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75results about How to "Improve fluctuation suppression effect" patented technology
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Full-bridge modular multilevel converter sub-module capacitor voltage fluctuation suppression method
ActiveCN113224960AImprove fluctuation suppression effectAc-dc conversionCapacitanceCapacitor voltage
The invention relates to a full-bridge MMC sub-module capacitor voltage fluctuation suppression method. The method comprises the steps of: acquiring an AC side current amplitude of a full-bridge MMC, and acquiring a theoretically required circulating current value according to the AC side current amplitude, a power factor angle, and a sub-module capacitor voltage fluctuation component model of the full-bridge MMC; acquiring an upper bridge arm current instantaneous value, a lower bridge arm current instantaneous value and a direct current instantaneous value of the full-bridge MMC, and calculating to obtain an actual circulating current value of the full-bridge MMC; and calculating a difference value between the theoretically required circulating current value and the actual circulating current value, generating a reference voltage according to the difference value, injecting the reference voltage into the full-bridge MMC, generating the required circulating current in each phase after modulation, and suppressing the capacitor voltage fluctuation of each sub-module. According to the full-bridge MMC sub-module capacitor voltage fluctuation suppression method, the corresponding reference voltage can be injected according to the actual circulation value, and the sub-module capacitor voltage fluctuation suppression effect can be improved.
Owner:TIANSHENGQIAO BUREAU CSG EHV POWER TRANSMISSION CO
Air conditioner compressor rotating speed fluctuation suppression method
ActiveCN109698647AGuaranteed uptimeImprove fluctuation suppression effectTorque ripple controlElectric motor controlMomentumAngular velocity
The invention discloses an air conditioner compressor rotating speed fluctuation suppression method. The method includes processes of controlling a compressor according to real-time angular velocity and moment. The process of controlling the compressor according to the real-time angular velocity includes the following steps: filtering axis errors to obtain an angular velocity compensation amount;obtaining a compensated angular velocity output amount according to the angular velocity compensation amount; and correcting the real-time angular velocity according to the compensated angular velocity output amount and controlling the compressor; The process of controlling the compressor according to the moment includes the following steps: calculating a difference between a target angular velocity fluctuation amount and the compensated angular velocity output amount to obtain a first angular velocity difference; filtering the first angular velocity difference to obtain filtered angular velocity; inputting the filter angular velocity into a speed loop regulator to obtain output moment; obtaining a moment compensation amount according to the first angular velocity difference; and obtainingcompensated output moment according to the moment compensation amount and the output and controlling the compressor. The effectiveness of compressor rotating speed fluctuation suppression can be improved by applying the air conditioner compressor rotating speed fluctuation suppression method.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
Method and device for inhibiting compressor rotating speed fluctuation
ActiveCN109660172AGuaranteed uptimeImprove fluctuation suppression effectMotor control for motor oscillations dampingAngular velocityPhase-locked loop
The invention discloses a method and device for restraining rotation speed fluctuation of a compressor. The method comprises the steps: acquiring a shaft error reflecting the deviation between an actual position and an estimated position of a compressor rotor; performing filtering processing on the shaft error to obtain at least part of a shaft error compensation quantity after shaft error fluctuation is filtered out; inputting the shaft error compensation quantity as an input quantity into a phase-locked loop regulator of a phase-locked loop for controlling a compressor; and correcting the real-time angular velocity for controlling the compressor by using an output angular velocity of the phase-locked loop regulator, and controlling the compressor according to the corrected real-time angular velocity. The method can improve the effectiveness of compressor rotating speed fluctuation suppression.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
Method for controlling rotating speed of single-rotor compressor
ActiveCN109458336AGuaranteed uptimeImprove fluctuation suppression effectMachines/enginesMomentumAngular velocity
The invention discloses a method for controlling the rotating speed of a single-rotor compressor. The method comprises the process of controlling the compressor according to the real-time angular velocity and the process of controlling the compressor according to the torque, wherein the process of controlling the compressor according to the real-time angular velocity comprises the following stepsthat filtering processing is carried out on the shaft error so as to obtain the shaft error compensation amount; the shaft error compensation amount is input to a phase-locked loop adjuster so as to obtain the output angular velocity of the phase-locked loop adjuster; and the real-time angular velocity is corrected by utilizing the output angular velocity, and the compressor is controlled according to the corrected real-time angular velocity. The process of controlling the compressor according to the torque comprises the following steps that the difference between the target angular velocity fluctuation amount and the output angular velocity of the phase-locked loop adjuster is calculated so as to obtain a first angular velocity difference value; filtering processing is carried out on thefirst angular velocity difference value to obtain the filtering angular velocity; the filtering angular velocity is input to a speed loop regulator so as to obtain the output torque; and the compressor is controlled according to the output torque. By applying the method, the effectiveness of fluctuation inhibition of the rotating speed of the compressor can be improved.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
Method and device for controlling rotational speed of compressor
ActiveCN109560739AGuaranteed uptimeReduce speed fluctuationElectronic commutation motor controlVector control systemsPhase-locked loop
The invention discloses a method and a device for controlling the rotational speed of a compressor. The method comprises the following steps: obtaining the axis error reflecting the bias of the actualposition and the constructive position of the rotor of the compressor; carrying out filtering processing on the axis error to obtain axis error compensation quantity after at least a part of axis error is filtered; taking the axis error compensation quantity as an input quantity to be put into a phase-locked loop adjuster in a phase-locked loop used for compressor control to obtain the output angular speed of the phase-locked loop adjuster; taking the output angular speed of the phase-locked loop adjuster as an input quantity to be put into a speed ring adjuster in a speed ring used for compressor control to obtain the output torque of the speed ring adjuster; using the output angular speed of the phase-locked loop adjuster to correct real-time angular speed used for compressor control, and controlling the compressor according to the corrected real-time angular speed and the output torque of the speed ring adjuster. By using the method, the rotational speed fluctuation inhibition effectiveness of the compressor can be improved.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
Method for controlling rotating speed of compressor of air conditioner
ActiveCN109724312AGuaranteed uptimeImprove effectivenessSpace heating and ventilation safety systemsSpace heating and ventilation control systemsMomentumControl theory
The invention discloses a method for controlling the rotating speed of a compressor of an air conditioner. The method includes the processes of controlling the compressor according to the real-time angular speed and the torque; the process of controlling the compressor according to the real-time angular speed includes the following steps that filtering processing is performed on the axis error, and the angular speed compensation quantity is acquired; the compensated angular speed output quantity is acquired according to the angular speed compensation quantity; the real-time angular speed is corrected according to the compensated angular speed output quantity, and the compressor is controlled; the process of controlling the compressor according to the torque includes the following steps that the difference between the target angular speed fluctuation quantity and the fed-back angular speed quantity is calculated, and the first angular speed difference is acquired; filtering processing is performed on the first angular speed difference, and the filtered angular speed is acquired; the filtered angular speed is input into a speed loop regulator, and the output torque is acquired; the torque compensation quantity is acquired according to the first angular speed difference; the compensated output torque is acquired according to the torque compensation quantity and the output torque,and the compressor is controlled. By the aid of the method, the effectiveness of suppressing of the fluctuation of the rotating speed of the compressor can be improved.
Owner:CHONGQING HAIER AIR CONDITIONER CO LTD +2
Method and device of suppressing rotating speed fluctuation of air conditioner compressor
ActiveCN109724323ASuppression of speed fluctuationsReduce speed fluctuationSpace heating and ventilation safety systemsSpace heating and ventilation control systemsDirect currentPhase-locked loop
Owner:CHONGQING HAIER AIR CONDITIONER CO LTD +2
A method for controlling the speed fluctuation of an air conditioner compressor
Owner:CHONGQING HAIER AIR CONDITIONER CO LTD +2
Method and device of controlling rotating speed of compressor
ActiveCN109724324AGuaranteed uptimeReduce speed fluctuationSpace heating and ventilation safety systemsSpace heating and ventilation control systemsEngineeringPhase-locked loop
The invention discloses a method and device of controlling the rotating speed of a compressor. The method comprises the steps that an axis error which reflects the deviation between the practical position and the presumptive position of a compressor rotor is acquired; the axis error is subjected to filtering treatment, so that a corrected axis error which is formed after at least one part of the axis error fluctuation is filtered away and the angular speed compensation quantity which corresponds to the corrected axis error are obtained; the angular speed compensation quantity compensates for the output angular speed of a phase-locked loop regulator in a phase-locked loop of the compressor, so that the compensated angular speed output quantity is obtained; meanwhile, the output angular speed of the phase-locked loop regulator is inputted into a speed loop regulator in a speed loop by serving as the input quantity; and the real-time angular speed for compressor control is corrected according to the compensated angular speed output quantity, and the compressor is controlled according to the corrected real-time angular speed and the output torque of the speed loop regulator. By use ofthe method and device, the effectiveness of suppression of the rotating speed fluctuation of the compressor can be improved.
Owner:CHONGQING HAIER AIR CONDITIONER CO LTD +2
Method for controlling rotating speed of single-rotor compressor
ActiveCN109458337AGuaranteed uptimeImprove fluctuation suppression effectMachines/enginesMomentumPhase-locked loop
The invention discloses a method for controlling the rotating speed of a single-rotor compressor. The method includes the processes of controlling the compressor according to the real-time angular speed and the torque. The process of controlling the compressor according to the real-time angular speed includes the steps that the axis error is filtered, and an angular speed compensation dosage is obtained; the angular speed compensation dosage is compensated into the output angular speed of a phase-locked loop adjuster, and the compensated angular speed output quantity is obtained; and the real-time angular speed is corrected according to the compensated angular speed output quantity, and the compressor is controlled according to the corrected real-time angular speed. The process of controlling the compressor according to the torque includes the steps that the difference between the target angular speed fluctuation quantity and the compensated angular speed output quantity is calculated,and a first angular speed difference value is obtained; the first angular speed difference value is filtered, and the filtered angular speed is obtained; the filtered angular speed is input in a speed loop adjuster, and the output torque is obtained; and the compressor is controlled according to the output torque. By means of the method, the effectiveness of rotating speed fluctuation suppressionof the compressor can be improved.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
A method for controlling the speed fluctuation of an air conditioner compressor
ActiveCN109724318BGuaranteed uptimeImprove effectivenessSpace heating and ventilation safety systemsSpace heating and ventilation control systemsAngular velocityMechanical engineering
Owner:CHONGQING HAIER AIR CONDITIONER CO LTD +2
Method for Controlling Speed Fluctuation of Single Rotor Compressor
ActiveCN109698645BGuaranteed uptimeImprove effectivenessTorque ripple controlElectric motor controlAngular velocityEngineering
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
A method and device for controlling the speed of a single-rotor compressor
ActiveCN109723645BGuaranteed uptimeReduce speed fluctuationMachines/enginesMotor control for motor oscillations dampingRegulatorAngular velocity
Owner:CHONGQING HAIER AIR CONDITIONER CO LTD +2
A method and device for controlling the speed of a compressor
ActiveCN109560739BGuaranteed uptimeReduce speed fluctuationElectronic commutation motor controlVector control systemsAngular velocityMechanical engineering
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
Method of suppressing rotating speed fluctuation of air conditioner compressor
ActiveCN109724332AGuaranteed uptimeImprove fluctuation suppression effectSpace heating and ventilation safety systemsSpace heating and ventilation control systemsSpeed loopEngineering
The invention discloses a method of suppressing the rotating speed fluctuation of an air conditioner compressor. The method comprises the processes of controlling the compressor according to the real-time angular speed and the torque. The process of controlling the compressor according to the real-time angular speed comprises the steps that an axis error is subjected to filtering treatment, so that the angular speed compensation quantity is obtained; the compensated angular speed output quantity is obtained according to the angular speed compensation quantity; and the real-time angular speed is corrected according to the compensated angular speed output quantity, and the compressor is controlled. The process of controlling the compressor according to the torque comprises the steps that thedifference between the target angular speed fluctuation quantity and the compensated angular speed output quantity is calculated, so that a first angular speed difference is obtained; the first angular speed difference is inputted into a speed loop regulator, so that the output torque is obtained; the torque compensation quantity is obtained according to the first angular speed difference; and the compensated output torque is obtained according to the torque compensation quantity and the output torque, and the compressor is controlled. By use of the method of suppressing the rotating speed fluctuation of the air conditioner compressor, the effectiveness of suppression of the rotating speed fluctuation of the compressor can be improved.
Owner:CHONGQING HAIER AIR CONDITIONER CO LTD +2
Method and device for suppressing speed fluctuation of air conditioner compressor
ActiveCN109713966BGuaranteed uptimeReduce speed fluctuationElectronic commutation motor controlVector control systemsAngular velocityAir conditioning
The invention discloses a method and device for suppressing the fluctuation of the rotation speed of an air-conditioning compressor. The method includes: obtaining an axis error reflecting the deviation between the actual position and the estimated position of the compressor rotor; filtering the axis error to obtain at least The corrected axis error and its corresponding angular velocity compensation amount after filtering out some axis error fluctuations; the angular velocity compensation amount is compensated to the output angular velocity of the phase-locked loop regulator in the compressor phase-locked loop, and the compensated angular velocity output amount is obtained; The output of the compensated angular velocity is input to the speed loop regulator in the speed loop for compressor control as an input; the real-time angular velocity for compressor control is corrected according to the output of the compensated angular velocity, and according to the corrected The real-time angular velocity and the output torque of the speed loop regulator control the compressor. By applying the present invention, the effectiveness of suppressing the fluctuation of the rotational speed of the compressor can be improved.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
Method and device for controlling rotating speed of compressor
ActiveCN109469615ARun smoothlyReduce speed fluctuationMachines/enginesPump controlSpeed loopPhase-locked loop
The invention discloses a method and device for controlling the rotating speed of a compressor. The method includes the steps that the axis error reflecting the deviation of the practical position andthe presumed position of a compressor rotor is obtained; filtering treatment is conducted on the axis error, and the axis error compensation dosage generated after at least part of axis error fluctuation is filtered out is obtained; the axis error compensation dosage serves as the input quantity to be input to a phase lock loop adjusting device in a phase lock loop used for compressor control, and the output angular speed of the phase lock loop adjusting device is obtained; the output angular speed of the phase lock loop adjusting device serves as the input quantity to be input to a speed loop adjusting device in a speed loop used for compressor control, and the output torque of the speed loop adjusting device is obtained; and the output angular speed of the phase lock loop adjusting device is used for correcting the real-time angular speed used for compressor control, and the compressor is controlled according to the corrected real-time angular speed and the output torque of the speed loop adjusting device. By the application of the method and device, effectiveness of rotating speed fluctuation inhibition of the compressor can be improved.
Owner:CHONGQING HAIER AIR CONDITIONER CO LTD +2
Method for Controlling Speed Fluctuation of Air Conditioning Compressor
ActiveCN109742996BGuaranteed uptimeImprove fluctuation suppression effectMotor parameters estimation/adaptationAC motor angular speed controlAngular velocityEngineering
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
Control Method of Speed Fluctuation of Air Conditioner Compressor
ActiveCN109724326BGuaranteed uptimeImprove fluctuation suppression effectSpace heating and ventilation safety systemsSpace heating and ventilation control systemsEngineeringMechanical engineering
Owner:CHONGQING HAIER AIR CONDITIONER CO LTD +2
Method for Speed Fluctuation Control of Single Rotor Compressor
ActiveCN109586643BGuaranteed uptimeImprove fluctuation suppression effectElectric motor controlVector control systemsAngular velocityEngineering
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
How to control compressor speed
ActiveCN109724304BGuaranteed uptimeImprove fluctuation suppression effectSpace heating and ventilation safety systemsSpace heating and ventilation control systemsAngular velocityEngineering
Owner:CHONGQING HAIER AIR CONDITIONER CO LTD +2
A method and device for suppressing the fluctuation of compressor speed
ActiveCN109660172BGuaranteed uptimeImprove fluctuation suppression effectMotor control for motor oscillations dampingRegulatorAngular velocity
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
Method for speed control of single rotor compressor
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
Method for Controlling Speed Fluctuation of Air Conditioner Compressor
ActiveCN109724316BGuaranteed uptimeImprove fluctuation suppression effectSpace heating and ventilation safety systemsSpace heating and ventilation control systemsAngular velocityEngineering
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
A method for controlling the speed of an air conditioner compressor
ActiveCN109724312BGuaranteed uptimeImprove effectivenessSpace heating and ventilation safety systemsSpace heating and ventilation control systemsAngular velocityEngineering
Owner:CHONGQING HAIER AIR CONDITIONER CO LTD +2
Method for Compressor Speed Fluctuation Control
ActiveCN109724299BGuaranteed uptimeImprove effectivenessSpace heating and ventilation safety systemsSpace heating and ventilation control systemsAngular velocityMechanical engineering
Owner:CHONGQING HAIER AIR CONDITIONER CO LTD +2
Method of Controlling the Rotating Speed of Air Conditioner Compressor
ActiveCN109724328BGuaranteed uptimeImprove fluctuation suppression effectSpace heating and ventilation safety systemsSpace heating and ventilation control systemsAngular velocityEngineering
Owner:CHONGQING HAIER AIR CONDITIONER CO LTD +2
Method for compressor speed control
ActiveCN109724300BGuaranteed uptimeImprove effectivenessSpace heating and ventilation safety systemsSpace heating and ventilation control systemsAngular velocityMechanical engineering
Owner:CHONGQING HAIER AIR CONDITIONER CO LTD +2
Method for controlling compressor speed
ActiveCN109441821BGuaranteed uptimeImprove fluctuation suppression effectMachines/enginesAngular velocityMechanical engineering
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
A method for suppressing the speed fluctuation of air conditioner compressor
ActiveCN109724332BGuaranteed uptimeImprove fluctuation suppression effectSpace heating and ventilation safety systemsSpace heating and ventilation control systemsAngular velocityEngineering
Owner:CHONGQING HAIER AIR CONDITIONER CO LTD +2
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