Adjustable Speed Drives
... ASD Considerations • ASD’s generate harmonic voltages and currents which can, in some cases, cause undesirable effects on the electrical distribution system and affect equipment operation. • Longer Cable Lengths can cause a voltage reflection of up to two times the applied voltage due to standing w ...
... ASD Considerations • ASD’s generate harmonic voltages and currents which can, in some cases, cause undesirable effects on the electrical distribution system and affect equipment operation. • Longer Cable Lengths can cause a voltage reflection of up to two times the applied voltage due to standing w ...
Automated Coffee Machine
... jack. If the right RJ-45 jack is included in the design, the transformers as well as transmit/receive or activity/link LED's are integrated and won't have to be designed into the circuit. ...
... jack. If the right RJ-45 jack is included in the design, the transformers as well as transmit/receive or activity/link LED's are integrated and won't have to be designed into the circuit. ...
Devtech Lighting Control Gear.cdr
... powerline network feeder and Intelligent Streetlight control SCADA so ware (Standalone / Web based server applica on) for remote monitoring. Controlling opera ons and data acquisi on of electrical parameters from off-site loca on with energy savings up to 50% and reduced maintenance opera ng cost. Sa ...
... powerline network feeder and Intelligent Streetlight control SCADA so ware (Standalone / Web based server applica on) for remote monitoring. Controlling opera ons and data acquisi on of electrical parameters from off-site loca on with energy savings up to 50% and reduced maintenance opera ng cost. Sa ...
DY23743747
... It’s difficult to stop the entire running system of industry may be motor disorder is due to variation in internal fields or external fields. Internal fields like torque, voltage variation which can be controlled by vector control methods, and external fields like dust particles, brush disorder, dec ...
... It’s difficult to stop the entire running system of industry may be motor disorder is due to variation in internal fields or external fields. Internal fields like torque, voltage variation which can be controlled by vector control methods, and external fields like dust particles, brush disorder, dec ...
RTM II
... system and endpoints that enable a utility to remotely monitor, coordinate, and operate automation components in a real-time mode from remote locations. – DA Endpoints monitor/control field equipment – Information is reported to Host System using FlexNet or Cellular radios – Information is made avai ...
... system and endpoints that enable a utility to remotely monitor, coordinate, and operate automation components in a real-time mode from remote locations. – DA Endpoints monitor/control field equipment – Information is reported to Host System using FlexNet or Cellular radios – Information is made avai ...
eet 307 power electronics 2005-2006
... Vout V and out transfer functions are both dependent on Ein and require time therefore before Vc Ein a response can be made. Voltage Feedforward systems in which the ramp slope is not constant but varies dependent on the input voltage can eliminate this. ...
... Vout V and out transfer functions are both dependent on Ein and require time therefore before Vc Ein a response can be made. Voltage Feedforward systems in which the ramp slope is not constant but varies dependent on the input voltage can eliminate this. ...
en_7-40A
... Abstract — A problem of optimal stabilization of the injected gas and production rate of oil wells by gas lift method is considered. Under certain natural assumptions, the general problem is reduced to the linear quadratic control problem ( LQCP) that allows one to find program controls and trajecto ...
... Abstract — A problem of optimal stabilization of the injected gas and production rate of oil wells by gas lift method is considered. Under certain natural assumptions, the general problem is reduced to the linear quadratic control problem ( LQCP) that allows one to find program controls and trajecto ...
555
... Compound loop control positions a chlorine valve based on chlorine residual measurement and water flow measurement. The residual control signal trims (modifies) the valve position signal generated by flow proportioning control. Ease of use is provided by continuous readout of chlorine residual, resi ...
... Compound loop control positions a chlorine valve based on chlorine residual measurement and water flow measurement. The residual control signal trims (modifies) the valve position signal generated by flow proportioning control. Ease of use is provided by continuous readout of chlorine residual, resi ...
Current Mode Control Techniques for the Reduction of THD
... evaluated through computer simulation using Simulink software. The parameters of the APFC circuit are given in Table III. The dc side inductance is chosen so that the line current can change rapidly to track the sinusoidal reference Fig3. Block diagram of fuzzy controller variation. The input and ou ...
... evaluated through computer simulation using Simulink software. The parameters of the APFC circuit are given in Table III. The dc side inductance is chosen so that the line current can change rapidly to track the sinusoidal reference Fig3. Block diagram of fuzzy controller variation. The input and ou ...
Optimization-based Formation Reconfiguration Planning For
... State-space exploration [Alur-Henzinger, Sifakis, Pappas-LafferrierSastry] ...
... State-space exploration [Alur-Henzinger, Sifakis, Pappas-LafferrierSastry] ...
Power Converters in Accelerators
... Compared to a single SMPS, for the same output voltage • PSM output ripple magnitude is limited to Vdc /N and in some cases even vanishes ideally • f↑ → C↓ → lower stored energy → crowbarless operation → easier protection just by cutting off gate drive • Though output frequency is Nf, each power swi ...
... Compared to a single SMPS, for the same output voltage • PSM output ripple magnitude is limited to Vdc /N and in some cases even vanishes ideally • f↑ → C↓ → lower stored energy → crowbarless operation → easier protection just by cutting off gate drive • Though output frequency is Nf, each power swi ...
V/F Speed Control Of Three Phase Induction Motor By Using Plc
... problem such as overvoltage, over current, overload, over temperature, under voltage, occurring in the course of its operation is very important because of it is used intensively industry as an actuator. IMs can be protected using some components such as timers, contactors, voltage and current relay ...
... problem such as overvoltage, over current, overload, over temperature, under voltage, occurring in the course of its operation is very important because of it is used intensively industry as an actuator. IMs can be protected using some components such as timers, contactors, voltage and current relay ...
JACE®-NXT
... any building control environment. JACEs connect to system field busses and provide real-time control functions as constant streams of data from individual systems, and are instantly transformed to a common object model within the device. Functioning as a fully distributed system when multiple units ...
... any building control environment. JACEs connect to system field busses and provide real-time control functions as constant streams of data from individual systems, and are instantly transformed to a common object model within the device. Functioning as a fully distributed system when multiple units ...
AN OVERVIEW OF A CONTINUOUS MONITORING AND CONTROL
... The speed and accuracy of the operation can be greatly enhanced using this type of control system. But the biggest benefit in using a PLC is the ability to change and replicate the operation or process while collecting and communicating vital information. Since there were problems related to large e ...
... The speed and accuracy of the operation can be greatly enhanced using this type of control system. But the biggest benefit in using a PLC is the ability to change and replicate the operation or process while collecting and communicating vital information. Since there were problems related to large e ...
Control theory
Control theory is an interdisciplinary branch of engineering and mathematics that deals with the behavior of dynamical systems with inputs, and how their behavior is modified by feedback. The usual objective of control theory is to control a system, often called the plant, so its output follows a desired control signal, called the reference, which may be a fixed or changing value. To do this a controller is designed, which monitors the output and compares it with the reference. The difference between actual and desired output, called the error signal, is applied as feedback to the input of the system, to bring the actual output closer to the reference. Some topics studied in control theory are stability (whether the output will converge to the reference value or oscillate about it), controllability and observability.Extensive use is usually made of a diagrammatic style known as the block diagram. The transfer function, also known as the system function or network function, is a mathematical representation of the relation between the input and output based on the differential equations describing the system.Although a major application of control theory is in control systems engineering, which deals with the design of process control systems for industry, other applications range far beyond this. As the general theory of feedback systems, control theory is useful wherever feedback occurs. A few examples are in physiology, electronics, climate modeling, machine design, ecosystems, navigation, neural networks, predator-prey interaction, gene expression, and production theory.