519 results about "Vector control" patented technology

The invention discloses a real-time monitoring and early warning method and system for a variable-frequency energy-saving motor, and the method comprises the steps: collecting the operation parameters of the motor in real time through a multi-source sensor group disposed on the variable-frequency energy-saving motor; determining a current motor working condition according to the motor operation parameters, and determining a real-time load rate of the motor based on a preset load working condition correlation model; acquiring historical operation data of the variable-frequency energy-saving motor, and generating a dynamic threshold curve according to the historical operation data; generating a dynamic threshold according to the motor operation parameters and the dynamic threshold curve, performing health degree calculation on the variable-frequency energy-saving motor based on the dynamic threshold, and determining a life prediction value of the variable-frequency energy-saving motor according to the health degree; and when the life prediction value of the variable-frequency energy-saving motor is lower than a preset value, automatically triggering a frequency reduction instruction, switching to a field-oriented vector control mode, and synchronously generating an alarm and equipment health file of the variable-frequency energy-saving motor.

The embodiment of the invention discloses a vector control method and device for a steering wheel chassis. The method at least comprises the steps that the target speed and the target angular speed of a steering wheel chassis at the next moment are obtained; the target speed comprises a target transverse speed and a target longitudinal speed; obtaining pre-stored size parameters of each steering wheel; the size parameters at least include the distance between the mass center of the steering wheel chassis and each steering wheel in the coordinate system of the steering wheel chassis in the coordinate axis direction, and the original point of the coordinate system of the steering wheel chassis is located at the mass center of the steering wheel chassis; and calculating a control angle of a steering motor and a control speed of a driving motor corresponding to each steering wheel at the next moment based on a pre-constructed motion planning control strategy according to the target speed, the target angular speed and the size parameters of each steering wheel. By applying the scheme provided by the embodiment of the invention, the steering wheel chassis can be flexibly controlled.

The invention discloses a permanent magnet synchronous motor current dynamic coupling correction method, which comprises the following steps of collecting motor three-phase stator current, performing Clark transformation to obtain a current value under an alpha-beta static coordinate system, and meanwhile, collecting through a position sensor to obtain an electrical angle true value; performing low-pass filtering calculation on the current value under the alpha-beta static coordinate system to obtain a filtering current value, and performing operation through a sliding-mode observer and a PLL phase-locked loop to obtain an electrical angle observation value; calculating to obtain a compensation adjustment coefficient according to the true value and the observed value of the electrical angle, and further calculating to obtain a current value after phase offset compensation; and performing complementary filtering calculation on the filtering current value and the current value after phase offset compensation to obtain a coupling correction current value for current loop calculation, inputting the coupling correction current value into a motor control current loop PID algorithm, and generating a PWM driving signal to drive a motor in combination with vector control. According to the method, the problems of high-frequency interference and phase deviation of current sampling can be solved, so that the motor control efficiency and the dynamic performance are improved.

The invention discloses a motor control method and device, electronic equipment and a storage medium. The method comprises the following steps: acquiring a three-phase current, converting the three-phase current into a total current of a current period in a static coordinate system, and extracting a high-frequency current of the current period from the total current; extracting a rotor position and a rotor rotating speed from the high-frequency current; compensating the rotor rotating speed by using the expected rotating speed to obtain a quadrature-axis expected current; converting the total current into a quadrature-direct axis coordinate system, extracting a fundamental frequency current from the quadrature-direct axis coordinate system, compensating the fundamental frequency current by using a quadrature axis expected current and a direct axis bias current to obtain a first expected voltage, superposing the first expected voltage and a direct axis high-frequency voltage, and performing coordinate system conversion on a superposition result by using a rotor position to obtain a second expected voltage; obtaining a second expected voltage under the static coordinate system; and the three-phase current of the current period is controlled according to the second expected voltage to drive the motor, so that the motor has more obvious salient polarity through the direct-axis bias current, and vector control over the electrode is achieved.

The invention discloses an EHA drive control system three-closed-loop control system and a dynamic hysteresis compensation method. The technical problems that an existing electro-hydrostatic actuator is large in hydraulic hysteresis error, poor in dynamic response and insufficient in environmental adaptability are solved. The method comprises a three-stage control structure of a position control loop, a speed control loop and a current control loop, the position control loop introduces load disturbance feed-forward compensation based on a state observer, the speed control loop adopts an adaptive sliding mode control strategy, the current control loop executes a decoupling vector control algorithm, and the load disturbance feed-forward compensation is realized. And a dynamic hysteresis compensation model based on historical input and disturbance estimation is established in the controller. According to the system, the servo motor, the gear pump, the hydraulic cylinder and the sensor module are integrated into an integrated drive control structure, and the effects of improving the control precision, reducing the response time delay and correcting the hydraulic hysteresis error are achieved.

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 provides a motor parameter identification method and device, equipment and a storage medium, and relates to the technical field of motors. The method comprises the following steps: respectively constructing a state matrix and an output equation of a motor; constructing a parameter matrix containing to-be-identified parameters, wherein the to-be-identified parameters at least comprise permanent magnet flux linkage and quadrature-axis inductance; performing iterative recursion on the parameter matrix based on the model equation, the state matrix and the output equation of the least square method; and determining an estimated value of the to-be-identified parameter as a target motor parameter in response to determining that the to-be-identified parameter meets a convergence condition and / or the number of iterations of the parameter matrix reaches a preset value. Therefore, motor parameters such as permanent magnet flux linkage and quadrature-axis inductance can be accurately identified, vector control is more accurate under the condition that the motor parameters mainly change due to motor temperature rise, magnetic saturation and running state change, the vector control can be realized under the auxiliary condition of existing load equipment, and extra cost does not need to be increased.

The invention discloses a wireless cooperative control system and method for a multi-node brushless motor, and the system employs a layered architecture design, and comprises a main control layer, a drive layer, a communication layer, and a software layer. The master control layer is composed of a master node and serves as a task instruction scheduling center of the system, the driving layer is composed of N slave nodes, and N is larger than or equal to 3; the driving layer drives the brushless motor by executing an FOC vector control algorithm and monitors the state of the brushless motor; the communication layer constructs a star network topology based on an ESP-NOW protocol, a direct communication link is established between a master node and N slave nodes, and multi-node cooperative control is realized by adopting a dynamic channel switching mechanism and a timestamp alignment mechanism; and the software layer establishes communication with the main control layer through a USART serial port, receives the state data of the brushless motor of each slave node concentrated by the main control layer, and sends an instruction to the main control layer at the same time. Not only are wireless multi-node synchronization and anti-interference problems solved, but also high-precision motor control is realized.

The invention belongs to the technical field of power system operation and motors, and particularly relates to an energy storage type phase modifier control method which comprises the steps that a rotating shaft of a double-fed motor is connected with a flywheel to serve as an energy storage type phase modifier; the rotor winding is connected to a power grid through an excitation system and a transformer in sequence, and the excitation system is electrically connected by a reactor, a back-to-back converter and a filter in sequence; the stator winding is directly connected to a power grid; the control system decouples reactive power and active power, vector control is carried out on exciting current to absorb or release power, and reactive power-voltage support and active power-frequency support of the power grid are completed. The method overcomes the defects that a traditional direct-current excitation phase modulation mode can only modulate phase and cannot modulate frequency, or is cumbersome and slow in response. The system can meet the requirement of wide-range variable-speed operation, quickly store / release a large amount of rotor kinetic energy, inhibit the voltage and frequency fluctuation of a power grid, and is especially suitable for stations with high new energy occupation ratio. The invention also provides a non-transitory readable recording medium storing the program of the method and a system comprising the medium, and the program can be called through a processing circuit to execute the method.

The invention discloses an outer rotor permanent magnet synchronous motor encoder data correction method and device, and aims to solve the problem of poor precision of encoder position detection of an existing outer rotor permanent magnet synchronous motor. The method comprises the following steps: acquiring a current motor position and a motor position in a previous sampling period through an encoder to obtain a first position increment; estimating the current rotating speed of the motor according to the output current of the permanent magnet synchronous motor; obtaining a second position increment according to the current motor rotating speed and the sampling period; and comparing the first position increment with the second position increment to judge whether the data collected by the encoder is abnormal or not, and correcting the abnormal data. The method is simple and reliable, the requirement for the encoder installation process is low, abnormal data errors caused by encoder installation errors or noise interference can be eliminated, the accuracy of encoder detection data is effectively guaranteed, and the stability of closed-loop vector control of the permanent magnet synchronous motor is effectively improved.

The invention provides a permanent magnet frequency conversion double-sine modulation swimming pool pump energy-saving control method, and relates to the technical field of motor driving and control, and the method comprises the steps: building a double-sine carrier modulation model of a permanent magnet synchronous motor, and calculating a dynamic harmonic suppression factor and a double-sine modulation depth in real time; feedforward compensation is carried out on the inverter current based on the DHSIF, and a q-axis current reference value is generated by adopting double-closed-loop vector control; dynamically adjusting a carrier frequency range according to the DSMD, generating double sine carriers with a phase difference of pi / 3, and superposing the double sine carriers into a composite modulated wave; the modulation wave amplitude is corrected through a DHSIF, and fifth and seventh harmonics are eliminated in combination with an adaptive filtering algorithm; a carrier wave ratio is dynamically optimized to generate a PWM signal, and a transient compensation mechanism is triggered to correct a voltage instruction when a load suddenly changes; and an energy efficiency optimization database is constructed to call historical optimal parameters, and nonlinear mapping of DHSIF and motor characteristics is established through parameter self-tuning. According to the invention, cooperative control is realized through dynamic harmonic suppression, modulation depth optimization and intelligent thermal protection.

The invention discloses a sampling current bias error compensation method for a permanent magnet synchronous motor. The sampling current bias error compensation method comprises the following steps: step 1, acquiring the shortest duration required by sampling current bias; 2, the permanent magnet synchronous motor is controlled in a vector mode; 3, the zero-voltage vector holding time is obtained, a sampling current compensation mode is selected according to the zero-voltage vector holding time and the shortest time needed by sampling current bias, and the compensation mode comprises the steps that when the zero-voltage vector holding time is larger than or equal to the shortest time needed by sampling current bias, a direct compensation mode is carried out; when the zero voltage vector holding duration is smaller than the shortest duration required by sampling current bias, terminal voltage integration is carried out to judge a compensation mode; and 4, performing vector control on the permanent magnet synchronous motor through the compensated sampling current, and performing closed-loop control. According to the invention, the operation precision of the permanent magnet synchronous motor can be improved, and the motor operation system can adapt to the dynamic change of the offset error.

The invention discloses a low-harmonic high-voltage speed regulation system based on a multi-pulse phase-shifting transformer, and particularly relates to the field of power electronic technology and motor speed regulation, which is characterized in that the primary side of the multi-pulse phase-shifting transformer is in star connection, and N groups of windings on the secondary side are in extended delta connection, so that phase difference is realized; the multi-path low-voltage alternating current is converted into multi-path low-voltage alternating current and low-order harmonics are High voltage is output through cascade H-bridge topology series connection, and reliable conversion is guaranteed through rectification filtering inversion and device redundancy design; the motor control module collects signals through multiple sensors, and PWM drive signals are generated through a vector control algorithm and coordinate transformation. The harmonic detection and compensation module detects harmonic waves based on an FFT algorithm, and injects a reverse compensation component through a modulation strategy to offset the harmonic waves; and the auxiliary protection module integrally realizes low-harmonic and high-precision high-voltage motor speed regulation through multi-dimensional monitoring and hardware protection.

The invention provides a zero-voltage ride-through control method for a self-synchronizing voltage source doubly-fed wind turbine generator, which comprises the following steps that: when the self-synchronizing voltage source doubly-fed wind turbine generator is in a transient state, a grid-side converter adopts vector control, and a rotor-side converter adopts additional virtual impedance and annular current limiting; the transient overcurrent of the grid-side converter and the rotor-side converter can be effectively suppressed, so that the continuous operation capability of the wind turbine generator in the zero-voltage ride-through period can be maintained; meanwhile, by improving the transient capacity and the transient reactive current amplitude of the converter, the transient voltage supporting capacity of the wind turbine generator during the zero voltage ride-through period can be effectively provided; when the self-synchronizing voltage source doubly-fed wind turbine generator set is in a transient state, overvoltage of direct-current bus voltage is limited by a Chopper circuit, active-priority current amplitude limiting control is adopted by a grid-side converter, parameters of a current inner ring PI controller of a rotor-side converter are optimized, energy balance of a direct-current side can be achieved in the zero-voltage ride-through period, and stability of the direct-current bus voltage is maintained.

The invention provides a multi-permanent magnet synchronous motor rotating speed tracking consistency control method based on local information interaction, and relates to the technical field of multi-permanent magnet synchronous motor rotating speed cooperative control. A vector control subsystem of a single motor in a multi-permanent magnet synchronous motor rotating speed cooperative control system is regarded as an intelligent agent, the intelligent agent interacts rotating speed information with a neighbor intelligent agent according to a designed communication topology, and expected q-axis current is updated in real time through a rotating speed tracking consistency protocol; therefore, the rotating speed tracking consistency is realized based on the local rotating speed information, and a rotating speed tracking controller does not need to be independently designed, so that mutual restriction of rotating speed tracking performance and synchronization performance can be avoided; in addition, distributed control has the advantages of simple structure, high flexibility, high expansibility and the like; the disturbance observer designed by the invention has continuous observation output values, and the system buffeting can be further weakened and the system robustness can be enhanced by utilizing the observer to estimate unknown disturbance and carry out feedforward compensation.

The invention discloses a multi-actuator full-vector control method and related equipment, and the method comprises the steps: obtaining vehicle motion state information and road adhesion information, the vehicle motion state information is obtained based on a vehicle-mounted sensor and / or a vehicle state estimation module, and the road adhesion information is obtained based on a road identification module; acquiring steering wheel angle information based on the vehicle motion state information to determine an expected yaw velocity tracking sequence; upper-layer control information is determined based on the vehicle motion state information, the road surface attachment information and the expected yaw velocity tracking sequence, and the upper-layer control information comprises an additional yaw moment, an additional roll moment, an additional pitch moment and a rear wheel steering angle; and lower-layer control information is determined based on the vehicle motion state information, the road surface attachment information and the upper-layer control information, the lower-layer control information is used for deploying a vehicle actuator, and the lower-layer control information comprises additional driving torque and suspension active force.

The invention discloses a permanent magnet synchronous motor non-inductive vector control method based on SOGI-QNPLL. The method comprises the following steps: constructing a current state equation of a permanent magnet synchronous motor under a two-phase static coordinate system; constructing a new switching function, and designing and improving a full-order sliding mode observer according to the new switching function and the current state equation; the convergence of the improved full-order sliding mode observer is analyzed, and the value ranges of the gain m and the gain n of the improved full-order sliding mode observer are calculated; analyzing the improved full-order sliding-mode observer, and discretizing the improved full-order sliding-mode observer by adopting a forward Euler method; establishing a phase-locked loop (PLL), performing normalization design on the phase-locked loop, and establishing a normalized phase-locked loop (QNPLL); a second-order generalized integrator (SOGI) is established and discretized by adopting a bilinear transformation method, the discrete SOGI is combined with the QNPLL to form SOGI-QNPLL, and the SOGI-QNPLL is utilized to estimate the rotor position. According to the SOGI-QNPLL provided by the invention, the rotor position can be accurately extracted, the observation precision is remarkably improved, and the reliability and performance of the system are enhanced.

The invention discloses a hybrid excitation synchronous motor control method and system, and belongs to the technical field of motor control. The problem that a motor control system can operate at high precision when a position sensor breaks down is mainly solved. The method comprises the following steps that when a position sensor breaks down, a system is switched to an active short circuit protection (ASC) mode, and operation of a motor is controlled by giving instruction values of d-axis current and q-axis current in the mode; then, in an ASC mode, estimating a rotor angle through a voltage equation in a static coordinate system, so as to obtain an electrical angle of a rotor; after the rotor angle estimation is completed, the system is switched from the ASC mode to the vector control mode without the position sensor, and the d-axis voltage and the q-axis voltage are adjusted in the mode, so that the motor can be continuously and accurately controlled and stably run. The invention provides an efficient and safe motor control method, and the safety and reliability of the electric vehicle under the condition of sensor fault are effectively improved.

The invention provides a permanent magnet synchronous motor frequency conversion soft start and grid connection device and a control method. The device comprises a power supply grid (1), a permanent magnet synchronous motor (2), three-phase contactors (3), (4) and (5), a variable frequency controller composed of a rectifier (6), an inverter (7) and a control panel (8), a voltage sampling module (9), a current sampling module (10) and a filter inductor (11) at the output end of the inverter. One end of the three-phase contactor (3) is connected with a three-phase inlet wire of the power supply grid (1), and the other end of the three-phase contactor (3) is connected with the input end of the rectifier (6); one end of the three-phase contactor (4) is connected with the output end of the inverter (7), and the other end of the three-phase contactor (4) is connected with the input end of the motor (2); and one end of the three-phase contactor (5) is connected with a three-phase inlet wire of the power supply grid (1). VF open-loop pre-synchronization control is introduced in advance in vector control, power grid synchronization conditions are simulated, a motor is enabled to actively match power grid magnetic field parameters before grid connection, smooth transition of a control mode is realized, and large impact current and electromechanical oscillation are avoided.

The invention discloses a hub motor vector control method based on an improved grey wolf particle swarm algorithm, and the method comprises the steps: building a mathematical model of a hub permanent magnet synchronous motor, building a double-closed-loop vector control simulation model containing a speed loop and a current loop in Simulink based on the mathematical model, and selecting a speed loop PID controller as a to-be-set object; improving the original grey wolf particle swarm algorithm to obtain an improved grey wolf particle swarm hybrid algorithm; and performing iterative optimization on the three parameters Kp, Ki and Kd of the speed loop PID controller through the improved grey wolf particle swarm hybrid algorithm, and outputting the finally obtained global optimal solution q as the optimal values of the three parameters Kp, Ki and Kd of the speed loop PID controller to complete the hub permanent magnet synchronous motor vector control.

A driving circuit board of a vector control permanent magnet synchronous motor controller comprises a microprocessor integrated with an FOC algorithm; a bus voltage acquisition unit; a current acquisition unit; a rotary transformer, Hall and photoelectric speed sensor signal acquisition unit; a man-machine interaction unit; a six-path PWM driving unit; the connector is connected with a reliable monitoring unit. The driving circuit board provided by the utility model can be matched with three-phase full-bridge inversion power circuit boards with different power levels to quickly form a permanent magnet synchronous motor controller with different power levels. According to the utility model, the microprocessor is adopted to acquire various feedback signals such as speed, current, temperature, fault and the like and generate six paths of PWM driving waveforms, various types of speed acquisition units and communication units are integrated, the compatibility is better, the connector is added to connect the reliable monitoring unit, the safety is better, and the man-machine interaction unit is combined, so that control parameters can be adjusted, and the cost is reduced. And the permanent magnet synchronous motor supports various powers, voltages and electrical parameters.

The invention relates to an AC motor synchronous modulation method based on a phase-locked loop and a PWM generator, and belongs to the technical field of motor control, and the method comprises the steps: determining a voltage phase angle outputted by an AC motor based on an output voltage of vector control of the AC motor, and converting the voltage phase angle into a synchronous phase angle of a carrier wave based on a carrier wave ratio; the synchronous phase angle is used for determining a sine input signal of the phase-locked loop; determining a cycle count increment adjustment value of the carrier based on the sinusoidal input signal; and correcting the cycle count increment value of the carrier based on the cycle count increment adjustment value. According to the alternating current motor synchronous modulation method based on the phase-locked loop, the period ratio and the phase relation of the carrier wave and the modulation wave are fixed, so that the harmonic content of the output voltage and the harmonic content of the output current are kept consistent in the synchronous modulation process, extra harmonic voltage and current cannot be generated, and overall harmonic treatment of a system is facilitated.

A method for suppressing current harmonics of a permanent magnet synchronous motor relates to the field of permanent magnet synchronous motor control, and comprises the following steps: Step 1: designing a model reference adaptive system, including three parts: a reference model, an adjustable model and an adaptive module, to realize online identification of time-varying parameters of resistance and inductance. Step 2: designing a harmonic injection system, extracting 6x±1 times current harmonics (x is a natural number), and calculating harmonic voltage compensation. Step 3: injecting the harmonic voltage compensation calculated in step 2 into a permanent magnet synchronous motor vector control model to suppress 6x±1 times current harmonics. The present invention can identify key time-varying parameters of the harmonic injection link online during the operation of the permanent magnet synchronous motor, improve the harmonic suppression effect under time-varying motor parameters, reduce the vibration and noise of the permanent magnet synchronous motor, and realize it through software optimization, without adding additional hardware and cost, and is easy to realize.

The invention relates to the technical field of motor control, and discloses a vector control application of a direct drive motor, which comprises the following steps: S1, collecting stator current, rotor speed and bus voltage signals of the motor, and carrying out filtering preprocessing on the collected signals; and S2, constructing a self-adaptive flux linkage observation model, estimating a stator flux linkage in real time based on stator current and bus voltage signals in combination with rotor rotating speed information, and correcting stator resistance and inductance parameters through a model reference self-adaptive algorithm. According to the method, the motor parameters are corrected in real time through the self-adaptive flux linkage observation model, parameter drift caused by factors such as temperature change and magnetic saturation is effectively counteracted, and the accuracy of flux linkage estimation is improved; the improved PI regulator realizes online self-tuning of control parameters through a fuzzy control algorithm, can quickly adapt to changes of dynamic characteristics of the motor, and shortens the regulation response time of flux linkage and torque; and the resistance of the system to external interferences such as load fluctuation, power supply voltage change and the like is enhanced.

The embodiment of the invention discloses a load disturbance suppression device of an electric fuel pump. The load disturbance suppression device is characterized in that phase current in operation of a permanent magnet synchronous motor is acquired through a motor phase current measurement module and is converted into a phase current digital signal; measuring the position of a motor rotor in real time through a motor rotor position and rotating speed measurement module, and calculating the rotating speed of the motor rotor; the phase current alternating current-direct current conversion module converts the phase current digital signal into current i alpha and current i beta in a two-phase static coordinate system through clark conversion, the current i alpha and the current i beta are comprehensively subjected to Park conversion with a motor rotor position theta, and the current i alpha and the current i beta are converted into direct-axis current id and quadrature-axis current iq in a two-phase rotating coordinate system; on one hand, the control algorithm module carries out high-bandwidth closed-loop control on the rotating speed of a motor rotor through the instruction rotating speed of the motor and the actual rotating speed of the motor rotor, and outputs a quadrature-axis voltage Uq; on the other hand, direct-axis current closed-loop control is carried out by taking 0 direct-axis current as an instruction and taking the direct-axis current id as feedback, and direct-axis voltage Ud is output; the space vector control module converts the direct-axis voltage Ud and the quadrature-axis voltage Uq into voltages Ualpha and Ubeta under a two-phase static coordinate system through inverse park conversion, converts the Ualpha and the Ubeta into motor three-phase switch PWM duty ratios through a space vector control algorithm and transmits the motor three-phase switch PWM duty ratios to the power driving module; and the power driving module drives an internal power device to act according to the PWM duty ratio output by the space vector control module so as to convert direct current bus power supply into motor phase alternating current. According to the technical scheme, the problems that the environmental adaptability of the fuel oil system is reduced and the electromagnetic compatibility and the electrical seaworthiness of the fuel oil system are low due to an existing load disturbance suppression mode are solved.

The invention discloses a high and low temperature automatic test method and system for a transmit-receive vector control module, and a medium, and belongs to the technical field of chip test. The method comprises the steps that an upper computer selects a test channel and test items and configures test parameters; the upper computer is connected with the instrument according to the test items and performs different presetting according to the test types; starting an automatic test, sending a matrix switch control instruction by the upper computer, performing switch matrix channel switching and COM port switching, and then executing SIP power-up and pole writing; executing a corresponding test process according to the test type; and after the test is completed, the SIP is powered off, poles are written, test data are stored, then whether all channels of the SIP are tested or not is judged, if not, the next channel is tested, and if all the channels are tested, all the test data are exported. Through the full-automatic testing process, manual intervention is reduced, and the testing efficiency of a production line can be greatly improved. In a high and low temperature test environment, the equipment can carry out continuous multi-channel test.

The invention relates to the technical field of automatic control, and provides a control method and a control device of a hydraulic system and engineering machinery, vector control is used for directly regulating and controlling a hydraulic pump without depending on an intermediate link of the hydraulic system, the response is at a millisecond level, and when a load suddenly changes, the torque of a motor can be quickly limited, power overshoot is avoided, and the reliability of the hydraulic system is improved. The motor and battery system is protected, closed-loop control over the rotating speed is carried out, precision is higher, the torque upper limit is controlled by directly inputting the required power, the power is limited to be kept constant, the method is suitable for various complex scenes, high-speed and large-flow operation of the variable pump during light load can be achieved, the speed requirement is met, and the working efficiency is improved. And low-speed small-flow operation is achieved during heavy load, the safety requirement is met, a constant displacement pump and / or a variable displacement pump can be compatible at the same time, the problem that constant-power control cannot be achieved through the constant displacement pump is solved, and economy and environment friendliness are achieved.

The invention relates to a gas vane thrust vectoring device servo driving scheme of a plug nozzle engine, which is specifically divided into a gas vane, a fixing device of the gas vane and an integrated electro-hydraulic servo control system, so that the gas vane is fixed on the surface of a plug cone, and the gas vane can be controlled to act at a specified angle according to requirements. In order to enable the gas vanes to generate large axial force and to have small axial loss at the same time, the gas vanes are evenly arranged at the 50% length position of the plug cone in the circumferential direction. In order to solve the problems of feasibility and reliability of axial fastening of the gas rudder shaft on the curved surface of the plug cone, a split type design and dual-bearing fastening are used. In order to guarantee the transmission rotation stability and accuracy of the gas vane, a servo motor is used for driving a hydraulic cylinder, and a double-rocker mechanism is formed to achieve driving. In order to ensure the flexibility and reliability of the thrust vector of the engine, a unit integrated electro-hydraulic servo system is adopted, so that each gas vane can independently realize vector control. The invention has the advantages of high structural reliability, high control accuracy and high vector maneuverability.

The invention relates to the technical field of motor control in the intelligent power grid industry, and discloses a space vector control method for a twelve-phase permanent magnet synchronous motor flywheel energy storage system, a control circuit of the flywheel energy storage system relates to power electronic components such as various semiconductor field-effect tubes, and the space vector control method is used for high-precision control of a motor. Comprising the steps of S1, twelve-phase space vector decoupling fault-tolerant control, S2, high-order harmonic energy recovery closed loop, S3, quantum annealing parameter optimization layer, S4, flux linkage adaptive observer network construction and S5, 18-dimensional switching vector table construction. According to the scheme, through multi-reference coordinate system transformation and a redundant phase reconstruction algorithm, rapid fault-tolerant response of the twelve-phase motor during a single-phase or two-phase fault is realized, a current path is dynamically recombined during the fault, a negative-sequence current compensation ring is combined, torque ripple is effectively suppressed, and the reliability of the motor is improved under a high-speed charging and discharging working condition. The harmonic distortion rate is detected in real time through the sliding window FFT, the bandwidth of the controller is adjusted, and the problem that the dynamic response of a traditional fault-tolerant strategy is insufficient is solved.

The invention belongs to the technical field of automation control, and particularly relates to a control parameter optimization method and system for a multistage reaction kettle, and the method comprises the steps: collecting key operation data of a series multistage reaction kettle at each moment in real time, and constructing an initial temperature sequence and an initial valve opening sequence after standardization and adaptive filtering denoising; indexes such as temperature fluctuation standard deviation are calculated based on the initial temperature sequence, the temperature deviation degree is obtained through normalized weighted fusion, and parameters such as the Arrhenius law and the actually measured temperature are combined to construct a reaction nonlinear strength index; on the basis of the index coupling initial valve opening degree sequence change rate, a model vector self-adaptive correction coefficient is obtained in combination with parameters such as a smooth factor; and correcting a basic step response vector controlled by the dynamic matrix by using the coefficient, solving an optimal valve opening adjustment amount, calculating an execution value, and outputting the execution value to an execution mechanism to complete regulation and control, thereby realizing full-cycle optimization of control parameters. According to the invention, the control accuracy of the multi-stage reaction kettle is improved.