Outdoor power supply device startup control method, controller and outdoor power supply device

Abstract

The present invention discloses a startup control method, a controller, and an outdoor power supply device. The startup control method is applied to an outdoor power supply device comprising an input component, a battery, an inverter circuit, a controller, and a power output interface. The startup control method comprises: obtaining a power startup instruction; upon obtaining the power startup instruction, controlling the inverter circuit to begin operation, inverting the DC voltage output by the battery into AC power with a preset startup voltage value via the power output interface; and gradually increasing the voltage of the AC power output by the inverter circuit via the power output interface until the voltage of the AC power output by the inverter circuit via the power output interface reaches the mains voltage value. This invention improves the operational stability and reliability of the outdoor power supply device.

Description

[0001] This application is a divisional application of 202111675105.3. The application date of the parent application is December 31, 2021, the application number is 202111675105.3 and the name of the invention is outdoor power supply device starting 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 in particular to a startup control method, a controller and an outdoor power supply device. Background Art

[0003] With the development of science and technology, people's daily lives are increasingly dependent on the supply of electricity. When users are outdoors without mains electricity or when the mains power is temporarily cut off, they need to use outdoor power supply devices as emergency power supplies to drive some electrical loads. However, some electrical loads, especially incandescent lamps, have a low filament temperature and low impedance when they are just lit. At this time, the current flowing through the incandescent lamp will be very large. If the outdoor power supply device supplies AC220V to the incandescent lamp at the beginning, 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 outdoor power supply device. Summary of the Invention

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

[0005] To achieve the above objectives, the present invention provides a startup control method for an outdoor power supply device, which 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 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 to a load.

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

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

[0008] Step S200: When the power startup instruction is obtained, the inverter circuit is controlled to start operating, so as to invert the DC voltage output by the battery and then output AC power of a preset startup voltage value through the power output interface;

[0009] Step S300: gradually increase the voltage of the AC power output by the inverter circuit through the power output interface until the voltage of the AC power output by the inverter circuit through the power output interface reaches the mains voltage.

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

[0011] Step S300: obtaining the ambient temperature;

[0012] Step S400: selecting a corresponding preset starting voltage value according to the ambient temperature and a preset table of ambient temperature-preset starting voltage values.

[0013] Optionally, the step S300 is specifically as follows:

[0014] Step S310: start timing when the power-on instruction is obtained;

[0015] Step S320: After each preset voltage regulation time, control the voltage value of the AC 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 AC power output by the inverter circuit through the power output interface reaches 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 in a path between the inverter circuit and the power output interface, and an output end of the current detection component is electrically connected to the controller. Step S320 is specifically as follows:

[0017] Step S321: every time a preset voltage regulation time passes, controlling the voltage value of the AC voltage output by the inverter circuit through the power output interface to increase by a preset voltage regulation value, detecting the current value of the AC power output by the inverter circuit through the power output interface, and generating current detection information;

[0018] Step S322: When it is determined, based on 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, the voltage value of the alternating current voltage output by the inverter circuit through the power output interface is controlled to be further reduced by the preset voltage regulation value, and the process returns to step S321 until the voltage value of the alternating current output by the inverter circuit through the power output interface reaches the mains voltage value.

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

[0020] Step S323: every time a preset voltage regulation time passes, detecting the current value of the alternating current output by the inverter circuit through the power output interface, and generating current detection information;

[0021] Step S324: determining the resistance of the load connected to the power output interface based on the current detection information and the preset resistance of the current detection component, and determining the estimated future power based on the resistance and the voltage of the AC power increased by a preset voltage value;

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

[0023] Optionally, step S320 further includes:

[0024] Step S326: When it is determined that the estimated future power reaches the standard power, the voltage value of the AC voltage output by the inverter circuit through the power output interface is controlled to remain unchanged, and the process returns to step S323.

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

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

[0027] Step S340: Detecting the current value of the AC power output by the inverter circuit through the power output interface every time a preset voltage regulation time passes, and generating current detection information;

[0028] Step S350: determining the resistance of the load connected to the power output interface according to the current detection information and the preset resistance of the current detection component;

[0029] Step S360: Calculate the future safe voltage value based on 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 AC power output by the inverter circuit through the power output interface reaches the mains voltage value.

[0031] The present invention further provides a controller, comprising:

[0032] Memory;

[0033] processor; and

[0034] An outdoor power supply device startup control program stored in the memory and executed by the processor implements any one of the above-mentioned outdoor power supply device startup control methods when executed by the processor.

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

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

[0037] The controller is electrically connected to the input component, the inverter circuit, the temperature detection component, and the output end of 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 in 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, wherein a detection end of the voltage detection component is electrically connected to an output end of the inverter circuit, and an 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, a power startup instruction is first obtained, and then when the power startup instruction is obtained, the inverter circuit is controlled to start working, so as to invert the DC voltage output by the battery and output AC power with a preset startup voltage value through the power output interface. Finally, the voltage value of the AC power output by the inverter circuit through the power output interface is gradually increased until the voltage value of the AC power output by the inverter circuit through the power output interface is the mains voltage value. In this way, in actual application, 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 a protection state due to the large current generated at the beginning, and the output AC voltage value will be gradually increased until the output AC power is the mains voltage value to drive the load, such as the incandescent lamp, to work normally. The present invention improves the stability and reliability of the operation of the outdoor power supply device. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

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

[0044] Figure 2 A flowchart of the method steps of another embodiment of the startup control method of an outdoor power supply device of the present invention;

[0045] Figure 3 A flowchart of the method steps of another embodiment of the startup control method of an outdoor power supply device of the present invention;

[0046] Figure 4 A flowchart of the method steps of another embodiment of the startup control method of an outdoor power supply device of the present invention;

[0047] Figure 5 A flowchart of the method steps of another embodiment of the startup control method of an outdoor power supply device of the present invention;

[0048] Figure 6 A flowchart of the method steps of another embodiment of the startup control method of an outdoor power supply device of the present invention;

[0049] Figure 7 A flowchart of the method steps of another embodiment of the startup control method of an outdoor power supply device of the present invention;

[0050] Figure 8FIG. 1 is a circuit diagram of an outdoor power supply device according to an embodiment of the present invention.

[0051] Description of Figure Numbers:

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

[0053] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0054] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

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

[0056] It should be noted that in this article, step codes such as S100 and S200 are used for the purpose of expressing the corresponding content more clearly and concisely, and do not constitute a substantial limitation on the order. When implementing the step, those skilled in the art may execute S200 first and then S100, etc., but these should all be within the scope of protection of this application.

[0057] It should be understood that with the development of science and technology, people's daily lives are increasingly dependent on the supply of electricity. When users are outdoors without mains electricity, or when the mains power is temporarily cut off, they need to use outdoor power supply devices as emergency power supplies to drive some electrical loads. However, some electrical loads, especially incandescent lamps, have a low filament temperature and low impedance when they are just lit. At this time, the current flowing through the incandescent lamp will be very large. If the outdoor power supply device supplies AC220V to the incandescent lamp when it is first started, 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 outdoor power supply device.

[0058] To this end, the present invention proposes a startup control method for an outdoor power supply device, which is applied to the 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] refer to Figure 8 In this embodiment, the input component 10 can be implemented by a touch screen or a key array, and the user can output a power start instruction by triggering the input component 10;

[0060] In this embodiment, the controller 00 can be implemented using an MCU, a DSP (Digital Signal Process), an FPGA (Field Programmable Gate Array), or the like. After the controller 00 determines the preset starting voltage value, it can output a signal corresponding to the voltage-PWM duty cycle to control the inverter circuit 30 to invert the battery 20 voltage and output AC power of the preset starting voltage value to the load via the power output interface 40.

[0061] It is understood that, in order to ensure the reliability and stability of the voltage actually output by the inverter circuit 30, the outdoor power supply device may also be provided with a voltage detection component 70 to detect the actual voltage value of the AC power output by the inverter circuit 30 and feed it back to the controller 00. The controller 00 will accordingly adjust the duty cycle of the output PWM signal so that the voltage value of the AC power actually output by the inverter circuit 30 is consistent with the voltage value that the controller 00 requires the inverter circuit 30 to output. The voltage detection component 70 can be implemented using a resistor voltage divider circuit.

[0062] refer to Figures 1-8 In one embodiment of the present invention, a startup control method for an outdoor power supply device includes:

[0063] Step S100: obtaining a power startup instruction;

[0064] Step S200: When a power startup instruction is obtained, the inverter circuit 30 is controlled to start working, so as to invert the DC voltage output by the battery 20 and then output AC power of a preset startup voltage value through the power output interface 40;

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

[0066] Step S300 , gradually increase the voltage of the AC power outputted by the inverter circuit 30 through the power output interface 40 until the voltage of the AC power outputted by the inverter circuit 30 through the power output interface 40 reaches the mains voltage.

[0067] In this embodiment, after the controller 00 controls the inverter circuit 30 to output AC power with a voltage value of a preset starting voltage value through the power output interface 40, it will gradually control the inverter circuit 30 to increase the voltage value of the output AC power. Optionally, it can be calculated according to the time when the AC power output starts. For example, the preset starting voltage value is AC180V. In the subsequent 3S, the inverter circuit 30 is evenly controlled to increase the voltage value of the output AC power until the voltage value of the AC power output by the inverter circuit 30 through the power output interface 40 reaches the mains voltage value. In this way, in actual application, when the user connects the load, especially the 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 the output AC voltage value will gradually increase until the output AC power reaches the mains voltage value to drive the load, such as the incandescent lamp, to work normally. The present invention improves the stability and reliability of the operation of the outdoor power supply device.

[0068] In the technical solution of the present invention, a power startup instruction is first obtained, and then when the power startup instruction is obtained, the inverter circuit 30 is controlled to start working, so as to invert the DC voltage output by the battery 20 and output AC power with a preset startup voltage value through the power output interface 40. Finally, the voltage value of the AC power output by the inverter circuit 30 through the power output interface 40 is gradually increased until the voltage value of the AC power output by the inverter circuit 30 through the power output interface 40 is the mains voltage value. In this way, in actual application, 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 a protection state due to the large current generated at the beginning, and the output AC voltage value will be gradually increased until the output AC power is the mains voltage value to drive the load normally, such as the incandescent lamp. The present invention improves the stability and reliability of the operation of the outdoor power supply device.

[0069] It should be understood that most users use outdoor power supply devices in outdoor environments, especially in wild environments. Therefore, the ambient temperature is very unstable, which may be between -30 degrees Celsius and 30 degrees Celsius. Since the resistance of the load will be affected by the ambient temperature, a single preset starting voltage may not be suitable for every environment.

[0070] For this purpose, refer to Figure 2 In one embodiment of the present invention, the outdoor power supply device further includes a temperature detection component 60, which is electrically connected to the controller 00. Before executing step 200, the outdoor power supply device startup control method further includes:

[0071] Step S300: obtaining 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 provide the detection result to the controller 00 so that the controller 00 can determine the current ambient temperature.

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

[0074] In this embodiment, a preset table of ambient temperature and preset starting voltage values ​​can be obtained through multiple tests by R&D personnel and preset in the controller 00. Upon receiving a power startup command, the controller 00 determines the current ambient temperature and selects a preset starting voltage value based on this value. For example, "when the ambient temperature is -30°C, select the preset starting voltage value of AC180V; when the ambient temperature is +30°C, select the preset starting voltage value of AC160V." The controller 00 then controls the inverter circuit 30 to output AC power at the preset starting voltage value in accordance with the above embodiment. In this way, in actual applications, the preset starting voltage value can be dynamically adjusted based on the ambient temperature, thereby ensuring that the outdoor power supply device will not enter the overload protection state upon startup under any circumstances, effectively ensuring the reliability and stability of the outdoor power supply device.

[0075] refer to Figure 3 In one embodiment of the present invention, step S300 is specifically as follows:

[0076] Step S310: start timing when a power-on instruction is obtained;

[0077] In this embodiment, a timing module may be provided within the controller 00 and electrically connected to the processor 02 within the controller 00, so that the controller 00 starts timing itself when receiving a power-on command from an input device. Optionally, the controller 00 may also be electrically connected to an external timer and, upon receiving a power-on command from the input device, control the timer to start timing and receive timing results from the timer.

[0078] Step S320: After each preset voltage regulation time, control the AC voltage outputted by the inverter circuit 30 through the power output interface 40 to increase by the preset voltage regulation value until the AC voltage outputted 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 the developer according to their needs, for example, 1 second. The preset voltage regulation value can also be preset by the inventor, for example, 10V. After the controller 00 starts timing, i.e., after receiving the power startup instruction and controlling the inverter circuit 30 to begin outputting AC power at the preset startup voltage value through the power output interface 40, it controls the inverter circuit 30 to increase the voltage of the output AC power at intervals of the preset voltage regulation time, by the preset voltage regulation value, until it reaches the mains voltage value. For example, "starting with AC180V output, outputting 190V after 1 second, outputting AC200V after 2 seconds, outputting AC210V after 3 seconds, and outputting AC220V after 4 seconds." In this way, when the outdoor power supply device is first started, the current output to the load, especially the incandescent lamp, is not too high, preventing it from entering a protection state. The device can then return to the normal mains voltage output over a period of time to properly operate the load.

[0080] It should be understood that in actual applications, the resistance 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 of the incandescent lamp may not have risen to a relatively large value. This may cause the AC power output of the outdoor power supply device to exceed the standard power for a period of time and then enter the overload protection state again.

[0081] To this end, in this embodiment, optionally, reference Figure 4 The outdoor power supply device further includes a current detection component 50, which is connected in series to 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:

[0082] Step S321: Every time a preset voltage regulation time passes, the voltage value of the AC voltage output by the inverter circuit 30 through the power output interface 40 is increased by a preset voltage regulation value, and the current value of the AC power output by the inverter circuit 30 through the power output interface 40 is detected, and current detection information is generated;

[0083] In this embodiment, the current detection component 50 can be implemented using a current sensing resistor. A timing module can be provided within the controller 00. When a power startup command is received, the controller 00 will start timing. After a preset voltage adjustment time, for example, 1 second, the controller 00 will detect the voltage across the current sensing resistor, thereby determining the voltage across the current sensing resistor and calculating the AC current flowing through the current sensing resistor based on the known resistance value of the current sensing resistor, that is, the AC current output by the inverter circuit 30 to the load via the power output interface 40.

[0084] Step S322: When it is determined based on the current detection information that the current value of the AC power output by the inverter circuit 30 through the power output interface 40 is greater than the preset value, the voltage value of the AC voltage output by the inverter circuit 30 through the power output interface 40 is controlled to be further reduced by the preset voltage regulation value, and the process returns to step S321 until the voltage value of the AC power output by the inverter circuit 30 through the power output interface 40 reaches the mains voltage value.

[0085] In this embodiment, after the inverter circuit 30 is set to a preset regulated voltage value through the above-described process, the current value of the AC power output by the inverter circuit 30 after the regulated voltage value is determined based on the current detection information and then compared with the preset current value. The preset current value can be set by the developer based on the current value at which the outdoor power supply device enters overload protection. If, after the preset regulated voltage value is increased, the current value of the AC power output by the inverter circuit 30 exceeds the preset current value, the inverter circuit 30 is directly controlled to reduce the voltage of the output AC power by the preset regulated voltage value, i.e., restore it to the voltage value before the current regulation. The process then returns to step S321, i.e., after a preset regulation time, the above process is repeated. It is understood that if the current value after the regulated voltage value does not reach the preset current value, the voltage value of the AC power output by the inverter circuit 30 is no longer reduced, and the process returns to step S321, i.e., after a preset regulation time, the above process is repeated until the voltage value of the AC power output by the inverter circuit 30 reaches 220V AC.

[0086] Specifically, taking the preset starting voltage value of AC180V, the preset voltage regulation time of 1S, the preset current value of 10A, and the preset voltage regulation value of 10V as an example, after obtaining the power start instruction, the controller 00 controls the inverter circuit 30 to output AC180V alternating current through the power output interface 40 to the load, and the controller 00 starts timing. After 1S, the controller 00 controls the inverter circuit 30 to output the alternating current voltage value of AC190V. At the same time, according to the current detection component 50, the current current is 8A, which is less than 10A, and the current voltage does not change; after 2S, the controller 00 controls the inverter circuit 30 to output the alternating current value of AC190V. The voltage value of the AC power output by the inverter circuit 30 is AC200V. At the same time, the current obtained from the current detection component 50 is 11A, which is greater than 10A. Then the controller 00 controls the voltage value of the AC power output by the inverter circuit 30 to be AC190V. After 3S, the controller 00 controls the voltage value of the AC power output by the inverter circuit 30 to be AC200V. At the same time, the current current obtained from the current detection component 50 is 7A, which is less than 10A, and the current voltage does not change. The above process is repeated until the controller 00 controls the voltage value of the AC power output by the inverter circuit 30 to be AC220V.

[0087] It should be understood that, in actual applications, although the outdoor power supply device does not immediately enter a protection state upon an overload (outdoor power supply devices generally have strong shock resistance and often only enter protection after a period of overload to prevent damage to the device), the output power load can still be adjusted promptly as in the above embodiment. However, in practice, signal transmission delays or software execution delays may prevent the voltage value of the AC power output by the inverter circuit 30 from being adjusted immediately, which may cause the outdoor power supply device to enter a protection state again and stop operating.

[0088] To this end, in another embodiment, reference is made to Figure 5 The outdoor power supply device further includes a current detection component 50, which is connected in series to 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 a preset voltage regulation time passes, detecting the current value of the AC power output by the inverter circuit 30 through the power output interface 40 and generating current detection information;

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

[0091] Step S325: When it is determined that the estimated future power is less than the standard power, the voltage value of the AC voltage output by the inverter circuit 30 through the power output interface 40 is controlled to increase by the preset voltage regulation value, and the process returns to step S323 until the voltage value of the AC power output by the inverter circuit 30 through the power output interface 40 reaches the mains voltage value.

[0092] In this embodiment, each time the preset voltage regulation time passes, the voltage value of the AC power output by the inverter circuit 30 is not adjusted first. Instead, the current value of the AC power output by the inverter circuit 30 is detected first (the process of determining the current value is referred to the content of the above embodiment). Since a current sensing resistor is used and the current sensing resistor and the load are connected in series, the controller 00 can directly calculate the resistance value of the load at this time, especially the incandescent lamp.

[0093] After determining the load resistance at this time, the controller 00 can determine the estimated future power based on the load resistance at this time and the voltage value of the AC power after the preset voltage value is increased. It is understandable that the higher the temperature of the load, especially the incandescent lamp, the greater the resistance. Therefore, if the estimated future power is less than the standard power, then the actual output power of the inverter circuit 30 after the voltage is actually increased will not exceed the estimated future power. At this time, the AC voltage output by the inverter circuit 30 through the power output interface 40 will be controlled to increase the preset voltage value and return to step S323 until the voltage value of the AC power output by the inverter circuit 30 through the power output interface 40 reaches the mains voltage value.

[0094] Understandably, the reference Figure 6 , step S320 further includes:

[0095] Step S326: When it is determined that the estimated future power reaches the standard power, the voltage value of the AC voltage output by the inverter circuit 30 through the power output interface 40 is controlled to remain unchanged, and the process returns to 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, 1S later, the current is detected, the current resistance is calculated, and the estimated future power is 2.7kW, then the voltage value of the AC power output by the inverter circuit 30 is controlled to be increased to AC190V; 2S later, the current is detected, the current resistance is calculated, and the estimated future power is calculated to be 3.1kW, then the voltage output by the inverter circuit 30 is controlled to remain unchanged; 3S later, the current is detected, the current resistance is calculated, and the estimated future power is calculated to be 2.8kW, then the voltage value of the AC power output by the inverter circuit 30 is controlled to be increased to AC200V; and the above process is repeated until the controller 00 finally controls the voltage value of the AC power output by the inverter circuit 30 to be AC220V.

[0097] refer to Figure 7 In one 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 to 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 the power-on instruction is obtained;

[0099] Step S340: Detect the current value of the AC power output by the inverter circuit 30 through the power output interface 40 every time a preset voltage regulation time passes, and generate current detection information;

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

[0101] In this embodiment, as can be seen from the above embodiments, the current detection component 50 can be implemented using a current sensing resistor. A timing module can be provided within the controller 00. When a power startup command is received, the controller 00 will start timing, and after a preset voltage adjustment time, for example, 1 second, the controller 00 will detect the voltage across the current sensing resistor, thereby determining the voltage across the current sensing resistor and calculating the AC current flowing through the current sensing resistor based on the known resistance of the current sensing resistor, that is, the AC current output by the inverter circuit 30 to the load via the power output interface 40. Since the voltage output by the inverter circuit 30 is a known quantity, the controller 00 can now directly calculate the resistance of the load.

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

[0103] Step S370, control the voltage value of the AC voltage output by the inverter circuit 30 through the power output interface 40 to increase to a future safe voltage value, and return to execute step S340 until the voltage value of the AC power output by the inverter circuit 30 through the power output interface 40 reaches the mains voltage value.

[0104] In this embodiment, it should be understood that the longer the load, especially an incandescent lamp, operates, the higher its temperature becomes. As the temperature increases, its resistance increases. Therefore, when the controller 00 determines the current resistance, it can directly calculate the maximum voltage value that the inverter circuit 30 can output through the power output interface 40 under the current resistance value based on the standard power, i.e., the future safe voltage value. At this point, the controller 00 can control the inverter circuit 30 to directly adjust the voltage value of the AC power output through the power output interface 40 to the future safe voltage value, and repeat the above steps after a preset voltage adjustment time interval until the voltage value of the AC power output by the inverter circuit 30 through the power output interface 40 under the control of the controller 00 reaches the mains voltage value.

[0105] For example, "When the inverter circuit 30 is turned on, the AC power output by the inverter circuit 30 is AC150V. After 1S, the detected current is obtained and the load resistance is calculated. The future safe voltage value is determined to be 170V based on the calculated load resistance and the standard power of 2500W. Then the controller 00 directly controls the inverter circuit 30 to output AC170V. After another 1S, the above process is repeated again until the controller 00 controls the inverter circuit 30 to output AC220V." In this way, compared with the scheme in which the AC voltage value output by the inverter circuit 30 is increased by a preset voltage regulation value every time a preset voltage regulation time is set in the above embodiment, by dynamically adjusting the voltage value of the AC power output by the inverter circuit 30 to the load through the power output interface 40 according to the current load resistance, the inverter circuit 30 can output the AC power to the load through the power output interface 40 more quickly, especially the AC voltage value of the incandescent lamp reaches the conventional AC220V mains voltage, so that the load can enter the normal working state more quickly, further improving the stability and reliability of the outdoor power supply device.

[0106] refer to Figure 8 The present invention further proposes a controller 00, which includes:

[0107] Memory 01;

[0108] Processor 02;

[0109] The outdoor power supply device startup control program stored in the memory 01 and executed by the processor 02 implements any of the above-mentioned outdoor power supply device startup control methods when executed by the processor 022 .

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

[0111] refer to Figure 8 The present invention further provides an outdoor power supply device, the outdoor power supply device comprising:

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

[0113] Among them, 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 in 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 unit also includes:

[0116] A voltage detection component 70, wherein a detection end of the voltage detection component 70 is electrically connected to an output end of the inverter circuit 30, and an 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 AC power output by the inverter circuit 30 .

[0118] In this embodiment, the voltage detection component 70 can be implemented using a resistor divider circuit, and the output end of the resistor divider circuit is electrically connected to the processor 02 of the controller 00. The controller 00 can calculate the voltage value of the AC power actually output by the inverter circuit 30 based on the known resistance ratio in the resistor divider circuit and the voltage value of the voltage detection signal, and control the inverter circuit 30 accordingly to ensure that the voltage value of the AC power actually output by the inverter circuit 30 is the voltage value of the AC power that the current controller 00 requires the inverter to output, thereby improving the stability and reliability of the outdoor power supply device.

[0119] It is worth noting 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 technical solutions of all embodiments of the above-mentioned controller 00 and the outdoor power supply device startup control method, and the technical effects achieved are also exactly the same, which will not be repeated here.

[0120] The above are only optional embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A startup control method for an outdoor power supply device, applied to an outdoor power supply device, 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. 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 also includes a current detection component. The current detection component is connected in series in a 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 outdoor power supply device startup control method includes: Step S100: obtaining a power startup instruction; Step S200: When the power startup instruction is obtained, the inverter circuit is controlled to start operating, so as to invert the DC voltage output by the battery and then output AC power of a preset startup voltage value through the power output interface; Step S300: gradually increasing the voltage of the AC power output by the inverter circuit through the power output interface until the voltage of the AC power output by the inverter circuit through the power output interface reaches the mains voltage. The step S300 is specifically as follows: Step S310: start timing when the power-on instruction is obtained; Step S320: Controlling the voltage value of the AC voltage output by the inverter circuit through the power output interface to increase by a preset voltage regulation value every time a preset voltage regulation time passes, until the voltage value of the AC power output by the inverter circuit through the power output interface reaches the mains voltage value; The step S320 is specifically as follows: Step S321: every time a preset voltage regulation time passes, controlling the voltage value of the AC voltage output by the inverter circuit through the power output interface to increase by a preset voltage regulation value, detecting the current value of the AC power output by the inverter circuit through the power output interface, and generating current detection information; Step S322: When it is determined, based on 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 current value, controlling the voltage value of the alternating current voltage output by the inverter circuit through the power output interface to further decrease by the preset voltage regulation value, and returning to step S321 until the voltage value of the alternating current output by the inverter circuit through the power output interface reaches the mains voltage value; Wherein, the preset starting voltage value is lower than the mains voltage value.

2. The startup control method of the outdoor power supply device according to claim 1, wherein: The outdoor power supply device further includes a temperature detection component, which is electrically connected to the controller. Before executing step 200, the outdoor power supply device startup control method further includes: Step S400: obtaining the ambient temperature; Step S500: selecting a corresponding preset starting voltage value according to the ambient temperature and a preset table of ambient temperature-preset starting voltage values.

3. A controller, characterized in that: The controller includes: Memory; processor; and An outdoor power supply device startup control program stored in the memory and executed by the processor, 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 comprises: An input component, a battery, an inverter circuit, a power output interface, a temperature detection component, a current detection component, and a controller as claimed in claim 3; The controller is electrically connected to the input component, the inverter circuit, the temperature detection component, and the output end of 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 in 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, wherein a detection end of the voltage detection component is electrically connected to an output end of the inverter circuit, and an 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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