A Novel Approach of Position Estimation, Fuzzy based PFC
... variable, and analyses it according to user- ...
... variable, and analyses it according to user- ...
Optimal Efficiency Controller of AC Drive System
... electrical energy is consumed by electric motors in industry. Therefore, motor energy saving solutions by increasing its efficiency has received considerable attention during the last three decades due to the increase in energy cost [1] & [2]. 2- Three-phase asynchronous motors, especially the squir ...
... electrical energy is consumed by electric motors in industry. Therefore, motor energy saving solutions by increasing its efficiency has received considerable attention during the last three decades due to the increase in energy cost [1] & [2]. 2- Three-phase asynchronous motors, especially the squir ...
Aalborg Universitet Microgrids
... controller, respectively. ωcV and ωcI represent voltage and current controllers cut-off frequencies, respectively. In order to design these controllers, the closed-loop transfer function of local control system is extracted [8]. Bode diagram of this transfer function using the power stage and local ...
... controller, respectively. ωcV and ωcI represent voltage and current controllers cut-off frequencies, respectively. In order to design these controllers, the closed-loop transfer function of local control system is extracted [8]. Bode diagram of this transfer function using the power stage and local ...
Space Vector Control of a Three-Phase Rectifier using
... clamped to the positive or negative rail of the DC only called by the solver at these instants. bus rather than switched. This modulation strategy therefore minimizes the number of switch tran- To sequence the switching vectors, the two PWM sitions that occur during a single switching period. output ...
... clamped to the positive or negative rail of the DC only called by the solver at these instants. bus rather than switched. This modulation strategy therefore minimizes the number of switch tran- To sequence the switching vectors, the two PWM sitions that occur during a single switching period. output ...
Aalborg Universitet
... feedback controls [8]-[12]. Some of them may also lower the system order by using multi-variable feedback controls [13]-[15]. However, multi-variable feedback control lifts the cost of the sensors and makes the control strategy more complicated. Therefore, in [4], a filter-based active damping solut ...
... feedback controls [8]-[12]. Some of them may also lower the system order by using multi-variable feedback controls [13]-[15]. However, multi-variable feedback control lifts the cost of the sensors and makes the control strategy more complicated. Therefore, in [4], a filter-based active damping solut ...
Topics in Self-Powered Controllers
... The TV remote control is an exciting pursuit for self-powered technology researchers because it is a device nearly everyone uses. Not only does nearly everyone use it, but also nearly everyone enjoys using it! In concept, the TV remote control is a multi-function switch. It sends a signal to a powe ...
... The TV remote control is an exciting pursuit for self-powered technology researchers because it is a device nearly everyone uses. Not only does nearly everyone use it, but also nearly everyone enjoys using it! In concept, the TV remote control is a multi-function switch. It sends a signal to a powe ...
Optimization and Control of Agent
... in reference to its intended use with respect to its referent (in this case, the search for practically implementable control strategies). (4) By virtue of being “sufficiently complex” proxy systems, information and knowledge obtained by examining ABMs subject to control may provide insight into how ...
... in reference to its intended use with respect to its referent (in this case, the search for practically implementable control strategies). (4) By virtue of being “sufficiently complex” proxy systems, information and knowledge obtained by examining ABMs subject to control may provide insight into how ...
AutomationNotebook Issue 5
... and the Vout terminal. This allows any logic device, PLC or remote I/O node to activate or deactivate the power supply output power for easy system startup/shutdown or maintenance purposes. RHINO PSM power supplies also include multiple output terminals to facilitate wiring in parallel load configur ...
... and the Vout terminal. This allows any logic device, PLC or remote I/O node to activate or deactivate the power supply output power for easy system startup/shutdown or maintenance purposes. RHINO PSM power supplies also include multiple output terminals to facilitate wiring in parallel load configur ...
drives mm - Siemens Industry, Inc.
... Dynamic braking electronic control unit to be built into the control unit up to 100HP. Injection and Compound braking shall also be provided for rapid controlled braking. Four skip frequencies. The manufacturer of the VFD to provide digital keypad/display capable of controlling the drive and setting ...
... Dynamic braking electronic control unit to be built into the control unit up to 100HP. Injection and Compound braking shall also be provided for rapid controlled braking. Four skip frequencies. The manufacturer of the VFD to provide digital keypad/display capable of controlling the drive and setting ...
EE362L_PWM_H_Bridge_Inverter
... switch A– , so voltage Va = Vdc Vcont < Vtri , open switch A+, close switch A– , so voltage Va = 0 –Vcont > Vtri , close switch B+, open switch B– , so voltage Vb = Vdc –Vcont < Vtri , open switch B+, close switch B– , so voltage Vb = 0 ...
... switch A– , so voltage Va = Vdc Vcont < Vtri , open switch A+, close switch A– , so voltage Va = 0 –Vcont > Vtri , close switch B+, open switch B– , so voltage Vb = Vdc –Vcont < Vtri , open switch B+, close switch B– , so voltage Vb = 0 ...
Systron-Donner Series 80 - Computer History Museum
... Reset - applies initial condition voltages to integrators. Rep-Op - places integrators into a repetitive operation cycle. Compute time variable from 5 msec to 10 sec. Ballpot Set - disconnects junction and grounds the input resistor summing junctions of all amplifiers. Each amplifier is converted to ...
... Reset - applies initial condition voltages to integrators. Rep-Op - places integrators into a repetitive operation cycle. Compute time variable from 5 msec to 10 sec. Ballpot Set - disconnects junction and grounds the input resistor summing junctions of all amplifiers. Each amplifier is converted to ...
Control techniques for three-phase four
... method in each phase comprises a resonant-filter bank in combination with a Proportional (P) controller, a capacitor current feedback loop and a feedforward voltage loop. The main reason behind using the resonant-filter bank is to obtain a very high gain at a desired resonant frequency and zero gain e ...
... method in each phase comprises a resonant-filter bank in combination with a Proportional (P) controller, a capacitor current feedback loop and a feedforward voltage loop. The main reason behind using the resonant-filter bank is to obtain a very high gain at a desired resonant frequency and zero gain e ...
Aalborg Universitet Shafiee, Qobad; Guerrero, Josep M.; Quintero, Juan Carlos Vasquez
... communications, in order to achieve global controllability of the MG, secondary control is often used. The conventional secondary control approach relays on using a MicroGrid Central Controller (MGCC), which includes slow controls loops and low bandwidth communication systems in order to measure som ...
... communications, in order to achieve global controllability of the MG, secondary control is often used. The conventional secondary control approach relays on using a MicroGrid Central Controller (MGCC), which includes slow controls loops and low bandwidth communication systems in order to measure som ...
AVR449: Sinusoidal driving of 3-phase
... Organization of the look-up table is a trade-off between access time and look-up table size. Looking at the waveforms in Figure 3-3, it can be seen that the information can be “compressed” in several ways. The three waveforms are phase shifted by 120 degrees, so it is possible to only store one wave ...
... Organization of the look-up table is a trade-off between access time and look-up table size. Looking at the waveforms in Figure 3-3, it can be seen that the information can be “compressed” in several ways. The three waveforms are phase shifted by 120 degrees, so it is possible to only store one wave ...
Rotor side Control of High Power Slip Ring Induction Motor using a
... expected. A wide range of other triggers depending on the desired characteristics can be chosen[11]. Output Plots & Analysis Upon analysis of the output we can have the following results as interpreted from the SIMULATION. Basic speed of the machine rotor is 1498.93 RPM. (Synchronous speed is 1500 R ...
... expected. A wide range of other triggers depending on the desired characteristics can be chosen[11]. Output Plots & Analysis Upon analysis of the output we can have the following results as interpreted from the SIMULATION. Basic speed of the machine rotor is 1498.93 RPM. (Synchronous speed is 1500 R ...
C21146V Manual - Nu-Way
... observed. – On commissioning the wiring has to be carefully checked according the appropriate diagram, Incorrect wiring can damage the unit and endanger the installation. – The fuse rating has to ensure that the limits specified in TECHNICAL DATA will not be exceed. If these precautions are not obse ...
... observed. – On commissioning the wiring has to be carefully checked according the appropriate diagram, Incorrect wiring can damage the unit and endanger the installation. – The fuse rating has to ensure that the limits specified in TECHNICAL DATA will not be exceed. If these precautions are not obse ...
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.