An unattended shelter power station and a control method thereof

Abstract

The application discloses an unattended shelter power station and a control method thereof. The method comprises the following steps: S1, determining whether the commercial power supply is normal; when it is detected that the commercial power supply is abnormal, step S2 is performed; S2, controlling the first switch to be opened, determining whether the first generator set is normal, if the first generator set is normal, controlling the second switch between the first generator set and the power supply cabinet to be closed, if the first generator set is abnormal, step S3 is performed; S3, controlling the second switch to be opened, determining whether the second generator set is normal, if the second generator set is normal, controlling the third switch between the second generator set and the power supply cabinet to be closed, if the second generator set is abnormal, step S4 is performed; S4, controlling the third switch to be opened, and the power supply cabinet supplies power to the load equipment in the shelter power station through the battery pack. The method provided by the application can realize automatic, rapid and accurate conversion of the commercial power supply, the generator set and the battery pack, and can provide stable and reliable power supply for the load equipment.

Description

Technical Field

[0001] This invention relates to the field of modular power station technology, and more specifically, to an unattended modular power station and its control method. Background Technology

[0002] An unmanned modular power station is a highly automated power supply facility that is typically deployed in remote or hard-to-reach locations to provide stable power support, such as in extreme environments like high altitudes, deserts, and islands.

[0003] The existing unmanned modular power station mainly involves laying optical fibers between the modular power station and the monitoring platform (remote control center) of the ground base. Control commands, working status and fault alarms are uploaded through optical fiber communication to realize unmanned operation of the modular power station.

[0004] However, since mobile power stations are generally located far from ground bases and optical fibers are mostly laid in the field, when the optical fiber lines are damaged or subjected to severe interference, the mobile power station cannot receive remote control commands, which can easily lead to the failure of the power supply task and affect the normal operation of the load equipment. Summary of the Invention

[0005] In view of this, the main objective of the present invention is to provide a control method for an unattended modular power station. When the communication between the modular power station and the ground base monitoring platform is interrupted and it cannot receive remote control commands, the modular power station can perform unattended continuous operation according to its own working status, combined with the status of the mains power supply and the load equipment, to ensure the normal operation of the load equipment.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows:

[0007] A control method for an unmanned modular power station includes the following steps:

[0008] S1. Obtain information from the mains power detection module to determine whether the mains power supply is normal. When the mains power supply is normal, control the first switch and ATS switch between the mains power supply and the power cabinet to close, so as to supply power to the load equipment in the modular power station. When an abnormality is detected in the mains power supply, execute step S2.

[0009] S2. Control the first switch to open, turn on the air intake and exhaust components, and determine whether the air intake and exhaust components are working properly. If they are working properly, check whether the coolant temperature of the first generator set is greater than the preset coolant temperature value. If it is, control the start of the first generator set and determine whether the first generator set is working properly. If it is working properly, control the second switch between the first generator set and the power cabinet to close, so as to supply power to the load equipment in the modular power station. If the first generator set is malfunctioning, proceed to step S3.

[0010] S3. Control the second switch to open, start the second generator set, and determine whether the second generator set is working normally. If it is normal, control the third switch between the second generator set and the power cabinet to close, so as to supply power to the load equipment in the modular power station. If the second generator set is not working properly, proceed to step S4.

[0011] S4. Control the third switch to open, and the power cabinet supplies power to the load equipment in the modular power station through the battery pack.

[0012] When a fault is detected in the power cabinet during any of steps S1 to S3, the fourth switch on the maintenance circuit connected in parallel with the power cabinet is closed, and power is supplied to the load equipment in the modular power station through the maintenance circuit.

[0013] Furthermore, in step S2, when the coolant temperature of the first generator set is detected to be below the preset value, the first heater is controlled to start and heat the coolant of the first generator set. When the coolant temperature of the first generator set is above the preset value, the step of starting the first generator set continues.

[0014] Furthermore, the step S2 of determining whether the first generator set is operating normally includes:

[0015] Obtain information on the engine oil level, engine oil temperature, engine oil quality, and engine oil usage time in the first generator set;

[0016] Determine whether the oil level information in the first generator set is greater than the preset value, the oil temperature information is less than the preset value, the oil quality information is less than the preset value, and the oil usage time is less than the preset value.

[0017] When the oil level in the first generator set is lower than the preset oil level, the oil pump and oil filling valve on the oil filling pipeline connected to the first generator set are started to replenish the oil in the first generator set.

[0018] When the oil quality information in the first generator set is greater than the preset value of oil quality or the oil usage time is greater than the preset value of oil usage time, the oil pump and oil drain valve on the oil outlet pipeline connected to the first generator set are started to drain the oil in the first generator set to the waste oil tank.

[0019] When the oil temperature in the first generator set is greater than the preset oil temperature value, step S3 is executed.

[0020] Furthermore, the step S3 of determining whether the second generator set is operating normally includes:

[0021] Obtain information on the engine oil level, engine oil temperature, engine oil quality, and engine oil usage time from the second generator set;

[0022] Determine whether the oil level information in the second generator set is greater than the preset value, whether the oil temperature information is less than the preset value, whether the oil quality information is less than the preset value, and whether the oil usage time is less than the preset value.

[0023] When the oil level in the second generator set is lower than the preset oil level, the oil pump and oil filling valve on the oil filling pipeline connected to the second generator set are started to replenish the oil in the second generator set.

[0024] When the oil quality information in the second generator set is greater than the preset value of oil quality or the oil usage time is greater than the preset value of oil usage time, the oil pump and oil drain valve on the oil outlet pipeline connected to the second generator set are started to drain the oil in the second generator set to the waste oil tank.

[0025] When the oil temperature in the second generator set is greater than the preset oil temperature value, step S4 is executed.

[0026] Furthermore, the determination of whether the first generator set is working properly in step S2 and the determination of whether the second generator set is working properly in step S3 both include:

[0027] Obtain information on fuel level, fuel temperature, and fuel quality in the fuel tank;

[0028] Determine whether the fuel level information is greater than the preset fuel level value, whether the fuel temperature information is less than the preset fuel temperature value, and whether the fuel quality information is less than the preset fuel quality value.

[0029] When the fuel level information is lower than the preset fuel level value or the fuel temperature information is higher than the preset fuel temperature value, the fuel pump and fuel valve are activated to replenish the fuel tank.

[0030] When the fuel quality information is greater than the preset fuel quality value, the fuel pump and fuel valve are activated to replace the fuel in the fuel tank.

[0031] Furthermore, when both the first generator set and the second generator set are operating normally, the first generator set and the second generator set are controlled to perform rotating power supply, wherein the rotating power supply includes:

[0032] a) Obtain the continuous operating time of the first generator set;

[0033] b) Determine whether the continuous operating time of the first generator set is greater than the preset operating time value;

[0034] c) If so, control the start of the second generator set to make the second generator set run in parallel with the first generator set, control the third switch to close, execute the power supply transfer of the load equipment, and after the transfer is completed, control the first generator set to stop and the second switch to open.

[0035] d) Obtain the continuous operating time of the second generator set and determine whether the continuous operating time of the second generator set is greater than the preset value of the operating time;

[0036] e) If so, control the start of the first generator set, so that the second generator set can be connected in parallel with the first generator set, control the second switch to close, execute the power supply transfer of the load equipment, and after the transfer is completed, control the second generator set to stop and the third switch to open.

[0037] f) Repeat steps a)-e). When the mains power supply is detected to be normal, control the first switch and the ATS switch to close and restore the mains power supply to the load equipment in the modular power station.

[0038] Furthermore, the modular power station is also equipped with air conditioning, air heaters, and a fire protection system;

[0039] When the temperature inside the modular power station is detected to be lower than the first preset temperature value and the duration exceeds the first preset time, the air heater and air conditioner are both activated to start heating.

[0040] When the temperature inside the modular power station is detected to be higher than the second preset temperature value, the air heater is controlled to stop running while the air conditioner continues to run, maintaining the temperature inside the modular power station at the second preset temperature value.

[0041] When a fire is detected inside the modular power station, the fire suppression system is activated to spray fire-fighting gases into the modular power station.

[0042] The present invention also aims to provide an unmanned modular power station, comprising a cabin, a control room and load equipment disposed within the cabin, a control system disposed in the control room, the control system comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the above-mentioned control method for the unmanned modular power station.

[0043] Compared with the prior art, the present invention has the following advantages:

[0044] The method provided by this invention can automatically and seamlessly switch and adjust the circuit according to different fault conditions in the mobile power station when communication between the mobile power station and the ground base monitoring platform is interrupted and remote control commands cannot be received. No manual confirmation or judgment is required. It can realize fully automatic, fast and accurate switching of mains power, generator set and battery pack, and provide stable and reliable power to the load equipment. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the overall process of the present invention.

[0046] Figure 2 This is a schematic diagram of the method flow of the present invention.

[0047] Figure 3 This is a schematic diagram of the power supply and distribution principle when the mains power supply is normal in this invention.

[0048] Figure 4 This is a schematic diagram of the power supply and distribution working principle of the first generator set in this invention.

[0049] Figure 5 This is a schematic diagram of the power supply and distribution working principle when the second generator set supplies power in this invention.

[0050] Figure 6 This is a schematic diagram illustrating the power supply and distribution principle of the battery pack in this invention.

[0051] Figure 7 This is a schematic diagram of the power supply and distribution working principle when the power cabinet fails in this invention.

[0052] Figure 8 This is a schematic diagram of the process for determining whether the first generator set is working properly in this invention.

[0053] Figure 9 This is a schematic diagram of the process for determining whether the second generator set is working properly in this invention.

[0054] Figure 10 This is another flowchart illustrating the process of determining whether the first generator set is working properly or whether the second generator set is working properly in this invention.

[0055] Figure 11 This is a schematic diagram of the control system in the unattended modular power station of this invention. Detailed Implementation

[0056] Numerous specific details are set forth in the following description to provide a full understanding of the invention. However, the invention can be practiced in many other ways different from those described herein, and similar modifications can be made by those skilled in the art without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0057] 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 invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0058] Example

[0059] refer to Figure 1 This is a schematic diagram of the overall process of the modular power station in this embodiment of the invention. The fuel handling system includes a fuel filler pump, a fuel filler valve, a fuel drain pump, a fuel drain valve, and temperature sensors, level sensors, and fuel quality sensors installed in the fuel tank. The oil changing system includes a drain pump and drain valve on the oil outlet line connected to the first generator set, a drain pump and drain valve on the oil outlet line connected to the second generator set, an oil filler pump and filler valve on the oil filler line connected to the first generator set, an oil filler pump and filler valve on the oil filler line connected to the second generator set, and temperature sensors, level sensors, and oil quality sensors installed in both the first and second generator sets. The power supply and distribution switching system includes various electrical switches.

[0060] The control system establishes communication with the various components in the modular power station through wiring harnesses, including but not limited to TCP / IP network communication, CAN bus communication, RS485 communication, and AI and I / O communication.

[0061] It should be noted that, under normal circumstances, the unmanned modular power station of this invention is connected to the remote control center at the ground base by an optical fiber. With normal fiber optic communication, remote control can be achieved through the fiber. When the fiber optic cable is interrupted or interfered with, the system can automatically control the station to ensure its normal operation.

[0062] For details, please refer to Figure 2 As shown in the figure, this embodiment provides a control method for an unattended modular power station, including the following steps:

[0063] S1. Obtain information from the mains power detection module to determine whether the mains power supply is normal. When the mains power supply is normal, control the first switch and ATS switch between the mains power supply and the power cabinet to close, so as to supply power to the load equipment in the modular power station. When an abnormality is detected in the mains power supply, proceed to step S2.

[0064] The system uses a mains power detection module to monitor the mains power supply in real time to determine if it is functioning correctly. When a normal mains power supply is detected, such as... Figure 3As shown, the first switch, namely the 3QF circuit breaker, is automatically closed. After the 3QF circuit breaker is closed, the ATS switch automatically switches to the mains power side, and the mains power is output through the power cabinet to supply power to the load equipment.

[0065] To facilitate adjustment of the power cabinet's output power, in some preferred embodiments, a load detection device is installed between the power cabinet and the load device, and the power cabinet's output power is adjusted in real time based on the detection information from the load detection device.

[0066] Optional, such as Figure 1 As shown, the load equipment includes monitors, lights, air conditioners, heaters, etc. in the container, but no specific limitations are made in this embodiment of the invention.

[0067] S2. Control the first switch to open, turn on the air intake and exhaust components, and determine whether the air intake and exhaust components are working properly. If they are working properly, check whether the coolant temperature of the first generator set is greater than the preset coolant temperature value. If it is, control the start of the first generator set and determine whether the first generator set is working properly. If it is working properly, control the second switch between the first generator set and the power cabinet to close, so as to supply power to the load equipment in the modular power station. If the first generator set is malfunctioning, proceed to step S3.

[0068] Specifically, such as Figure 4 As shown, when an abnormality in the mains power supply is detected, i.e., when the mains power supply cannot be supplied normally, the first switch, i.e., the 3QF circuit breaker, is immediately tripped, and the air intake and exhaust louvers in the modular power station, i.e., the air intake and exhaust components, are opened. The working status of the air intake and exhaust components is checked. If it is normal, the first generator set is started and started. After the voltage stabilizes, the second switch is automatically closed. The first generator set supplies power to the load through the power cabinet. Similarly, the load detection device detects the working status of the load equipment and adjusts the output power of the power cabinet in real time.

[0069] The second switch may include a 1QF circuit breaker and a 1KM contactor connected in parallel. When the 1QF circuit breaker fails to close (cannot close), the 1KM contactor will automatically close. After the 1KM contactor closes, the ATS switch will automatically switch to the electromechanical side.

[0070] It should be noted that, in order to improve the working efficiency and service life of the generator set, the system also includes detecting the running time of two or more generator sets, automatically selecting the generator set with the shortest running time as the first generator set, and then executing the self-starting power supply process.

[0071] The air intake and exhaust assembly includes air intake louvers and air exhaust louvers.

[0072] Understandably, generator sets require a certain air intake to provide oxygen for the engine combustion chamber and meet the unit's cooling needs. Therefore, if the air intake and exhaust louvers on both sides of the modular power station cannot open normally, causing either generator set to fail to start, a forced start logic can be implemented in case of an emergency. This logic uses the generator set's intake pressure to force open the intake louvers and the generator set's exhaust pressure to force open the exhaust louvers. In other words, when both louvers fail, to meet emergency requirements, the negative pressure of the generator set's intake during startup can be used to force open the intake louvers, while the powerful exhaust pressure of the generator set's cooling fan can be used to push open the exhaust louvers. This satisfies the generator set's emergency start-up power output, but will trigger an alarm indicating a fault in the air intake and exhaust louvers.

[0073] In this embodiment, the preset value of the coolant temperature can be set to -15℃. When the coolant temperature in the generator set is lower than -15℃, it will cause difficulty in starting. Therefore, it is necessary to determine whether the coolant temperature of the generator set is greater than the preset value of the coolant temperature, that is, whether it is greater than -15℃. If it is greater, it can start and run normally; if it is less than, the first heater is controlled to start to heat the coolant of the first generator set. When it is heated to a temperature greater than -15℃, the heating can be stopped and the steps of starting the first generator set can be continued.

[0074] When the coolant temperature in the first generator set is lower than the preset coolant temperature value, and the first heater malfunctions and fails to heat, resulting in the inability to heat the coolant in the first generator set, it can be determined that the first generator set is malfunctioning. Of course, malfunctions of the first generator set may also include: the generator, fuel engine, or radiator failing to operate normally; insufficient fuel supply or poor fuel quality; and excessively high engine oil temperature, poor engine oil quality, or insufficient engine oil level, etc. If any reason causes the first generator set to fail to operate normally, it can be determined that the first generator set is malfunctioning, and thus the following step S3 will be executed.

[0075] S3. Control the second switch to open, start the second generator set, and determine whether the second generator set is working normally. If it is normal, control the third switch between the second generator set and the power cabinet to close, so as to supply power to the load equipment in the modular power station. If the second generator set is not working properly, proceed to step S4.

[0076] like Figure 5The diagram shows the power supply and distribution working principle of the second generator set in an embodiment of the present invention. When it is determined that the first generator set has an abnormal operation, the second generator set is started. After the voltage of the second generator set stabilizes, the third switch is automatically closed. The second generator set supplies power to the load through the power cabinet. Similarly, the load detection device detects the working status of the load equipment and adjusts the output power of the power cabinet in real time.

[0077] The third switch may include a 2QF circuit breaker and a 2KM contactor connected in parallel. When the 2QF circuit breaker fails to close (cannot close), the 2KM contactor will automatically close. After the 2KM contactor closes, the ATS switch will automatically switch to the electromechanical side, further ensuring the overall power supply effect of the modular power station.

[0078] Similarly, when starting the second generator set, it is also necessary to first determine the temperature of the coolant in the second generator set. When the temperature is lower than the preset value of coolant temperature (-15℃), the second heater can be started to heat the coolant in the second generator set. Heating can be stopped when the coolant temperature is heated to above the preset value.

[0079] Both the second heater and the first heater can be fuel oil heaters, which generate heat by burning fuel oil to raise the temperature of the coolant in the generator set.

[0080] When the coolant temperature of the second generator set is lower than the preset coolant temperature value, and the second heater malfunctions and cannot heat the coolant of the second generator set, the second generator set will fail to start, thus confirming that the second generator set is malfunctioning. Similarly, malfunctions of the second generator set may also include: the generator, fuel engine, or radiator not operating normally; insufficient fuel supply or poor fuel quality; excessively high engine oil temperature, poor engine oil quality, or insufficient engine oil level, etc. If any of these causes the second generator set to fail to operate normally, it can be determined that the second generator set is malfunctioning, and thus the following step S4 will be executed.

[0081] S4. Control the third switch to open, and the power cabinet supplies power to the load equipment in the modular power station through the battery pack.

[0082] Battery banks are installed in the modular power station, such as Figure 6 As shown, when the mains power supply, the first generator set, and the second generator set all malfunction, the circuit between the control power cabinet and the battery is connected, and the battery pack supplies power to the load equipment in the modular power station, serving as an emergency backup.

[0083] like Figure 7As shown, when a fault is detected in the power cabinet during any of steps S1 to S3, the fourth switch 3KM contactor on the maintenance circuit connected in parallel with the power cabinet is automatically closed, and power is supplied to the load equipment in the modular power station through the maintenance circuit.

[0084] It should be noted that in this embodiment of the invention, the power cabinet can be a UPS power cabinet, which is equipped with a UPS power main circuit and a UPS power bypass circuit. When both the UPS power main circuit and the UPS power bypass circuit fail, it is determined that the UPS power cabinet has failed, and then it is determined to perform cross-power cabinet power supply, that is, to control the fourth switch on the maintenance circuit set in parallel with the power cabinet to close, and to supply power to the load equipment in the modular power station through the maintenance circuit.

[0085] like Figure 8 As shown, in some embodiments, determining whether the first generator set is operating normally in step S2 includes the following steps:

[0086] S211, Obtain the oil level information, oil temperature information, oil quality information, and oil usage time of the first generator set;

[0087] In a specific embodiment of the present invention, a temperature sensor, a liquid level sensor, and an oil quality detection sensor can be installed in the oil pan of the first generator set to detect the temperature, liquid level, and oil quality information of the oil in the oil pan, respectively.

[0088] S212. Determine whether the oil level information in the first generator set is greater than the preset value of the oil level, whether the oil temperature information is less than the preset value of the oil temperature, whether the oil quality information is less than the preset value of the oil quality, and whether the oil usage time is less than the preset value of the oil usage time.

[0089] Among them, the preset value for engine oil level can be the minimum operating limit value for the engine; the preset value for engine oil quality can include the maximum viscosity value and the maximum acidity value of the engine oil; the preset value for engine oil temperature is specifically set to the maximum temperature value of the engine oil, such as 150℃;

[0090] S213. When the oil level in the first generator set is lower than the preset oil level value, the oil pump and oil filling valve on the oil filling pipeline connected to the first generator set are started to replenish the oil in the first generator set.

[0091] The modular power station is equipped with a new oil tank. The oil can be replenished to the first generator set through the oil filling pipeline connected to the first generator set. If the oil filling pump and filling valve on the oil filling pipeline connected to the first generator set malfunction, making it impossible to replenish the oil in the first generator set, then the first generator set is determined to be malfunctioning, and step S3 is executed.

[0092] S214. When the oil quality information in the first generator set is greater than the preset value of oil quality or the oil usage time is greater than the preset value of oil usage time, control the oil drain pump and oil drain valve on the oil outlet pipeline connected to the first generator set to start and drain the oil in the first generator set to the waste oil tank.

[0093] The modular power station is also equipped with a waste oil tank. When the oil quality information is detected as insufficient for the normal operation of the first generator set or the oil usage time exceeds one year (this time is adjustable), the oil outlet pipeline connected to the first generator set is opened to drain the oil. Understandably, after draining, an oil replenishment step is also included, specifically the same as in step S213. If the oil drain pump and drain valve on the oil outlet pipeline connected to the first generator set malfunction, preventing the oil in the first generator set from being replaced, it also indicates a malfunction in the first generator set, and step S3 can be executed.

[0094] S215. When the oil temperature information in the first generator set is greater than the preset oil temperature value, then step S3 is executed.

[0095] The preset oil temperature can be set to 150℃. When the oil temperature in the first generator set exceeds 150℃, it is determined that the first generator set is malfunctioning and the operation of the first generator set is stopped to avoid damage to the equipment due to excessively high oil temperature.

[0096] like Figure 9 As shown, in some embodiments, determining whether the second generator set is working properly in step S3 includes the following steps:

[0097] S311. Obtain the oil level information, oil temperature information, oil quality information, and oil usage time from the second generator set;

[0098] S312. Determine whether the oil level information in the second generator set is greater than the preset value of the oil level, whether the oil temperature information is less than the preset value of the oil temperature, whether the oil quality information is less than the preset value of the oil quality, and whether the oil usage time is less than the preset value of the oil usage time.

[0099] S313. When the oil level in the second generator set is lower than the preset oil level value, control the oil pump and oil filling valve on the oil filling pipeline connected to the second generator set to start and replenish the oil in the second generator set.

[0100] S314. When the oil quality information in the second generator set is greater than the preset value of oil quality or the oil usage time is greater than the preset value of oil usage time, control the oil drain pump and oil drain valve on the oil outlet pipeline connected to the second generator set to start and drain the oil in the second generator set to the waste oil tank.

[0101] S315. When the oil temperature information in the second generator set is greater than the preset oil temperature value, then step S4 is executed.

[0102] The basic logic of steps S311 to S314 above is the same as that of steps S211 to S214, and will not be elaborated further here. When the first generator set is malfunctioning and the oil temperature in the second generator set is also higher than the preset oil temperature value, step S4 is executed. Of course, if the oil pump and filler valve on the oil filling line connected to the second generator set are malfunctioning, preventing the oil from being replenished to the second generator set; or if the oil drain pump and drain valve on the oil outlet line connected to the second generator set prevent the oil from being changed, the second generator set is determined to be malfunctioning, and step S4 is executed.

[0103] In some embodiments, a connecting pipe may be provided between the oil filling lines connected to the second generator set and the oil filling lines connected to the first generator set. Both ends of the connecting pipe are located between the oil filling pump and the oil filling valve, with the oil filling valve located near the outlet end. This allows the oil filling line to be connected to the other oil filling line (using the oil pump on the other line to replenish the corresponding generator set's oil) if a connection failure occurs in one line (e.g., the oil filling pump on one line fails). Similarly, a connecting pipe is also provided between the oil outlet lines connected to the second generator set and the oil outlet lines connected to the first generator set, allowing the use of the other oil outlet line to be connected if a connection failure occurs in one line.

[0104] Combination Figure 10 As shown, in some embodiments, determining whether the first generator set is working properly in step S2 and determining whether the second generator set is working properly in step S3 further include:

[0105] S411. Obtain information on fuel level, fuel temperature, and fuel quality in the fuel tank.

[0106] In some other embodiments, two fuel tanks may be provided respectively. In this embodiment, the first generator set and the second generator set can use fuel from the same fuel tank.

[0107] Specifically, the fuel tank is also equipped with a temperature sensor, a liquid level sensor, and a fuel quality sensor; these are used to detect the fuel level, temperature, and quality in the fuel tank, respectively.

[0108] S412. Determine whether the fuel level information is greater than the preset fuel level value, whether the fuel temperature information is less than the preset fuel temperature value, and whether the fuel quality information is less than the preset fuel quality value.

[0109] The preset fuel level can be the minimum required fuel level; fuel quality information can also include fuel viscosity, fuel acid value, etc., and the corresponding preset fuel quality values ​​can include the maximum fuel viscosity, the maximum fuel acidity, etc.; the fuel temperature is set according to the maximum fuel temperature value allowed by the engine, such as 70℃.

[0110] S413. When the fuel level information is lower than the preset fuel level value or the fuel temperature information is higher than the preset fuel temperature value, control the fuel pump and fuel valve to start and replenish the fuel tank.

[0111] A relay box is typically located near the mobile power station. By controlling the fuel pump and fuel valve, the fuel from the gas turbine in the relay box or fuel depot is replenished to the fuel tank, while also cooling the fuel in the tank. If the fuel level is lower than the preset fuel level or the fuel temperature is higher than the preset fuel temperature, and the fuel pump or fuel valve malfunctions, then the second generator set and / or the first generator set is determined to be malfunctioning, and step S4 is executed.

[0112] S414. When the fuel quality information is greater than the preset fuel quality value, control the start of the fuel discharge pump and fuel discharge valve to replace the fuel in the fuel tank.

[0113] When the fuel quality in the fuel tank is detected to be greater than the preset value (unable to meet the power station operation), the fuel discharge pump and fuel discharge valve are opened to discharge the existing fuel and then refill the fuel tank; if the fuel discharge pump or fuel discharge valve is detected to be malfunctioning and cannot be replaced, it is determined that the second generator set and / or the first generator set is malfunctioning, and step S4 is executed.

[0114] Furthermore, in this embodiment of the invention, when both the first generator set and the second generator set are functioning normally, the method further includes controlling the first generator set and the second generator set to perform rotating power supply, wherein the rotating power supply includes:

[0115] a) Obtain the continuous operating time of the first generator set;

[0116] b) Determine whether the continuous operating time of the first generator set is greater than the preset operating time value;

[0117] c) If so, control the start of the second generator set to make the second generator set run in parallel with the first generator set, control the third switch to close, execute the power supply transfer of the load equipment, and after the transfer is completed, control the first generator set to stop and the second switch to open.

[0118] d) Obtain the continuous operating time of the second generator set and determine whether the continuous operating time of the second generator set is greater than the preset value of the operating time;

[0119] e) If so, control the start of the first generator set, so that the second generator set can be connected in parallel with the first generator set, control the second switch to close, execute the power supply transfer of the load equipment, and after the transfer is completed, control the second generator set to stop and the third switch to open.

[0120] f) Repeat steps a)-e). When the mains power supply is detected to be normal, control the first switch and the ATS switch to close and restore the mains power supply to the load equipment in the modular power station.

[0121] By adopting a rotating power supply system, it is possible to ensure that each generator unit in the modular power station is always in optimal operating condition, thereby extending the service life of the generator units.

[0122] In some preferred embodiments, the modular power station is also equipped with an air conditioner, an air heater, and a fire protection system; the control method for the unattended modular power station further includes the following steps:

[0123] When the temperature inside the modular power station is detected to be lower than the first preset temperature value and the duration exceeds the first preset time, the air heater and air conditioner are both activated to start heating.

[0124] The first preset temperature can be 0℃, and the first preset time can be 30 minutes. These settings can be adjusted according to different needs, and no specific restrictions are imposed here.

[0125] When the temperature inside the modular power station is detected to be higher than the second preset temperature value, the air heater is controlled to stop running while the air conditioner continues to run, maintaining the temperature inside the modular power station at the second preset temperature value.

[0126] The second preset temperature value can be set according to the optimal operating temperature of each electrical device in the cabin, and can be selected as 25℃, 20℃, etc. To adapt to harsh outdoor environments, the air conditioning is set to military-grade air conditioning, and two units can be installed for backup.

[0127] It also includes controlling the fire suppression system to activate and spray fire suppression gases into the modular power station when a fire is detected inside; these fire suppression gases include, but are not limited to, heptafluoropropane, carbon dioxide, thermal aerosols, and IG541 mixed gases.

[0128] It should be noted that, under normal circumstances, the unmanned modular power station of this invention is connected to the remote control center of the ground base by an optical fiber, which enables remote control.

[0129] Based on the description of the relevant embodiments of the control method for an unattended modular power station described above, this invention also proposes an unattended modular power station, such as... Figure 1 and Figure 11 As shown, the device includes a cabin, within which a control room 11, a generator room 12, and an exhaust room 13 are provided. The generator room 12 is equipped with at least two generator sets. Load equipment can be optionally installed in the control room 11, the generator room 12, and the exhaust room 13. The control room 11 is equipped with a control system, which includes a memory 110, a processor 120, and a computer program 130 stored in the memory 110 and executable on the processor 120. When the processor 120 executes the computer program, it implements the steps of the control method for the unmanned modular power station as described in any of the above embodiments.

[0130] 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.

[0131] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A control method for an unmanned modular power station, characterized in that, Includes the following steps: S1. Obtain information from the mains power detection module to determine whether the mains power supply is normal. When the mains power supply is normal, control the first switch and ATS switch between the mains power supply and the power cabinet to close, so as to supply power to the load equipment in the modular power station. When an abnormality is detected in the mains power supply, execute step S2. S2. Control the first switch to open, turn on the air intake and exhaust components, and determine whether the air intake and exhaust components are working properly. If they are working properly, check whether the coolant temperature of the first generator set is greater than the preset coolant temperature value. If it is, control the start of the first generator set and determine whether the first generator set is working properly. If it is working properly, control the second switch between the first generator set and the power cabinet to close, so as to supply power to the load equipment in the modular power station. If the first generator set is malfunctioning, proceed to step S3. S3. Control the second switch to open, start the second generator set, and determine whether the second generator set is working normally. If it is normal, control the third switch between the second generator set and the power cabinet to close, so as to supply power to the load equipment in the modular power station. If the second generator set is not working properly, proceed to step S4. S4. Control the third switch to open, and the power cabinet supplies power to the load equipment in the modular power station through the battery pack. When a fault is detected in the power cabinet during any of steps S1 to S3, the fourth switch on the maintenance circuit connected in parallel with the power cabinet is closed, and power is supplied to the load equipment in the modular power station through the maintenance circuit. A first connecting pipe is provided between the oil filling line connected to the second generator set and the oil filling line connected to the first generator set. Both ends of the connecting pipe are located between the oil filling pump and the filling valve, and the filling valve is located near the outlet. When there is a connection failure in one of the filling lines, the control connects to the other oil filling line through the first connecting pipe, and uses the oil filling pump on the other oil filling line to replenish the corresponding generator set with oil. A second connecting pipe is installed between the oil outlet pipeline connected to the second generator set and the oil outlet pipeline connected to the first generator set. When there is a connection failure in one of the oil outlet pipelines, the control system connects to the other oil outlet pipeline through the second connecting pipe.

2. The control method for the unmanned modular power station according to claim 1, characterized in that, In step S2, when the coolant temperature of the first generator set is detected to be below the preset value, the first heater is controlled to start and heat the coolant of the first generator set. When the coolant temperature of the first generator set is above the preset value, the step of starting the first generator set continues.

3. The control method for the unmanned modular power station according to claim 1, characterized in that, Step S2, which involves determining whether the first generator set is operating normally, includes: Obtain information on the engine oil level, engine oil temperature, engine oil quality, and engine oil usage time in the first generator set; Determine whether the oil level information in the first generator set is greater than the preset value, the oil temperature information is less than the preset value, the oil quality information is less than the preset value, and the oil usage time is less than the preset value. When the oil level in the first generator set is lower than the preset oil level, the oil pump and oil filling valve on the oil filling pipeline connected to the first generator set are started to replenish the oil in the first generator set. When the oil quality information in the first generator set is greater than the preset value of oil quality or the oil usage time is greater than the preset value of oil usage time, the oil pump and oil drain valve on the oil outlet pipeline connected to the first generator set are started to drain the oil in the first generator set to the waste oil tank. When the oil temperature in the first generator set is greater than the preset oil temperature value, step S3 is executed.

4. The control method for the unmanned modular power station according to claim 3, characterized in that, Step S3, which involves determining whether the second generator set is operating normally, includes: Obtain information on the engine oil level, engine oil temperature, engine oil quality, and engine oil usage time from the second generator set; Determine whether the oil level information in the second generator set is greater than the preset value, whether the oil temperature information is less than the preset value, whether the oil quality information is less than the preset value, and whether the oil usage time is less than the preset value. When the oil level in the second generator set is lower than the preset oil level, the oil pump and oil filling valve on the oil filling pipeline connected to the second generator set are started to replenish the oil in the second generator set. When the oil quality information in the second generator set is greater than the preset value of oil quality or the oil usage time is greater than the preset value of oil usage time, the oil pump and oil drain valve on the oil outlet pipeline connected to the second generator set are started to drain the oil in the second generator set to the waste oil tank. When the oil temperature in the second generator set is greater than the preset oil temperature value, step S4 is executed.

5. The control method for the unmanned modular power station according to claim 4, characterized in that, The steps S2 and S3, namely determining whether the first generator set is working properly, also include: Obtain information on fuel level, fuel temperature, and fuel quality in the fuel tank; Determine whether the fuel level information is greater than the preset fuel level value, whether the fuel temperature information is less than the preset fuel temperature value, and whether the fuel quality information is less than the preset fuel quality value. When the fuel level information is lower than the preset fuel level value or the fuel temperature information is higher than the preset fuel temperature value, the fuel pump and fuel valve are activated to replenish the fuel tank. When the fuel quality information is greater than the preset fuel quality value, the fuel pump and fuel valve are activated to replace the fuel in the fuel tank.

6. The control method for the unmanned modular power station according to claim 1, characterized in that, When both the first generator set and the second generator set are operating normally, the first generator set and the second generator set are controlled to perform rotating power supply, wherein the rotating power supply includes: a) Obtain the continuous operating time of the first generator set; b) Determine whether the continuous operating time of the first generator set is greater than the preset operating time value; c) If so, control the start of the second generator set to make the second generator set run in parallel with the first generator set, control the third switch to close, execute the power supply transfer of the load equipment, and after the transfer is completed, control the first generator set to stop and the second switch to open. d) Obtain the continuous operating time of the second generator set and determine whether the continuous operating time of the second generator set is greater than the preset value of the operating time; e) If so, control the start of the first generator set, so that the second generator set can be connected in parallel with the first generator set, control the second switch to close, execute the power supply transfer of the load equipment, and after the transfer is completed, control the second generator set to stop and the third switch to open. f) Repeat steps a)-e), and when the mains power supply is detected to be normal, control the first switch and the ATS switch to close, and restore the mains power supply to the load equipment in the modular power station.

7. The control method for the unmanned modular power station according to claim 1, characterized in that, The modular power station is also equipped with air conditioning, air heaters, and a fire protection system; When the temperature inside the modular power station is detected to be lower than the first preset temperature value and the duration exceeds the first preset time, the air heater and air conditioner are both activated to start heating. When the temperature inside the modular power station is detected to be higher than the second preset temperature value, the air heater is controlled to stop running while the air conditioner continues to run, maintaining the temperature inside the modular power station at the second preset temperature value. When a fire is detected inside the modular power station, the fire suppression system is activated to spray fire-fighting gases into the modular power station.

8. An unattended modular power station, characterized in that, The device includes a cabin, within which a control room and load equipment are installed. The control room is equipped with a control system, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the steps of the control method for the unmanned modular power station as described in any one of claims 1 to 7.

Images