228 results about "Generator control" patented technology

The invention discloses a short-circuit current limiting and short-circuit recovery transient voltage control device and method for an aviation three-stage power generation system, and the device comprises a three-stage power generator, a power generator controller, a current sensor, a voltage and current collection module, and an asymmetric half-bridge excitation control circuit. Collecting the output current iL and voltage UL of the generator through a digital processor of the generator controller; when short circuit occurs, the given voltage USet of the voltage regulating loop is linearly reduced in a piecewise mode according to the relation between the iL and a preset threshold value, so that the generator works in a constant power interval; and when the short circuit is recovered, closing the upper / lower power tubes of the asymmetric half-bridge excitation control circuit according to the relationship between UL and a preset threshold value in a grading manner, and triggering a negative-pressure follow-current mode of a main excitation winding of the generator controller to quickly extinguish the field. The method can adapt to different generators without adjusting hardware circuit parameters, has no motor ablation risk during short circuit, has transient voltage less than 350V after short circuit recovery, has no power supply interruption in the whole process, has response delay less than 1ms, and greatly improves the safety and robustness of an aviation power supply and distribution system.

The invention relates to the technical field of wind driven generator control, in particular to a thermal management system and method for a wind driven generator, and the system comprises a data collection layer, a prediction module, a digital twin model, an intelligent control and diagnosis engine, and a heat dissipation execution mechanism. In the prior art, an open-loop or simple feedback control scheme based on a real-time temperature threshold value is mainly adopted, the problem of response lag exists, and all heat dissipation parts always work independently and lack cooperation, so that the energy efficiency is low; according to the invention, a closed-loop intelligent thermal management scheme based on a digital twin model is adopted, and real-time simulation and future state prediction are carried out by constructing virtual mapping of a generator thermal system, so that a control system can actively and cooperatively manage all heat dissipation resources according to a simulation result; the method has the core advantage of converting passive into active, and can intervene in advance before excessive accumulation of heat, so that collaborative optimal control of all parts of the system is realized, and the accuracy, timeliness and overall energy efficiency of heat management are remarkably improved.

The invention discloses a dynamic power generation control method and system for a generator, and belongs to the technical field of generator control, and the method comprises the steps: receiving a generator output parameter collected in real time and an operation parameter of first equipment, predicting the load demand of the generator, and obtaining the predicted load power of a period of time in the future; establishing a composite control strategy, taking the predicted load power as the input of feed-forward control, forming a composite control loop with the output power feedback of the generator, and generating an execution instruction; the generator is controlled to operate according to the execution instruction, and self-adaptive fusion execution is carried out; and carrying out statistical analysis on the prediction error sequence and the control response characteristics. In the implementation process of the technical scheme, the prediction load power is obtained, the execution instruction is generated based on the prediction load power, and then adaptive fusion execution is performed in a credibility prediction mode, so that the prediction process participates in the execution process, and the control response speed of the generator is improved.

The invention relates to the technical field of generator control, and discloses an intelligent vehicle-mounted high-power self-generating control method and system. The method comprises the following steps: acquiring operating parameters of a generator set, performing high-precision digital processing, realizing constant-rotating-speed control through cooperation of multiple controllers based on a rotating-speed fluctuation characteristic value, performing power factor correction through coordinate transformation and active rectification to obtain a direct-current bus voltage, performing precise voltage stabilization by adopting a multi-phase interleaving converter, and outputting the direct-current bus voltage. And finally, outputting a high-quality three-phase alternating-current power supply through space vector modulation and closed-loop feedback control. The technical problems in the prior art that the power supply quality control capability is insufficient, the intelligent level is low, the environmental adaptability is poor, the load adaptability is limited, and the maneuverability is limited are solved.

The invention discloses a new energy fracturing truck pump flow control system and method and a fracturing truck, and belongs to the technical field of new energy petroleum equipment.The new energy fracturing truck pump flow control method comprises the steps that pump target flow parameters and an engine mode are received; calculating the target rotating speed of the pump motor, and sending the target rotating speed of the pump motor to a pump main motor controller; the feedback real-time torque value and real-time rotating speed are received and sent to the pump slave motor controller; calculating the total input target power of the pump motor; calculating a generator output target total power based on the pump motor input target total power; determining a generator target speed based on the engine mode and the generator output target total power; based on the generator output target total power, calculating generator input target total power; and calculating a generator target torque based on the generator input target total power and the generator target speed, and sending the generator target torque to a generator controller. According to the invention, pump flow multi-mode control or / and stepless real-time intelligent flow regulation is realized.

The invention relates to the technical field of wind turbine generator management, in particular to a wind turbine generator control method and system based on component interaction influence analysis, and the method comprises the steps: collecting the multi-source operation data of a wind turbine generator impeller system and a gear box system and the turbulence intensity of a wind field in real time; based on the multi-source operation data, calculating a dynamic interaction influence index between the impeller and the gearbox; according to the dynamic interaction influence index and the turbulence intensity of the wind field, judging whether the wind turbine is in a low-interaction influence working condition or a high-interaction influence working condition currently; when it is judged that the working condition is the low-interaction-influence working condition, a first control strategy based on historical optimal parameters is adopted to control the wind turbine; when it is judged that the working condition is the high-interaction-influence working condition, a second control strategy based on the prediction model is adopted to control the wind turbine; the dynamic interaction influence of the impeller and the gearbox can be evaluated in real time, and grading self-adaptive control is achieved accordingly.

The embodiment of the invention relates to the technical field of wind turbine generator control, and provides a dynamic compensation control method and system for a rotor voltage of a wind turbine generator, and the method comprises the steps: decomposing a power grid voltage and a rotor current into a positive-sequence component and a negative-sequence component in real time through constructing a self-adaptive decoupling control architecture based on a dual-synchronous coordinate system; a positive-sequence channel is responsible for accurately tracking active and reactive power instructions and guaranteeing a power generation task, and a negative-sequence channel is responsible for accurately tracking a positive-sequence channel and a negative-sequence channel; the negative sequence channel aims at eliminating negative sequence current and suppresses second harmonic pulsation; a dynamic compensation gain mechanism is further introduced, the fault severity is evaluated by quantifying the unbalance degree of a power grid in real time, and the intensity of negative sequence compensation is adaptively adjusted, so that the control strategy can maximally suppress pulsation when a slight fault occurs, and the safety of the converter is preferentially guaranteed and the overcurrent risk is avoided when a serious fault occurs.

The invention relates to the technical field of wind driven generator control, in particular to a wind driven generator blade electric pulse deicing device thyristor control method, which comprises the following steps of: acquiring multi-dimensional data and fusing the multi-dimensional data into a blade working condition sensing data set to provide a rich and comprehensive information basis; the method comprises the following steps: acquiring blade surface icing thickness distribution data by acquiring a multi-time-sequence data training model and combining calibration data; differentiated division of energy demands is realized by dividing pulse energy demand levels and outputting a distribution matrix; the accuracy of the control parameters is improved by calculating the thyristor conduction angle adjusting quantity and the pulse width modulation parameters; low-temperature compensation correction is performed on the thyristor, so that the reliability of a trigger pulse sequence in a low-temperature environment is ensured; by executing differential electric pulse deicing operation, the deicing efficiency and pertinence are improved; the self-adaptive optimization control of the deicing process is realized by acquiring the deicing completion degree in real time and dynamically updating the regional energy density distribution matrix.

The utility model discloses a generator control device, a gas generator system and an aircraft, the generator control device comprises an automatic control unit, a sensing unit and a rectification unit, the generator is connected with a turbine of a turbojet engine through a main shaft, and the generator is connected with electric equipment. The automatic control unit is connected with an oil pump of the turbojet engine, electric equipment, the sensing unit and the rectifying unit, the sensing unit comprises a rotating speed sensor connected with a main shaft, the rectifying unit comprises a diode rectifier bridge and a buck-boost converter, the generator is connected with the diode rectifier bridge, and the diode rectifier bridge is connected with the buck-boost converter. And the buck-boost converter is connected with electric equipment. The power supply can stably output electric energy according to the requirements of electric equipment, ensures that the output voltage is stable, and meets the requirements of the electric equipment.

This invention provides a battery heating system and method for an electric vehicle superstructure, relating to the field of battery preheating technology. The system includes: an electric vehicle superstructure comprising a drive motor controller, a generator, a generator controller, a DC-DC converter, a low-voltage battery, a power battery, a hybrid controller, an integrated capacitor, a superstructure load, and a drive motor; the generator is connected to the vehicle chassis engine; the power battery has a built-in battery distribution module; the battery management unit includes a positive contactor, an integrated capacitor, a negative contactor, and a charge / discharge current meter connected in series, wherein a resistor R1 and a pre-charge contactor are connected in parallel to the positive contactor, and the drive motor controller and the generator controller are connected in parallel to the integrated capacitor; the battery management unit also includes a heating contactor, a heating current meter, and a PTC thermistor pair connected in series, wherein the heating contactor is connected to the positive terminal of the power battery, and the PTC thermistor pair is connected to the negative contactor.

The invention belongs to the field of wind power generation, and particularly relates to a matrix double-helix wind generating set control system which comprises an energy capture and conversion module, a direct-current bus voltage stabilization and protection module, an intelligent power management module, a grid-connected inversion module and an intelligent monitoring and data interaction module which are electrically connected in sequence. The energy capture and conversion module comprises a wide-range high-efficiency rectification and active voltage stabilization unit, and the wide-range high-efficiency rectification and active voltage stabilization unit comprises a three-phase full-bridge rectification module and a super capacitor module. Three-phase alternating current output by the generator is converted into direct current through the three-phase full-bridge rectifier module, and the output end of the three-phase full-bridge rectifier module is connected with the super capacitor module in parallel. And the direct current bus voltage stabilization and protection module comprises a multi-protection and intelligent switching unit. The matrix double-helix wind generating set control system integrates wide-area energy management, active safety protection and intelligent state monitoring.

This invention discloses a piston-type wind turbine generator set, including a disc, a nacelle, a tower, a linear reciprocating mechanism, a gearbox, a generator, and a control cabinet. The nacelle is mounted on the tower. The linear reciprocating mechanism is located inside the nacelle and extends outwards, connecting to the disc. The linear reciprocating mechanism is connected to the input shaft of the gearbox, and the output shaft of the gearbox is connected to the generator. The generator is connected to the control cabinet. When the disc is subjected to the thrust of horizontal wind, it performs a reciprocating translational motion, driving the generator through the gearbox. This invention can reduce the rotational load on the plane perpendicular to the wind direction, reduce airflow, achieve higher aerodynamic efficiency, and improve power generation efficiency.

The application relates to the technical field of electrical engineering, in particular to an intelligent power measuring device for generator control, which comprises a generator, a power detector is arranged on one side of the generator, a connecting hole is formed in one side of the power detector, a connecting line is fixedly connected to the generator, the other end of the connecting line is used for being connected with the power detector, a connecting column is fixedly connected to the inside of the power detector, the connecting column is located on one side of the connecting hole, a rotating plate is sleeved on the connecting column, one end of the rotating plate is rotationally connected with the connecting column, the other end of the rotating plate is fixedly connected with a fixing column, and the fixing column is used for winding the connecting line on the connecting column; when the connecting line on the generator is connected with the power detector, the connecting line can be automatically wound on the connecting column under the action of the fixing column.

1. Name of the product in this design: Controller housing. 2. Purpose of this design: For sealing generator controllers. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key features: the front view.

The invention belongs to the field of fault protection of a high-voltage direct-current generator controller, and particularly relates to a software design method for excitation positive short circuit of a generator controller, which comprises the following steps of: setting excitation protection conditions, and when the frequency of a permanent magnet machine is greater than or equal to a network casting rotating speed, a voting unloading signal is network casting permission and a control command of a main contactor is switched on; when the excitation protection condition is met, an excitation over-ground short circuit fault protection mark is set, excitation is removed, and the main contactor is switched off; when it is detected that the excitation positive voltage is normal for a first continuous number of times, eliminating the excitation positive voltage abnormal count and the excitation over-ground short circuit fault mark; and if the frequency of one beat of the permanent magnet machine is smaller than the network casting rotating speed or the voting unloading signal is unloading or the main contactor control command is disconnection, clearing the excitation positive voltage abnormal count, the excitation positive voltage jump count and the excitation over-ground short circuit fault mark. And the continuous short circuit or intermittent short circuit fault of the excitation positive voltage can be accurately identified.

The invention provides a wind driven generator control method and system and a server, and relates to the field of wind driven generator safety control, and the method takes a clearance radar as a safety hard constraint, obviously reduces the tower sweeping risk, can maintain the control reliability under the conditions of rain, fog, clutter and the like, reduces the unnecessary power limitation and shutdown occurrence probability, and improves the safety of the wind driven generator. The misjudgment rate of the wind driven generator in the clearance control process is greatly reduced; in addition, according to the method, wind measurement load shedding and clearance safety can be coupled in the control process of the wind driven generator, feedforward control can be carried out under the working conditions of gust, shearing, yaw errors and the like, and the load of the wind driven generator is reduced.

This specification discloses an exhaust braking control method, system, computing device, storage medium, and vehicle. In this method, when a hybrid vehicle is operating on a long downhill slope and the generator set enters a power-consuming state, the engine is put into in-cylinder braking or exhaust braking mode, and the generator is in speed mode. In the control of the generator's target speed, a torque limit calculated by mechanical power is added. This torque limit restricts the integral part of the speed loop and the proportional-integral sum in the generator control, improving the power response of the generator's exhaust braking and avoiding excessive overshoot. By having the generator drive the engine to consume excess feedback energy, the battery charge can be dynamically adjusted, ensuring that the feedback energy generated during drive auxiliary braking does not lead to overcharging, and also ensuring the auxiliary braking of the drive motor, thereby improving vehicle driving safety.

1. The name of the design product: generator control box. 2. The use of the design product: control the start, stop, protection, power supply of the generator set. 3. The design points of the design product: the combination of shape, pattern and color. 4. The picture or photo that best indicates the design points: perspective view. 5. The design claimed contains color.

The application relates to the technical field of circular water pool wave generators, and discloses a circular water pool wave generator control system which comprises a central controller, a motion controller and multiple wave generators. The wave generator has a driver, a servo motor, a motion structure and a wave board. The central controller is in communication with the motion controller. The motion controller is an EtherCAT bus-based motion control card. The motion control card is in communication connection with the multiple drivers. The EtherCAT bus is an open architecture, has the advantages of high communication rate, good real-time performance, precise synchronization performance and diversified topological mechanisms, guarantees the synchronization communication of instruction data and state data between the motion controller and the drivers in units of microseconds, achieves the purpose of real-time synchronous motion control, makes the synchronization of the multiple wave generators better, and achieves the purpose of synchronous motion control.

This utility model relates to the technical field of battery cell flipping technology, and particularly to a battery cell flipping mechanism. A servo module of a battery cell pusher drives a battery cell pusher plate to push a row of battery cells on a battery cell support bar forward, tightly closing them together, and feeding them one by one to the flipping mechanism. The flipping mechanism includes a rotating part, a flexible suction cup, a vacuum generator, and a telescopic cylinder. The flexible suction cup is disposed on the surface of the rotating part, which provides flipping power through the telescopic cylinder. The vacuum generator controls the flexible suction cup to adsorb or release the battery cells. The battery cells, initially upright, are flipped by the flipping mechanism and then laid flat on a flat belt conveyor. This structure achieves intelligent control of the entire process from battery cell loading to flipping and conveying, maintaining an extremely low battery cell breakage rate while possessing extremely high battery cell flipping and conveying efficiency, and is compatible with the flexible production of battery cells of various specifications and sizes.

The application discloses a direct-current networking wind generator system and a control method thereof, adopts decentralized and decentralized power generation control, and comprises a wind generator set, a generator controller, an energy storage battery system and a PCS converter; the wind generator set adopts a doubly salient direct-current excitation generator assembly; the generator controller can convert three-phase alternating current output by the doubly salient direct-current excitation generator assembly into high-voltage direct-current shaft voltage through a full-bridge diode rectification filter circuit, and an additional machine end inverter is not needed; each generator controller is connected with one wind generator set, and a plurality of generator controllers are connected in parallel through a direct-current bus. The direct-current voltage output by the doubly salient direct-current excitation generator assembly can automatically follow the common direct-current bus voltage and keep dynamic stability, and will not fluctuate with the dynamic change of the wind turbine speed; the current backflow phenomenon and the crosstalk problem can be effectively avoided, and the wind turbine industry multi-machine direct-current networking demand is perfectly met.

Embodiments of the present application provide a rotating speed control method and device, a vertical axis wind turbine and a storage medium, and relate to the technical field of wind turbine control. The method adjusts the motor side load voltage which is inversely related to the rotating speed of the vertical axis wind turbine, according to the operating stage of the vertical axis wind turbine, the real-time tip speed ratio, the real-time rotating speed, and the preset parameters obtained from the corresponding tip speed ratio-power coefficient curve of the vertical axis wind turbine, to control the rotating speed of the vertical axis wind turbine in each operating stage, so as to take the tip speed ratio and the real-time rotating speed as the control variables, integrate all operating stages such as real-time calibration, dead zone identification, resonance avoidance, power tracking and safe shutdown into the same control framework, and enable the vertical axis wind turbine to have the intelligent operating ability of "acting according to the wind and adjusting the rotating speed according to the demand" like a wind turbine with variable pitch.

The application provides an oxygen generator control method, an oxygen generator control system, UE equipment and an oxygen generator, relates to the technical field of oxygen generator control, and the method comprises the following steps: when a Bluetooth module is matched with vehicle-mounted Bluetooth, a control module starts vehicle-mounted mode to control an oxygen generation module to supply oxygen to a vehicle space; when the Bluetooth module is matched with UE equipment Bluetooth and a hiking start signal sent by the UE equipment Bluetooth is received, the control module starts hiking mode to control the oxygen generation module to supply oxygen to a person through an oxygen inhalation pipe. The method realizes the connection of the Bluetooth module of the oxygen generator with vehicle-mounted Bluetooth or UE equipment, realizes the switching of vehicle-mounted and hiking oxygen generation modes, solves the technical problems that the control of the existing oxygen generator is not flexible and different use scene requirements cannot be considered, and the technical effects of flexibly controlling the switching of the oxygen generation mode and meeting different scene requirements are achieved.

This application discloses a wind turbine operation control method, device, equipment, and storage medium, relating to the field of wind turbine generator control technology. The method includes: preprocessing initial pitch angle setpoints to obtain a target pitch angle setpoint time series; determining the inflection point positions of the target pitch angle setpoint time series and the change amplitude of adjacent inflection points to form a change amplitude set; determining the target change amplitude corresponding to a preset time period in the change amplitude set; and determining the number of target amplitudes from the target change amplitudes based on a preset amplitude threshold; determining whether the number of target amplitudes is greater than a preset number threshold; if greater, then controlling the target wind turbine to operate based on a preset low-fatigue operation mode. In this way, characteristic variables such as the pitch angle setpoint are used to equivalently describe the wind speed changes on the turbine rotor surface, thereby reducing fatigue load and improving the safety and stability of turbine operation.

This invention relates to a small intelligent power unit cooling system based on high-pressure fans, comprising an engine water-cooled radiator, an engine intercooler, a generator water-cooled radiator, and two high-pressure motor fans. The engine water-cooled radiator, generator water-cooled radiator, and engine intercooler are arranged side-by-side in sequence. The two high-pressure motor fans are fixed to the back of the engine water-cooled radiator, generator water-cooled radiator, and engine intercooler by brackets at intervals. The drive motors of the two high-pressure motor fans are respectively connected to the generator controller of the power unit through motor drivers. It has the advantages of compact structure, convenient control, stability and reliability, and good heat dissipation effect.

The invention discloses a novel offshore wind power generation system control method based on a disturbance observer, and relates to the technical field of permanent magnet synchronous wind power generator control. The method comprises the following steps: constructing a mathematical model of a wind turbine, and designing a maximum power tracking module; constructing a mathematical model of the permanent magnet synchronous generator; designing a disturbance torque observer, and introducing a low-pass filter to improve the observation precision; designing a sliding mode controller based on a double-exponential reaching law; and combining the output values of the sliding mode controller and the disturbance torque observer as a q-axis current instruction to control the rotating speed of the permanent magnet synchronous generator. According to the method, the maximum power point of the wind turbine is captured, the air disturbance torque is estimated and compensated, accurate and rapid tracking of the rotating speed of the rotor matched with the maximum power point of the wind turbine is achieved through the novel double-exponential sliding mode controller, and the wind energy conversion efficiency is improved. And the anti-interference capability of the wind power generation system is enhanced in a complex marine environment.

A kind of high-power wind turbine control method based on localization PLC, it includes: S1: central data processor reads unit operation history file from unit database, unit operation history file includes the historical failure data of unit and the ten-minute operation data of unit;S2: unit operation history file is split and cleaned, and the data of shutdown is eliminated;S3: from the historical failure data of unit, the occurrence frequency and occurrence time of each unit appearing overspeed, card paddle are counted;S4: according to the occurrence time of unit appearing overspeed, card paddle counted, the operation data of unit before and after corresponding time is inquired from the ten-minute operation data of unit and is carried out variable analysis;S5: central data processor transmits the key variable of each unit and variable operation threshold to the domestic PLC controller of unit, and the domestic PLC controller switches control according to the key variable of each unit and variable operation threshold the variable pitch strategy of unit.

The invention belongs to the technical field of aviation power generation systems, and discloses an alternating current starting power generation system starting phase sequence online identification method, which comprises the following steps of: 1, providing 28V control electricity and 115V / 400Hz three-phase constant-frequency alternating current for a generator controller; 2, setting a current comparison threshold value, wherein a data acquisition period is as follows; the starting generator controller is used for converting the 115V / 400Hz three-phase constant-frequency alternating current into low-voltage three-phase constant-frequency alternating current; 3, applying the low-voltage three-phase constant-frequency alternating current to a three-phase winding of a main generator stator to generate three-phase current; step 4, collecting three-phase current fed back by a current sensor, and recording the three-phase current as,..., and collecting three-phase current fed back by a motor mutual inductor, and recording the three-phase current as,...; 5, calculating the sum of the three-phase current according to the sum; and 6, calculating the absolute value of the current sum in one current period, solving the average value of the absolute values of continuous N periods, if the average value is smaller than a set threshold value, indicating that the starting phase sequence is correct, otherwise, indicating that the starting phase sequence is wrong.