Multi-IGBT parallel drive protection method, device, equipment, storage medium and program product

Abstract

The invention relates to the technical field of semiconductors, in particular to a multi-IGBT parallel drive protection method, device and equipment, a storage medium and a program product. The method comprises the following steps: receiving state information of a plurality of IGBTs connected in parallel, and generating an initial IGBT driving signal and a state feedback signal according to the state information; parallel calculation is carried out on the initial IGBT driving signal to obtain a high-speed synchronous IGBT driving signal, and the IGBT driving signal is used for driving a plurality of IGBTs which are connected in parallel; and constructing interlocking logic between the state information and the IGBT driving signal, and carrying out driving protection on the IGBT according to the interlocking logic. By the adoption of the scheme, state feedback and driving protection can be achieved when multiple IGBTs are connected in parallel.

Description

Technical Field

[0001] The present disclosure relates to the field of semiconductor technology, and in particular to a multi-IGBT parallel drive protection method, device, equipment, storage medium and program product. Background Art

[0002] Insulate-Gate Bipolar Transistor (IGBT) combines the advantages of Giant Transistor (GTR) and Power MOSFET, has good characteristics, and is widely used. However, in the prior art, when driving multiple IGBTs connected in parallel, the state feedback and driving protection issues when multiple IGBTs are connected in parallel are not considered, resulting in frequent burnout of IGBT devices due to overvoltage. Summary of the invention

[0003] The present disclosure aims to solve one of the technical problems in the related art at least to some extent.

[0004] To this end, a first objective of the present disclosure is to propose a multi-IGBT parallel driving protection method to achieve state feedback and driving protection when multiple IGBTs are connected in parallel.

[0005] A second objective of the present disclosure is to provide a multi-IGBT parallel drive protection device.

[0006] A third objective of the present disclosure is to provide an electronic device.

[0007] A fourth objective of the present disclosure is to provide a computer-readable storage medium.

[0008] A fifth object of the present disclosure is to provide a computer program product.

[0009] To achieve the above-mentioned purpose, the first embodiment of the present disclosure proposes a multi-IGBT parallel drive protection method, comprising:

[0010] Receiving state information of a plurality of IGBTs connected in parallel, and generating an initial IGBT drive signal and a state feedback signal according to the state information;

[0011] Performing parallel calculation on the initial IGBT drive signal to obtain a high-speed synchronous IGBT drive signal, wherein the IGBT drive signal is used to drive the plurality of IGBTs connected in parallel;

[0012] An interlocking logic is constructed between the state information and the IGBT driving signal, and the IGBT is driven and protected according to the interlocking logic.

[0013] Optionally, generating a state feedback signal according to the state information includes:

[0014] Extracting features from the state information to obtain IGBT operation feature values;

[0015] A state feedback signal is generated according to the IGBT operation characteristic value.

[0016] Optionally, the driving protection of the IGBT according to the interlocking logic includes:

[0017] When the status information indicates that the multiple IGBTs connected in parallel are in an abnormal state, the IGBT drive signal is blocked, and an IGBT real-time control signal is generated to drive the multiple IGBTs connected in parallel.

[0018] Optionally, the generating of an IGBT real-time control signal to drive the plurality of IGBTs connected in parallel includes:

[0019] generating a fault signal corresponding to the status information;

[0020] An IGBT real-time control signal is generated according to the fault signal, and the plurality of IGBTs connected in parallel are driven according to the IGBT real-time control signal.

[0021] Optionally, generating an IGBT real-time control signal according to the fault signal includes:

[0022] In the case where the fault signal is a primary fault signal, generating a first IGBT real-time control signal for reducing the switching frequency of the IGBT drive signal;

[0023] In the case where the fault signal is a secondary fault signal, generating a second IGBT real-time control signal for reducing the working current corresponding to the IGBT;

[0024] In the case where the fault signal is a third-level fault signal, a third IGBT real-time control signal for forcibly controlling the IGBT to be in an on state is generated.

[0025] To achieve the above-mentioned purpose, a second embodiment of the present disclosure provides a multi-IGBT parallel drive protection device, comprising:

[0026] A calculation unit, configured to receive status information of a plurality of IGBTs connected in parallel, and generate an initial IGBT drive signal and a status feedback signal according to the status information;

[0027] A high-speed drive signal generating unit, configured to perform parallel calculation on the initial IGBT drive signal to obtain a high-speed synchronous IGBT drive signal, wherein the IGBT drive signal is used to drive the plurality of IGBTs connected in parallel;

[0028] The fault protection integrated logic unit is used to construct an interlocking logic between the state information and the IGBT drive signal, and to drive and protect the IGBT according to the interlocking logic.

[0029] To achieve the above-mentioned purpose, a third aspect of the present disclosure provides an electronic device, including: a processor, and a memory communicatively connected to the processor;

[0030] Memory stores computer-executable instructions;

[0031] The processor executes the computer-executable instructions stored in the memory to implement the method shown in any one of the first aspects above.

[0032] To achieve the above-mentioned objectives, an embodiment of the fourth aspect of the present disclosure proposes a computer-readable storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are executed by a processor, they are used to implement the method shown in any one of the above-mentioned first aspects.

[0033] To achieve the above-mentioned objective, a fifth aspect of the present disclosure provides a computer program product, including a computer program, which, when executed by a processor, implements the method shown in any one of the above-mentioned first aspects.

[0034] In summary, the method, device, equipment, storage medium and program product provided by the present disclosure receive the state information of multiple IGBTs connected in parallel, and generate an initial IGBT drive signal and a state feedback signal according to the state information; perform parallel calculation on the initial IGBT drive signal to obtain a high-speed synchronous IGBT drive signal, wherein the IGBT drive signal is used to drive multiple IGBTs connected in parallel; construct an interlocking logic between the state information and the IGBT drive signal, and drive and protect the IGBT according to the interlocking logic. Therefore, state feedback and drive protection when multiple IGBTs are connected in parallel can be realized.

[0035] Additional aspects and advantages of the present disclosure will be given in part in the following description and in part will be obvious from the following description or learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The above and / or additional aspects and advantages of the present disclosure will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0037] Figure 1A schematic flow chart of a multi-IGBT parallel driving protection method provided by an embodiment of the present disclosure;

[0038] Figure 2 A schematic diagram of the structure of a current conversion system provided by an embodiment of the present disclosure;

[0039] Figure 3 A schematic diagram of the structure of a multi-IGBT parallel drive protection device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0040] Embodiments of the present disclosure are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, and should not be construed as limiting the present disclosure.

[0041] The present disclosure is described in detail below with reference to specific embodiments.

[0042] In the first embodiment, if Figure 1 As shown, Figure 1 This is a flow chart of a multi-IGBT parallel drive protection method provided by an embodiment of the present disclosure. The method can be implemented by a computer program and can be run on a device that performs multi-IGBT parallel drive protection. The computer program can be integrated into an application or run as an independent tool application.

[0043] The multi-IGBT parallel drive protection device may be an electronic device with a multi-IGBT parallel drive protection function.

[0044] Among them, the multi-IGBT parallel driving protection method can be executed by an electronic device.

[0045] For example, the multi-IGBT parallel drive protection method includes the following steps:

[0046] S101, receiving state information of a plurality of IGBTs connected in parallel, and generating an initial IGBT drive signal and a state feedback signal according to the state information;

[0047] According to some embodiments, since multiple IGBTs are connected in parallel, that is, the collectors of all IGBTs are interconnected, and the emitters of all IGBTs are connected to each other, the corresponding main circuit voltage is the positive power supply voltage corresponding to the multiple IGBTs connected in parallel, that is, if the IGBT is N-type, then the corresponding main circuit voltage is the voltage corresponding to the collector; if the IGBT is P-type, then the corresponding main circuit voltage is the voltage corresponding to the emitter.

[0048] In some embodiments, the status information includes but is not limited to voltage information, current information, temperature information, etc.

[0049] According to some embodiments, the state feedback signal includes, but is not limited to, a voltage state feedback signal, a current state feedback signal, a temperature state feedback signal, and the like.

[0050] S102, performing parallel calculation on the initial IGBT drive signal to obtain a high-speed synchronous IGBT drive signal;

[0051] According to some embodiments, the IGBT driving signal is used to drive a plurality of IGBTs connected in parallel.

[0052] It should be noted that by performing parallel calculations to generate high-speed synchronous IGBT drive signals, the consistency and synchronization of multiple IGBT parallel drive signals can be achieved when driving multiple IGBTs connected in parallel, thereby reducing the inconsistency in the conduction of IGBT devices.

[0053] S103, constructing an interlocking logic between the state information and the IGBT driving signal, and performing driving protection on the IGBT according to the interlocking logic.

[0054] According to some embodiments, when the IGBT is driven and protected according to the interlocking logic, the interlocking logic is used to control and adjust the IGBT driving signal according to the status information, thereby ensuring the safe operation of the whole machine.

[0055] In summary, the method provided in this embodiment receives the state information of multiple IGBTs connected in parallel, generates an initial IGBT drive signal and a state feedback signal according to the state information; performs parallel calculation on the initial IGBT drive signal to obtain a high-speed synchronous IGBT drive signal, wherein the IGBT drive signal is used to drive multiple IGBTs connected in parallel; constructs an interlocking logic between the state information and the IGBT drive signal, and drives and protects the IGBT according to the interlocking logic. Therefore, state feedback and drive protection can be achieved when multiple IGBTs are connected in parallel.

[0056] This embodiment also provides another multi-IGBT parallel driving protection method, which can be executed by an electronic device.

[0057] For example, the multi-IGBT parallel driving protection method may include the following steps:

[0058] S201, receiving state information of a plurality of IGBTs connected in parallel, and extracting features from the state information to obtain IGBT operation feature values;

[0059] According to some embodiments, when extracting features from state information, features such as voltage, current, and temperature may be extracted.

[0060] S202, generating a state feedback signal according to the IGBT operation characteristic value;

[0061] For example, when the extracted voltage characteristic value exceeds the voltage threshold, an overvoltage feedback signal can be generated; when the extracted current characteristic value exceeds the current threshold, an overcurrent feedback signal can be generated; when the extracted temperature characteristic value exceeds the temperature threshold, an overtemperature feedback signal can be generated.

[0062] S203, performing parallel calculation on the initial IGBT drive signal to obtain a high-speed synchronous IGBT drive signal;

[0063] S204, constructing an interlocking logic between the state information and the IGBT drive signal;

[0064] According to some embodiments, the initial drive protection model can be trained by acquiring a state information sample set and an IGBT drive signal sample set to obtain a trained drive protection model. The model parameters in the trained drive protection model include the state information and the interlocking logic between the IGBT drive signal.

[0065] S205 , when the status information indicates that the multiple IGBTs connected in parallel are in an abnormal state, the IGBT drive signal is blocked, and an IGBT real-time control signal is generated to drive the multiple IGBTs connected in parallel.

[0066] According to some embodiments, the abnormal state includes but is not limited to overvoltage, overcurrent, overtemperature and the like.

[0067] In some embodiments, when an IGBT real-time control signal is generated to drive multiple IGBTs connected in parallel, a fault signal corresponding to the status information can be generated; an IGBT real-time control signal is generated according to the fault signal, and multiple IGBTs connected in parallel are driven according to the IGBT real-time control signal.

[0068] Wherein, when the fault signal is a primary fault signal, a first IGBT real-time control signal for reducing the switching frequency of the IGBT drive signal may be generated.

[0069] It should be noted that the first-level fault signal refers to the signal used when the fault intensity is at the lowest level. In this case, it is only necessary to reduce the switching frequency of the IGBT drive signal to suppress the fault state of the IGBT while ensuring the safety of the IGBT.

[0070] Wherein, in the case where the fault signal is a secondary fault signal, a second IGBT real-time control signal for reducing the working current corresponding to the IGBT may be generated;

[0071] It should be noted that the secondary fault signal refers to the signal used when the fault intensity is at an intermediate level. In this case, simply reducing the switching frequency of the IGBT drive signal will make it difficult to suppress the fault state of the IGBT while ensuring the safety of the IGBT. It is necessary to further reduce the corresponding operating current of the IGBT to suppress the fault state of the IGBT.

[0072] Wherein, in the case where the fault signal is a third-level fault signal, a third IGBT real-time control signal for forcibly controlling the IGBT to be in an on state may be generated.

[0073] It should be noted that the third-level fault signal refers to the signal used when the fault intensity is the highest level. In this case, it is necessary to forcibly control the IGBT to be in the on state to ensure the safety of the IGBT. In addition, a shutdown command can also be issued synchronously to control the device where the IGBT is located to stop operating.

[0074] Take a scenario as an example. Figure 2 The structure diagram of a converter system provided by an embodiment of the present disclosure is shown in FIG. Figure 2 As shown, the high-power wind power converter includes multiple stages of parallel-connected IGBT devices, which are power semiconductor devices in the converter main circuit and are responsible for power conversion. Since the converter core controller (20MW high-power wind power converter controller) is far away from the IGBT device and there is a high voltage and high current environment, the drive signal needs to be transmitted using communication optical fiber. The IGBT parallel intelligent drive protection control unit is an electronic device with multi-IGBT parallel drive protection function. During operation, the converter system can receive the status information of multiple IGBTs connected in parallel input by the high-power wind power converter, and generate a status feedback signal according to the status information; it can also receive the initial IGBT drive signal input by the converter core controller, perform parallel calculation on the initial IGBT drive signal, obtain a high-speed synchronous IGBT drive signal, and send the IGBT drive signal to the IGBT drive circuit, so that the IGBT drive circuit drives the IGBT according to the IGBT drive signal; it can also construct an interlocking logic between the status information and the IGBT drive signal. When the IGBT state is abnormal, the IGBT drive signal is blocked to protect the safety of the IGBT operation. At the same time, the fault signal is sent to the converter core controller, and the converter real-time control signal is generated in collaboration with the converter main controller.

[0075] In some embodiments, the IGBT parallel intelligent drive protection control unit can also receive the power delivered by the converter core controller and convert it into power that meets the voltage level requirements of the IGBT parallel intelligent drive protection control unit, ensuring the reliable switching of the IGBT and the power supply safety of the electrical equipment on the control unit.

[0076] In some embodiments, the IGBT parallel intelligent drive protection control unit may also include a signal input and output unit, which is responsible for converting input signals and output signals into signals recognized by the IGBT parallel intelligent drive protection control unit, such as converting the optical fiber signal sent by the converter core controller into an electrical signal, decoding the signal content, and generating an input control signal executable by the IGBT parallel intelligent drive protection control unit. The state signal of the IGBT parallel intelligent drive protection control unit itself is transformed and processed, converted into a digital signal that meets the communication requirements, and then converted into an optical signal for communicating with the converter core controller and performing real-time high-speed data transmission.

[0077] In summary, the method provided in this embodiment firstly receives the state information of multiple IGBTs connected in parallel and extracts the features of the state information to obtain the IGBT operation characteristic value; generates the state feedback signal according to the IGBT operation characteristic value; therefore, the accuracy of the state feedback signal generation can be improved. Then, the high-speed synchronous IGBT drive signal is obtained by parallel calculation of the initial IGBT drive signal; the interlocking logic between the state information and the IGBT drive signal is constructed; the interlocking logic between the state information and the IGBT drive signal is constructed; when the state information indicates that the multiple IGBTs connected in parallel are in an abnormal state, the IGBT drive signal is blocked, and an IGBT real-time control signal is generated to drive the multiple IGBTs connected in parallel; therefore, the state feedback and drive protection when multiple IGBTs are connected in parallel can be realized to ensure the safe operation of the whole machine.

[0078] In order to implement the above embodiment, the present disclosure also proposes a multi-IGBT parallel drive protection device.

[0079] like Figure 3 As shown, the multi-IGBT parallel drive protection device 300 includes:

[0080] The calculation unit 301 is used to receive the state information of the plurality of IGBTs connected in parallel, and generate an initial IGBT drive signal and a state feedback signal according to the state information;

[0081] A high-speed drive signal generating unit 302, used for performing parallel calculation on the initial IGBT drive signal to obtain a high-speed synchronous IGBT drive signal, wherein the IGBT drive signal is used to drive a plurality of IGBTs connected in parallel;

[0082] The fault protection integrated logic unit 303 is used to construct the interlocking logic between the state information and the IGBT driving signal, and to drive and protect the IGBT according to the interlocking logic.

[0083] Optionally, when the calculation unit 301 is used to generate a state feedback signal according to the state information, it is specifically used to:

[0084] Extract the characteristics of the state information to obtain the IGBT operation characteristic value;

[0085] A state feedback signal is generated according to the IGBT operation characteristic value.

[0086] Optionally, when the fault protection integrated logic unit 303 is used to drive and protect the IGBT according to the interlocking logic, it is specifically used to:

[0087] When the status information indicates that the multiple IGBTs connected in parallel are in an abnormal state, the IGBT drive signal is blocked, and an IGBT real-time control signal is generated to drive the multiple IGBTs connected in parallel.

[0088] Optionally, when the fault protection integrated logic unit 303 is used to generate an IGBT real-time control signal to drive a plurality of IGBTs connected in parallel, it is specifically used to:

[0089] Generate a fault signal corresponding to the status information;

[0090] An IGBT real-time control signal is generated according to the fault signal, and a plurality of IGBTs connected in parallel are driven according to the IGBT real-time control signal.

[0091] Optionally, when the fault protection integrated logic unit 303 is used to generate an IGBT real-time control signal according to a fault signal, it is specifically used to:

[0092] In the case where the fault signal is a primary fault signal, generating a first IGBT real-time control signal for reducing the switching frequency of the IGBT drive signal;

[0093] In the case where the fault signal is a secondary fault signal, generating a second IGBT real-time control signal for reducing the working current corresponding to the IGBT;

[0094] When the fault signal is a third-level fault signal, a third IGBT real-time control signal for forcibly controlling the IGBT to be in an on state is generated.

[0095] It should be noted that the aforementioned explanation of the embodiment of the multi-IGBT parallel drive protection method is also applicable to the multi-IGBT parallel drive protection device of this embodiment, and will not be repeated here.

[0096] In summary, the device provided by the embodiment of the present disclosure receives the state information of multiple IGBTs connected in parallel through a calculation unit, and generates an initial IGBT drive signal and a state feedback signal according to the state information; the high-speed drive signal generation unit performs parallel calculation on the initial IGBT drive signal to obtain a high-speed synchronous IGBT drive signal, wherein the IGBT drive signal is used to drive multiple IGBTs connected in parallel; the fault protection integrated logic unit constructs the interlocking logic between the state information and the IGBT drive signal, and drives and protects the IGBT according to the interlocking logic. Therefore, state feedback and drive protection when multiple IGBTs are connected in parallel can be realized.

[0097] In order to implement the above embodiments, the present disclosure also proposes an electronic device, including: a processor, and a memory communicatively connected to the processor; the memory stores computer-executable instructions; the processor executes the computer-executable instructions stored in the memory to implement the method provided by the above embodiments.

[0098] In order to implement the above embodiments, the present disclosure further proposes a computer-readable storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are executed by a processor, they are used to implement the methods provided by the above embodiments.

[0099] In order to implement the above embodiments, the present disclosure also proposes a computer program product, including a computer program, which implements the methods provided by the above embodiments when executed by a processor.

[0100] The collection, storage, use, processing, transmission, provision and disclosure of user personal information involved in this disclosure shall comply with the relevant laws and regulations and shall not violate public order and good morals.

[0101] It should be noted that personal information from users should be collected for legitimate and reasonable purposes and should not be shared or sold outside of these legitimate uses. In addition, such collection / sharing should be carried out after receiving the user's informed consent, including but not limited to notifying the user to read the user agreement / user notice and sign the agreement / authorization including authorization of relevant user information before the user uses the function. In addition, any necessary steps should be taken to protect and safeguard access to such personal information data and ensure that others who have access to personal information data comply with its privacy policy and procedures.

[0102] The present disclosure anticipates providing implementation schemes for users to selectively block the use or access of personal information data. That is, the present disclosure anticipates providing hardware and / or software to prevent or block access to such personal information data. Once the personal information data is no longer needed, risks can be minimized by limiting data collection and deleting the data. In addition, when applicable, such personal information is de-identified to protect the privacy of the user.

[0103] In the description of the aforementioned embodiments, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0104] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present disclosure, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0105] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present disclosure includes additional implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present disclosure belong.

[0106] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute the instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purpose of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or otherwise processing in a suitable manner if necessary, and then stored in a computer memory.

[0107] It should be understood that the various parts of the present disclosure can be implemented in hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, multiple steps or methods can be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used to implement: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0108] A person skilled in the art may understand that all or part of the steps in the above-mentioned embodiment method may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0109] In addition, each functional unit in each embodiment of the present disclosure may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0110] The storage medium mentioned above may be a read-only memory, a disk or an optical disk, etc. Although the embodiments of the present disclosure have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present disclosure. A person of ordinary skill in the art may change, modify, replace and modify the above embodiments within the scope of the present disclosure.

Claims

1. A multi-IGBT parallel drive protection method, characterized in that: include: Receiving state information of a plurality of IGBTs connected in parallel, and generating an initial IGBT drive signal and a state feedback signal according to the state information; Performing parallel calculation on the initial IGBT drive signal to obtain a high-speed synchronous IGBT drive signal, wherein the IGBT drive signal is used to drive the plurality of IGBTs connected in parallel; An interlocking logic is constructed between the state information and the IGBT driving signal, and the IGBT is driven and protected according to the interlocking logic.

2. The method according to claim 1, characterized in that The generating a state feedback signal according to the state information comprises: Extracting features from the state information to obtain IGBT operation feature values; A state feedback signal is generated according to the IGBT operation characteristic value.

3. The method according to claim 1, characterized in that The driving protection of the IGBT according to the interlocking logic includes: When the status information indicates that the multiple IGBTs connected in parallel are in an abnormal state, the IGBT drive signal is blocked, and an IGBT real-time control signal is generated to drive the multiple IGBTs connected in parallel.

4. The method according to claim 3, characterized in that The generating of the IGBT real-time control signal to drive the plurality of IGBTs connected in parallel comprises: generating a fault signal corresponding to the status information; An IGBT real-time control signal is generated according to the fault signal, and the plurality of IGBTs connected in parallel are driven according to the IGBT real-time control signal.

5. The method according to claim 1, characterized in that Generating an IGBT real-time control signal according to the fault signal comprises: In the case where the fault signal is a primary fault signal, generating a first IGBT real-time control signal for reducing the switching frequency of the IGBT drive signal; In the case where the fault signal is a secondary fault signal, generating a second IGBT real-time control signal for reducing the working current corresponding to the IGBT; In the case where the fault signal is a third-level fault signal, a third IGBT real-time control signal for forcibly controlling the IGBT to be in an on state is generated.

6. A multi-IGBT parallel drive protection device, characterized in that: include: A calculation unit, configured to receive status information of a plurality of IGBTs connected in parallel, and generate an initial IGBT drive signal and a status feedback signal according to the status information; A high-speed drive signal generating unit, configured to perform parallel calculation on the initial IGBT drive signal to obtain a high-speed synchronous IGBT drive signal, wherein the IGBT drive signal is used to drive the plurality of IGBTs connected in parallel; The fault protection integrated logic unit is used to construct an interlocking logic between the state information and the IGBT drive signal, and to drive and protect the IGBT according to the interlocking logic.

7. An electronic device, characterized in that: include: A processor, and a memory communicatively connected to the processor; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory to implement the method according to any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, which are used to implement the method according to any one of claims 1 to 5 when executed by a processor.

9. A computer program product, characterized in that The invention comprises a computer program, which implements the method according to any one of claims 1 to 5 when being executed by a processor.

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