232 results about "Integral controller" patented technology

Systems and methods for autonomous-vehicle navigation using a large vision language model (LVLM) to understand road situations and construct a guide for the autonomous vehicle's planning system and Model Predictive Path Integral (MPPI) controller. The LVLM analyzes image data from driving scenarios and generates driving suggestions. The LVLM is pre-trained on a dataset of image-pairs and fine-tuned with specific driving scenarios to optimize performance.

A half-bridge driver circuit periodically repeats switching cycles by closing a first FET via a first drive signal, detecting an instant when a current flowing through the first FET reaches a threshold and then opening the first FET and closing a second FET via a second drive signal. An error amplifier generates a control voltage by comparing a feedback signal with a reference signal, and a variable current generator generates a first current as a function of the control voltage. The error amplifier includes a proportional-integral controller, and a slope compensation circuit that generates a second current as a ramp signal. The threshold is generated by subtracting the second current from the first current. In response to detecting the instant, the second current is sampled and a signal indicative of the threshold is generated by subtracting the sampled second current from the first current.

The invention discloses a control method for a composite direct-current power synchronization grid-following type converter, and belongs to the technical field of wind power grid-connected converter control. The problem that in the prior art, a traditional converter control method based on network tracking type control is low in stability due to subsynchronous oscillation easily generated under a weak power grid is solved. According to the method, the direct-current power of the grid-following type converter is collected and sequentially passes through a lead / lag link and an integral controller, then an obtained compensation item is introduced to a d-axis current reference instruction value output by a direct-current voltage loop, d-axis current and q-axis voltage are influenced, the influenced q-axis voltage serves as phase-locked loop input, and the phase-locked loop is connected with a phase-locked loop. An output grid-connected angle is directly controlled by a proportional-integral controller of a phase-locked loop link, and an angle small signal value additionally introduced by composite direct-current power synchronization is equivalent to that a network-forming type direct-current inertia synchronization link is introduced into a network-following type phase-locked loop. The method improves the adaptability of the following network type control system to the weak power grid, and can be applied to converter control.

Disclosed herein are systems and methods for sliding mode control enabled hybrid energy storage. In a specific embodiment, the system can include: a photovoltaic power generation unit; a hybrid energy storage system, where the hybrid storage system can include a battery, a supercapacitor, where the supercapacitor provides excess power demand based on different loading conditions, and a rate limiter; a sliding mode controller, where the slide mode controller controls a current in a hybrid energy storage system; a supercapacitor charging control; and a proportional integral controller. In a specific embodiment, the method can include: decoupling an average and transient hybrid energy storage system current with a single rate limiter, where the decoupling includes a battery discharge rate; regulating a battery current with a first sliding mode controller; and regulating a supercapacitor current with a second sliding mode controller, where a supercapacitor provides excess power demand.

The invention discloses a coaxial double-switch reluctance motor torque ripple minimization control method, which comprises the following steps: establishing a unified model for two switch reluctance motors, obtaining a reference torque through a proportional integral controller after making a difference between a reference rotating speed and an actual rotating speed, and establishing a phase current prediction model according to a phase voltage equation of the switch reluctance motors, based on the predicted current and the predicted angle, establishing a torque prediction model in a positive voltage excitation and zero voltage follow current mode in the conduction interval of each phase winding, and establishing a torque prediction model in a negative voltage demagnetization mode in the turn-off interval of each phase winding to obtain predicted torques of each phase winding in the conduction interval and the turn-off interval; and establishing a unified evaluation function by using the predicted torque and the reference torque of each phase winding of the two switched reluctance motors, and selecting an optimal switching state which enables the evaluation function to be minimum, thereby realizing the torque pulsation minimization control of the coaxial double-switched reluctance motor. The torque ripple minimization control method of the coaxial double-switch reluctance motor is not influenced by the phase difference of the double motors and the conduction range of each phase winding, can be easily expanded to a double-switch reluctance motor driving system with any phase number, and has good application prospect and engineering value.

The invention discloses a doubly-fed wind power grid-connected system low-frequency oscillation control method and device, a storage medium and an electronic device, and the method comprises the steps: calculating a reactive power given value of additional damping control based on an angular velocity difference and an additional damping controller transfer function under the condition that the doubly-fed wind power grid-connected system generates low-frequency oscillation, wherein the reactive power given value is used for providing additional damping for the low-frequency oscillation frequency to suppress the low-frequency oscillation frequency; superposing the reactive power given value to an existing reactive power reference value to obtain a target reactive power reference value; and inputting the target reactive power reference value and the actual reactive power value into a proportional-integral controller of the doubly-fed wind power grid-connected system to obtain a current control instruction output by the proportional-integral controller, and adjusting the low-frequency oscillation frequency according to the current control instruction. By adopting the technical scheme, the technical problem that the suppression effect on the low-frequency oscillation of the doubly-fed wind power grid-connected system is relatively poor is solved.

The invention relates to a mobile robot control method and system based on fault prediction, and the system comprises a multi-mode inverse kinematics solver which dynamically selects a solving mode according to the condition number of a Jacobian matrix, and carries out the solving of the Jacobian matrix according to the condition number from small to large; respectively selecting a transpose matrix method, a damping least square method and constrained quadratic programming to calculate the joint angle adjustment amount to adapt to bad working conditions such as singular configuration; the self-adaptive integral controller is used for independently adjusting position / attitude ring gain through a decoupling gain matrix, dynamically inhibiting vibration and reducing steady-state errors in combination with errors and fault indexes; and the fault prediction and reconstruction subsystem calculates a joint fault index in real time, and the index integrates torque deviation, temperature, harmonic distortion, vibration and wear data and implements hierarchical response. According to the system, the singular region stability is remarkably improved, the decoupling performance and the fault response speed are controlled, and the secondary fault risk is reduced.

The invention discloses an online iterative learning control method and device based on bidirectional frequency binary search, and belongs to the technical field of tracking control, and the method comprises the steps: building a piezoelectric positioning system, and enabling the piezoelectric positioning system to have a certain low-frequency disturbance suppression capability while keeping stable through adjusting the parameters of a proportional-integral controller; constructing a control structure combining a YK parameterization method and iterative learning control; constructing a robust filter in iterative learning control by adopting a filter design method of a parallel cascade composite structure; a differential parameter constraint space is set for each filter based on a bidirectional frequency binary search method, and iterative updating of filter parameters is driven in a time domain by taking norm minimization of system errors as an optimization target, so that continuous optimization of online disturbance suppression performance is realized. According to the method, YK parameterization and an iterative learning control structure are combined, and the stability of the piezoelectric positioning system in the whole frequency domain can be ensured.

The invention relates to the technical field of power electronics, and discloses a low-voltage ride-through control method and device for a network-forming inverter, and the method comprises the steps: monitoring the voltage drop degree of a network side; and adjusting a proportional control coefficient and an integral control coefficient of a proportional-integral controller in the grid-forming inverter according to the grid-side voltage drop degree. By adaptively adjusting the reactive power-voltage loop PI parameter, the stability of the inverter is ensured, and the reactive current response speed of the network-forming inverter during low voltage ride through is greatly improved at the same time.

The invention relates to the technical field of automatic control, and discloses a flood season water quality monitoring method and system based on a variable speed integral PID controller. The method comprises the following steps: acquiring and fusing pollutant concentration data and water level fluctuation parameters in a flood season water body through a sensor network to obtain a current water quality state index; according to the current water quality state index, time sequence change data of pollutant concentration is extracted, concentration gradient information is calculated, freshness analysis is carried out on the concentration gradient information, and weighted gradient information is generated; fusing the weighted gradient information with historical water quality monitoring data, determining a comprehensive gradient trend, and obtaining a preliminary update value of a variable speed control coefficient through a variable speed integral PID control algorithm according to the comprehensive gradient trend; if the preliminary update value exceeds a preset range, an iterative optimization algorithm is adopted to obtain a refined variable speed control coefficient, operation parameters of water quality control equipment are adjusted, and a dynamic regulation and control result of the water quality in the flood season is output, and the control accuracy of the concentration of pollutants in the water quality is improved.

The invention discloses an integral adaptive admittance control method and system, a computing control device and a storage medium. The method comprises the steps that 1, a target admittance model is established and initialized; step 2, establishing an adaptive admittance controller according to an adaptive control strategy based on environmental information identification, and deriving a reference trajectory corresponding to the target admittance model; step 3, establishing an integral admittance controller, performing steady-state error optimization processing on the reference trajectory, and generating an optimized reference trajectory; and step 4, generating a robot motion instruction according to the optimized reference trajectory. According to the method, firstly, an integral controller and online environment parameter identification are deeply fused, steady-state errors are eliminated through integral terms, dynamic environment changes are compensated through parameter identification, and stability collaborative optimization is carried out. And secondly, a reference trajectory is dynamically adjusted by introducing a force error integration link, so that the stability contradiction between integration control and an adaptive law is solved, and the unification of high-frequency response and lightweight control is realized.

The invention discloses an order-lifting sliding mode robust control method for an active-passive vibration isolation system, and belongs to the technical field of vibration isolation system control, and the method comprises the steps: introducing a feed-forward control path, predicting the vibration frequency and amplitude at a future moment based on the historical state information of a controlled system, building an overall vibration isolation target model based on the prediction, and carrying out the control of the overall vibration isolation target model. Resolving a target transfer function of an active execution mechanism through kinetic analysis of the active-passive vibration isolation system, so as to calculate a feedforward control signal; the method comprises the following steps: modeling an active-passive vibration isolation system, constructing a nonsingular terminal sliding mode surface, collecting system state error information, and generating a feedback control signal of an actual controlled system through integral controller design; a feedforward control signal and a feedback control signal are reasonably coupled and superposed to serve as control input of a controlled system. According to the order-lifting sliding mode robust control method for the active-passive vibration isolation system provided by the invention, the anti-interference capability and the stability of the active-passive vibration isolation system are improved.

The invention relates to the technical field of direct-current power transmission and transformation, in particular to a flexible direct-current system voltage active support control method and system and a medium, and the method comprises the steps: setting a reactive support reference value and an alternating-current voltage reference value as control targets; obtaining a reactive power error and an AC voltage error according to the actual measured value of the grid-connected point of the AC power grid and the control target, and processing the reactive power error and the AC voltage error to obtain a reactive support control signal and an AC voltage support control signal; a fuzzy logic controller is used to optimize and adjust the reactive power support control signal and the AC voltage support control signal, and a proportional-integral controller is used to obtain a control result; and superposing the control result and the virtual excitation end voltage target value of the virtual synchronous machine to obtain a target control quantity actively supported by the voltage of the flexible direct current system. According to the invention, active support accurate regulation and control of the AC power grid voltage are realized by combining the AC voltage fluctuation condition and the fuzzy membership coefficient, and the stability of a power system is improved.

The invention provides a grid-connected inverter stability control method and system suitable for an extremely weak power grid, and the method comprises the steps: adding a reactive power synchronization link in a phase-locked loop of a grid-connected inverter control system for an extremely weak power grid environment; the additional reactive power synchronization link comprises the following steps: acquiring a reactive power measurement value of the inverter and a set reactive power reference value, and calculating a difference value; the difference value is input into a proportional controller or a proportional-integral controller, and the angular frequency variable quantity is output; superposing the angular frequency variation to the angular frequency output by the phase-locked loop; and outputting a synchronous phase angle of the phase-locked loop through an integration link of the integrator. The reactive power synchronization link is added in the phase-locked loop of the grid-connected inverter control system under the extremely weak power grid environment, so that the oscillation stability of the grid-connected inverter is remarkably improved under the extremely weak power grid condition, the original control structure is slightly changed, the basic dynamic performance of the grid-connected inverter is not influenced, and the method is suitable for large-scale popularization and application. And a powerful guarantee is provided for safe and reliable operation of a new energy power generation system.

The invention discloses a loop current suppression and modulation method for a network-forming inverter of a heavy truck battery swap station, which comprises the following steps: after harmonic waves are suppressed by adopting a reduced-order resonance controller, converting a negative-sequence double frequency, a positive-sequence quadruple component and a frequency loop current harmonic wave component into third-order loop current harmonic waves, and considering a primary frequency modulation characteristic, carrying out secondary frequency modulation on the third-order loop current harmonic waves, and carrying out secondary frequency modulation on the third-order loop current harmonic waves; and a proportional resonance integral controller is connected in parallel to ensure harmonic suppression during frequency deviation, and meanwhile, suppressed harmonic is introduced into a hysteresis controller to correct a nearest level approximation modulation wave. Through a combined control method of direct inhibition and indirect inhibition of the circulating current, the purpose of inhibiting the circulating current is achieved. According to the invention, harmonic suppression after power frequency and frequency deviation is guaranteed, the influence of capacitor voltage ripples of the sub-modules is improved while modulation waves are corrected, and the control mode is simplified.

A grid-forming photovoltaic (PV) system and method for both islanded connection and grid-connected mode is provided. An inverter converts PV array voltage to a voltage usable as a power source to an electric power system load. Active power-frequency droop controller regulates a modulator that generates drive signals to drive the inverter. Proportional integral controller generates a frequency shift value that adjusts output of the active power-frequency droop controller to yield a phase angle control for modulation of the inverter drive signals. A control mode switch selects among a plurality of control modes for operation of the proportional integral controller. A model-free control algorithm controls the control mode switch, including a control mode (221b) for synchronizing the PV system with the grid in which proportional integral controller (a) detects offset between inverter output voltage and grid output voltage and (b) generates the frequency shift value.

The invention discloses an anti-frequency interference V2G converter low harmonic combination control method, the V2G converter is a voltage type PWM rectifier, and the method is characterized in that a voltage outer loop controller in the control method adopts a proportional integral controller, a moving average filter is directly connected in series to the output of the voltage outer loop controller; interference of periodic signals in the direct current bus voltage on the current reference signals is suppressed, so that the amplitude of the current reference signals is pure direct current quantity; in the current loop controller, a repetitive controller is used as a feedforward controller and is combined with a weighted average deadbeat controller, an insertion type composite controller is constructed, coefficients are rapidly updated by adopting a Lagrange interpolation method, and a delay value is continuously controlled, so that the repetitive controller and a moving average filter have frequency self-adaptive characteristics; the problem of performance degradation of a traditional fixed frequency controller during frequency fluctuation is solved, and the anti-frequency interference characteristic of the converter is enhanced.

The invention discloses a color register system speed increasing control method and device based on double integration and feedforward. Designing a decoupling module to obtain a monochromatic group steady-speed decoupling model; designing a speed-up open-loop experiment of the color register system, and calculating the acceleration feedforward compensation amount of the monochromatic group according to speed-up open-loop experiment data and the steady-speed decoupling model of the monochromatic group; a double-integral controller is designed as a closed-loop controller according to the steady-speed decoupling model of the monochromatic group at different operation speeds, and the designed double-integral controller can ensure the stability of the system in the acceleration process from the initial speed to the target speed; in the speed raising control process of the color register system, according to the feedback quantity of a color register error sensor at each sampling moment, a control output instruction quantity is obtained through calculation of a double-integral controller, a feed-forward compensation quantity of the system is obtained through table look-up, the control output instruction quantity and the feed-forward compensation quantity are summed and input to the decoupling module, and a decoupling output quantity is obtained; and the speed increasing instruction and a system speed increasing instruction jointly act on an execution motor to adjust the running speed of the printing roller until the speed increasing process is finished.

A distributed control system coupled to a hybrid renewable power system including an AC power section, a DC power section, and a primary load. The distributed control system includes current-controlled inverter to control flow of power between the DC power section and the AC power section using a pair of power flow control signals. The current-controlled inverter includes a proportional-integral controller to generate the pair of power flow control signals. The distributed control system includes a discrete frequency controller to perform a load frequency control of the hybrid renewable power system using a pair of load frequency control signals. The load frequency control controls frequency oscillations of the primary load. The discrete frequency controller is a discrete-time fuzzy tuned fractional-order proportional derivative controller that generates pair of load frequency control signals based on primary load frequency, desired load frequency, and rate of change of the primary load frequency.

The invention discloses a natural fault-tolerant control method for multivariable combined diagnosis of a symmetric six-phase permanent magnet synchronous motor, and the method comprises the steps: firstly, calculating an electrical angle and a mechanical rotating speed according to a motor encoder signal; secondly, obtaining a d-q plane torque current reference value through rotating speed closed-loop control; thirdly, six-phase current of the motor is collected, and the actual current value of the decoupling sub-plane is calculated; then, a d-q plane voltage reference value is obtained through a proportional-integral regulator; then, x-y plane voltage and a-b plane current are collected in real time, and an output result of the fault diagnosis module is obtained; then, x-y plane voltage reference values in different modes are selected according to output results of the fault diagnosis module; then, a six-phase voltage reference value is obtained through inverse decoupling transformation; and finally, obtaining a driving signal of a six-phase inverter according to comparison between the modulated wave and a set carrier wave, and realizing the natural fault-tolerant control method for the symmetric six-phase permanent magnet synchronous motor without current reconstruction.

The invention discloses a current source inverter power supply permanent magnet synchronous motor system control method and system, and belongs to the field of permanent magnet synchronous motor control. Establishing a discrete state space equation of the dq-axis current source inverter power supply type permanent magnet synchronous motor system by using state variable information of a control system of the permanent magnet synchronous motor system at a sampling k moment; designing a filter capacitor voltage estimator, obtaining a filter capacitor voltage estimated value, designing a feedback-integral controller, and solving a dq-axis inverter output current control instruction; three optimal current vectors closest to an inverter output current control instruction are selected, the optimal current vectors and the optimal duty ratio are calculated, an optimal switching pulse sequence is output to act on a switching tube of the current source inverter, and current control over the current source inverter power supply permanent magnet synchronous motor system is achieved. The method is high in control precision and high in dynamic response speed.

The invention discloses an island micro-grid control method and system based on adaptive virtual impedance droop control. The island micro-grid control method comprises the steps that active power and reactive power output by an inverter are measured in real time; inputting the active power and the reactive power into an improved droop controller, and generating a frequency reference value and a voltage amplitude reference value; calculating a difference value between the reactive power and a reference value, and dynamically adjusting the size of virtual impedance through an integral controller; adding the voltage amplitude reference value and the voltage compensation amount to obtain a voltage amplitude instruction, and adding the frequency reference value and the frequency compensation amount to obtain a frequency instruction; performing voltage synthesis by using the voltage amplitude instruction and the frequency instruction to generate a voltage reference value under a dq coordinate system, taking the voltage reference value as reference input of a double closed-loop control system, driving an inverter bridge after SPWM modulation, and regulating and controlling the output voltage; the system stability and reliability can be improved, reactive power loss and circulation can be reduced, the electric energy quality can be improved, and the load change coping capacity of the micro-grid can be enhanced.

The invention discloses a method and a device for improving dynamic characteristics of a two-stage resonant converter based on a virtual resistor, and in the converter, a front-stage Buck converter and a rear-stage LLC resonant converter are connected through a common DC bus; the dynamic characteristic improvement method comprises the following steps: inputting bus capacitor voltage on a common direct current bus into an active damping inner ring controller, and simulating a virtual resistor accessed to a converter through output; the difference value between the output voltage of the resonant converter and the reference voltage is input into a voltage outer loop proportional-integral controller; and subtracting the output signals of the active damping controller and the voltage outer loop controller to obtain an improved duty ratio of the preceding-stage Buck converter for controlling a switching device. By adopting the above technical scheme, through a control mode of combining voltage outer loop control and active damping inner loop control, the double-resonance peak in the voltage loop is suppressed, and the bandwidth of the voltage loop is effectively expanded.

The invention discloses an active frequency support control method for offshore wind power through an MMC-HVDC grid-connected system, and relates to the technical field of control of offshore wind power through a flexible direct-current power transmission grid-connected system. The problem that the active supporting capability of existing offshore wind power on a shore power grid through a flexible direct-current grid-connected system is weak is solved. According to the invention, the shore converter station is controlled by a virtual synchronous machine; the offshore wind turbine generator set transmits power to the shore converter station through the offshore converter station via flexible direct current to supply power to the shore power grid; the offshore converter station adopts a proportional-integral controller to control direct-current voltage to be kept at a rated value; the virtual synchronous machine control adopts a mode of simulating a synchronous machine rotor motion equation and an excitation equation and is combined with frequency modulation to control an offshore converter, so that the offshore wind turbine generator increases or decreases the power to actively support an on-shore power grid. The method is suitable for active frequency support control of offshore wind power through the MMC-HVDC grid-connected system.

Methods and systems are disclosed for controlling device movement based on a movement command. Issues on accurately controlling movement of a device such as a programmable robot and rover are addressed by first determining a command type of the movement command, followed by determining specific types of controllers for a high-level controller and a low-level controller based on the determined command type. When the command type is a linear movement, a Proportional-Integral-Derivative (PID) controller is used at the high-level controller and a Proportional / Proportional-Integral (PPI) controller is used at the low-level controller to accurately control a target distance. When the command type is an angular movement, the PPI controller is used at the high-level controller and the PID controller is used at the low-level controller to accurate control the end-heading of the device.

The invention discloses a permanent magnet synchronous motor current control device and method. The current control device comprises a feedback control module, a feed-forward compensation module and an optimal amplitude limiting module. The feedback control module comprises an adder, a current instruction filter, a proportional-integral controller and an anti-saturation controller. And the feed-forward compensation module is used for compensating counter electromotive forces of a direct axis and a quadrature axis of the motor to improve the current response performance. And the optimal amplitude limiting module calculates an optimal quadrature-axis voltage amplitude limiting value according to the current rotor position and performs amplitude limiting, and calculates a voltage saturation value for resisting saturation at the same time. According to the current control device, a current loop optimal amplitude limiting and anti-saturation method is provided, the problems that a proportional-integral current loop control structure is long in adjustment time, integral is easy to saturate, and stability is reduced after amplitude limiting are solved, and the stability and the optimal control performance of a control system can be guaranteed under different working conditions.

The invention discloses a method for optimizing steering idle speed control of an oil pump motor of a counterbalance forklift truck, relates to the technical field of motor control, and solves the problems that the rotating speed of a motor is obviously lower than a set idle speed and steering is delayed or shaken due to sudden load increase of a hydraulic system at the moment of steering. The steering idle speed control optimization method comprises the steps that the steering feedback idle speed and the steering oil pressure are collected, the steering idle speed falling difference value is calculated according to the preset steering idle speed, and a load dynamic model is established; judging the duration time of the steering idle speed drop difference value, and obtaining the control torque of an oil pump motor by utilizing a composite proportional-integral controller in combination with the steering oil pressure; a torque conversion coefficient is calculated through a third-order nonlinear observer and a temperature compensation coefficient according to steering oil pressure collected by a hydraulic sensor, and then offset torque is obtained; and the control torque and the offset torque of the oil pump motor are calculated according to an idling dynamic weight distribution strategy and then input into the heavy forklift to control the oil pump motor to complete steering idling optimization.

The invention discloses a novel permanent magnet synchronous motor sensorless compound control strategy, and relates to the field of motor control. The method comprises the following steps: replacing a traditional proportional-integral controller with a nonsingular terminal sliding mode controller in a speed outer ring design, using an integral sliding mode surface, omitting an integral link of a q-axis given current, and replacing a sign function with a sigmoid function to improve the dynamic performance and robustness of a system; a high-frequency square wave injection method is adopted to carry out low-speed-domain position-sensorless control, in a middle-high-speed domain, aiming at the system buffeting problem caused by a traditional sliding mode observer, super-spiral sliding mode observation is adopted to carry out rotation angle observation, and meanwhile, an orthogonal phase-locked loop is adopted to eliminate the influence of large numerical value difference possibly occurring due to angle errors. The invention provides a novel permanent magnet synchronous motor sensorless compound control strategy, namely an angle-speed time-sharing weighted hysteresis switching strategy, aiming at the problem that the stability of a transition area is affected due to the fact that the traditional weighted switching in compound control possibly causes large deviation of the relation between the rotating speed and the rotor position. The non-singular sliding mode speed controller, the high-frequency square wave injection method, the improved super-spiral sliding mode observer method and the angle-speed time-sharing weighted hysteresis switching strategy are applied to the full-speed-domain sensorless control system, and the high-performance surface-mounted permanent magnet synchronous motor sensorless control system is achieved.

A method is for adaptively controlling a charging module that converts three-phase AC input to DC output with improved power factor correction. The method includes performing Clarke and Park transforms on input three-phase AC voltages to obtain d-q axis components, measuring and transforming boost inductor currents to obtain current axis components, generating control values through current-loop and voltage-loop modules based on target and measured values, and synthesizing PWM signals to control switching operations. The method features adaptive phase angle computation using a proportional-integral controller that responds to load variations in real-time. The control system maintains high power factor under varying load conditions by continuously adjusting the phase reference based on the q-axis voltage error. This approach minimizes power losses, reduces harmonic distortion, and ensures stable operation across the full operating range of the charging module while maintaining unity power factor.

The invention discloses a control method of a virtual synchronous generator based on zero-pole assignment, equipment, a medium and a product, and relates to the technical field of new energy grid-connected converter control. Parameters of a proportional-integral controller, a feed-forward coefficient of an active power difference and a feed-forward coefficient of an active power set value difference are set; the zero point of the first active power transfer function is equal to the second pole of the active loop, and the zero point of the second active power transfer function is equal to the second pole of the active loop, so that the zero points are offset, and the first active power transfer function and the second active power transfer function are reduced into a first-order system, so that the parameter design is simpler; meanwhile, an active ring pole is determined through active customization adjustment time, then proportional-integral controller parameters are determined, a reactive ring integral coefficient is determined through reactive customization adjustment time, and therefore time can be customized flexibly.