Safety redundancy system and method of combined magnetic field six-phase motor

Abstract

The invention provides a safety redundancy system of a combined magnetic field six-phase motor, which comprises a combined magnetic field six-phase motor, a real-time monitoring module, a fault diagnosis module, an adaptive strategy adjustment module and a hierarchical protection mechanism module, and is characterized in that the signal end of the combined magnetic field six-phase motor is connected with the signal end of the real-time monitoring module. According to the invention, the self-adaptive strategy adjustment module is arranged, protection parameters can be dynamically adjusted according to the motor state monitored in real time, and when the current of the phase of the motor abnormally rises, the self-adaptive strategy adjustment module automatically adjusts the current limit value of the phase to prevent further development of a fault; according to the self-adaptive protection strategy, the system can adopt different protection measures according to different fault types and severity degrees, safe operation of the motor is guaranteed, unnecessary downtime is avoided, a fault isolation module is arranged, when a fault is detected, a fault phase can be rapidly isolated, and the fault detection efficiency is improved. And the influence of faults on the whole system is avoided.

Description

Technical Field

[0001] The present invention relates to a redundant system and method, specifically a safety redundant system and method for a combined magnetic field six-phase motor, belonging to the technical field of motor redundant control systems. Background Art

[0002] A combined magnetic field six-phase motor generally refers to a six-phase permanent magnet synchronous motor. The working principle of a six-phase motor is based on the magnetic motive force generated by permanent magnet materials, combined with the electromagnetic torque of the six-phase windings to drive the motor to rotate. During operation, current first flows in a phase coil to create a magnetic field, and then the magnetic field is transmitted to the next phase coil, and so on. In this way, the magnetic field is continuously created and changed, thereby driving the rotation of the rotor. Through the cyclic change and interaction of six-phase currents, a six-phase motor can generate a more stable and efficient rotational power.

[0003] The safety redundant system of a combined magnetic field six-phase motor mainly refers to the fault tolerance ability and reliability enhancement mechanism provided by its six-phase design. When one or more phases of the stator winding fail, by adopting appropriate fault tolerance control strategies, the remaining motor windings can be recombined to form a circular rotating magnetic potential trajectory, so that the motor can continue to operate stably. Such fault tolerance control strategies include adjusting current distribution, changing voltage vectors, etc., to ensure the output performance of the motor under fault conditions; There are three major technical bottlenecks in traditional six-phase motor fault tolerance solutions: Fault response hysteresis: Existing systems mostly adopt a threshold trigger protection mechanism. When the detected current / temperature exceeds the standard, the circuit is directly cut off, lacking a forward-looking prediction of progressive faults. Research shows that the average time from the initial insulation deterioration to complete breakdown of a winding partial short-circuit fault is 23.6 seconds, but traditional solutions often trigger protection in the later stage of the fault, missing the best intervention opportunity.

[0004] Rigid strategy: Fixed protection strategies are difficult to adapt to dynamic working conditions. For example, the load fluctuation of a six-phase motor used in a deep-sea drilling platform can reach 300% of the rated value. If the protection threshold is set only according to the rated parameters, the misoperation rate will increase.

[0005] Lack of recovery ability: Existing systems need to be restarted manually after the fault is eliminated and cannot achieve self-healing operation. Statistics from a wind farm show that among the shutdown events caused by phase-to-phase short circuits, 72% can be automatically restored through phase reconstruction, but traditional designs lack the corresponding mechanism.

[0006] At the same time, when a combined magnetic field six-phase motor fails, it is often necessary to formulate effective protection strategies to prevent the further spread and deterioration of the fault. However, due to the complexity of the six-phase motor, it is difficult to formulate appropriate protection strategies, and it is also difficult to adaptively adjust the protection strategy according to real-time monitoring data. Therefore, a safety redundant system and method for a combined magnetic field six-phase motor are proposed. Summary of the Invention

[0007] In view of this, the present invention provides a safety redundancy system and method for a combined magnetic field six-phase motor. By constructing a multi-layer collaborative protection mechanism and combining an adaptive algorithm with fault prediction technology, the system solves the problem of fault-tolerant control of six-phase motors under complex working conditions and is applicable to fields with strict requirements for operation continuity, such as aerospace propulsion systems, new energy vehicle drive devices, and industrial precision machining equipment, so as to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial alternative.

[0008] The technical solution of the embodiment of the present invention is implemented as follows: A safety redundancy system for a combined magnetic field six-phase motor includes a combined magnetic field six-phase motor, a real-time monitoring module, a fault diagnosis module, an adaptive strategy adjustment module, and a hierarchical protection mechanism module. The signal end of the combined magnetic field six-phase motor is connected to the signal end of the real-time monitoring module. The signal end of the fault diagnosis module is respectively connected to the signal end of the real-time monitoring module and the signal end of the adaptive strategy adjustment module. The signal end of the hierarchical protection mechanism module is connected to the signal end of the adaptive strategy adjustment module; The real-time monitoring module is used to continuously monitor the key operating parameters of the combined magnetic field six-phase motor through sensors, including current, voltage, temperature, vibration, noise, speed, and torque; The key operating parameters are collected in real time and transmitted to the fault diagnosis module for subsequent analysis and fault diagnosis; The fault diagnosis module is used to deeply analyze the real-time monitoring data and identify fault characteristics, which are obtained by comparing historical fault data and real-time monitoring data; The adaptive strategy adjustment module is used to dynamically adjust the protection strategy according to the real-time monitoring data and fault characteristics by using an adaptive control algorithm. When the current of a motor phase abnormally increases, the adaptive strategy adjustment module automatically adjusts the current limit value of that phase; There are three layers of protection mechanisms inside the hierarchical protection mechanism module, including a primary protection, a secondary protection, and a final protection; The primary protection is for minor faults, adjusting the motor operating parameters or switching to a standby phase; The secondary protection is for moderate faults, cutting off the power supply of the faulty phase or starting a standby motor; The final protection is for severe faults, cutting off the power supply of the entire motor system.

[0009] Further preferably, the adaptive control algorithm includes the following steps: Build a mathematical model of a combined magnetic field six-phase motor and a safety redundancy system, which is established based on the electrical, thermal, and mechanical characteristics of the combined magnetic field six-phase motor; Obtain the key operating parameters of the combined magnetic field six-phase motor, and preprocess the key operating parameters, including filtering, denoising, and data format conversion; Deeply analyze the preprocessed data, identify fault characteristics and diagnose fault types, and extract key features from the fault data, including the frequency, amplitude, and phase of the fault occurrence, and the key features are used as the input of the adaptive control algorithm; According to the real-time monitoring data and fault diagnosis results, dynamically adjust the protection strategy, including adjusting the operating parameters of the motor, switching the standby power supply or phase, starting fault warning and alarm; Execute corresponding protection measures according to the protection strategy output by the adaptive control algorithm. After executing the protection strategy, real-time monitor the operating state and fault conditions of the motor, input the feedback data into the adaptive control algorithm, and adjust and optimize the algorithm according to the new situation.

[0010] Further preferably, an actuator is provided in the hierarchical protection mechanism module for executing the corresponding protection mechanism according to the strategy sent by the adaptive strategy adjustment module.

[0011] Further preferably, the signal end of the hierarchical protection mechanism module is connected to a fault isolation module, and the signal end of the fault isolation module is connected to the signal end of the combined magnetic field six-phase motor; The fault isolation module is used to quickly isolate the fault phase when a fault is detected, and cut off the power supply of the fault phase or switch to the standby phase during isolation.

[0012] Further preferably, the signal end of the hierarchical protection mechanism module is also connected to a fault recovery module, and the signal end of the fault recovery module is connected to the signal end of the combined magnetic field six-phase motor; The fault recovery module is used to automatically restore the normal operation of the motor or switch to the standby system after the fault is isolated.

[0013] Further preferably, restoring the normal operation of the motor or switching to the standby system includes restarting the motor, switching to the standby phase, or starting the standby motor.

[0014] Further preferably, it further includes a configuration module, which is used to configure and set parameters of the system according to actual requirements.

[0015] Further preferably, it further includes a warning module, which is used to monitor abnormal data or faults and automatically send out alarm signals or warning messages.

[0016] Further preferably, a data recording and analysis module is connected to the signal end of the real-time monitoring module; The data recording and analysis module is used to record real-time monitoring data and fault diagnosis results, and perform data analysis, and the results of the data analysis provide a basis for system optimization and improvement.

[0017] A safety redundancy control method for a combined magnetic field six-phase motor includes the following steps: Step 1: Continuously monitor the key operating parameters of the combined magnetic field six-phase motor, deeply analyze the real-time monitoring data, and identify fault characteristics; Step 2: According to the real-time monitoring data and fault characteristics, dynamically adjust the protection strategy using an adaptive control algorithm; Step 3: Isolate the faulty phase of the combined magnetic field six-phase motor. When isolating, cut off the power supply of the faulty phase or switch to the standby phase; Step 4: After the fault is isolated, automatically resume the normal operation of the motor or switch to the standby system; Step 5: Record the real-time monitoring data and fault diagnosis results, and perform data analysis, providing a basis for system optimization and improvement.

[0018] Due to the above technical solutions adopted in the embodiments of the present invention, it has the following advantages: By setting an adaptive strategy adjustment module, the present invention can dynamically adjust the protection parameters according to the real-time monitored motor state. When the current of a motor phase abnormally increases, the adaptive strategy adjustment module automatically adjusts the current limit value of that phase to prevent the further development of the fault. The adaptive protection strategy enables the system to take different protection measures according to different fault types and severities, which not only ensures the safe operation of the motor but also avoids unnecessary downtime. A fault isolation module is also set up. When a fault is detected, it can quickly isolate the faulty phase and avoid the impact of the fault on the entire system. At the same time, the system also has a fault recovery function, which can attempt to resume the normal operation of the motor or switch to the standby system after the fault is isolated, greatly improving the fault tolerance and availability of the system. Even if a certain phase fails, it can ensure the normal operation of other phases and the system.

[0019] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the above-described illustrative aspects, embodiments, and features, further aspects, embodiments, and features of the present invention will be readily apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 It is a structural diagram of a safety redundancy system for a combined magnetic field six-phase motor of the present invention; Figure 2 It is a step flow chart of a safety redundancy control method for a combined magnetic field six-phase motor of the present invention. Detailed implementation manners

[0022] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present invention. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0023] The following will describe the embodiments of the present invention in detail with reference to the accompanying drawings.

[0024] As Figure 1 - Figure 2 shown, the embodiments of the present invention provide a safety redundancy system for a combined magnetic field six-phase motor, including a combined magnetic field six-phase motor, a real-time monitoring module, a fault diagnosis module, an adaptive strategy adjustment module, and a hierarchical protection mechanism module. The signal terminal of the combined magnetic field six-phase motor is connected to the signal terminal of the real-time monitoring module. The signal terminal of the fault diagnosis module is respectively connected to the signal terminal of the real-time monitoring module and the signal terminal of the adaptive strategy adjustment module. The signal terminal of the hierarchical protection mechanism module is connected to the signal terminal of the adaptive strategy adjustment module; The real-time monitoring module continuously monitors the key operating parameters of the combined magnetic field six-phase motor through sensors, including current, voltage, temperature, vibration, noise, speed, and torque; The key operating parameters are collected in real time and transmitted to the fault diagnosis module for subsequent analysis and fault diagnosis. Through real-time monitoring, it can be ensured that the motor is always in a safe and efficient operating state; The fault diagnosis module deeply analyzes the real-time monitoring data and identifies fault characteristics. The fault characteristics are obtained by comparing the historical fault data and the real-time monitoring data. By comparing the historical fault data and the real-time monitoring data, the fault diagnosis module can achieve early warning and accurate diagnosis of faults; The adaptive strategy adjustment module dynamically adjusts the protection strategy according to the real-time monitoring data and fault characteristics by using an adaptive control algorithm. When the current of a motor phase abnormally increases, the adaptive strategy adjustment module automatically adjusts the current limit value of that phase; There are three protection mechanisms set inside the hierarchical protection mechanism module, including primary protection, secondary protection, and final protection; The primary protection targets minor faults and adjusts the motor operating parameters or switches to the standby phase; The secondary protection targets moderate faults and cuts off the power supply of the faulty phase or starts the standby motor; The final protection targets severe faults and cuts off the power supply of the entire motor system.

[0025] In one embodiment, the adaptive control algorithm includes the following steps: Construct a mathematical model of the combined magnetic field six-phase motor and the safety redundancy system. The mathematical model is established based on the electrical characteristics, thermal characteristics, and mechanical characteristics of the combined magnetic field six-phase motor. Through the model, the operating state and fault modes of the motor can be described. In the system model, some key parameters need to be initialized, such as the rated current, rated voltage, temperature threshold of the motor, etc. These parameters will be used as the input and judgment basis for the adaptive control algorithm; Obtain the key operating parameters of the combined magnetic field six-phase motor and preprocess the key operating parameters, including filtering, denoising, and data format conversion; Deeply analyze the preprocessed data, identify the fault characteristics and diagnose the fault type, and extract key features from the fault data, including the frequency, amplitude, and phase of the fault occurrence. The key features are used as the input of the adaptive control algorithm; According to the real-time monitoring data and the fault diagnosis results, dynamically adjust the protection strategy, including adjusting the motor operating parameters, switching the standby power supply or phase, starting the fault warning and alarm. During the application of the algorithm, continuously collect new monitoring data and fault diagnosis results to optimize and iterate the adaptive control algorithm to improve the accuracy and robustness of the algorithm; Execute the corresponding protection measures according to the protection strategy output by the adaptive control algorithm. After executing the protection strategy, real-time monitor the operating state and fault situation of the motor, input the feedback data into the adaptive control algorithm, and adjust and optimize the algorithm according to the new situation; In the adaptive control algorithm, the parameters of the PID controller are dynamically adjusted according to the real-time monitoring data and the fault diagnosis results. The output of the PID controller can be calculated by the following formula: ; Wherein, u ( t ) is the output of the PID controller; e ( t ) is the error signal (i.e., the difference between the desired output and the actual output); K pis the proportionality coefficient; K i is the integral coefficient; K d is the differential coefficient; In fault diagnosis, the Fourier transform is used to analyze the spectral characteristics of signals such as current and voltage. The basic formula of the Fourier transform is: ; where X ( f ) is the Fourier transform of the signal x ( t ); f is the frequency; t is the time; j is the imaginary unit.

[0026] In one embodiment, an actuator is provided inside the hierarchical protection mechanism module. The actuator is a PID controller, which is used to execute the corresponding protection mechanism according to the policy sent by the module adjusted by the adaptive policy.

[0027] In one embodiment, the signal end of the hierarchical protection mechanism module is connected to a fault isolation module, and the signal end of the fault isolation module is connected to the signal end of the combined magnetic field six-phase motor; When the fault isolation module detects a fault, it quickly isolates the faulty phase. When isolating, it cuts off the power supply of the faulty phase or switches to the standby phase. By isolating the fault, the impact on the entire system is avoided.

[0028] In one embodiment, the signal end of the hierarchical protection mechanism module is also connected to a fault recovery module, and the signal end of the fault recovery module is connected to the signal end of the combined magnetic field six-phase motor; After the fault is isolated by the fault recovery module, it automatically restores the normal operation of the motor or switches to the standby system. The specific methods include restarting the motor, switching to the standby phase, or starting the standby motor; If the fault can be repaired, restart the motor or switch to the standby phase; if the fault cannot be repaired, start the standby motor.

[0029] The configuration module configures and sets the parameters of the system according to the actual requirements, and adjusts the configuration of the system according to the actual requirements, such as adjusting the protection policy, setting the alarm threshold, etc. By setting and optimizing the key parameters of the system, the performance and stability of the system can be improved.

[0030] In one embodiment, the early warning module is used to monitor abnormal data or faults and automatically send out alarm signals or early warning messages. The early warning module can be implemented through means such as sound, light, text messages, or emails to remind maintenance personnel to take timely measures.

[0031] In one embodiment, the signal end of the real-time monitoring module is connected to a data recording and analysis module; The data recording and analysis module records real-time monitoring data and fault diagnosis results and conducts data analysis, including data visualization, trend analysis, fault mode recognition, etc. The results of the data analysis can provide a basis for system optimization and improvement.

[0032] 1. Real-time monitoring module: Sensor network configuration: Electromagnetic monitoring: Install TMR magnetoresistive sensors (accuracy ±0.5mT) in each phase winding, with a sampling rate of 1MHz; Thermal field monitoring: Use an FBG fiber grating array (spatial resolution 2mm) and arrange it in the stator slots and ends; Vibration monitoring: Install MEMS triaxial accelerometers (bandwidth 0 - 20kHz) at key points on the bearing housing and the machine casing; 2. Fault diagnosis module: Feature extraction: Time-domain features: Wavelet packet decomposition is used to extract the energy entropy of each frequency band; Frequency-domain features: The improved S transform is used to calculate the singular values of the time-frequency matrix; Space-time features: Construct a three-dimensional thermal gradient tensor; Digital twin model: Establish a multi-physics field coupling model of a six-phase motor in AnsysMaxwell and realize it through real-time data driving: Inter-turn short circuit fault of the winding: Modify the coil resistance parameters to simulate local overheating; Demagnetization fault of the permanent magnet: Adjust the gain of the flux observer; Bearing wear fault: Introduce an equivalent radial force pulse; 3. Adaptive strategy adjustment module: Deep reinforcement learning framework: Construct a Markov decision process (MDP): State space: Includes 12-dimensional features such as the total harmonic distortion (THD) of the current and the temperature rise slope dT / dt; Action space: {Adjust the PWM frequency, switch the neutral point, reconstruct the winding topology}; 4. Hybrid circuit breaker: Power electronics layer: Parallel SiCMOSFETs (with a withstand voltage of 1700V) are used to achieve μs-level fast breaking; Mechanical layer: The electromagnetic repulsion mechanism ensures physical isolation, and the breaking capacity reaches 100 kA; Energy discharge: The LC oscillation circuit guides the arc into the arc extinguishing chamber; Implementation cases: Taking the propulsion motor of a certain deep-sea mining ship as an example, the system performance in the following fault scenarios: Scenario 1: Inter-turn short circuit of the stator winding; t = 0 s: The insulation resistance of the 5th coil of phase A winding drops to 10 Ω; t + 23 ms: The monitoring module detects that the zero-sequence current 3I0 > 0.1In; t + 56 ms: The diagnostic module locates the fault at the stator slot S12; t + 102 ms: The strategy module decides to cut in the △ connection method to bypass the fault point; t + 150 ms: The torque ripple drops from 12% to 4%, maintaining 85% of the rated output; Scenario 2: The propeller blade is jammed; t = 0 s: The load torque suddenly increases to 300% Te; t + 5 ms: The current prediction module triggers the feedforward compensation; t + 20 ms: Adjust the weak magnetic control angle δ to 65°; t + 100 ms: The torque smoothly transitions to the safety threshold to avoid overcurrent tripping.

[0033] A safety redundancy control method for a combined magnetic field six-phase motor, comprising the following steps: Step 1: Continuously monitor the key operating parameters of the combined magnetic field six-phase motor, deeply analyze the real-time monitoring data, and identify the fault characteristics; Step 2: According to the real-time monitoring data and fault characteristics, dynamically adjust the protection strategy using an adaptive control algorithm; Step 3: Isolate the faulty phase of the combined magnetic field six-phase motor. When isolating, cut off the power supply of the faulty phase or switch to the standby phase; Step 4: After the fault is isolated, automatically resume the normal operation of the motor or switch to the standby system; Step 5: Record the real-time monitoring data and fault diagnosis results, and conduct data analysis to provide a basis for system optimization and improvement.

[0034] When the present invention is in operation: The key operating parameters of the combined magnetic field six-phase motor are continuously monitored by the real-time monitoring module, the real-time monitoring data is deeply analyzed to identify fault characteristics, the adaptive strategy adjustment module dynamically adjusts the protection strategy using the adaptive control algorithm according to the real-time monitoring data and fault characteristics, the fault isolation module isolates the fault phase of the combined magnetic field six-phase motor, and when isolating, cuts off the power supply of the fault phase or switches to the standby phase. After the fault is isolated, the normal operation of the motor is automatically restored or switched to the standby system. The data recording and analysis module records the real-time monitoring data and the fault diagnosis results, and conducts data analysis to provide a basis for system optimization and improvement.

[0035] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various changes or substitutions thereof, and these should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A safety redundant system for a combined magnetic field six-phase motor, comprising a combined magnetic field six-phase motor, a real-time monitoring module, a fault diagnosis module, an adaptive strategy adjustment module and a hierarchical protection mechanism module, characterized in that: The signal end of the combined magnetic field six-phase motor is connected to the signal end of the real-time monitoring module, the signal end of the fault diagnosis module is respectively connected to the signal end of the real-time monitoring module and the signal end of the adaptive strategy adjustment module, and the signal end of the hierarchical protection mechanism module is connected to the signal end of the adaptive strategy adjustment module; The real-time monitoring module is used to continuously monitor the key operating parameters of the combined magnetic field six-phase motor through sensors, including current, voltage, temperature, vibration, noise, speed and torque; The key operating parameters are collected in real time and transmitted to the fault diagnosis module for subsequent analysis and fault diagnosis; The fault diagnosis module is used to perform in-depth analysis on the real-time monitoring data and identify fault characteristics, wherein the fault characteristics are obtained by comparing the historical fault data with the real-time monitoring data; The adaptive strategy adjustment module is used to dynamically adjust the protection strategy using an adaptive control algorithm according to real-time monitoring data and fault characteristics. When the current of a motor phase increases abnormally, the adaptive strategy adjustment module automatically adjusts the current limit value of the phase; The layered protection mechanism module is internally provided with three layers of protection mechanisms, including primary protection, secondary protection and final protection; The primary protection adjusts the motor operating parameters or switches to a standby phase for minor faults; The secondary protection cuts off the power supply of the faulty phase or starts the standby motor for moderate faults; The final protection cuts off the power supply to the entire motor system for severe faults.

2. A safety redundant system for a combined field six-phase motor according to claim 1, characterized in that: The adaptive control algorithm comprises the following steps: Constructing a mathematical model of a combined magnetic field six-phase motor and a safety redundant system, wherein the mathematical model is established based on electrical characteristics, thermal characteristics and mechanical characteristics of the combined magnetic field six-phase motor; Obtain key operating parameters of the combined field six-phase motor and pre-process the key operating parameters, including filtering, denoising and data format conversion; Perform in-depth analysis on the preprocessed data, identify fault features and diagnose fault types, and extract key features from the fault data, including the frequency, amplitude, and phase of the fault. The key features are used as inputs to the adaptive control algorithm. Dynamically adjust protection strategies based on real-time monitoring data and fault diagnosis results, including adjusting motor operating parameters, switching backup power or phase, and initiating fault warnings and alarms; According to the protection strategy output by the adaptive control algorithm, corresponding protection measures are executed. After the protection strategy is executed, the operating status and fault conditions of the motor are monitored in real time, and the feedback data is input into the adaptive control algorithm to adjust and optimize the algorithm according to the new situation.

3. A safety redundant system for a combined magnetic field six-phase motor according to claim 2, characterized in that: An executor is provided in the layered protection mechanism module, which is used to execute the corresponding protection mechanism according to the policy sent by the adaptive policy adjustment module.

4. A safety redundant system for a combined field six-phase motor according to claim 3, characterized in that: The signal end of the hierarchical protection mechanism module is connected to a fault isolation module, and the signal end of the fault isolation module is connected to the signal end of the combined magnetic field six-phase motor; The fault isolation module is used to quickly isolate the faulty phase when a fault is detected, and to cut off the power supply of the faulty phase or switch to a spare phase during isolation.

5. A safety redundant system for a combined field six-phase motor according to claim 4, characterized in that: The signal end of the hierarchical protection mechanism module is also connected to a fault recovery module, and the signal end of the fault recovery module is connected to the signal end of the combined magnetic field six-phase motor; The fault recovery module is used to automatically restore the normal operation of the motor or switch to a backup system after the fault is isolated.

6. A safety redundant system for a combined field six-phase motor according to claim 5, characterized in that: Restoring the normal operation of the motor or switching to the standby system includes restarting the motor, switching to the standby phase, or starting the standby motor.

7. A safety redundant system for a combined field six-phase motor according to claim 6, characterized in that: It also includes a configuration module, which is used to configure and set parameters of the system according to actual needs.

8. The safety redundant system of a combined field six-phase motor according to claim 7, characterized in that: It also includes an early warning module, which is used to monitor abnormal data or faults and automatically send out an alarm signal or early warning information.

9. A safety redundant system for a combined field six-phase motor according to claim 8, characterized in that: The signal end of the real-time monitoring module is connected to a data recording and analysis module; The data recording and analysis module is used to record real-time monitoring data and fault diagnosis results, and perform data analysis. The results of the data analysis provide a basis for system optimization and improvement.

10. A safety redundant control method for a combined magnetic field six-phase motor, applied to the safety redundant control system for a combined magnetic field six-phase motor as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Continuously monitor the key operating parameters of the combined field six-phase motor, conduct in-depth analysis of the real-time monitoring data, and identify fault characteristics; Step 2: Dynamically adjust the protection strategy using an adaptive control algorithm based on real-time monitoring data and fault characteristics; Step 3: Isolate the faulty phase of the combined field six-phase motor, and cut off the power supply of the faulty phase or switch to the spare phase during isolation; Step 4: After the fault is isolated, automatically restore the normal operation of the motor or switch to the backup system; Step 5: Record real-time monitoring data and fault diagnosis results, and perform data analysis to provide a basis for system optimization and improvement.

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