AC wound rotor motors are widely used in lifts and elevators. AC wound rotor motors are designed to withstand high mechanical forces so, thses motors are used for high torque applications. AC wound rotor motor can be used for soft starts and adjustable speeds. Suitable control system is necessary for this motor, otherwise it can’t be used effectively. they need more advanced control mechanisms so that passengers can operate the elevator inside the lift itself. The control system regulates the entire movement of elevators. In multi-story buildings system keeps track all the up-calls and down-calls and when the call is made by passengers. Calls are made by a keypad controller. . Also, the system should calculate the start-up torque. This is done by a variable voltage regulator. This voltage is controlled by a variable resistor. When passengers enter into elevator, the controlling system initially put some voltage by decreasing resistance. It keeps increasing voltage by decreasing resistance until the motion sensor sense any movement of the lift. When the lift starts to move to the right direction, the system stops applying more voltage. So, it keeps constant voltage for that specific journey. An elevator`s function is to convert electrical power, which runs he motor ,into mechanical power. The elevator has a motor and a worn gear motor. A worm gear system is made up of a worm gear, typically called the worm, and a larger round gear, typically called the worm gear. These two gears have rotational axes and they are perpendicular to each other. These two gears decrease the rotational speed and also change the plane of rotation. By decreasing the rotation speed, with the…
LESSON PLAN PART II, TEACHING GUIDE
UNIT TIME: 15 Min(s)
ATTENTION: Superman, Batman, Green Lantern, Catwoman…These are all movies but they all most importantly share….is that they are all from DC Comics.
MOTIVATION: Comic Books as the actor Nicolas Cage once said “Are Modern mythology, they reflect our fears, embody our ideal, and personalize our culture.”
I have a story I wanna share. When I was 4 I read my first Superman…
General Motors Company
Cost Accounting – ACC 350
December, 16th 2012
* For most of the 20th century, General Motors (GM) has been one of the biggest manufactures of cars in the world. GM led in industry innovations and stood the largest car producer from 1931 to 2008. On 2008, the financial crises brought into GM one of the largest corporate falls in history. GM found itself on a terrible cash flow position. It had to declare bankruptcy and became…
MSc Systems Engineering and Engineering Management
Advanced Control Technology (EEM4015)
Design Control Systems Using PID Controller and Fuzzy Logic Controller with MATLAB/SIMULINK
Name: Jing Qian
Student No: 0807789
Tutor teacher: ErPing Zhou
An electric motor is an electric machine that converts electrical energy into mechanical energy.
In normal motoring mode, most electric motors operate through the interaction between an electric motor's magnetic field and winding currents to genelectric motor is an electric machine that converts electrical energy into mechanical energy.
In normal motoring mode, most electric motors operate through the interaction between an electric motor's magnetic field and winding currents to generate force…
A DCS typically uses custom designed processors as controllers and uses both proprietary interconnections and standard communications protocol for communication. Input and output modules form component parts of the DCS. The processor receives information from input modules and sends information to output modules. The input modules receive information from input instruments in the process (or field) and the output modules transmit instructions to the output instruments in the field. The inputs and…
Multi Loop PID Controller Robotic Arm Manipulator
Department of Electrical and computer Engineering, WPI
The precise control upon each degree of freedom of a robotic arm is a great challenge in implementing industrial work.
This paper aims to design a novel controller for an automated robotic arm. A discrete Proportional Integral Derivative
(PID) control technique is being used to replace the complex electronic circuitry, which would greatly reduce…
10-135 Toy Motor Assembly
D r. Fa t m a A r s l a n
Electrical and Computer
The Universal motor is a type of electric
motor that can operate on both AC or DC
The motor is a device that converts
electrical energy into mechanical energy.
The electric motor is very common in our
Parts & Tools
Two Wire,100 cm Long Coil.
Two Armature Halves
BMW: The 7-Series Project (A)
As he accelerated past the security gates of BMW’s Research and Engineering Center, Carl-Peter
Forster, director of Prototype and Pilot Manufacturing, thought about the 7-series project meeting. It
was June 12, 1991, exactly two years, eight months, and five days until the scheduled start of
production of the completely redesigned 7-series luxury sedan. The project, code-named E-99, was
reaching a critical milestone. Over the next several months, engineering prototypes1…
Principles of operation
In any electric motor, operation is based on simple electromagnetism. A current-carrying conductor generates a magnetic field; when this is then placed in an external magnetic field, it will experience a force proportional to the current in the conductor, and to the strength of the external magnetic field. As you are well aware of from playing with magnets as a kid, opposite (North and South) polarities attract, while like polarities (North and North, South and South) repel…
General Motors was founded in September of 1908 by William Durant during a time that there were less than 8,000 in the United States. Durant was already known in Flint, Michigan for his horse drawn vehicles. “At its inception GM held only the Buick Motor Company, but in a matter of years would acquire more than 20 companies including Oldsmobile, Cadillac, and Oakland, today known as Pontiac.”(History & Heritage-Creation,” 2014) General Motors set the tone in the automobile industry with design…