagram of the structure of a power plant unit start-up control device according to an embodiment of this application; Figure 4 This is a schematic diagram of an electronic hardware structure according to an embodiment of this application. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0018] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in the embodiments of this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0019] Based on the background technology, hydropower station maintenance technology specifically focuses on the design of low-frequency self-starting procedures for pumped storage power station units. This technology is suitable for rapidly starting units when the grid frequency drops, providing timely power support, and avoiding frequency collapse or large-scale power outages. The procedure has a high degree of automation, reducing manual intervention, optimizing unit operation modes, and improving the power station's economy and utilization rate. It also enhances the grid's resilience to disturbances, providing backup capacity during faults or load surges, reducing grid disconnection or equipment damage caused by frequency drops, effectively minimizing economic losses, and ensuring the safe and stable operation of the grid.

[0020] A decline in power grid frequency can trigger a series of serious problems, directly affecting the normal operation of power equipment. It may cause overload or even damage to generators, transformers, and other equipment, while simultaneously reducing the stability of the power system and triggering a chain reaction, leading to widespread blackouts or grid collapse. Frequency anomalies can also impact industrial production and residential life, causing malfunctions in precision equipment, reduced production efficiency, and even endangering public safety. A sustained decline in frequency weakens the economics of the power system, increases frequency regulation costs, and results in energy waste. Therefore, maintaining stable power grid frequency is crucial for ensuring the safe, reliable, and economical operation of the power system.

[0021] To address the aforementioned technical problems, this application provides a power plant unit start-up control method. This method acquires the power generation frequencies at multiple preset locations within the power plant and the operating status information of each unit. Based on the power generation frequencies at these preset locations, the power plant's power generation status is determined, specifically whether it is low-frequency power generation. Based on the operating status information of each unit, non-started units are identified. When the power plant's power generation status is low-frequency, a start-up strategy for the non-started units is determined based on the multiple power generation frequencies. The non-started units can then be started according to this strategy. However, before starting the non-started units, it is necessary to determine whether they meet the start-up conditions, i.e., whether they can be started. If the non-started units meet the start-up conditions, they can be started, and the start-up strategy, which is based on a preset power generation frequency for power supply, is implemented. In this way, by determining whether the grid frequency is low, and if so, starting the non-started units to supply power to the grid, the start-up and shutdown of units are controlled based on the grid frequency. This avoids the hazards caused by a drop in grid frequency and ensures the stable, reliable, safe, and economical operation of the power system.

[0022] The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0023] like Figure 1 As shown, this application provides a power plant unit start-up control method, including the following steps: Step 102: Obtain the power generation frequency of multiple preset locations of the power station and the operating status information of each unit of the power station.

[0024] In this step, such as Figure 2 As shown, multiple preset location points can be set at PT51 on the 500kV I bus side, PT52 on the 500kV line side, and PT53 on the 500kV II bus side of the power station. The operating status information of each unit in the power station includes both operating and non-operating states. Based on the operating status information, it can be determined whether the unit is not running.

[0025] Step 104: Determine the power generation status of the power station based on the power generation frequency of the multiple preset location points.

[0026] In this step, by obtaining the power generation frequency of multiple preset location points, the power generation frequency of each preset location point can be compared with a preset frequency threshold. It can be determined how many preset location points have power generation frequencies lower than the preset frequency threshold. If the number of preset location points with power generation frequencies lower than the preset frequency threshold exceeds the preset number threshold, then it can be determined that the power generation frequency of the power station is at a low frequency, and thus the power generation state of the power station can be determined as low frequency power generation.

[0027] Step 106: Based on the operating status information of each unit, determine the units that have not been started.

[0028] In this step, the operating status information includes the operating status and the non-operating status. By determining the non-operating status of each unit, the units that have not been started can be identified, thereby accurately controlling the non-starting units to generate electricity for the grid and improving the grid frequency.

[0029] Step 108: In response to the power generation state being low-frequency power generation, determine the startup strategy for the unstarted units based on multiple power generation frequencies.

[0030] In this step, when the power generation state is low-frequency power generation, it indicates that the grid frequency has dropped, which will lead to serious hazards. Therefore, the power generation frequency of the grid is increased by starting up the units that have not yet started to generate electricity for the grid and increase the power generation frequency. Based on this, a startup strategy is formulated for the units that have not yet started according to multiple power generation frequencies to achieve grid frequency stability and ensure the safe, reliable and economical operation of the power system.

[0031] Step 110: Determine whether the unstarted unit meets the startup conditions.

[0032] In this step, it is determined whether the unstarted unit meets the startup conditions, which include: preset common startup conditions and power generation conditions. The preset common startup conditions can be that the unit's excitation system, protection system, etc., are normal. The power generation conditions can be that the unit is not in pumping mode, the water levels in the upper and lower reservoirs meet preset water level thresholds, and the unique conditions for power generation are met. In other words, based on these startup conditions, it can be determined whether the unstarted unit can be started. If the unstarted unit can be started, it can be started to supply power to the grid, increasing the grid frequency.

[0033] Step 112: In response to the non-started unit meeting the start-up conditions, control the non-started unit to start up according to the start-up strategy, wherein the start-up strategy is a strategy of supplying power based on a preset power generation frequency.

[0034] In this step, when the starting conditions of the unstarted unit are met, it means that the unstarted unit can be started. Then, the starting strategy is used to control the unstarted unit to start. The starting strategy is a strategy of supplying power based on a preset generation frequency, which can achieve grid frequency stability and ensure the safe, reliable and economical operation of the power system.

[0035] In steps 102-112, by acquiring the power generation frequencies of multiple preset locations and the operating status information of each unit in the power plant, the power generation status of the power plant is determined based on the power generation frequencies of the multiple preset locations. This means determining whether the power plant's power generation status is low-frequency generation. Based on the operating status information of each unit, the non-started units are identified. When the power plant's power generation status is low-frequency generation, a startup strategy for the non-started units is determined based on the multiple power generation frequencies. The non-started units can then be started according to the startup strategy. However, before starting the non-started units, it is necessary to determine whether they meet the startup conditions, which means determining whether the non-started units can be started. When the non-started units meet the startup conditions, it means they can be started, and the startup strategy is used to control the startup of the non-started units. This startup strategy is based on a preset power generation frequency for power supply. In this way, by determining whether the grid frequency is low, if it is, the non-started units are started to supply power to the grid. This controls the start and stop of the units based on the grid frequency, avoiding the hazards caused by a drop in grid frequency and ensuring the stable, reliable, and safe operation of the power system.

[0036] In some embodiments, the running status information includes a non-running status; The step of determining the units that have not been started based on the operating status information of each unit includes: In response to the fact that the operating status information of the unit is non-operating, the unit corresponding to the non-operating status information is designated as an unstarted unit.

[0037] Specifically, the operating status information indicates whether the generating unit has started. Operating status information includes "currently running" and "not running." When the operating status information shows "currently running," it means the unit is operating, and control of a running unit is not required. When the operating status information shows "not running," it means the unit has not been started, and is therefore determined to be a non-started unit. Non-started units can be controlled to start according to a startup strategy to achieve stable, reliable, and safe operation of the power system.

[0038] In some embodiments, determining the power generation status of the power station based on the power generation frequency of the plurality of preset location points includes: The power generation frequency at multiple preset locations is counted to determine a first number of locations where the power generation frequency is lower than a preset frequency threshold; in response to the first number being greater than a first preset number threshold, the power generation state of the power station is determined to be low-frequency power generation. In response to the first quantity being less than or equal to a first preset quantity threshold, the power generation status of the power station is determined to be normal power generation.

[0039] Specifically, the power generation frequency is compared with a preset threshold. If the power generation frequency is lower than the preset threshold, it indicates that the power grid is generating at low frequency. However, to avoid signal acquisition errors, multiple preset location points are designed, and the number of preset location points with power generation frequencies lower than the preset threshold is counted and compared with a first preset threshold. If the number of preset location points is greater than the first preset threshold, and the first preset threshold is n, then the number of preset location points is 2n-1. For example, if there are 3 preset location points, then the first threshold is 2; if there are 5 preset location points, then the first threshold is 3. In this way, by counting the number of low-frequency power generation location points, it can be accurately determined whether the power generation state is low-frequency power generation. If the first number is greater than the first preset threshold, it indicates that the power plant is generating at low frequency. If the first number is less than or equal to the first preset threshold, there may be a possibility of acquiring an erroneous signal; therefore, the power plant's power generation state is determined to be normal power generation.

[0040] In some embodiments, the startup strategy includes a first startup strategy and a second startup strategy; The step of determining the startup strategy for unstarted units based on multiple power generation frequencies includes: Calculate the deviation values ​​between the multiple power generation frequencies and the first rated frequency, and count the second number of the deviation values ​​that fall within the first deviation range; In response to the second quantity being greater than a second preset quantity threshold, it is determined that some of the non-started units will execute the first startup strategy; In response to the second quantity being less than or equal to a second preset quantity threshold, it is determined that some of the non-started units will execute a second start-up strategy; wherein the second preset quantity threshold is less than the first preset quantity threshold, and the power generation frequency of the first start-up strategy is greater than the power generation frequency of the second start-up strategy.

[0041] Specifically, the first rated frequency is the boundary for determining whether the grid frequency is operating at a low frequency. For example, if the first rated frequency is 49.8Hz, and the grid frequency is lower than 49.8Hz, then the grid frequency is determined to be operating at a low frequency. Therefore, the deviation value between each generation frequency and the first rated frequency is calculated, resulting in multiple deviation values. The number of deviation values ​​falling within the first deviation range is counted. For example, if the first deviation value is 2Hz, the second deviation value is 10Hz, and the third deviation value is 15Hz, the first deviation range is 5Hz-20Hz, and there are three deviation values, with two falling within the first deviation range. The second preset threshold is determined based on the number of deviation values. For example, if the number of first deviation values ​​is 2n-1, then the second preset threshold is n. In the example above, there are three deviation values, so the second preset threshold is 2. The generation frequency of the first startup strategy is greater than the generation frequency of the second startup strategy. For example, the generation frequency of the first startup strategy is 49.8Hz, and the generation frequency of the second startup strategy is 55Hz. When the second quantity is greater than the second preset threshold, it indicates that the generation frequency deviates slightly from the first rated frequency. In this case, some of the non-started units can be activated using the first startup strategy. For example, if there are 5 non-started units, 2 units can be controlled to execute the first startup strategy. When the second quantity is less than or equal to the second preset threshold, it indicates that the generation frequency deviates significantly from the first rated frequency. In this case, some of the non-started units can be activated using the second startup strategy. For example, if there are 5 non-started units, 3 units can be controlled to execute the first startup strategy. The number of non-started units executing the first startup strategy is greater than the number executing the second startup strategy. This achieves the effect of tiered power supply to the grid, enabling the grid system to operate economically.

[0042] In some embodiments, the startup strategy includes a third startup strategy; The step of determining the startup strategy for unstarted units based on multiple power generation frequencies includes: Calculate the deviation values ​​between the multiple power generation frequencies and the second rated frequency, and count the third number of deviation values ​​that fall within the second deviation range; The operating status of each unit is determined based on the operating status information of each unit; In response to the third quantity being greater than a third preset quantity threshold, it is determined that all units that have not been started will execute a third start-up strategy; wherein, the third preset quantity threshold is greater than the second quantity threshold, and the number of units started in the third start-up strategy is greater than the number of units started in the first start-up strategy and the second start-up strategy.

[0043] Specifically, the second rated frequency is the boundary for determining whether the grid frequency is operating at a low frequency. For example, if the second rated frequency is 55Hz, and the grid frequency is lower than 55Hz, then the grid frequency is determined to be operating at a low frequency. Therefore, the deviation value between each generation frequency and the second rated frequency is calculated, resulting in multiple deviation values. A third number of deviation values ​​falling within the second deviation range is then counted. For example, if the first deviation value is 10Hz, the second is 20Hz, and the third is 25Hz, the second deviation range is 20Hz-30Hz, and there are three deviation values, with two falling within the second deviation range. The third preset threshold is determined based on the number of deviation values. For example, if the number of first deviation values ​​is 2n-1, then the third preset threshold is n. In the example above, there are three deviation values, so the third preset threshold is 2. For example, if the generation frequency of the third start-up strategy is 60Hz, when the third number is greater than the third preset threshold, all non-started units are controlled to execute the third start-up strategy. The third start-up strategy supplies power to the ultra-low frequency grid.

[0044] In summary, this application proposes three start-up strategies. The first start-up strategy uses a higher power generation frequency than the second start-up strategy, and the number of units executing the first start-up strategy is less than the number executing the second start-up strategy. The third start-up strategy uses a higher power generation frequency than the second start-up strategy. Furthermore, all non-started units are started according to the power generation frequency of the third start-up strategy. That is, the number of non-started units executing the third start-up strategy is greater than the number of non-started units executing the second start-up strategy.

[0045] Based on the above embodiments, the non-started units can also be grouped in this application. For example, units 1 and 2 are grouped together, and units 3 and 4 are grouped together. The control method can also include: the first round of start-up setpoint is 49.85Hz, with a 90s delay to start units 1 and 3. If unit 1 does not meet the start-up conditions, unit 2 is started directly; if unit 3 does not meet the start-up conditions, unit 4 is started directly. The second round of start-up setpoint is 49.85Hz, with a 150s delay to start units 2 and 4. If unit 2 does not meet the start-up conditions, the status of unit 1 will be checked again. If unit 1 meets the start-up conditions, it will be started directly; if unit 4 does not meet the start-up conditions, the status of unit 3 will be checked again. If unit 3 meets the start-up conditions, it will be started directly.

[0046] In some embodiments, the operating status information includes common startup information and power generation information; The startup conditions include preset common startup conditions and preset power generation conditions; The determination of whether the non-started unit meets the start-up conditions includes: In response to the common startup information satisfying the common startup condition and the power generation information satisfying the power generation condition, it is determined that the non-started unit meets the startup condition; In response to the common startup information not meeting the common startup conditions or the power generation information not meeting the power generation conditions, it is determined that the non-started unit does not meet the startup conditions.

[0047] Specifically, the startup conditions include: preset common startup conditions and power generation conditions. The preset common startup conditions can include the normal operation of the unit's excitation system, protection system, etc. Power generation conditions can include the unit not being in pumping mode, and the upper and lower reservoir water levels meeting specific power generation conditions. In other words, based on these startup conditions, it can be determined whether a unit that has not yet started can be started. If a unit that has not yet started can be started, it can supply power to the grid, increasing the grid frequency. The common startup information includes the status of the unit's excitation system and protection system. The power generation information includes pumping status information and upper and lower water level information. When the unit's excitation system and protection system are normal, the pumping status is not pumping, and the upper and lower water levels are greater than the preset water level thresholds, then the unit that has not yet started is determined to meet the startup conditions. When the unit's excitation system and protection system are abnormal, the pumping status is pumping, or the upper and lower water levels are less than the preset water level thresholds, then the unit that has not yet started is determined to not meet the startup conditions. This allows for accurate determination of whether a unit that has not yet started meets the startup conditions, ensuring the safe operation of the unit.

[0048] In some embodiments, after controlling the non-started units to start according to the startup strategy, the method includes: generating and sending a prompt message for the power plant to generate low-frequency electricity and automatically start the units.

[0049] Specifically, the control system of the control unit is integrated into the monitoring system and is put into operation in the form of a soft switch. After the control unit that has not been started starts according to the start-up strategy, it needs to send a unit start-up signal and a low-frequency alarm signal of the power grid to the upper-level master station so that after the system control unit starts, it can be shut down by the dispatcher's instructions.

[0050] In some embodiments, after controlling the non-started unit to start according to the startup strategy, the method includes: controlling the unit to shut down in response to receiving a shutdown command from the dispatcher.

[0051] Specifically, since the system can automatically start generating units to power the grid when the grid frequency is low, but requires the dispatcher to control the unit to stop, the system stops the unit from starting when it receives a shutdown command from the dispatcher. For example, by manually setting values ​​by the operator, a sub-process in the program is called to assign a value to the R6146 register, and then assigns the register value to the switch quantity. Finally, the switch quantity is used in the low-frequency self-starting main program to realize the logic opening and closing, thereby realizing the low-frequency self-starting function to be enabled or disabled, so as to meet the grid and provincial dispatching requirements for the low-frequency self-starting function control of the power station.

[0052] It should be noted that the method in this embodiment can be executed by a single device, such as a computer or server. The method can also be applied in a distributed scenario, where multiple devices cooperate to complete the task. In such a distributed scenario, one of these devices may execute only one or more steps of the method in this embodiment, and the multiple devices will interact with each other to complete the calibration of the test and measurement instrument described above.

[0053] It should be noted that the above description describes some embodiments of this application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in a different order than that shown in the above embodiments and still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0054] Based on the same inventive concept, and corresponding to any of the above embodiments, this application also provides a power plant unit start-up control device.

[0055] refer to Figure 3 The power plant unit start-up control device includes: The acquisition module 202 is configured to acquire the power generation frequency of multiple preset location points of the power station and the operating status information of each unit of the power station; The first determining module 204 is configured to determine the power generation status of the power station based on the power generation frequency of the plurality of preset location points; The second determining module 206 is configured to determine the units that have not been started based on the operating status information of each unit; The third determining module 208 is configured to determine the start-up strategy of the unstarted unit based on a plurality of the power generation frequencies in response to the power generation state being low frequency power generation. The judgment module 210 is configured to determine whether the non-started unit meets the start-up conditions; Control module 212 is configured to start the unstarted unit in response to the unstarted unit meeting the start-up conditions, according to the start-up strategy, wherein the start-up strategy is a strategy of supplying power based on a preset power generation frequency.

[0056] In some embodiments, the second determining module 206 is further configured such that the running status information includes a non-running status; The step of determining the units that have not been started based on the operating status information of each unit includes: In response to the fact that the operating status information of the unit is non-operating, the unit corresponding to the non-operating status information is designated as an unstarted unit.

[0057] In some embodiments, the first determining module 204 is further configured to determine the power generation status of the power station based on the power generation frequency of the plurality of preset location points, including: The power generation frequency at multiple preset locations is counted to determine a first number of locations where the power generation frequency is lower than a preset frequency threshold; in response to the first number being greater than a first preset number threshold, the power generation state of the power station is determined to be low-frequency power generation. In response to the first quantity being less than or equal to a first preset quantity threshold, the power generation status of the power station is determined to be normal power generation.

[0058] In some embodiments, the third determining module 208 is further configured such that the startup strategy includes a first startup strategy and a second startup strategy; The step of determining the unit startup strategy based on multiple power generation frequencies and the operating status information of each unit includes: Calculate the deviation values ​​between the multiple power generation frequencies and the first rated frequency, and count the second number of the deviation values ​​that fall within the first deviation range; In response to the second quantity being greater than a second preset quantity threshold, it is determined that some of the non-started units will execute the first startup strategy; In response to the second quantity being less than or equal to a second preset quantity threshold, it is determined that some of the non-started units will execute a second start-up strategy; wherein the second preset quantity threshold is less than the first preset quantity threshold, and the power generation frequency of the first start-up strategy is greater than the power generation frequency of the second start-up strategy.

[0059] In some embodiments, the third determining module 208 is further configured such that the startup strategy includes a third startup strategy; The step of determining the unit startup strategy based on multiple power generation frequencies and the operating status information of each unit includes: Calculate the deviation values ​​between the multiple power generation frequencies and the second rated frequency, and count the third number of deviation values ​​that fall within the second deviation range; The operating status of each unit is determined based on the operating status information of each unit; In response to the third quantity being greater than a third preset quantity threshold, it is determined that all units that have not been started will execute a third start-up strategy; wherein, the third preset quantity threshold is greater than the second quantity threshold, and the number of units started in the third start-up strategy is greater than the number of units started in the first start-up strategy and the second start-up strategy.

[0060] In some embodiments, the determination module 210 is further configured such that the operating status information includes common startup information and power generation information; The startup conditions include preset common startup conditions and preset power generation conditions; The determination of whether the non-started unit meets the start-up conditions includes: In response to the common startup information satisfying the common startup condition and the power generation information satisfying the power generation condition, it is determined that the non-started unit meets the startup condition; In response to the common startup information not meeting the common startup conditions or the power generation information not meeting the power generation conditions, it is determined that the non-started unit does not meet the startup conditions.

[0061] In some embodiments, a generation module is further included, configured to, after controlling the startup of each unit according to the startup strategy, generate and send a prompt message indicating that the power plant is generating low-frequency power and automatically starting the units.

[0062] In some embodiments, a second control module is further included, configured to, after controlling the low-frequency self-starting of the unit according to the low-frequency self-starting strategy, control the unit to stop starting in response to receiving a dispatcher's instruction to stop the unit starting.

[0063] For ease of description, the above devices are described in terms of function, divided into various modules. Of course, in implementing this application, the functions of each module can be implemented in one or more software and / or hardware.

[0064] The apparatus described above is used to implement a power plant unit start-up control method in any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0065] Based on the same inventive concept, corresponding to any of the above embodiments, this application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement a power plant unit start-up control method as described in any of the above embodiments.

[0066] Figure 4This embodiment illustrates a more specific hardware structure of an electronic device. The device may include a processor 1010, a memory 1020, an input / output interface 1030, a communication interface 1040, and a bus 1050. The processor 1010, memory 1020, input / output interface 1030, and communication interface 1040 are interconnected internally via the bus 1050.

[0067] The processor 1010 can be implemented using a general-purpose CPU (Central Processing Unit), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this specification.

[0068] The memory 1020 can be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory), static storage device, dynamic storage device, etc. The memory 1020 can store the operating system and other applications. When the technical solutions provided in the embodiments of this specification are implemented by software or firmware, the relevant program code is stored in the memory 1020 and is called and executed by the processor 1010.

[0069] The input / output interface 1030 is used to connect input / output modules to realize information input and output. Input / output modules can be configured as components within the device (not shown in the figure) or externally connected to the device to provide corresponding functions. Input devices may include keyboards, mice, touchscreens, microphones, various sensors, etc., while output devices may include displays, speakers, vibrators, indicator lights, etc.

[0070] The communication interface 1040 is used to connect a communication module (not shown in the figure) to enable communication between this device and other devices. The communication module can communicate via wired means (such as USB, Ethernet cable, etc.) or wireless means (such as mobile network, WIFI, Bluetooth, etc.).

[0071] Bus 1050 includes a pathway for transmitting information between various components of the device, such as processor 1010, memory 1020, input / output interface 1030, and communication interface 1040.

[0072] It should be noted that although the above-described device only shows the processor 1010, memory 1020, input / output interface 1030, communication interface 1040, and bus 1050, in specific implementations, the device may also include other components necessary for normal operation. Furthermore, those skilled in the art will understand that the above-described device may only include the components necessary for implementing the embodiments of this specification, and not necessarily all the components shown in the figures.

[0073] The electronic equipment described above is used to implement a power plant unit start-up control method in any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0074] Based on the same inventive concept, corresponding to the methods of any of the above embodiments, this application also provides a non-transitory computer-readable storage medium that stores computer instructions for causing the computer to execute a power plant unit start-up control method as described in any of the above embodiments.

[0075] The computer-readable medium of this embodiment includes permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. Information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transfer medium that can be used to store information accessible by a computing device.

[0076] The computer instructions stored in the storage medium of the above embodiments are used to cause the computer to execute a power plant unit start-up control method as described in any of the above embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0077] It is understood that before using the technical solutions of the various embodiments in this disclosure, users will be informed of the type, scope of use, and usage scenarios of the personal information involved in an appropriate manner, and user authorization will be obtained.

[0078] For example, upon receiving a user's active request, a prompt message is sent to the user to explicitly inform them that the requested operation will require the acquisition and use of the user's personal information. This allows the user to independently choose, based on the prompt message, whether to provide personal information to the software or hardware such as electronic devices, applications, servers, or storage media performing the operations of this disclosed technical solution.

[0079] As an optional but not limited implementation, in response to a user's active request, sending a prompt message to the user can be done via a pop-up window, where the prompt message can be presented in text format. Furthermore, the pop-up window can also include a selection control allowing the user to choose "agree" or "disagree" to provide personal information to the electronic device.

[0080] It is understood that the above notification and user authorization process are merely illustrative and do not constitute a limitation on the implementation of this disclosure. Other methods that comply with relevant laws and regulations may also be applied to the implementation of this disclosure.

[0081] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this application (including the claims) is limited to these examples; within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the embodiments of this application as described above, which are not provided in the details for the sake of brevity.

[0082] Additionally, to simplify the description and discussion, and to avoid obscuring the embodiments of this application, the well-known power / ground connections to integrated circuit (IC) chips and other components may or may not be shown in the provided drawings. Furthermore, the apparatus may be shown in block diagram form to avoid obscuring the embodiments of this application, and this also takes into account the fact that the details of the implementation of these block diagram apparatuses are highly dependent on the platform on which the embodiments of this application will be implemented (i.e., these details should be fully understood by those skilled in the art). While specific details (e.g., circuits) have been set forth to describe exemplary embodiments of this application, it will be apparent to those skilled in the art that the embodiments of this application can be implemented without these specific details or with variations thereof. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0083] Although this application has been described in conjunction with specific embodiments thereof, many substitutions, modifications, and variations of these embodiments will be apparent to those skilled in the art from the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may be used with the embodiments discussed.

[0084] The embodiments of this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of this application should be included within the protection scope of this application.

Claims

1. A power plant unit start-up control method, characterized in that, include: The power generation frequency at multiple preset locations of the power plant and the operating status information of each unit of the power plant are obtained. The power generation status of the power station is determined based on the power generation frequency of the multiple preset location points; Based on the operating status information of each unit, the units that have not been started are identified; In response to the power generation state being low-frequency power generation, a startup strategy for the unstarted units is determined based on multiple power generation frequencies; Determine whether the non-started unit meets the startup conditions; In response to the non-started unit meeting the start-up conditions, the non-started unit is controlled to start up according to the start-up strategy, wherein the start-up strategy is a strategy of supplying power based on a preset power generation frequency.

2. The method according to claim 1, characterized in that, The operating status information includes non-operating status; The step of determining the units that have not been started based on the operating status information of each unit includes: In response to the fact that the operating status information of the unit is non-operating, the unit corresponding to the non-operating status information is designated as an unstarted unit.

3. The method according to claim 1, characterized in that, Determining the power generation status of the power station based on the power generation frequency of the multiple preset location points includes: The power generation frequency at multiple preset locations is counted to determine a first number of locations where the power generation frequency is lower than a preset frequency threshold; in response to the first number being greater than a first preset number threshold, the power generation state of the power station is determined to be low-frequency power generation. In response to the first quantity being less than or equal to a first preset quantity threshold, the power generation status of the power station is determined to be normal power generation.

4. The method according to claim 3, characterized in that, The startup strategy includes a first startup strategy and a second startup strategy; The step of determining the startup strategy for unstarted units based on multiple power generation frequencies includes: Calculate the deviation values ​​between the multiple power generation frequencies and the first rated frequency, and count the second number of the deviation values ​​that fall within the first deviation range; In response to the second quantity being greater than a second preset quantity threshold, it is determined that some of the non-started units will execute the first startup strategy; In response to the second quantity being less than or equal to a second preset quantity threshold, it is determined that some of the non-started units will execute a second start-up strategy; wherein the second preset quantity threshold is less than the first preset quantity threshold, and the power generation frequency of the first start-up strategy is greater than the power generation frequency of the second start-up strategy.

5. The method according to claim 4, characterized in that, The startup strategy includes a third startup strategy; The step of determining the startup strategy for unstarted units based on multiple power generation frequencies includes: Calculate the deviation values ​​between the multiple power generation frequencies and the second rated frequency, and count the third number of deviation values ​​that fall within the second deviation range; The operating status of each unit is determined based on the operating status information of each unit; In response to the third quantity being greater than a third preset quantity threshold, it is determined that all units that have not been started will execute a third start-up strategy; wherein, the third preset quantity threshold is greater than the second quantity threshold, and the number of units started in the third start-up strategy is greater than the number of units started in the first start-up strategy and the second start-up strategy.

6. The method according to claim 1, characterized in that, The operational status information includes common startup information and power generation information; The startup conditions include preset common startup conditions and preset power generation conditions; The determination of whether the non-started unit meets the start-up conditions includes: In response to the common startup information satisfying the common startup condition and the power generation information satisfying the power generation condition, it is determined that the non-started unit meets the startup condition; In response to the common startup information not meeting the common startup conditions or the power generation information not meeting the power generation conditions, it is determined that the non-started unit does not meet the startup conditions.

7. The method according to claim 1, characterized in that, After controlling the startup of each unit according to the startup strategy, the process includes: generating and sending a prompt message for the power station to generate low-frequency power and automatically start the units.

8. The method according to claim 1, characterized in that, After controlling the unit to start at low frequency according to the low-frequency self-start strategy, the method includes: responding to receiving a shutdown command from the dispatcher, controlling the unit to shut down.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the method as described in any one of claims 1 to 8.

10. A non-transitory computer-readable storage medium storing computer instructions, characterized in that, The computer instructions are used to cause the computer to perform the method described in any one of claims 1 to 8.

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