Outdoor Power Supply Device Startup Control Method, Controller, and Outdoor Power Supply Device

Abstract

The present invention discloses a starting control method, a controller and an outdoor power supply device for an outdoor power supply device. Among them, the starting control method for the outdoor power supply device is applied to the outdoor power supply device. The outdoor power supply device includes an input component, a battery, an inverter circuit, a controller and a power output interface. The starting control method for the outdoor power supply device includes: obtaining a power starting instruction; when obtaining the power starting instruction, controlling the inverter circuit to start working to invert the DC voltage output by the battery and output an alternating current with a preset starting voltage value through the power output interface; gradually increasing the voltage value of the alternating current output by the inverter circuit through the power output interface until the voltage value of the alternating current output by the inverter circuit through the power output interface is the mains voltage value. The present invention improves the working stability and reliability of the outdoor power supply device.

Description

[0001] This application is a divisional application of 202111675105.3. The filing date of the parent application is December 31, 2021, the application number is 202111675105.3, and the invention-creation name is Outdoor Power Supply Device Startup Control Method, Controller and Outdoor Power Supply Device. Technical Field

[0002] The present invention relates to the technical field of outdoor power supply devices, and particularly to an outdoor power supply device startup control method, a controller and an outdoor power supply device. Background Art

[0003] With the development of the technological level, people's daily life increasingly depends on the supply of electric energy. When users are in the wild without mains power, or when the mains power is temporarily cut off, an outdoor power supply device needs to be used as an emergency power source to drive some electrical loads. However, for some electrical loads, especially incandescent lamps, when they are just lit, due to the too low filament temperature, their impedance is small, and at this time, the current flowing through the incandescent lamp will be very large. If the outdoor power supply device supplies AC 220V power to the incandescent lamp at the beginning of startup, it may instantly cause the output power of the outdoor power supply device to the incandescent lamp to be too large, exceeding its standard power and entering a protection state where it cannot start, which greatly affects the stability and reliability of the outdoor power supply device. Summary of the Invention

[0004] The main purpose of the present invention is to provide an outdoor power supply device startup control method, a controller and an outdoor power supply device, aiming to improve the stability and reliability of the outdoor power supply device.

[0005] To achieve the above object, the present invention proposes an outdoor power supply device startup control method, which is applied to an outdoor power supply device. The outdoor power supply device includes an input component, a battery, an inverter circuit, a controller and a power output interface. The controller is electrically connected to the input component and the inverter circuit respectively. The input end of the inverter circuit is electrically connected to the battery, and the output end of the inverter circuit is electrically connected to the power output interface. The power output interface is used to connect a load;

[0006] The outdoor power supply device startup control method includes:

[0007] Step S100, obtaining a power startup instruction;

[0008] Step S200, when obtaining the power startup instruction, controlling the inverter circuit to start working to invert and convert the DC voltage output by the battery and output an alternating current with a preset startup voltage value through the power output interface;

[0009] Step S300: Gradually increase the voltage value of the alternating current output by the inverter circuit through the power output interface until the voltage value of the alternating current output by the inverter circuit through the power output interface is the mains voltage value.

[0010] Optionally, the outdoor power supply device further includes a temperature detection component, and the temperature detection component is electrically connected to the controller. Before performing the step 200, the outdoor power supply device startup control method further includes:

[0011] Step S300: Obtain the ambient temperature;

[0012] Step S400: Select the corresponding preset startup voltage value according to the ambient temperature and a preset ambient temperature - preset startup voltage value preset table.

[0013] Optionally, the step S300 is specifically:

[0014] Step S310: Start timing when the power startup instruction is obtained;

[0015] Step S320: Every time a preset voltage regulation time elapses, control the voltage value of the alternating current output by the inverter circuit through the power output interface to increase by a preset voltage regulation value until the voltage value of the alternating current output by the inverter circuit through the power output interface is the mains voltage value.

[0016] Optionally, the outdoor power supply device further includes a current detection component. The current detection component is connected in series on the path between the inverter circuit and the power output interface, and the output end of the current detection component is electrically connected to the controller. The step S320 is specifically:

[0017] Step S321: Every time a preset voltage regulation time elapses, control the voltage value of the alternating current output by the inverter circuit through the power output interface to increase by a preset voltage regulation value, detect the current value of the alternating current output by the inverter circuit through the power output interface, and generate current detection information;

[0018] Step S322: When it is determined according to the current detection information that the current value of the alternating current output by the inverter circuit through the power output interface is greater than a preset value, control the voltage value of the alternating current output by the inverter circuit through the power output interface to decrease by the preset voltage regulation value, and return to execute step S321 until the voltage value of the alternating current output by the inverter circuit through the power output interface is the mains voltage value.

[0019] Optionally, the outdoor power supply device further includes a current detection component, which is connected in series on the path between the inverter circuit and the power output interface, and the output end of the current detection component is electrically connected to the controller. The specific steps of S320 are as follows:

[0020] Step S323: Every time a preset voltage regulation time elapses, detect the current value of the alternating current output by the inverter circuit through the power output interface, and generate current detection information;

[0021] Step S324: According to the current detection information and the preset resistance value of the current detection component, determine the resistance value of the load connected to the power output interface, and determine the estimated future power according to the resistance value and the voltage value of the alternating current after increasing the preset voltage value;

[0022] Step S325: When it is determined that the estimated future power is less than the standard power, control the voltage value of the alternating current output by the inverter circuit through the power output interface to increase by a preset voltage regulation value, and return to execute step S323 until the voltage value of the alternating current output by the inverter circuit through the power output interface is the mains voltage value.

[0023] Optionally, the steps of S320 further include:

[0024] Step S326: When it is determined that the estimated future power reaches the standard power, control the voltage value of the alternating current output by the inverter circuit through the power output interface to remain unchanged, and return to execute step S323.

[0025] Optionally, the outdoor power supply device further includes a current detection component, which is connected in series on the path between the inverter circuit and the power output interface, and the output end of the current detection component is electrically connected to the controller. The specific steps of S300 are as follows:

[0026] Step S330: Start timing when the power start instruction is obtained;

[0027] Step S340: Every time a preset voltage regulation time elapses, detect the current value of the alternating current output by the inverter circuit through the power output interface, and generate current detection information;

[0028] Step S350: According to the current detection information and the preset resistance value of the current detection component, determine the resistance value of the load connected to the power output interface;

[0029] Step S360: Calculate the future safe voltage value according to the standard power and the resistance value;

[0030] Step S370: Control the voltage value of the AC voltage output by the inverter circuit through the power output interface to increase to the future safe voltage value, and return to execute step S340 until the voltage value of the alternating current output by the inverter circuit through the power output interface is the mains voltage value.

[0031] The present invention also provides a controller, which includes:

[0032] A memory;

[0033] A processor; and

[0034] An outdoor power supply device startup control program stored on the memory and executed by the processor. When the outdoor power supply device startup control program is executed by the processor, it implements the outdoor power supply device startup control method as described in any one of the above.

[0035] The present invention also provides an outdoor power supply device, which includes:

[0036] An input component, a battery, an inverter circuit, a power output interface, a temperature detection component, a current detection component, and the controller as described above;

[0037] Wherein, the controller is electrically connected to the output ends of the input component, the inverter circuit, the temperature detection component, and the current detection component respectively; the input end of the inverter circuit is electrically connected to the battery, the output end of the inverter circuit is electrically connected to the power output interface, and the current detection component is connected in series on the path between the inverter circuit and the power output interface.

[0038] Optionally, the outdoor power supply device further includes:

[0039] A voltage detection component, the detection end of the voltage detection component is electrically connected to the output end of the inverter circuit, and the output end of the voltage detection component is electrically connected to the controller;

[0040] The voltage detection component is used to detect the voltage value of the alternating current output by the inverter circuit.

[0041] In the technical solution of the present invention, first, a power supply start instruction is obtained. Then, when the power supply start instruction is obtained, the inverter circuit is controlled to start working, so as to invert and convert the DC voltage output by the battery and output an alternating current with a preset start voltage value through the power output interface. Finally, the voltage value of the alternating current output by the inverter circuit through the power output interface is gradually increased until the voltage value of the alternating current output by the inverter circuit through the power output interface is the mains voltage value. In this way, in practical applications, when the user connects a load, especially an incandescent lamp, to the power output interface and starts the outdoor power supply device, it will not enter the protection state due to the large current generated at the beginning, and the output AC voltage value will be gradually increased until the output alternating current is the mains voltage value to normally drive the load, such as an incandescent lamp, to work. The present invention improves the working stability and reliability of the outdoor power supply device. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0043] Figure 1 It is a flowchart of the method steps of an embodiment of the start control method for the outdoor power supply device of the present invention;

[0044] Figure 2 It is a flowchart of the method steps of another embodiment of the start control method for the outdoor power supply device of the present invention;

[0045] Figure 3 It is a flowchart of the method steps of yet another embodiment of the start control method for the outdoor power supply device of the present invention;

[0046] Figure 4 It is a flowchart of the method steps of still another embodiment of the start control method for the outdoor power supply device of the present invention;

[0047] Figure 5 It is a flowchart of the method steps of another embodiment of the start control method for the outdoor power supply device of the present invention;

[0048] Figure 6 It is a flowchart of the method steps of yet another embodiment of the start control method for the outdoor power supply device of the present invention;

[0049] Figure 7 It is a flowchart of the method steps of still another embodiment of the start control method for the outdoor power supply device of the present invention;

[0050] Figure 8This is a schematic circuit diagram of an embodiment of the outdoor power supply device of the present invention.

[0051] Explanation of the reference numerals in the drawings:

[0052] Label Name Label Name 00 Controller 01 Memory 02 Processor 10 Input component 20 Battery 30 Inverter circuit 40 Power output interface 50 Current detection component 60 Temperature detection component 70 Voltage detection component

[0053] The realization of the object, functional features and advantages of the present invention will be further described in conjunction with the embodiments with reference to the accompanying drawings. Specific embodiments

[0054] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0055] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0056] It should be noted that in this article, step codes such as S100 and S200 are adopted. The purpose is to more clearly and briefly express the corresponding content, and do not constitute a substantial limitation in sequence. When those skilled in the art implement specifically, they may execute S200 first and then S100, etc., but these should all be within the protection scope of this application.

[0057] It should be understood that with the development of the scientific and technological level, people's daily life is increasingly inseparable from the supply of electric energy. When users are in the wild without mains power, or when the mains power is temporarily cut off, an outdoor power supply device needs to be used as an emergency power supply to drive some electrical loads. However, for some electrical loads, especially incandescent lamps, when they are just lit, due to the too low filament temperature, their impedance is small. At this time, the current flowing through the incandescent lamp will be very large. If the outdoor power supply device supplies AC220V power to the incandescent lamp at the beginning of startup, it may instantly cause the output power of the outdoor power supply device to the incandescent lamp to be too large, exceeding its standard power and entering a protection state and unable to start, which greatly affects the stability and reliability of the operation of the outdoor power supply device.

[0058] To this end, the present invention proposes a method for starting and controlling an outdoor power supply device, which is applied to an outdoor power supply device. The outdoor power supply device includes an input component 10, a battery 20, an inverter circuit 30, a controller 00, and a power output interface 40. The controller 00 is electrically connected to the input component 10 and the inverter circuit 30 respectively. The input end of the inverter circuit 30 is electrically connected to the battery 20, and the output end of the inverter circuit 30 is electrically connected to the power output interface 40. The power output interface 40 is used to connect a load;

[0059] Reference Figure 8 , in this embodiment, the input component 10 can be implemented by a touch screen or a button array, and the user can trigger the input component 10 to implement an output power start instruction;

[0060] In this embodiment, the controller 00 can be implemented by an MCU, a DSP (Digital Signal Process, digital signal processing chip), an FPGA (Field Programmable Gate Array, programmable logic gate array chip), etc. When the controller 00 determines the preset start voltage value, it can output a signal with a corresponding duty cycle according to the voltage-PWM duty cycle to control the inverter circuit 30 to invert the battery 20 voltage and then output an alternating current with a preset start voltage value to the load through the power output interface 40;

[0061] It can be understood that in order to ensure the reliability and stability of the actual output voltage of the inverter circuit 30, the outdoor power supply device can also be provided with a voltage detection component 70 to detect the actual voltage value of the alternating current output by the inverter circuit 30 and feedback it to the controller 00. The controller 00 will correspondingly adjust the duty cycle of the output PWM signal so that the actual output alternating current voltage value of the inverter circuit 30 is the same as that required by the controller 00 for the inverter circuit 30 to output. The voltage detection component 70 can be implemented by a resistor voltage division circuit.

[0062] Reference Figures 1 - 8 , in an embodiment of the present invention, the method for starting and controlling an outdoor power supply device includes:

[0063] Step S100, obtaining a power start instruction;

[0064] Step S200, when obtaining the power start instruction, controlling the inverter circuit 30 to start working to invert and convert the DC voltage output by the battery 20 and then output an alternating current with a preset start voltage value through the power output interface 40;

[0065] In this embodiment, the preset starting voltage value is lower than the mains voltage value, such as AC180V, AC160V, AC150V, etc. The preset starting voltage value can be preset by the R & D personnel as one or multiple, and the controller 00 selects the most suitable one according to the detected working environment parameters.

[0066] Step S300: Gradually increase the voltage value of the alternating current output by the inverter circuit 30 through the power output interface 40 until the voltage value of the alternating current output by the inverter circuit 30 through the power output interface 40 is the mains voltage value.

[0067] In this embodiment, after the controller 00 controls the inverter circuit 30 to output alternating current with a preset starting voltage value through the power output interface 40, it will gradually control the inverter circuit 30 to increase the output voltage value of the alternating current. Optionally, it can be calculated according to the time when the alternating current starts to be output. For example, if the preset starting voltage value is AC180V, the inverter circuit 30 is uniformly controlled to increase the output voltage value of the alternating current within the subsequent 3S until the voltage value of the alternating current output by the inverter circuit 30 through the power output interface 40 is the mains voltage value. In this way, in practical applications, when the user connects a load, especially an incandescent lamp, to the power output interface 40 and starts the outdoor power supply device, it will not enter the protection state due to the large current generated at the beginning, and will gradually increase the output AC voltage value until the output alternating current is the mains voltage value to normally drive the load, such as an incandescent lamp to work. The present invention improves the working stability and reliability of the outdoor power supply device.

[0068] In the technical solution of the present invention, first, a power-on instruction is obtained, and then when the power-on instruction is obtained, the inverter circuit 30 is controlled to start working to invert and convert the DC voltage output by the battery 20 and output alternating current with a preset starting voltage value through the power output interface 40. Finally, the voltage value of the alternating current output by the inverter circuit 30 through the power output interface 40 is gradually increased until the voltage value of the alternating current output by the inverter circuit 30 through the power output interface 40 is the mains voltage value. In this way, in practical applications, when the user connects a load, especially an incandescent lamp, to the power output interface 40 and starts the outdoor power supply device, it will not enter the protection state due to the large current generated at the beginning, and will gradually increase the output AC voltage value until the output alternating current is the mains voltage value to normally drive the load, such as an incandescent lamp to work. The present invention improves the working stability and reliability of the outdoor power supply device.

[0069] It should be understood that generally users use the outdoor power supply device in an outdoor environment, especially in a wild environment. Therefore, the environmental temperature is very unstable, which may be minus 30 degrees or plus 30 degrees. Since the resistance value of the load is affected by the environmental temperature, a single preset starting voltage may not be suitable for each environment.

[0070] To this end, referring to Figure 2 , in an embodiment of the present invention, the outdoor power supply device further includes a temperature detection component 60, and the temperature detection component 60 is electrically connected to the controller 00. Before performing step 200, the outdoor power supply device startup control method further includes:

[0071] Step S300: Obtain the ambient temperature;

[0072] In this embodiment, the temperature detection component 60 can be implemented by a thermistor or an infrared temperature sensor. The temperature detection component 60 can detect the current ambient temperature and give the detected result to the controller 00 so that the controller 00 can determine the current ambient temperature.

[0073] Step S400: Select a corresponding preset startup voltage value according to the ambient temperature and the preset ambient temperature - preset startup voltage value preset table.

[0074] In this embodiment, the preset ambient temperature - preset startup voltage value preset table can be obtained by R & D personnel through multiple tests and preset in the controller 00. When the controller 00 obtains a power startup instruction, it will determine the current ambient temperature and select a preset startup voltage value accordingly. For example, "when the ambient temperature is -30 degrees Celsius, select a preset startup voltage value of AC180V; when the ambient temperature is 30 degrees Celsius above zero, select a preset startup voltage value of AC160V", and control the inverter circuit 30 to output an alternating current with a voltage value of the preset startup voltage value according to the content of the above embodiment. In this way, in practical applications, the preset startup voltage value can be dynamically adjusted according to the ambient temperature, so as to ensure that the outdoor power supply device will not enter the overload protection state when it starts up in any environment, effectively ensuring the reliability and stability of the outdoor power supply device.

[0075] Referring to Figure 3 , in an embodiment of the present invention, step S300 is specifically:

[0076] Step S310: Start timing when a power startup instruction is obtained;

[0077] In this embodiment, a timing module can be set inside the controller 00 and is electrically connected to the processor 02 inside the controller 00, so that the controller 00 starts timing by itself when it obtains a power startup instruction transmitted from the input device. Optionally, the controller 00 can also be electrically connected to an external timer, and when it obtains a power startup instruction transmitted from the input device, it controls the timer to start timing and receives the timing result transmitted from the timer.

[0078] Step S320: Every time a preset voltage regulation time elapses, control the voltage value of the AC voltage output by the inverter circuit 30 through the power output interface 40 to increase by a preset voltage regulation value until the voltage value of the alternating current output by the inverter circuit 30 through the power output interface 40 reaches the mains voltage value.

[0079] In this embodiment, the preset voltage regulation time can be set by R & D personnel according to requirements, such as 1S. At the same time, the preset voltage regulation value can also be preset by the inventor, such as 10V. After the controller 00 starts timing and obtains the power startup instruction to control the inverter circuit 30 to start outputting alternating current with a preset startup voltage value through the power output interface 40, every time the preset voltage regulation time elapses, it will control the inverter circuit 30 to increase the voltage value of the output alternating current, and the increased amplitude is the preset voltage regulation value, until the mains voltage value is reached. For example, "start outputting AC180V, output 190V after 1S, output AC200V after 2S, output AC210V after 3S, output AC220V after 4S". In this way, when the outdoor power supply device is just started, the current output to the load, especially the incandescent lamp, is not so high, so as to prevent it from entering the protection state, and it can recover to the normal mains voltage output within a subsequent period of time to drive the load to work normally.

[0080] It should be understood that in actual applications, the resistance value of the load, especially the incandescent lamp, increases with the increase of temperature. When the voltage rises after the preset voltage regulation time, the resistance value of the incandescent lamp may not have risen to a relatively large value at this time, which may cause the AC power output by the outdoor power supply device to exceed the standard power for a period of time and then enter the overload protection state again.

[0081] Therefore, in this embodiment, optionally, referring to Figure 4 , the outdoor power supply device further includes a current detection component 50. The current detection component 50 is connected in series on the path between the inverter circuit 30 and the power output interface 40. The output end of the current detection component 50 is electrically connected to the controller 00. Step S320 is specifically:

[0082] Step S321: Every time a preset voltage regulation time elapses, control the voltage value of the AC voltage output by the inverter circuit 30 through the power output interface 40 to increase by a preset voltage regulation value, detect the current value of the alternating current output by the inverter circuit 30 through the power output interface 40, and generate current detection information;

[0083] In this embodiment, the current detection component 50 can be implemented by using a current sensing resistor. A timing module can be provided inside the controller 00. When a power startup instruction is obtained, the controller 00 starts timing. After a preset voltage regulation time, such as 1S, the controller 00 detects the voltage across the current sensing resistor, thereby determining the voltage across the current sensing resistor, and calculates the alternating current value flowing through the current sensing resistor, that is, the alternating current output from the inverter circuit 30 to the load through the power output interface 40, based on the known resistance value of the current sensing resistor.

[0084] Step S322: When it is determined, according to the current detection information, that the current value of the alternating current output from the inverter circuit 30 through the power output interface 40 is greater than a preset value, control the voltage value of the alternating current output from the inverter circuit 30 through the power output interface 40 to be reduced by a preset voltage regulation value, and return to execute step S321 until the voltage value of the alternating current output from the inverter circuit 30 through the power output interface 40 is the mains voltage value.

[0085] In this embodiment, after presetting the voltage regulation value of the inverter circuit 30 through the above embodiment process and determining the current value of the alternating current output by the voltage-regulated inverter circuit 30 according to the current detection information, a comparison is made with a preset current value. The preset current value can be set by the R & D personnel based on the current value when the outdoor power supply device enters the overload protection. If it is determined at this time that after increasing the preset voltage regulation value, the current value of the alternating current output by the inverter circuit 30 is greater than the preset current value, directly control the inverter circuit 30 to further reduce the voltage value of the output alternating current by the preset voltage regulation value, that is, return to the voltage value before this voltage regulation. And return to execute step S321, that is, after another preset voltage regulation time, repeat the above process. It can be understood that if the current value after voltage regulation does not reach the preset current value, there is no need to further reduce the voltage value of the alternating current output by the inverter circuit 30, and return to execute step S321, that is, after another preset voltage regulation time, repeat the above process until the voltage value of the alternating current output by the inverter circuit 30 is AC220V.

[0086] Specifically, taking the preset starting voltage value as AC180V, the preset voltage regulation time as 1S, the preset current value as 10A, and the preset voltage regulation value as 10V as an example, after obtaining the power startup instruction, the controller 00 controls the inverter circuit 30 to output AC180V alternating current through the power output interface 40 to the load. At the same time, the controller 00 starts timing. After 1S, the controller 00 controls the inverter circuit 30 to output an alternating current voltage value of AC190V. At the same time, according to the current detection component 50, the current obtained is 8A, which is less than 10A, and the current voltage remains unchanged. After 2S, the controller 00 controls the inverter circuit 30 to output an alternating current voltage value of AC200V. At the same time, according to the current detection component 50, the current obtained is 11A, which is greater than 10A. Then the controller 00 controls the inverter circuit 30 to output an alternating current voltage value of AC190V. After 3S, the controller 00 controls the inverter circuit 30 to output an alternating current voltage value of AC200V. At the same time, according to the current detection component 50, the current obtained is 7A, which is less than 10A, and the current voltage remains unchanged. And the above process is repeated until finally the controller 00 controls the inverter circuit 30 to output an alternating current voltage value of AC220V.

[0087] It should be understood that in practical applications, although the outdoor power supply device will not immediately enter the protection state at the moment of overload (the outdoor power supply device generally has strong anti-shock ability and usually only enters the protection state when there is overload for a period of time to prevent damage to the device), it can still adjust the output power load in time as in the above embodiments. However, in fact, due to signal transmission delay or software execution delay, it may not be possible to adjust the alternating current voltage value output by the inverter circuit 30 in the first time, which may cause the outdoor power supply device to enter the protection state and stop working.

[0088] Therefore, in another embodiment, referring to Figure 5 , the outdoor power supply device further includes a current detection component 50. The current detection component 50 is connected in series on the path between the inverter circuit 30 and the power output interface 40. The output end of the current detection component 50 is electrically connected to the controller 00. Step S320 is specifically as follows:

[0089] Step S323: Every time after the preset voltage regulation time, detect the current value of the alternating current output by the inverter circuit 30 through the power output interface 40 and generate current detection information;

[0090] Step S324: According to the current detection information and the resistance value of the preset current detection component 50, determine the resistance value of the load connected to the power output interface 40, and determine the estimated future power according to the resistance value and the alternating current voltage value after increasing the preset voltage value;

[0091] Step S325: When it is determined that the predicted future power is less than the standard power, control the inverter circuit 30 to increase the voltage value of the AC voltage output through the power output interface 40 by a preset voltage regulation value, and return to execute Step S323 until the voltage value of the alternating current output by the inverter circuit 30 through the power output interface 40 is the mains voltage value.

[0092] In this embodiment, every time the preset voltage regulation time elapses, first do not adjust the voltage value of the alternating current output by the inverter circuit 30, but first detect the current value of the alternating current output by the inverter circuit 30 (the process of determining the current value refers to the content of the above embodiment). Since a current sensing resistor is adopted and the current sensing resistor is connected in series with the load, the controller 00 can directly calculate the resistance value of the load at this time, especially the incandescent lamp.

[0093] After determining the resistance value of the load at this time, the controller 00 can determine the predicted future power according to the resistance value of the load at this time and the voltage value of the alternating current after increasing the preset voltage value. It can be understood that the higher the temperature of the load, especially the incandescent lamp, the greater the resistance value. Therefore, if the predicted future power is less than the standard power, the actual output power of the inverter circuit 30 after actually increasing the voltage will not exceed the predicted future power even more. At this time, the controller will then control the voltage value of the AC voltage output by the inverter circuit 30 through the power output interface 40 to increase by the preset voltage regulation value and return to execute Step S323 until the voltage value of the alternating current output by the inverter circuit 30 through the power output interface 40 is the mains voltage value.

[0094] It can be understood that, referring to Figure 6 , Step S320 further includes:

[0095] Step S326: When it is determined that the predicted future power reaches the standard power, control the voltage value of the AC voltage output by the inverter circuit 30 through the power output interface 40 to remain unchanged, and return to execute Step S323.

[0096] Specifically, taking the standard power of 3kW, the preset starting voltage value of AC180V, the preset voltage regulation time of 1S, and the preset voltage regulation value of 10V as an example, after outputting the preset starting voltage, after 1S, detect the current, calculate the current resistance value, and calculate that the predicted future power is 2.7kW, then control the inverter circuit 30 to increase the voltage value of the output alternating current to AC190V; after 2S, detect the current, calculate the current resistance value, and calculate that the predicted future power is 3.1kW, then control the voltage output by the inverter circuit 30 to remain unchanged; after 3S, detect the current, calculate the current resistance value, and calculate that the predicted future power is 2.8kW, then control the inverter circuit 30 to increase the voltage value of the output alternating current to AC200V; and repeat the above process until finally the controller 00 controls the voltage value of the alternating current output by the inverter circuit 30 to be AC220V.

[0097] Reference Figure 7 , in an embodiment of the present invention, the outdoor power supply device further includes a current detection component 50. The current detection component 50 is connected in series on the path between the inverter circuit 30 and the power output interface 40. The output end of the current detection component 50 is electrically connected to the controller 00. Step S300 is specifically as follows:

[0098] Step S330: Start timing when a power-on instruction is obtained;

[0099] Step S340: Every time a preset voltage regulation time elapses, detect the current value of the alternating current output by the inverter circuit 30 through the power output interface 40, and generate current detection information;

[0100] Step S350: Determine the resistance value of the load connected to the power output interface 40 according to the current detection information and the preset resistance value of the current detection component 50;

[0101] In this embodiment, as can be seen from the above embodiment content, the current detection component 50 can be implemented by a current sensing resistor. A timing module can be provided inside the controller 00. When a power-on instruction is obtained, the controller 00 starts timing. After a preset voltage regulation time, such as 1S, the controller 00 will detect the voltage across the current sensing resistor, and then determine the voltage across the current sensing resistor, and calculate the alternating current flowing through the current sensing resistor, that is, the alternating current output by the inverter circuit 30 through the power output interface 40 to the load, according to the known resistance value of the current sensing resistor. Since the voltage value output by the inverter circuit 30 is a known quantity, the controller 00 can directly calculate the resistance value of the load at this time.

[0102] Step S360: Calculate the future safe voltage value according to the standard power and the resistance value;

[0103] Step S370: Control the voltage value of the alternating current output by the inverter circuit 30 through the power output interface 40 to be increased to the future safe voltage value, and return to execute step S340 until the voltage value of the alternating current output by the inverter circuit 30 through the power output interface 40 is the mains voltage value.

[0104] In this embodiment, it should be understood that for a load, especially an incandescent lamp, the longer it works, the higher its temperature, and the higher the temperature, the greater its resistance. Therefore, when the controller 00 determines the current resistance value, it can directly calculate from the standard power the maximum voltage value that the inverter circuit 30 can output through the power output interface 40 at the current resistance value, that is, the future safe voltage value. At this time, the controller 00 can control the inverter circuit 30 to directly adjust the voltage value of the alternating current output through the power output interface 40 to the future safe voltage value, and after a preset voltage regulation time interval, repeat the above steps until the voltage value of the alternating current output by the inverter circuit 30 under the control of the controller 00 through the power output interface 40 is the mains voltage value.

[0105] For example, "when the alternating current output by the inverter circuit 30 at startup is AC150V, after 1 second, the detected current is obtained and the load resistance value is calculated, and based on the calculated load resistance value and the standard power of 2500W, the future safe voltage value is determined to be 170V, then the controller 00 directly controls the inverter circuit 30 to output AC170V. After another 1 second, the above process is repeated until the controller 00 controls the inverter circuit 30 to output AC220V." Thus, compared with the scheme in the above embodiment where the voltage value of the alternating current output by the inverter circuit 30 is increased by a preset voltage regulation value every preset voltage regulation time interval, by dynamically adjusting the voltage value of the alternating current output by the inverter circuit 30 through the power output interface 40 according to the current load resistance value, the voltage value of the alternating current output by the inverter circuit 30 through the power output interface 40 to the load, especially the incandescent lamp, can reach the conventional mains voltage AC220V faster, so that the load can enter the normal working state faster, and further improve the stability and reliability of the outdoor power supply device.

[0106] Reference Figure 8 , the present invention also proposes a controller 00, and the controller 00 includes:

[0107] A memory 01;

[0108] A processor 02;

[0109] An outdoor power supply device startup control program stored on the memory 01 and executed by the processor 02. When the outdoor power supply device startup control program is executed by the processor 022, it realizes the outdoor power supply device startup control method as described in any one of the above.

[0110] It should be noted that since the controller 00 of the present invention is based on the above outdoor power supply device startup control method, therefore, the embodiments of the controller 00 of the present invention include all the technical solutions of all the embodiments of the above outdoor power supply device startup control method, and the achieved technical effects are also exactly the same, which will not be elaborated here.

[0111] Reference Figure 8 , the present invention also provides an outdoor power supply device, which includes:

[0112] An input component 10, a battery 20, an inverter circuit 30, a power output interface 40, a temperature detection component 60, a current detection component 50, and the controller 00 as described above;

[0113] Wherein, the controller 00 is electrically connected to the output ends of the input component 10, the inverter circuit 30, the temperature detection component 60, and the current detection component 50 respectively; the input end of the inverter circuit 30 is electrically connected to the battery 20, the output end of the inverter circuit 30 is electrically connected to the power output interface 40, and the current detection component 50 is connected in series on the path between the inverter circuit 30 and the power output interface 40.

[0114] In this embodiment, the input component 10 can be implemented by a key array, a touch screen, etc., the temperature detection component 60 can be implemented by an infrared sensor or a thermistor, and the current detection component 50 can be implemented by a current sensing resistor; the controller 00 can be implemented by an MCU, a DSP (Digital Signal Process, digital signal processing chip), an FPGA (Field Programmable Gate Array, programmable logic gate array chip), etc.

[0115] In addition, the outdoor power supply device further includes:

[0116] A voltage detection component 70, the detection end of the voltage detection component 70 is electrically connected to the output end of the inverter circuit 30, and the output end of the voltage detection component 70 is electrically connected to the controller 00;

[0117] The voltage detection component 70 is used to detect the voltage value of the alternating current output by the inverter circuit 30.

[0118] In this embodiment, the voltage detection component 70 can be implemented by a resistor voltage division circuit, the output end of the resistor voltage division circuit is electrically connected to the processor 02 of the controller 00, and the controller 00 can calculate the voltage value of the alternating current actually output by the inverter circuit 30 according to the known resistor ratio in the resistor voltage division circuit and the voltage value of the voltage detection signal, and correspondingly control the inverter circuit 30 to ensure that the voltage value of the alternating current actually output by the inverter circuit 30 is the voltage value of the alternating current that the current controller 00 needs the inverter to output, thereby improving the stability and reliability of the operation of the outdoor power supply device.

[0119] It should be noted that since the outdoor power supply device of the present invention is based on the above-mentioned controller 00 and the outdoor power supply device startup control method, the embodiments of the outdoor power supply device of the present invention include all the technical solutions of all the embodiments of the above-mentioned controller 00 and the outdoor power supply device startup control method, and the achieved technical effects are also exactly the same, so they will not be elaborated here.

[0120] The above are only the optional embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the inventive concept of the present invention, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A starting control method for an outdoor power supply device, which is applied to the outdoor power supply device, and is characterized in that, The outdoor power supply device includes an input component, a battery, an inverter circuit, a controller, and a power output interface. The controller is electrically connected to the input component and the inverter circuit respectively. The input end of the inverter circuit is electrically connected to the battery, and the output end of the inverter circuit is electrically connected to the power output interface. The power output interface is used to connect a load. The outdoor power supply device further includes a current detection component, which is connected in series on the path between the inverter circuit and the power output interface. The output end of the current detection component is electrically connected to the controller; The method for controlling the startup of the outdoor power supply device includes: Step S100: Obtain a power startup instruction; Step S200: When obtaining the power startup instruction, control the inverter circuit to start working to invert the DC voltage output by the battery and output an alternating current with a preset startup voltage value through the power output interface; Step S300: Gradually increase the voltage value of the alternating current output by the inverter circuit through the power output interface until the voltage value of the alternating current output by the inverter circuit through the power output interface is the mains voltage value; Among them, the specific content of step S300 is: Step S310: Start timing when obtaining the power startup instruction; Step S320: Every time a preset voltage regulation time elapses, control the voltage value of the alternating voltage output by the inverter circuit through the power output interface to increase by a preset voltage regulation value until the voltage value of the alternating current output by the inverter circuit through the power output interface is the mains voltage value; The specific content of step S320 is: Step S323: Every time a preset voltage regulation time elapses, detect the current value of the alternating current output by the inverter circuit through the power output interface and generate current detection information; Step S324: According to the current detection information and the resistance value of the preset current detection component, determine the resistance value of the load connected to the power output interface, and determine the estimated future power according to the resistance value and the voltage value of the alternating current after increasing the preset voltage value; Step S325: When it is determined that the estimated future power is less than the standard power, control the voltage value of the alternating voltage output by the inverter circuit through the power output interface to increase by a preset voltage regulation value, and return to execute step S323 until the voltage value of the alternating current output by the inverter circuit through the power output interface is the mains voltage value; The outdoor power supply device further includes a temperature detection component, which is electrically connected to the controller. Before executing step 200, the method for controlling the startup of the outdoor power supply device further includes: Step S400: Obtain the ambient temperature; Step S500: According to the ambient temperature and the preset ambient temperature - preset startup voltage value preset table, select the corresponding preset startup voltage value.

2. The method for starting and controlling an outdoor power supply device according to claim 1, wherein, Step S320 further includes: Step S326: When it is determined that the estimated future power reaches the standard power, control the voltage value of the alternating voltage output by the inverter circuit through the power output interface to remain unchanged, and return to execute step S323.

3. A controller, characterized in that, The controller includes: A memory; A processor; and An outdoor power supply device startup control program stored on the memory and executed by the processor, which, when executed by the processor, implements the outdoor power supply device startup control method according to any one of claims 1-2.

4. An outdoor power supply device, characterized in that, The outdoor power supply device includes: An input component, a battery, an inverter circuit, a power output interface, a temperature detection component, a current detection component, and a controller according to claim 3; Wherein, the controller is electrically connected to the output ends of the input component, the inverter circuit, the temperature detection component, and the current detection component respectively; the input end of the inverter circuit is electrically connected to the battery, the output end of the inverter circuit is electrically connected to the power output interface, and the current detection component is connected in series on the path between the inverter circuit and the power output interface.

5. The outdoor power supply device according to claim 4, wherein The outdoor power supply device further includes: A voltage detection component, the detection end of the voltage detection component is electrically connected to the output end of the inverter circuit, and the output end of the voltage detection component is electrically connected to the controller; The voltage detection component is used to detect the voltage value of the alternating current output by the inverter circuit and output a voltage detection signal.

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