111 results about "Current vector" patented technology

The invention discloses a frequency conversion vector control method for a digital energy-saving pump station, which belongs to the technical field of vector control and comprises the following steps: constructing a coupling vector model, simulating the running states of a pump unit under different working conditions through a virtual test signal, and automatically correcting the coupling vector model; operating data of a pump set are collected in real time, an operating situation feature set is constructed, predictive vector control is carried out, an optimal voltage vector sequence is generated, and meanwhile load fluctuation of a pipe network is predicted; demand pre-judgment is carried out on the starting and stopping time and the action amplitude of the anti-backflow device, a bidirectional disturbance suppression mechanism is constructed, current vector parameters are pre-adjusted, and calculus correction is carried out based on deviation judgment; when multiple pumps operate in parallel, the instantaneous operation efficiency point of the pump set is calculated in real time, the efficiency change trend is predicted, a load distribution scheme is generated, the comprehensive energy efficiency is evaluated, energy efficiency self-optimization is carried out, the comprehensive energy efficiency of the system is improved, and control experience reuse is achieved.

The invention relates to the technical field of fault testing, in particular to a dry-type air-core reactor turn-to-turn short circuit monitoring method based on a magnetic field difference method. According to the method, regularization constraint is introduced in an initial baseline stage to construct a reference electromagnetic coupling matrix, a heat accumulation index is recursively analyzed based on three-phase current energy, a thermally-induced magnetic field drift model is fitted in combination with magnetic field residual errors, and combined with combined constraint of the reference electromagnetic coupling matrix and the thermal drift model, a three-phase electromagnetic coupling model is established. The normal thermally induced magnetic field drift component is dynamically stripped in real-time monitoring; and under the constraint of a reference electromagnetic coupling matrix, fitting and optimizing a current vector through weighted least square state estimation, and integrating magnetic field and current two-dimensional deviation to obtain a structure consistency deviation index for fault monitoring. According to the invention, monitoring is carried out in consideration of a linear electromagnetic transfer rule and nonlinear thermal drift compensation, a complex magnetic field environment and a variable load operation condition of the dry-type air-core reactor are adapted, and continuous and reliable monitoring guarantee is provided for long-term stable operation of equipment.

The invention relates to the technical field of power distribution network automation, and discloses an electrical variable monitoring method for ring main unit operation, which comprises the following steps: acquiring three-phase electrical variable data in response to a condition that a load current change rate exceeds a preset micro-motion excitation threshold value; calculating a reference voltage based on the circuit state equation containing the inter-phase mutual inductance coupling term; the method comprises the following steps: constructing a rotating coordinate system taking a current vector as a reference axis, performing vector decomposition on a voltage deviation vector, separating a resistive temperature drift voltage component parallel to the reference axis, and taking a nonlinear impedance voltage component perpendicular to the reference axis as a monitoring parameter to judge a contact state. According to the method, linear resistance drift caused by conductor temperature rise is effectively decoupled, baseline interference is eliminated, weak nonlinear impedance distortion characteristics caused by mechanical contact degradation can be captured, and the recognition sensitivity and accuracy of early latent faults of the ring main unit are improved.

The invention relates to the technical field of on-line monitoring, in particular to an insulation fault on-line monitoring method and system for a medical IT system control cabinet. The method comprises the following steps: selecting a non-integer frequency multiplication detection frequency according to equivalent ground distributed capacitance in a previous monitoring period, and superposing the non-integer frequency multiplication detection frequency with a fundamental frequency to form a composite signal injection system; collecting signals to calculate a voltage instantaneous harmonic distortion rate change gradient, and selecting a time window to split the leakage current according to the change gradient; on the basis of dispersion estimation signal-to-noise ratio weighted fusion current vectors, insulation resistance and distributed capacitance are calculated; constructing a four-dimensional original feature vector composed of the insulation parameter, the phase difference and the intermodulation component energy; constructing a diagonal weighting matrix based on the resistance-capacitance ratio and the gradient to transform a feature vector, and determining the fault attribution through the Mahalanobis distance calculation with the fault template library. According to the scheme, harmonic interference can be avoided, calculation stability can be improved, insulation instantaneous sudden change can be quickly responded, and different fault types can be accurately distinguished to guide maintenance.

The invention relates to the technical field of power electronic control and new energy power generation, and discloses an energy storage type photovoltaic off-grid inverter control method and system. The method comprises the following steps: acquiring an analog voltage signal and an analog current signal, and inputting the analog voltage signal and the analog current signal into a preset adaptive filter to obtain a disturbance component sequence; calculating a disturbance current sudden change degree, and if the disturbance current sudden change degree exceeds a preset sudden change threshold, constructing a to-be-counteracted current vector; determining a target phase lead angle according to the to-be-counteracted current vector and a preset transformer phase lag model, and generating a correction time domain compensation signal; generating a comprehensive modulation signal and an inverter switching instruction sequence to drive an inverter; updating a filter coefficient based on the distortion rate and determining a compensation voltage gain; and performing closed-loop correction on the sampling trigger time sequence of the analog current signal according to the system loop transmission delay to obtain a calibration current sequence. The method can effectively overcome the phase lag of the transformer and the transmission delay of hardware, and improve the electric energy quality under the nonlinear load.

The invention relates to the technical field of power grid safety evaluation, in particular to a power system short-circuit parameter prediction method, system and device based on time-space relevance and a storage medium. A multi-dimensional state vector including a node voltage vector, a branch current vector, a short-circuit impedance matrix, spatial position information and a time feature vector is constructed, and a space-time correlation feature vector including a time-dimensional feature, a spatial-dimensional feature, a space-time coupling feature and a state feature is extracted. Wavelet transform, Fourier analysis and graph theory analysis are adopted to identify a parameter change rule and a propagation effect. A multi-level prediction model of a statistical prediction layer, a deep learning layer and a fusion layer is constructed, and comprehensive description of dynamic characteristics of short-circuit parameters is realized through spatio-temporal feature fusion. A staged training strategy is adopted, and comprises the steps of establishing a basic model through offline training, updating parameters in real time through online learning, and quantifying uncertainty through a probability prediction framework. And a prediction correction mechanism and a reliability evaluation system are established, and a complete prediction-evaluation-correction closed loop is formed.

The invention discloses a generator stator winding single-phase earth fault positioning method, system and device and a medium, and the method comprises the steps: enabling three phases of a generator stator winding to be connected in series end to end to form a series loop; low-frequency voltage pulses are injected into the three-phase winding, and a fault phase is determined by comparing symmetry damage characteristics of tail-end current by adopting a tail-end current vector analysis method; injecting a low-frequency voltage pulse into the current phase winding, detecting the current difference between the head end and the tail end of each parallel branch, identifying a branch with abnormal leakage current by combining a leakage current characteristic analysis method, and determining a fault branch; establishing a high-frequency distribution parameter model, and performing high-frequency voltage pulse injection positioning for multiple times to obtain three independent high-frequency pulse positioning results; and performing weighted fusion on the three independent high-frequency pulse positioning results, and performing optimization by using an intelligent optimization algorithm to obtain an optimized single-phase earth fault position. According to the invention, the accuracy and rapidity of fault diagnosis and positioning can be improved.

The invention discloses a cutting machine motor intelligent temperature management method and system based on load prediction, relates to the technical field of cutting machine motor temperature management, and is used for solving the problems of temperature response lag and local overheating under the conditions of complex tracks and load fluctuation. In the operation process of the cutting machine, three-phase stator side current signals of the motor are continuously captured, a current vector input quantity is obtained through coordinate transformation and input into the sliding mode observer to estimate the rotor position and the motor rotating speed, a load trend quantity is generated, combined compensation modulation is carried out, and a compensation value is output to a power output link to dynamically adjust the duty ratio. According to path analysis, marking a hot stacking sensitive path section, calculating a power output change rate and shielding wind flow disturbance intensity, screening out a thermal response to-be-detected section, collecting data through a thermosensitive channel to construct a regional thermal risk index, executing differential air cooling adjustment and power modulation path adjustment, and recording state data in real time; and fine management of the full-working-condition temperature of the motor of the cutting machine is realized.

The application provides a dual-electricity-controlled multi-phase current sampling crosstalk correction system and method with a boosting function, which comprises a dual-electricity-controlled three-phase circuit, a boosting circuit module and a dual-electricity-controlled single-chip microcomputer. The dual-electricity-controlled three-phase circuit comprises a GM motor three-phase circuit and a TM motor three-phase circuit. The boosting circuit module comprises a first phase boosting unit and a second phase boosting unit. The dual-electricity-controlled single-chip microcomputer collects eight-way phase current signals corresponding to the GM motor three-phase circuit, the TM motor three-phase circuit and the boosting circuit module. A software compensation module is further arranged in the dual-electricity-controlled single-chip microcomputer. A crosstalk compensation matrix is preset in the software compensation module. The software compensation module constructs eight-dimensional phase current signal vectors from the eight-way phase currents, calculates the product of the eight-dimensional phase current vectors and the crosstalk compensation matrix, obtains eight-dimensional calibrated current vectors, extracts each phase real current signal in the eight-dimensional calibrated current signal and outputs the same.

The application relates to the technical field of general control or regulation systems, and discloses an automatic regulation method for a plug taking pump operation, which comprises the following steps: synchronously acquiring a voltage vector and a current vector of a controlled execution unit; calculating a transient active power by calculating a scalar product of the voltage vector and the current vector; removing a steady power consumption component in the transient active power to extract an energy recoil pulse; generating a micro-elastic recoil energy product representing load yield information by integration; monitoring a differential gradient of the micro-elastic recoil energy product; and determining an output negative gradient duty cycle signal at a collapse moment to regulate a power slope. The application uses a vector power analysis mechanism to capture a load fragmentation signal, eliminates hydraulic hysteresis of a control loop, ensures that a negative pressure release rate of a pipeline matches a load displacement increment, and improves regulation accuracy under a load impedance step working condition.

This invention relates to the field of fault testing technology, specifically to a method for monitoring inter-turn short circuits in dry-type air-core reactors based on the magnetic field difference method. This method constructs a reference electromagnetic coupling matrix by introducing regularization constraints in the initial baseline stage. Based on the recursive analysis of the three-phase current energy thermal accumulation index, it combines the magnetic field residual to fit a thermally induced magnetic field drift model. By combining the joint constraints of the reference electromagnetic coupling matrix and the thermal drift model, the normal thermally induced magnetic field drift component is dynamically removed during real-time monitoring. Under the constraints of the reference electromagnetic coupling matrix, the current vector is optimized through weighted least squares state estimation. The structural consistency deviation index is obtained by comprehensively considering the dual-dimensional deviations of the magnetic field and current for fault monitoring. This invention balances linear electromagnetic transfer laws with nonlinear thermal drift compensation for monitoring, adapting to the complex magnetic field environment and variable load operating conditions of dry-type air-core reactors, providing continuous and reliable monitoring assurance for the long-term stable operation of the equipment.

The invention discloses a method and a device for calculating short-circuit current of an electric power system, a medium and a terminal, relates to the technical field of short-circuit current calculation of the electric power system, and mainly aims to solve the problem that the short-circuit current of a multi-source heterogeneous electric power system cannot be accurately calculated in the prior art. Comprising the following steps: simulating a short-circuit fault in a simulation environment of a target power system, and constructing a non-fault node admittance matrix; calculating an initial current value of each power supply node to obtain an initial system-wide node injection current vector of the target power system, calculating a quotient between the initial system-wide node injection current vector and a non-fault node admittance matrix to obtain a first iteration system-wide node voltage vector of the target power system, and constructing an iteration solution equation; and performing iterative solution on the basis of the iterative solution equation until a preset convergence condition is met, obtaining a full-system node voltage vector after iteration is completed, and calculating the short-circuit current of the target power system according to the full-system node voltage vector after iteration is completed.

The application provides a motor open-phase detection method and related equipment. The method comprises the following steps: obtaining the amplitude of the current vector of the motor, and determining whether the current is a large current or a small current according to the amplitude; for the case that the current is a large current, performing open-phase detection on the motor based on the integral of the amplitude of the current vector; for the case that the current is a small current, performing open-phase detection on the motor based on the polarity of the current. The method can distinguish between the large current and the small current according to the amplitude of the current without introducing other hardware, and then select different open-phase detection methods of the motor, thereby ensuring the accuracy and pertinence of the open-phase detection of the motor.

The application belongs to the technical field of integrated circuits, and discloses a circuit structure for one-step solution of linear equations based on a memristor array, wherein the linear equations are Ax=b, and in the circuit, a first memristor array matrix operation core realizes mapping of the matrix A, takes a negative value of a first operation voltage vector as a bit line voltage, performs a matrix multiplication operation, reads a word line current as a first operation current vector after the operation, a bias mapping module maps b into a bias current vector, a current superposition module superimposes the first operation current vector and the bias current vector to generate a superimposed current vector, and converts the superimposed current vector into a second operation voltage vector through a transimpedance amplifier module, a second memristor array matrix operation core realizes mapping of the matrix A, takes the second operation voltage vector as a bit line voltage, performs a matrix multiplication operation, reads a word line current, and performs an integral operation on the word line current through an integrator module to obtain an updated first operation voltage vector. T The above hardware circuit can realize solution of the linear equations.

The invention discloses a DC micro-grid power buffer safety control method and device aiming at FDI attack, and relates to the technical field of power electronics and power system control. The method comprises the steps of obtaining a block matrix of a DCmGs system node current equation according to the Kirchhoff's current law; adopting Kron simplification to eliminate internal node voltage, obtaining a relation between a port current vector and a voltage vector, and constructing a small signal model of the port voltage vector; based on a small signal model, a linear mapping relation about disturbance of bus voltage to equivalent input impedance of each power buffer is constructed, modeling and linearization are carried out on energy and adjustable input impedance of each power buffer, a network coupling small signal model is constructed, and a second-order high-gain observer is designed; and if the FDI attack exists in the DCmGs system, an anti-FDI attack elastic control law is designed, so that the closed-loop voltage in the DCmGs system and the energy of a power buffer are quickly converged, and buffeting is inhibited. By adopting the method, the DCmGs system can be prevented from buffeting in an unknown FDI attack scene.

The invention belongs to the technical field of starting control of an aviation starting and power generation integrated system, and particularly relates to a sensorless starting control method for an aviation three-stage type starting generator. The method comprises the following steps: estimating the initial rotating speed of starting with rotation by utilizing the voltage of a permanent magnet machine of a three-stage starter generator, starting according to the frequency of a given current vector and a corresponding current amplitude value of the rotating speed estimated by the voltage of the permanent magnet machine through I / f control, and estimating the rotor position of the three-stage starter generator through the counter electromotive force of a main generator at the same time; and when the rotor position estimated by the counter electromotive force coincides with the rotor position given by the I / f starting, the I / f starting is switched to the counter electromotive force position estimation through weighted switching, so that the non-position rotation starting function of the three-stage starter generator is realized.

A method (100) for calibrating the offset angle (PhiO) of a field orientation regulator of a motor (210) between the angle signal (W) of a position sensor (220) and the direction of the rotor flux (RF), comprising the steps of: periodically changing (120) a current vector (Is) along a constant torque line; determining (130) a rotational speed signal (n_t) of the position sensor (220) of the motor (210); and calibrating (140) the offset angle (PhiO) based on the determined rotational speed signal (n_t).

The invention provides a submarine observation network power supply system fault positioning method considering continuous node data anomaly. The method comprises the steps of constructing a node admittance matrix through a node space relationship; acquiring the voltage of each node and the shore-based station current, calculating a leakage current vector matrix, calculating a leakage current error threshold, and judging whether the leakage current exceeds the leakage current error threshold; when the leakage current exceeds the threshold value, judging whether a short-circuit condition is met or not, and directly carrying out fault positioning if the short-circuit condition is met; and if not, correcting the leakage vector matrix by adopting a negative infinite norm iteration method, and returning to the step S3 by adopting the corrected leakage vector matrix to carry out fault location again. According to the submarine observation network power supply system fault positioning method considering the continuous node data anomaly, the problem that an existing method fails in a continuous multi-node data anomaly environment is solved, and the reliability and the safety of a submarine observation network direct current power supply system are effectively improved.

The invention discloses a flexible direct-current power grid protection method based on a fault vector inner product, and belongs to the field of power system relay protection, and the method comprises the steps: collecting a line mode fault voltage vector and a current vector with a fixed data window length; the transient inner product of the two is calculated, and the amplitude of the transient inner product is utilized to form a single-ended main protection criterion so as to identify a low-resistance fault; a direction criterion is formed by using the interior angle of the direction, and is matched with opposite-end information to form pilot backup protection so as to identify a high-resistance fault and a boundary-free element scene. According to the method, multi-section protection is formed through comprehensive utilization of the transient inner product of the voltage and the current, the fault feature difference is expanded, dependence on singular point information is avoided, and the method has the advantages of clear threshold value, high anti-interference capability and high reliability and is suitable for the flexible direct-current power grid with the extremely high requirement for quickness.

The invention discloses a motor heating method and device, and a frequency converter. The method comprises the steps of determining an initial current instruction, and performing adjustment amplitude limiting and current compensation processing on the initial current instruction based on a voltage utilization rate to obtain a rotation current angular frequency and a compensation current instruction; a target axis given current instruction is determined based on the given heating power, and a target axis current instruction is obtained based on the target axis given current instruction and the compensation current instruction; acquiring a voltage vector compensation angle and a current vector angle based on the rotating current angular frequency, and acquiring a voltage vector angle based on the voltage vector compensation angle and the current vector angle; and inputting the target shaft current instruction and the voltage vector angle to a preset current controller, so that an inverter outputs high-frequency alternating current to a motor to heat the motor. The power control precision and the control robustness are improved, the dynamic control with a wider heating power range can be realized, and excessive computing resources are not needed.

The application discloses a permanent magnet synchronous motor MTPA control method based on double virtual direct current signal injection, and particularly relates to a motor control method, in particular to a control method of a permanent magnet synchronous motor under a high-speed low-carrier ratio working condition. β A pair of virtual direct current signals with the same amplitude and opposite polarity are injected into a current vector angle, an electromagnetic torque containing the pair of signals is Taylor expanded, subtraction operation is performed on the two to obtain an approximate value of a first-order partial derivative of the torque to the current vector angle, the approximate value is input into an integral regulator, and when the input is controlled to be 0, an optimal current vector angle can be obtained β mtpa , and MTPA control is realized. In order to simultaneously improve dynamic performance and steady-state performance of the control, the method selects virtual direct current signals with different amplitudes to be injected under different working conditions, so that the motor can quickly approach an optimal current vector angle working state, and fluctuation of the current vector angle under a stable state is reduced.

The invention discloses a permanent magnet synchronous motor rotor polarity judgment method and a permanent magnet synchronous motor. The method comprises the following steps: injecting high-frequency voltage to obtain an initial observation angle by extracting high-frequency current response; selecting an injection angle closest to the initial observation angle from injection angles of two-two conduction and three-three conduction corresponding to a single voltage vector as a first injection angle, and determining an angle which differs from the first injection angle by 180 degrees as a second injection angle; and injecting square wave pulses at the first injection angle and the second injection angle respectively to obtain a first current vector and a second current vector, and taking the initial observation angle or an angle which differs by 180 degrees from the initial observation angle as a rotor angle based on a comparison result of the current vectors. According to the method, two angles are selected from 12 injection angles of two-two conduction and three-three conduction for rotor polarity judgment, so that the difference value between the voltage vector injection angle and the real position is reduced, and the accuracy of rotor polarity judgment is improved.

The invention relates to the technical field of real-time simulation, and particularly discloses a cascade H-bridge PET multi-device collaborative real-time simulation method and system based on an FPGA, and the method comprises the steps: positioning an electrical connection point between a DC side capacitor of each H-bridge unit and a DAB input interface in a PET system, splitting the system, and obtaining a three-phase cascade H-bridge part and each phase DAB DC level; the main simulator side simulates a three-phase cascade H-bridge part, adopts 3 * n groups of controlled current sources to be equivalent to a slave DAB direct current level, and measures the voltage vector at each controlled current source end in real time; and the three slave simulators adopt each phase cascade H-bridge sub-module of n groups of controlled voltage source equivalent hosts to synchronously measure the current vector of the controlled voltage source, and after processing, bidirectional data interaction between the master and slave simulators is realized through optical fibers. According to the method, the contradiction between a large-scale cascaded H-bridge system and high-frequency switch simulation is solved through heterogeneous step lengths, a parallel simulation architecture and a flexible signal receiving mechanism, and accurate real-time simulation of the cascaded H-bridge PET system is realized.

An energy efficiency optimization control method for a single-stage isolation matrix converter is proposed. This method calculates the input current vector magnitude of a three-phase single-stage isolation matrix AC-DC converter, derives the duty cycle expression, minimizes the current stress in the three-phase single-stage isolation matrix AC-DC converter, achieves soft switching, derives the full-bridge phase shift angle expression based on the per-unit value of the input current, designs a single-loop voltage control circuit, does not sample the input current, achieves unity power factor, and keeps the input current sinusoidal.

The invention discloses a six-phase motor torque ripple suppression method and device based on control deviation compensation, and relates to the technical field of six-phase motor fault-tolerant control, and the method comprises the steps: collecting current signals of each phase, carrying out the vector space decoupling transformation, obtaining an alpha-beta subspace current, calculating the circularity of a current vector track, and subtracting 1 from the circularity of the current vector track to obtain a circularity deviation amplitude; a gradient descent method is used to update the leakage inductance parameter of the motor at the controller side on line, and the real-time deviation compensation voltage is calculated and superposed with the real-time control voltage to obtain the deviation compensation control voltage. The roundness of an alpha-beta subspace current vector track is introduced to serve as a torque ripple evaluation index, leakage inductance parameters which are difficult to measure and change along with working conditions are subjected to online self-adaptive updating by adopting a gradient descent method, compensation failure caused by inaccurate parameters is avoided, and the parameters are applied to a zero-sequence subspace to offset control deviation, so that the torque ripple evaluation accuracy is improved. Second harmonic current caused by control deviation can be effectively suppressed, torque ripple is remarkably reduced, and the stability and output quality of fault-tolerant operation of the motor are improved.

The invention relates to a method for controlling the operation of a separately excited machine, in particular of a motor vehicle, in the event of a fault, comprising the following steps: detecting a current current vector (6), in particular a stator current vector and / or a current angle, in particular a stator current angle, of the separately excited machine; -determining a varying voltage vector (12) as a function of the detected current vector (6) and / or current angle; changing the current operating point of the separately excited machine to a changed operating point by setting the changing voltage vector (12), the power resulting from the change of the operating point being equal to or less than the power loss, in particular the thermal power loss, of the separately excited machine; and carrying out the active short-circuit state starting from the changed operating point.

The application discloses an analysis method of LCC-LCC compensation topology based on a Fourier series model in a TPS mode. The application comprises the following steps: A. inputting working conditions and parameters of a resonant cavity of LCC-LCC under a TPS control strategy; B. modeling a voltage excitation source of a phase-shifted full bridge; C. modeling characteristics of a circuit system; D. expressing and calculating a current vector of a wireless charging system under the TPS control strategy; and E. calculating power of the TPS wireless charging system. The application is applied to the technical field of power electronics.

The invention specifically relates to a dual three-phase permanent magnet synchronous motor winding fault diagnosis and positioning method, and belongs to the technical field of motor fault diagnosis. Comprising the following steps: firstly, collecting armature current and carrying out clark conversion to obtain current components of planes of two sets of windings, calculating a current difference value of the corresponding component, extracting a half-cycle effective value as a fault diagnosis characteristic, and calculating a phase angle of a current vector as a fault positioning characteristic; the method provided by the invention can diagnose whether the winding has a fault on line and determine the type and position of the fault. The method disclosed by the invention is of great significance for improving the operation reliability and the maintenance convenience of the dual three-phase permanent magnet synchronous motor.

The application relates to a power motor fault diagnosis method and device, computer equipment, a storage medium and a computer program product. The method comprises the following steps: controlling the cross-axis current of a power motor to be a first preset value, the direct-axis current to be a second preset value, and controlling the electric angle of the power motor to increase from a first angle to a second angle; during the process that the electric angle increases from the first angle to the second angle, acquiring the cross-axis voltage and the direct-axis voltage collected respectively at each electric angle; according to the cross-axis voltage and the direct-axis voltage corresponding to each electric angle, calculating the actual included angle between the voltage vector and the current vector; acquiring the theoretical included angle between the voltage vector and the current vector; comparing the actual included angle with the theoretical included angle, and determining the fault diagnosis result of the power motor according to the comparison result. The method can improve the accuracy of power motor fault diagnosis.

The application discloses a control method and system of a double-armature flux switching motor. The control method comprises the following steps: obtaining the stator and rotor currents and performing coordinate transformation to obtain the d-axis actual current and the q-axis actual current of the stator and rotor; calculating the d-axis reference voltage of the stator and rotor according to the difference between the d-axis reference current and the d-axis actual current of the stator and rotor respectively, and calculating the q-axis reference voltage of the stator and rotor according to the difference between the q-axis reference current and the q-axis actual current of the stator and rotor respectively; calculating the first control quantity in the synchronous rotating coordinate system of the stator and rotor according to the d-axis and q-axis reference voltages of the stator and rotor, the decoupling matrix and the d-axis and q-axis feedforward voltages of the stator and rotor respectively, and performing coordinate transformation to obtain the second control quantity in the stationary coordinate system of the stator and rotor; and controlling the double-armature flux switching motor according to the second control quantity. The application can realize high-performance current control of the motor by decoupling control of the current vectors of the stator and rotor.