A switching power supply intelligent control system and method

Abstract

This invention belongs to the field of switching power supply technology and discloses an intelligent control system and method for switching power supplies. The system includes a cloud data center and several structurally identical intelligent control units for switching power supplies. The method includes the following steps: constructing a switching power supply information database based on the cloud data center; generating target switching power supply intelligent control data according to target load device information; generating switching power supply intelligent control commands according to the target switching power supply intelligent control data and supplying power to the target load device; collecting and analyzing target load power supply data; adjusting the switching power supply intelligent control commands; and restoring the switching power supply intelligent control commands from the previous state. This invention solves the problems of low control efficiency, poor adaptability, low practicality, simple control methods, and simple structure in existing technologies.

Description

Technical Field

[0001] The present invention belongs to the technical field of switching power supplies, and in particular relates to a switching power supply intelligent control system and method. Background Art

[0002] A switching power supply is a highly efficient power conversion device that controls the conversion and transmission of electrical energy by rapidly switching electronic components, thereby achieving voltage and current regulation. Compared with traditional linear power supplies, switching power supplies have the advantages of high efficiency, small size, light weight, and low heat generation. The working principle of a switching power supply is to control the conversion of electrical energy through one or more electronic switches (such as transistors, thyristors, etc.). It is mainly composed of input filters, switching circuits, pulse width modulation (PWM) controllers, output filters, feedback circuits, and protection circuits.

[0003] In the prior art, the switching power supply often controls the load device in a one-to-one manner, that is, each load device has a matching switching power supply device and a main control device. Although this control method can ensure that each load device can work under independent control, thereby achieving precise control and protection of the load device, its independent control mode leads to low control efficiency for multiple switching power supplies; then, the switching power supply has poor adaptability to different load devices and cannot meet the power supply requirements of the same switching power supply for a variety of different specifications and models of load devices, and has low practicality; and the control method and structure of the existing switching power supply are simple, and it is impossible to adaptively adjust the power supply according to the situation of the load device; finally, the existing switching power supply cannot meet the unified power supply conversion of large-scale and large numbers of load devices. Summary of the invention

[0004] In order to solve the problems of low control efficiency, poor adaptability, low practicality, simple control method and simple structure in the prior art, the present invention aims to provide a switching power supply intelligent control system and method.

[0005] The technical solution adopted by the present invention is:

[0006] A switching power supply intelligent control system includes a cloud data center and a plurality of switching power supply intelligent control units with the same structure, wherein the plurality of switching power supply intelligent control units are electrically connected to a plurality of load devices in a one-to-one correspondence, and the cloud data center is communicatively connected to the plurality of switching power supply intelligent control units and the plurality of load devices respectively.

[0007] Further, the switching power supply intelligent control unit includes a main control device, a mains input control device, a power output control device, a load power supply data acquisition device and a plurality of switching power supply devices, the input end of the main control device is electrically connected to the output end of the load power supply data acquisition device, the output end of the main control device is electrically connected to the control end of the mains input control device, the control end of the power output control device and the control end of the plurality of switching power supply devices, and the communication end of the main control device is communicatively connected to the cloud data center;

[0008] The input ends of the plurality of switching power supply devices are electrically connected to the output ends of the mains input control device, and the output ends of the plurality of switching power supply devices are electrically connected to the input end of the power output control device;

[0009] The input end of the mains input control device is electrically connected to the mains line, and the output end of the power output control device is electrically connected to the load device;

[0010] The load power supply data acquisition device is connected in series between the output end of the power output control device and the load device.

[0011] Furthermore, the cloud data center includes a switching power supply information entry module, a load device information collection module, a target switching power supply intelligent control data generation module and a control scheme transmission module which are connected in sequence. The load device information collection module is respectively connected to the communication terminals of several load devices, and the control scheme transmission module is respectively connected to the communication terminals of the main control devices of several switching power supply intelligent control units.

[0012] Further, the mains input control device includes a first relay driver and a plurality of first relays, the input end of the first relay driver is electrically connected to the output end of the main control device, and the output end of the first relay driver is electrically connected to the control side of the plurality of first relays respectively, and the switch sides of the plurality of first relays are connected in series one by one between the mains line and the input end of the plurality of switch power supply devices;

[0013] The power output control device includes a second relay driver and a plurality of second relays, the input end of the second relay driver is electrically connected to the output end of the main control device, and the output end of the second relay driver is electrically connected to the control side of the plurality of second relays respectively, and the switch sides of the plurality of second relays are connected in series one by one between the output end of the plurality of switching power supply devices and the input end of the load device.

[0014] Furthermore, the load power supply data acquisition device includes a current collector and a voltage collector, the input end of the current collector is connected in series between the output end of the power output control device and the input end of the load device, and the output end of the current collector is electrically connected to the input end of the main control device of the switching power supply intelligent control unit;

[0015] The input end of the voltage collector is connected in parallel between the positive pole and the negative pole of the power supply of the load device, and the output end of the voltage collector is electrically connected to the input end of the main control device of the switching power supply intelligent control unit.

[0016] A switching power supply intelligent control method is applied to a switching power supply intelligent control system, and the method comprises the following steps:

[0017] Based on the cloud data center, unit information data of a number of switch power intelligent control units and switch power information data of a number of switch power devices are collected, and a switch power information database is constructed according to the unit information data and the switch power information data;

[0018] Collect target load device information of a target load device connected to a target switch power supply intelligent control unit, generate target switch power supply intelligent control data according to the target load device information and a switch power supply information database, and send the target switch power supply intelligent control data to the target switch power supply intelligent control unit;

[0019] Based on the target switching power supply intelligent control unit, according to the target switching power supply intelligent control data, a switching power supply intelligent control instruction is generated, and according to the switching power supply intelligent control instruction, the target switching power supply intelligent control unit is controlled to supply power to the target load device;

[0020] Collecting target load power supply data for powering the target load device, if the target load power supply data exceeds the target load power supply data threshold, stopping the target switch power supply intelligent control unit from powering the target load device, and sending an alarm signal to the cloud data center;

[0021] According to the target load power supply data, the switch power supply intelligent control instruction is adjusted to obtain the adjusted switch power supply intelligent control instruction, and according to the adjusted switch power supply intelligent control instruction, the target switch power supply intelligent control unit is controlled to supply power to the target load device;

[0022] The adjusted target load power supply data for the target load equipment is collected. If the adjusted target load power supply data exceeds the target load power supply data threshold, the target switching power supply intelligent control unit is controlled to restore the switching power supply intelligent control instruction of the previous state and send an alarm signal to the cloud data center.

[0023] Further, the unit information data includes a main control device model and a control unit number of the switching power supply intelligent control unit, and switching power supply device numbers of all switching power supply devices included in the switching power supply intelligent control unit;

[0024] The switching power supply information data includes the switching power supply device isolation type, the switching power supply device topology type, the switching power supply device parameters and the control instruction format;

[0025] The target load device information includes the required power supply power, rated power supply voltage and rated power supply current of the target load device;

[0026] The target switching power supply intelligent control data includes target load equipment information, matching switching power supply device number and matching switching power supply information data, and the data format of the target switching power supply intelligent control data can be recognized by the target main control device corresponding to the target main control device model.

[0027] Further, collecting target load device information of a target load device connected to a target switch power supply intelligent control unit, generating target switch power supply intelligent control data according to the target load device information and a switch power supply information database, and sending the target switch power supply intelligent control data to the target switch power supply intelligent control unit, including the following steps:

[0028] Collect target load device information of a target load device connected to a target switching power supply intelligent control unit;

[0029] According to the target control unit number of the target switching power intelligent control unit, searching in the plurality of unit information data of the switching power information database, obtaining the plurality of target switching power device numbers corresponding to the target control unit number in the target unit information data, and extracting the corresponding plurality of target switching power information data according to the plurality of target switching power device numbers;

[0030] According to the target load device information, searching among several target power supply information data, comparing the target power supply device parameters of each target power supply information data, and obtaining the corresponding matching power supply information data and its matching power supply device number;

[0031] According to the target load equipment information, the matching switch power supply information data and the target main control device model in the target unit information data, the corresponding target switch power supply intelligent control data is generated, and the target switch power supply intelligent control data is sent to the corresponding target switch power supply intelligent control unit.

[0032] Further, based on the target switch power intelligent control unit, according to the target switch power intelligent control data, a corresponding switch power intelligent control instruction is generated, and according to the switch power intelligent control instruction, the target switch power intelligent control unit is controlled to supply power to the target load device, including the following steps:

[0033] Based on the target switch power supply intelligent control unit, receiving the target switch power supply intelligent control data sent by the cloud data center;

[0034] Parse the target switching power supply intelligent control data to obtain the parsed target load device information, the parsed matching switching power supply device number and the parsed matching switching power supply information data;

[0035] According to the matched switching power supply device number after parsing, a mains input control instruction for controlling a target mains input control device in a target switching power supply intelligent control unit and a power output control instruction for controlling a target power output control device are generated;

[0036] According to the mains input control instruction and the power output control instruction, the target mains input control device and the target power output control device are turned on, and the target switching power supply device corresponding to the switching power supply device number after parsing is used to connect the mains line and the target load device respectively;

[0037] Generate a switch power control instruction of a target switch power device according to the parsed matching switch power information data;

[0038] According to the switch power control instruction, the corresponding target switch power device is controlled to supply power to the target load device.

[0039] Further, collecting target load power supply data for powering the target load device, if the target load power supply data exceeds the target load power supply data threshold, stopping the target switch power supply intelligent control unit from powering the target load device, and sending an alarm signal to the cloud data center, including the following steps:

[0040] Using the load power supply data acquisition device of the target switching power supply intelligent control unit to collect the target load power supply data for powering the target load device;

[0041] The target load power supply data is sent to the main control device, and based on the main control device and the analyzed target load device information, a target load power supply data threshold is generated;

[0042] If the target load power supply data exceeds the target load power supply data threshold, the target switching power supply intelligent control unit will be stopped from supplying power to the target load device. An alarm signal will be generated based on the parsed matching switching power supply device number and the parsed target load device information, and the alarm signal will be sent to the cloud data center.

[0043] The beneficial effects of the present invention are:

[0044] The present invention provides a switching power supply intelligent control system and method. The cloud data center remotely processes and manages the power supply work of the switching power supply intelligent control unit for load devices of different models and specifications, thereby improving the control efficiency of multiple switching power supplies and meeting the unified power supply conversion of large-scale and large numbers of load devices. The system can automatically select a suitable switching power supply device for power supply according to the load device information of the load device, and intelligently generate corresponding switching power supply intelligent control data according to the load device information and the switching power supply information, thereby avoiding the separate and manual debugging of relevant parameters of the switching power supply. The system has strong adaptability to different load devices, and the matching multiple switching power supply devices can meet the power supply requirements of multiple load devices of different specifications and models, and has strong practicality. The switching power supply intelligent control unit can adjust the switching power supply intelligent control instructions according to the load power supply data collected in real time, form a feedback adjustment mechanism, and adaptively adjust the power supply power according to the situation of the load device. The structure of the switching power supply intelligent control unit adopts a mains input control device to control the mains input, a power output control device to control the load power supply, and a main control device to control the power supply efficiency of the switching power supply device, thereby improving the reliability and safety of the switching power supply for the load device.

[0045] Other beneficial effects of the present invention will be further described in the specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a structural block diagram of the intelligent control system of the switching power supply in the present invention.

[0047] Figure 2 It is a circuit schematic diagram of the isolated flyback buck switching power supply in the present invention.

[0048] Figure 3 It is a circuit schematic diagram of the isolated full-bridge step-down switching power supply in the present invention.

[0049] Figure 4 It is a circuit schematic diagram of the current collector in the present invention.

[0050] Figure 5 It is a circuit schematic diagram of the voltage collector in the present invention.

[0051] Figure 6 It is a flow chart of the intelligent control method of the switching power supply in the present invention. DETAILED DESCRIPTION

[0052] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.

[0053] Embodiment 1:

[0054] like Figure 1As shown, this embodiment provides a switching power supply intelligent control system, including a cloud data center and a plurality of switching power supply intelligent control units with the same structure, wherein the plurality of switching power supply intelligent control units are electrically connected to a plurality of load devices in a one-to-one correspondence, and the cloud data center is respectively communicatively connected to the plurality of switching power supply intelligent control units and the plurality of load devices;

[0055] Used to collect unit information data of all switching power intelligent control units and switching power information data sets corresponding to all switching power devices, and build a corresponding switching power information database based on a number of unit information data and a number of switching power information data sets; collect target load device information of a target load device connected to a target switching power intelligent control unit, generate corresponding target switching power intelligent control data based on the target load device information and the switching power information database, and send the target switching power intelligent control data to the target switching power intelligent control unit;

[0056] The switch power supply intelligent control unit is used to generate a corresponding switch power supply intelligent control instruction according to the target switch power supply intelligent control data, and control the target switch power supply intelligent control unit to supply power to the target load device according to the switch power supply intelligent control instruction; collect the target load power supply data for supplying power to the target load device, if the target load power supply data exceeds the load power supply data threshold, control the target switch power supply intelligent control unit to stop supplying power to the target load device, and send an alarm signal to the cloud data center; adjust the switch power supply intelligent control instruction according to the target load power supply data to obtain the adjusted switch power supply intelligent control instruction, and control the target switch power supply intelligent control unit to supply power to the target load device according to the adjusted switch power supply intelligent control instruction; collect the adjusted target load power supply data for supplying power to the target load device, if the adjusted target load power supply data exceeds the load power supply data threshold, control the target switch power supply intelligent control unit to restore the switch power supply intelligent control instruction of the previous state, and send an alarm signal to the cloud data center.

[0057] Preferably, the switching power supply intelligent control unit comprises a main control device, a mains input control device, a power output control device, a load power supply data acquisition device and a plurality of switching power supply devices, the input end of the main control device is electrically connected to the output end of the load power supply data acquisition device, the output end of the main control device is electrically connected to the control end of the mains input control device, the control end of the power output control device and the control end of the plurality of switching power supply devices, and the communication end of the main control device is communicatively connected to the cloud data center;

[0058] The input ends of the plurality of switching power supply devices are electrically connected to the output ends of the mains input control device, and the output ends of the plurality of switching power supply devices are electrically connected to the input end of the power output control device;

[0059] The input end of the mains input control device is electrically connected to the mains line, and the output end of the power output control device is electrically connected to the load device;

[0060] The load power supply data acquisition device is connected in series between the output end of the power output control device and the load device;

[0061] The main control device is used to generate a switch power supply intelligent control instruction according to the target switch power supply intelligent control data, and send the switch power supply intelligent control instruction to the mains input control device, the power output control device and the switch power supply device; analyze the target load power supply data sent by the load power supply data acquisition device, and if the target load power supply data exceeds the target load power supply data threshold, stop sending the switch power supply intelligent control instruction to the switch power supply device, stop supplying power to the target load device, and send an alarm signal to the cloud data center; adjust the switch power supply intelligent control instruction according to the target load power supply data to obtain an adjusted switch power supply intelligent control instruction; analyze the adjusted target load power supply data sent by the load power supply data acquisition device, and if the adjusted target load power supply data exceeds the target load power supply data threshold, restore the switch power supply intelligent control instruction of the previous state, and send an alarm signal to the cloud data center;

[0062] A mains input control device, used to control the switching power supply device to connect to the mains line according to the switching power supply intelligent control instruction;

[0063] A power output control device, used to control the switching power supply device to connect to the load device according to the switching power supply intelligent control instruction;

[0064] A load power supply data acquisition device, used to acquire target load power supply data for powering the target load device; acquire adjusted target load power supply data for powering the target load device; and send the target load power supply data and the adjusted target load power supply data to the main control device;

[0065] The switching power supply device, according to the switching power supply control instruction, rectifies and converts the AC power input from the mains line to supply power to the target load device. In this embodiment, two switching power supply devices are used, wherein Figure 2 As shown, the switching power supply device 1 is an isolated flyback buck switching power supply, including a MOS tube (Q1) as a control port of the PWM control mode, such as Figure 3 As shown, the switching power supply device 2 is an isolated full-bridge buck switching power supply, including four MOS tubes (Q2-Q5) as control ports of the PWM control mode, and the output power of the switching power supply is adjusted by controlling the duty cycle of the MOS tubes;

[0066] Preferably, the cloud data center includes a switching power supply information entry module, a load device information collection module, a target switching power supply intelligent control data generation module and a control scheme transmission module connected in sequence, the load device information collection module is respectively connected to the communication end of a plurality of load devices, and the control scheme transmission module is respectively connected to the communication end of the main control device of a plurality of switching power supply intelligent control units;

[0067] The switching power supply information input module is used to collect unit information data of a plurality of switching power supply intelligent control units and switching power supply information data of a plurality of switching power supply devices, and to construct a switching power supply information database according to the plurality of unit information data and the plurality of switching power supply information data;

[0068] A load device information acquisition module, used to acquire target load device information of a target load device connected to a target switching power supply intelligent control unit;

[0069] A target switching power supply intelligent control data generating module is used to generate target switching power supply intelligent control data according to the target load device information sent by the target load device and the switching power supply information database stored locally;

[0070] The control scheme transmission module is used to send the target switching power supply intelligent control data to the target switching power supply intelligent control unit.

[0071] Preferably, the mains input control device comprises a first relay driver and a plurality of first relays, the input end of the first relay driver is electrically connected to the output end of the main control device, and the output end of the first relay driver is electrically connected to the control side of the plurality of first relays respectively, and the switch sides of the plurality of first relays are connected in series one by one between the mains line and the input end of the plurality of switch power supply devices;

[0072] The power output control device includes a second relay driver and a plurality of second relays, the input end of the second relay driver is electrically connected to the output end of the main control device, and the output end of the second relay driver is electrically connected to the control sides of the plurality of second relays respectively, and the switch sides of the plurality of second relays are connected in series one by one between the output ends of the plurality of switch power supply devices and the input ends of the load devices;

[0073] The first relay driver is used to generate a corresponding relay high level signal according to the mains input control instruction, driving the corresponding first relay of the switching power supply device to turn on; the other power supply channels are relay low level signals, and the corresponding first relay is turned off;

[0074] The first relay is in the conducting state to connect the mains power line to the switching power supply device, and in the off state to disconnect the mains power line from the switching power supply device;

[0075] The second relay driver is used to generate a corresponding relay high level signal according to the power output control instruction, and drive the corresponding second relay of the switching power supply device to turn on; the other power supply channels are relay low level signals, and the corresponding second relay is turned off;

[0076] The second relay, in the on state, enables the target switching power supply device to be connected to the target load device, cooperates with the first relay to power the load device, and in the off state, maintains the switching power supply device to be disconnected from the load device;

[0077] In this embodiment, KM1 and 2 are first relays for controlling the AC power input to the switching power supply devices 1 and 2, and KM3 and 4 are second relays for the switching power supply devices 1 and 2 for supplying power to the load device RL.

[0078] Preferably, the load power supply data acquisition device includes a current collector and a voltage collector, such as Figure 4 As shown, the input end of the current collector (current transformer CT1) is connected in series between the output end of the power output control device and the input end of the load device, and the output end of the current collector (node ​​Vo2) is electrically connected to the input end of the main control device of the switching power supply intelligent control unit;

[0079] like Figure 5 As shown, the input end (node ​​V4) of the voltage collector is connected in parallel between the positive pole and the negative pole of the power supply of the load device, and the output end (node ​​Vo1) of the voltage collector is electrically connected to the input end of the main control device of the switching power supply intelligent control unit;

[0080] The current collector is used to collect the input working current data of the load device, and the voltage collector is used to collect the input working voltage data of the load device, and is used to monitor the power supplied to the load device by the switching power supply intelligent control unit.

[0081] Embodiment 2:

[0082] like Figure 6 As shown, this embodiment provides a switching power supply intelligent control method, which is applied to a switching power supply intelligent control system. The method includes the following steps:

[0083] S1: Based on the cloud data center, collect unit information data of a number of switching power supply intelligent control units and switching power supply information data of a number of switching power supply devices, and build a switching power supply information database according to the number of unit information data and the number of switching power supply information data;

[0084] The unit information data includes the main control device model and control unit number of the switching power supply intelligent control unit, and the switching power supply device numbers of all switching power supply devices included in the switching power supply intelligent control unit;

[0085] The switching power supply information data includes the switching power supply device isolation type, the switching power supply device topology type, the switching power supply device parameters and the control instruction format;

[0086] The isolation types of switching power supply devices include isolated switching power supply devices and non-isolated switching power supply devices;

[0087] The switching power supply device topology types include step-down switching power supply device type, step-up switching power supply device type, step-up / step-down switching power supply device type, flyback switching power supply device type, forward switching power supply device type, full-bridge switching power supply device type, half-bridge switching power supply type and push-pull switching power supply type;

[0088] The parameters of the switching power supply device include the rated input power, rated output power, rated output current, initial duty cycle and number of switches;

[0089] The control instruction format includes the number of control instruction code bits that is consistent with the number of switch tubes, and the control instruction channel corresponding to each control instruction code bit;

[0090] S2: collecting target load device information of a target load device connected to a target switching power supply intelligent control unit, generating target switching power supply intelligent control data according to the target load device information and a switching power supply information database, and sending the target switching power supply intelligent control data to the target switching power supply intelligent control unit, including the following steps:

[0091] S2-1: collecting target load device information of a target load device connected to a target switching power supply intelligent control unit; the target load device information includes a required power supply power, a rated power supply voltage, and a rated power supply current of the target load device;

[0092] S2-2: searching, according to the target control unit number of the target switching power intelligent control unit, a plurality of unit information data in the switching power information database to obtain a plurality of target switching power device numbers corresponding to the target control unit number in the target unit information data, and extracting a plurality of corresponding target switching power information data according to the plurality of target switching power device numbers;

[0093] S2-3: Power supply P according to the target load equipment information e,P , Rated supply voltage U e,P And the rated supply current I e,P , search in several target power supply information data, compare the rated input power P in the target power supply device parameters of each target power supply information data e,in , Rated output power P e,out And the rated output current I e,out, get the corresponding matching switch power supply information data and its matching switch power supply device number, the constraint formula is:

[0094]

[0095] Where η r is the loss parameter of the switching power supply device; P e,out,min , P e,out,max is the rated output power P e,out The minimum and maximum values ​​of I e,out,min ,I e,out,max is the minimum and maximum value of the rated output current; P e,in,min , P e,in,max are the minimum and maximum values ​​of the rated input power;

[0096] S2-4: Generate corresponding target switch power supply intelligent control data according to the target load device information, the matching switch power supply information data and the target main control device model in the target unit information data, and send the target switch power supply intelligent control data to the corresponding target switch power supply intelligent control unit;

[0097] The target switch power supply intelligent control data includes target load device information, matching switch power supply device number and matching switch power supply information data, and the data format of the target switch power supply intelligent control data can be recognized by the target main control device corresponding to the target main control device model;

[0098] S3: Based on the target switching power intelligent control unit, according to the target switching power intelligent control data, generating a switching power intelligent control instruction, and according to the switching power intelligent control instruction, controlling the target switching power intelligent control unit to supply power to the target load device, including the following steps:

[0099] S3-1: Based on the target switch power supply intelligent control unit, receiving the target switch power supply intelligent control data sent by the cloud data center;

[0100] S3-2: parsing the target switching power supply intelligent control data to obtain the parsed target load device information, the parsed matching switching power supply device number and the parsed matching switching power supply information data;

[0101] S3-3: Generate a mains input control instruction for controlling a target mains input control device in a target switching power supply intelligent control unit and a power output control instruction for controlling a target power output control device according to the switching power supply device number matched after parsing; for example, if the switching power supply device number matched after parsing is switching power supply device 1, the mains input control instruction and the power output control instruction are [1,0], and control relays KM1 and KM3 are turned on, and KM2 and KM4 are turned off;

[0102] S3-4: according to the mains input control instruction and the power output control instruction, the target mains input control device and the target power output control device are turned on, and the target switching power supply device corresponding to the switching power supply device number matched after parsing is used to connect the mains line and the target load device respectively;

[0103] S3-5: Generate a switch power control instruction of a target switch power device according to the parsed matching switch power information data; for example, in this embodiment, including a MOS tube (Q1) of a switch power device 1 and four MOS tubes (Q2-Q5) of a switch power device 2, the switch power device numbered after parsing is switch power device 1, and the corresponding switch power control instruction is [1, 0, 0, 0, 0], wherein the duty cycle of the MOS tube (Q1) is the initial duty cycle of the target switch power device parameter;

[0104] S3-6: According to the switch power control instruction, control the corresponding target switch power device to supply power to the target load device;

[0105] S4: collecting target load power supply data for powering the target load device. If the target load power supply data exceeds the target load power supply data threshold, the target switch power supply intelligent control unit is stopped from powering the target load device, and an alarm signal is sent to the cloud data center, including the following steps:

[0106] S4-1: Use the load power supply data acquisition device of the target switching power supply intelligent control unit to collect the target load power supply data for the target load device; the target load power supply data includes the real power supply power, real power supply voltage and real power supply current of the switching power supply device 1 for the target load device;

[0107] S4-2: Send the target load power supply data to the main control device, and generate the target load power supply data threshold based on the main control device and the analyzed target load device information; the target load power supply data threshold includes the required power supply power, rated power supply voltage and rated power supply current of the target load device;

[0108] S4-3: If the target load power supply data exceeds the target load power supply data threshold, the target switch power intelligent control unit is stopped from supplying power to the target load device, and an alarm signal is generated according to the parsed matching switch power device number and the parsed target load device information, and the alarm signal is sent to the cloud data center;

[0109] S5: According to the target load power supply data, the switch power supply intelligent control instruction is adjusted to obtain the adjusted switch power supply intelligent control instruction, and according to the adjusted switch power supply intelligent control instruction, the target switch power supply intelligent control unit is controlled to supply power to the target load device; the switch power supply intelligent control instruction is adjusted mainly to change the duty cycle of the MOS tube (Q1) to adjust the actual power supply power, and the formula is:

[0110]

[0111] Where ΔD is the duty cycle change; P e,p Power supply for demand; P c,out is the actual power supply; P e,out,max is the rated output power P e,out The maximum value; D0 is the initial duty cycle; D * To adjust the duty cycle, it is used to adjust the MOS tube of the switching power supply device to adjust the actual power supply;

[0112] S6: Collect the adjusted target load power supply data for the target load device. If the adjusted target load power supply data exceeds the target load power supply data threshold, control the target switch power supply intelligent control unit to restore the switch power supply intelligent control instruction of the previous state, and send an alarm signal to the cloud data center.

[0113] The present invention provides a switching power supply intelligent control system and method. The cloud data center remotely processes and manages the power supply work of the switching power supply intelligent control unit for load devices of different models and specifications, thereby improving the control efficiency of multiple switching power supplies and meeting the unified power supply conversion of large-scale and large numbers of load devices. The system can automatically select a suitable switching power supply device for power supply according to the load device information of the load device, and intelligently generate corresponding switching power supply intelligent control data according to the load device information and the switching power supply information, thereby avoiding the separate and manual debugging of relevant parameters of the switching power supply. The system has strong adaptability to different load devices, and the matching multiple switching power supply devices can meet the power supply requirements of multiple load devices of different specifications and models, and has strong practicality. The switching power supply intelligent control unit can adjust the switching power supply intelligent control instructions according to the load power supply data collected in real time, form a feedback adjustment mechanism, and adaptively adjust the power supply power according to the situation of the load device. The structure of the switching power supply intelligent control unit adopts a mains input control device to control the mains input, a power output control device to control the load power supply, and a main control device to control the power supply efficiency of the switching power supply device, thereby improving the reliability and safety of the switching power supply for the load device.

[0114] The present invention is not limited to the above optional implementations, and anyone can derive other various forms of products under the enlightenment of the present invention. The above specific implementations should not be understood as limiting the scope of protection of the present invention. The scope of protection of the present invention should be based on the definition in the claims, and the description can be used to interpret the claims.

Claims

1. A switching power supply intelligent control method, characterized in that: The method comprises the following steps: Based on the cloud data center, unit information data of a number of switch power intelligent control units and switch power information data of a number of switch power devices are collected, and a switch power information database is constructed according to the unit information data and the switch power information data; Collecting target load device information of a target load device connected to a target switching power supply intelligent control unit, generating target switching power supply intelligent control data according to the target load device information and a switching power supply information database, and sending the target switching power supply intelligent control data to the target switching power supply intelligent control unit, including the following steps: Collect target load device information of a target load device connected to a target switching power supply intelligent control unit; According to the target control unit number of the target switching power intelligent control unit, searching in the plurality of unit information data of the switching power information database, obtaining the plurality of target switching power device numbers corresponding to the target control unit number in the target unit information data, and extracting the corresponding plurality of target switching power information data according to the plurality of target switching power device numbers; According to the target load device information, searching among several target power supply information data, comparing the target power supply device parameters of each target power supply information data, and obtaining the corresponding matching power supply information data and its matching power supply device number; Generate corresponding target switch power supply intelligent control data according to target load device information, matching switch power supply information data and target main control device model in target unit information data, and send the target switch power supply intelligent control data to the corresponding target switch power supply intelligent control unit; Based on the target switching power intelligent control unit, according to the target switching power intelligent control data, a switching power intelligent control instruction is generated, and according to the switching power intelligent control instruction, the target switching power intelligent control unit is controlled to supply power to the target load device, including the following steps: Based on the target switch power supply intelligent control unit, receiving the target switch power supply intelligent control data sent by the cloud data center; Parse the target switching power supply intelligent control data to obtain the parsed target load device information, the parsed matching switching power supply device number and the parsed matching switching power supply information data; According to the matched switching power supply device number after parsing, a mains input control instruction for controlling a target mains input control device in a target switching power supply intelligent control unit and a power output control instruction for controlling a target power output control device are generated; According to the mains input control instruction and the power output control instruction, the target mains input control device and the target power output control device are turned on, and the target switching power supply device corresponding to the switching power supply device number after parsing is used to connect the mains line and the target load device respectively; Generate a switch power control instruction of a target switch power device according to the parsed matching switch power information data; According to the switch power supply control instruction, control the corresponding target switch power supply device to supply power to the target load device; Collecting target load power supply data for powering the target load device, if the target load power supply data exceeds the target load power supply data threshold, stopping the target switch power supply intelligent control unit from powering the target load device, and sending an alarm signal to the cloud data center; According to the target load power supply data, the switch power supply intelligent control instruction is adjusted to obtain the adjusted switch power supply intelligent control instruction, and according to the adjusted switch power supply intelligent control instruction, the target switch power supply intelligent control unit is controlled to supply power to the target load device; Collecting adjusted target load power supply data for powering the target load device, if the adjusted target load power supply data exceeds the target load power supply data threshold, controlling the target switch power supply intelligent control unit to restore the switch power supply intelligent control instruction of the previous state, and sending an alarm signal to the cloud data center, including the following steps: Using the load power supply data acquisition device of the target switching power supply intelligent control unit to collect the target load power supply data for powering the target load device; The target load power supply data is sent to the main control device, and based on the main control device and the analyzed target load device information, a target load power supply data threshold is generated; If the target load power supply data exceeds the target load power supply data threshold, the target switching power supply intelligent control unit will be stopped from supplying power to the target load device. An alarm signal will be generated based on the parsed matching switching power supply device number and the parsed target load device information, and the alarm signal will be sent to the cloud data center.

2. A switching power supply intelligent control method according to claim 1, characterized in that: The unit information data includes the main control device model and control unit number of the switching power supply intelligent control unit, and the switching power supply device numbers of all switching power supply devices included in the switching power supply intelligent control unit; The switching power supply information data includes the switching power supply device isolation type, the switching power supply device topology type, the switching power supply device parameters and the control instruction format; The target load device information includes the required power supply power, rated power supply voltage and rated power supply current of the target load device; The target switch power supply intelligent control data includes target load equipment information, matching switch power supply device number and matching switch power supply information data, and the data format of the target switch power supply intelligent control data can be recognized by the target main control device corresponding to the target main control device model.

3. A switching power supply intelligent control system, characterized in that: Applying a switching power supply intelligent control method as claimed in any one of claims 1 to 2 to the switching power supply intelligent control system; The switching power supply intelligent control system includes a cloud data center and a plurality of switching power supply intelligent control units with the same structure, wherein the plurality of switching power supply intelligent control units are electrically connected to a plurality of load devices in a one-to-one correspondence, and the cloud data center is respectively communicatively connected to the plurality of switching power supply intelligent control units and the plurality of load devices; The switching power supply intelligent control unit comprises a main control device, a mains input control device, a power output control device, a load power supply data acquisition device and a plurality of switching power supply devices, the input end of the main control device is electrically connected to the output end of the load power supply data acquisition device, the output end of the main control device is electrically connected to the control end of the mains input control device, the control end of the power output control device and the control end of the plurality of switching power supply devices, and the communication end of the main control device is communicatively connected to the cloud data center; The input ends of several of the switching power supply devices are electrically connected to the output ends of the mains input control device, and the output ends of several of the switching power supply devices are electrically connected to the input end of the power output control device; The input end of the mains input control device is electrically connected to the mains line, and the output end of the power output control device is electrically connected to the load device; The load power supply data acquisition device is connected in series between the output end of the power output control device and the load device; The cloud data center includes a switching power supply information entry module, a load device information collection module, a target switching power supply intelligent control data generation module and a control scheme transmission module which are connected in sequence. The load device information collection module is respectively connected to the communication terminals of several load devices, and the control scheme transmission module is respectively connected to the communication terminals of the main control devices of several switching power supply intelligent control units.

4. The intelligent control system for a switching power supply according to claim 3, characterized in that: The AC input control device comprises a first relay driver and a plurality of first relays, the input end of the first relay driver is electrically connected to the output end of the main control device, and the output end of the first relay driver is electrically connected to the control side of the plurality of first relays respectively, and the switch sides of the plurality of first relays are connected in series one by one between the AC line and the input end of the plurality of switch power supply devices; The power output control device includes a second relay driver and a plurality of second relays, the input end of the second relay driver is electrically connected to the output end of the main control device, and the output end of the second relay driver is electrically connected to the control sides of the plurality of second relays respectively, and the switch sides of the plurality of second relays are connected in series one by one between the output ends of the plurality of switching power supply devices and the input ends of the load devices.

5. The intelligent control system for a switching power supply according to claim 3, characterized in that: The load power supply data acquisition device comprises a current collector and a voltage collector, the input end of the current collector is connected in series between the output end of the power output control device and the input end of the load device, and the output end of the current collector is electrically connected to the input end of the main control device of the switching power supply intelligent control unit; The input end of the voltage collector is connected in parallel between the positive pole and the negative pole of the power supply of the load device, and the output end of the voltage collector is electrically connected to the input end of the main control device of the switching power supply intelligent control unit.

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