Behavior-Based Robotics
... • Machine control refers to a closed-loop feedback system that uses sensory information to control the motion of a machine. A controller accomplishes : – Trajectory tracking – following the prescribed trajectory for the manipulation. – End-point control - reaching a goal configuration in either task ...
... • Machine control refers to a closed-loop feedback system that uses sensory information to control the motion of a machine. A controller accomplishes : – Trajectory tracking – following the prescribed trajectory for the manipulation. – End-point control - reaching a goal configuration in either task ...
Remote Lawn Mower
... power the microcontroller and RC receiver. The microcontroller and the RC receiver are low power devices which mean the four D cell batteries are less often replaced. The reason we are using a different battery pack for the microcontroller and the receiver is because they need 57volts to operate, wh ...
... power the microcontroller and RC receiver. The microcontroller and the RC receiver are low power devices which mean the four D cell batteries are less often replaced. The reason we are using a different battery pack for the microcontroller and the receiver is because they need 57volts to operate, wh ...
M1 M1 Start Stop M1 motor To 3-phase power source F1 F2 OL OL
... In particular, what it the function of the two normally-closed “M” contacts (called interlock contacts) in the control circuit? What do you think might happen if those contacts were not there? Suggestions for Socratic discussion • Explain why reversing any two phase conductors supplying AC power to ...
... In particular, what it the function of the two normally-closed “M” contacts (called interlock contacts) in the control circuit? What do you think might happen if those contacts were not there? Suggestions for Socratic discussion • Explain why reversing any two phase conductors supplying AC power to ...
Induction Motor - ENCON - Department of ENergy CONversion
... High Power/Weight, Lower Cost/Power ratios Easy to manufacture Almost maintenance-free, except for bearing and other “external” mechanical parts ...
... High Power/Weight, Lower Cost/Power ratios Easy to manufacture Almost maintenance-free, except for bearing and other “external” mechanical parts ...
Sensorless six-step BLDC commutation
... produce a negative, or counterclockwise, torque that would tend to move the motor back to 180 degrees. At 180 degrees the motor produces no torque so the rotor would remain stationary, until it is moved away from the zero torque position. The maximum torque is produced when the rotor is at 90 or 270 ...
... produce a negative, or counterclockwise, torque that would tend to move the motor back to 180 degrees. At 180 degrees the motor produces no torque so the rotor would remain stationary, until it is moved away from the zero torque position. The maximum torque is produced when the rotor is at 90 or 270 ...
RSMC Instructions - Model Railroad Control Systems
... Turnout position feedback is provided from the Position Feedback pin. This is an open collector output and is set low (zero) when the reverse switch contacts are active. Route LEDs are driven by one set of internal contacts in the Tortoise. Stall motor voltage is routed from the external contacts t ...
... Turnout position feedback is provided from the Position Feedback pin. This is an open collector output and is set low (zero) when the reverse switch contacts are active. Route LEDs are driven by one set of internal contacts in the Tortoise. Stall motor voltage is routed from the external contacts t ...
High Power Density Marine Propulsion Motors with Double
... in the stator can be reduced to a manageable level. Multifilamentary superconducting wires can be formed into multistrand cable that can be used in a 3-phase stator in an all superconducting machine. The hysteresis loss in the superconductor can be reduced with fine filament conductor. The steady st ...
... in the stator can be reduced to a manageable level. Multifilamentary superconducting wires can be formed into multistrand cable that can be used in a 3-phase stator in an all superconducting machine. The hysteresis loss in the superconductor can be reduced with fine filament conductor. The steady st ...
Electronic soft starters
... ■ Forward phase sequence ■ Reverse phase sequence ■ Forward and reverse phase sequence i.e. no phase sequence protection. Phase sequence protection is generally applied in rotation direction sensitive applications such as pumps, compressors etc. ...
... ■ Forward phase sequence ■ Reverse phase sequence ■ Forward and reverse phase sequence i.e. no phase sequence protection. Phase sequence protection is generally applied in rotation direction sensitive applications such as pumps, compressors etc. ...
E x p e r i m e n t -... I n t r o d u c t i... E l e c t r i c - D...
... You should be able to observe the speed of the motor on control panel (Fig. 1.9). The waveform for motor phase current, reference speed and actual speed is also shown. Press the button Edit mode and then press STOP. Take the waveform as shown in Fig 1.10. Study the explanations detailed next. The co ...
... You should be able to observe the speed of the motor on control panel (Fig. 1.9). The waveform for motor phase current, reference speed and actual speed is also shown. Press the button Edit mode and then press STOP. Take the waveform as shown in Fig 1.10. Study the explanations detailed next. The co ...
Basic Principles and Functions of Electrical Machines
... D.C. sources only or that itself acts as a source of D.C. [5]. It is a common practice in industry to employ A.C. motors whenever they are inherently suitable or can be given appropriate characteristics by means of power electronics devices. Yet, the increasing complexity of industrial processes dem ...
... D.C. sources only or that itself acts as a source of D.C. [5]. It is a common practice in industry to employ A.C. motors whenever they are inherently suitable or can be given appropriate characteristics by means of power electronics devices. Yet, the increasing complexity of industrial processes dem ...
BabyBully Servo Amplifier
... FEEDBACK POT: The feedback potentiometer must be 5000 ohms and electro-mechanically centered with the desired center position of the servo. Please use a potentiometer rated for servo service. There is no benefit to purchasing an ultra-linear device. Wirewound pot types can be made to work but are no ...
... FEEDBACK POT: The feedback potentiometer must be 5000 ohms and electro-mechanically centered with the desired center position of the servo. Please use a potentiometer rated for servo service. There is no benefit to purchasing an ultra-linear device. Wirewound pot types can be made to work but are no ...
Optimization of the Electrical Motor Generator in Hybrid Automobiles
... behavior of two plant configurations. Control methodologies have been analyzed and numerical results are provided, [5]. Yuliang Leon Zhou, (2007), two hybrid vehicle power train technologies were studied, a fuel cell - battery hybrid and two internal combustion engine - battery/ultra-capacitor hybri ...
... behavior of two plant configurations. Control methodologies have been analyzed and numerical results are provided, [5]. Yuliang Leon Zhou, (2007), two hybrid vehicle power train technologies were studied, a fuel cell - battery hybrid and two internal combustion engine - battery/ultra-capacitor hybri ...
Motor Sizing Principles
... motors are designed to run slightly faster than rated speed (up to a speed called synchronous speed) when they are lightly loaded. For example an induction motor with rated speed of 1450rpm may have a synchronous speed of 1500rpm and would be safe up to this speed. There is a risk of mechanical fail ...
... motors are designed to run slightly faster than rated speed (up to a speed called synchronous speed) when they are lightly loaded. For example an induction motor with rated speed of 1450rpm may have a synchronous speed of 1500rpm and would be safe up to this speed. There is a risk of mechanical fail ...
IOSR Journal of Computer Engineering (IOSR-JCE)
... light and become low when light falls on it. Photodiode is a semiconductor which has a P-N junction, operated in Reverse Bias, means it start conducting the current in reverse direction when Light falls on it, and the amount of current flow is proportional to the amount of Light. This property makes ...
... light and become low when light falls on it. Photodiode is a semiconductor which has a P-N junction, operated in Reverse Bias, means it start conducting the current in reverse direction when Light falls on it, and the amount of current flow is proportional to the amount of Light. This property makes ...
The Use of Variable Frequency Drives Engineering Bulletin
... Specific Applications of the VFD Cooling Tower Performance with a Variable Frequency Drive Because of the increasing number of VFD applications, the question of capacity and power consumption at low fan speed is frequently asked. For estimating purposes, the unit capacity drops off linearly with fa ...
... Specific Applications of the VFD Cooling Tower Performance with a Variable Frequency Drive Because of the increasing number of VFD applications, the question of capacity and power consumption at low fan speed is frequently asked. For estimating purposes, the unit capacity drops off linearly with fa ...
Brushless Alternators
... armature (stator). As a result, there are 3 outputs from the alternator and they are electrically spaced 120° out of phase with each other. A multi-pole design will have multiple sets of 3 windings. These sets of windings (poles) are spaced evenly around the circumference of the machine. The more po ...
... armature (stator). As a result, there are 3 outputs from the alternator and they are electrically spaced 120° out of phase with each other. A multi-pole design will have multiple sets of 3 windings. These sets of windings (poles) are spaced evenly around the circumference of the machine. The more po ...
KB ELECTRONICS, INC. 12095 NW 39th Street, Coral Springs
... 6. Accel Time Period (0-Full Speed) (Secs.) .5-4.0 Secs. - Most interpret the Accel time to mean the time it takes to bring the motor up to full speed. However, it really means the time it takes for the DC Drive to come up to full or set voltage. For long Accel times, the DC Drive voltage and motor ...
... 6. Accel Time Period (0-Full Speed) (Secs.) .5-4.0 Secs. - Most interpret the Accel time to mean the time it takes to bring the motor up to full speed. However, it really means the time it takes for the DC Drive to come up to full or set voltage. For long Accel times, the DC Drive voltage and motor ...
SUBJECT: GENERAL PERFORMANCE
... 6. Accel Time Period (0-Full Speed) (Secs.) .5-4.0 Secs. - Most interpret the Accel time to mean the time it takes to bring the motor up to full speed. However, it really means the time it takes for the DC Drive to come up to full or set voltage. For long Accel times, the DC Drive voltage and motor ...
... 6. Accel Time Period (0-Full Speed) (Secs.) .5-4.0 Secs. - Most interpret the Accel time to mean the time it takes to bring the motor up to full speed. However, it really means the time it takes for the DC Drive to come up to full or set voltage. For long Accel times, the DC Drive voltage and motor ...
Early Detection of Stator Voltage Imbalance in Three-Phase Induction Motors,
... 3. Wavelet processing of stator signals Although models of electrical motors and drive systems are available for prediction of their normal (i.e., healthy) behavior, such models may not be adequate for identification of incipient faults due to the presence of spurious disturbances and measurement unc ...
... 3. Wavelet processing of stator signals Although models of electrical motors and drive systems are available for prediction of their normal (i.e., healthy) behavior, such models may not be adequate for identification of incipient faults due to the presence of spurious disturbances and measurement unc ...
Brushless DC electric motor
Brushless DC electric motor (BLDC motors, BL motors) also known as electronically commutated motors (ECMs, EC motors) are synchronous motors that are powered by a DC electric source via an integrated inverter/switching power supply, which produces an AC electric signal to drive the motor. In this context, AC, alternating current, does not imply a sinusoidal waveform, but rather a bi-directional current with no restriction on waveform. Additional sensors and electronics control the inverter output amplitude and waveform (and therefore percent of DC bus usage/efficiency) and frequency (i.e. rotor speed).The rotor part of a brushless motor is often a permanent magnet synchronous motor, but can also be a switched reluctance motor, or induction motor.Brushless motors may be described as stepper motors; however, the term stepper motor tends to be used for motors that are designed specifically to be operated in a mode where they are frequently stopped with the rotor in a defined angular position. This page describes more general brushless motor principles, though there is overlap.Two key performance parameters of brushless DC motors are the motor constants Kv and Km.