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DC motor is used as adjustable speed machine in which the motor should be precisely controlled to give the desired performance.
For example, the voltage of machine can be controlled to control the flux, and frequency or slip can be controlled to control the torque.
The optimization procedure is chosen in such a way to satisfy the controlled system dynamics and constraints, penalize system output deviation from the desired trajectory, and minimize control effort.
The average value of voltage (or current) fed to the load is controlled by turning the switch between supply and load.
System load is never steady using controller these can be controlled.
Then the performance of the controlled system for DC Motor is investigated.
22311963 EFFICIENCY OPTIMIZATION OF VECTOR-CONTROLLED INDUCTION MOTOR DRIVE Hussein Sarhan Department of Mechatronics Engineering, Faculty of Engineering Technology, Amman, Jordan ABSTRACT This paper presents a new approach that minimizes total losses and optimizes the efficiency of a variable speed three-phase, squirrel-cage, vector-controlled induction motor drive through optimal control, based on combined loss-model control and search control.
Dynamic Performance Assessment of Primary Frequency Modulation for a Power Control System Based on MATLAB 98%
In Figure 1, GP ( s ) and GPID ( s ) represent the controlled object and controller, respectively, and R ( s ) , E ( s ) , U ( s ) , Y ( s ) , and D( s ) represent the reference, the error, the control action, the output, and the external disturbance, respectively.
The error value is controlled accordingly either in the PID controller or in the fuzzy logic controller.
In , The conventional PWM controlled power electronics circuits is proposed based on averaging technique but the system operates optimally only for a specific conditions stated in 1998.
The PAIR solenoid valve is operated by the ECM, and the fresh air flow is controlled according to the TPS, ECTS, IATS and ZAPS .
Therefore, this paper uses fuzzy PID control method, which make the control target can be controlled in real time through the on-line adjustment of PID parameters, thus, enhance the stability and efficiency of the cargo handling robot.
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