AN ALTERNATIVE CONFIGURATION FOR DIGITALLY CONTROLLED PARALLEL CONNECTED DC–DC POWER CONVERTERS
... 1) Provision for interleaving: digital controller can implement interleaving in paralleled converters more easily than analog controller [3]; 2) Allow easy implementation of different current programming schemes, control structures, and complicated control laws, through software codings and revision ...
... 1) Provision for interleaving: digital controller can implement interleaving in paralleled converters more easily than analog controller [3]; 2) Allow easy implementation of different current programming schemes, control structures, and complicated control laws, through software codings and revision ...
loads.
... In variable-torque applications suited for Volts-per-Hertz (V/Hz) drive control, AC motor characteristics require that the voltage magnitude of the inverter's output to the motor be adjusted to match the required load torque in a linear V/Hz relationship. For example, for 460 V, 60 Hz motors, this l ...
... In variable-torque applications suited for Volts-per-Hertz (V/Hz) drive control, AC motor characteristics require that the voltage magnitude of the inverter's output to the motor be adjusted to match the required load torque in a linear V/Hz relationship. For example, for 460 V, 60 Hz motors, this l ...
Control of Dynamic Discrete-Event Systems
... Construct a limited-depth tree of the possible future behavior of the system For each node, determine if the string leading to it is acceptable Propagate the information back to the root Disable events leading to “unsafe” states ...
... Construct a limited-depth tree of the possible future behavior of the system For each node, determine if the string leading to it is acceptable Propagate the information back to the root Disable events leading to “unsafe” states ...
Temperature Control Solutions
... is able to substantially reduced design costs and time while delivering a highly reliable custom solution. Our philosophy is that you do not need to reinvent-the-wheel for every custom design. Furthermore, by reusing these building blocks, we substantially reduce the cost of a custom control. All Du ...
... is able to substantially reduced design costs and time while delivering a highly reliable custom solution. Our philosophy is that you do not need to reinvent-the-wheel for every custom design. Furthermore, by reusing these building blocks, we substantially reduce the cost of a custom control. All Du ...
read through our EC Slideshow - Master Control Systems, Inc.
... • Master EC - Uses “Air-gap” isolated circuitry to keep power off of critical control circuits until the fire pump start sequence is initiated. • Others – Connect the control circuitry to the power line all the time leaving the the controller susceptible to damaging power ...
... • Master EC - Uses “Air-gap” isolated circuitry to keep power off of critical control circuits until the fire pump start sequence is initiated. • Others – Connect the control circuitry to the power line all the time leaving the the controller susceptible to damaging power ...
3ème conférence Internationale des énergies renouvelables CIER
... variable frequency rotor voltage allows fixed-frequency electric power generation from the generator stator. One of the main advantages of these generators is that, if rotor current is governed applying stator-flux-oriented vector control—carried out using commercial double-sided PWM inverters [1][2 ...
... variable frequency rotor voltage allows fixed-frequency electric power generation from the generator stator. One of the main advantages of these generators is that, if rotor current is governed applying stator-flux-oriented vector control—carried out using commercial double-sided PWM inverters [1][2 ...
Control Cabinet Type A31-P*-*****
... With the Control Cabinet only separate tested or certified components like terminals, switches and Control and signal units are used. Not used holes for cable glands or operators have to be closed by certified plugs. Assembly and safety instruction of the component manufacturer must be considered. A ...
... With the Control Cabinet only separate tested or certified components like terminals, switches and Control and signal units are used. Not used holes for cable glands or operators have to be closed by certified plugs. Assembly and safety instruction of the component manufacturer must be considered. A ...
sensorless drive for high-speed brushless dc motor
... Meanwhile, it is well known that the BLDC motor requires six discrete rotor positions for the inverter operation. These are typically generated by Hall sensors mounted on a motor. However, it is a well-known fact that these sensors increase the cost of the motor and need special mechanical arrangeme ...
... Meanwhile, it is well known that the BLDC motor requires six discrete rotor positions for the inverter operation. These are typically generated by Hall sensors mounted on a motor. However, it is a well-known fact that these sensors increase the cost of the motor and need special mechanical arrangeme ...
Isolated 4 to 20 mA Transmitters For Demanding Applications
... equipment. The isolation provided by the transmitter protects the receiving equipment and prevents ground loops between the remote signal ground and the ground of the control room. ...
... equipment. The isolation provided by the transmitter protects the receiving equipment and prevents ground loops between the remote signal ground and the ground of the control room. ...
NSIT ICE complete syllabus
... time signals, unit step, ramp and impulse, differential and difference equation, formulation for linear timeinvariant (LTI) continuous time and discrete-time systems. Review of Laplace transform (LT) properties and solution of differential equation using T, waveform synthesis and LT of complex wave ...
... time signals, unit step, ramp and impulse, differential and difference equation, formulation for linear timeinvariant (LTI) continuous time and discrete-time systems. Review of Laplace transform (LT) properties and solution of differential equation using T, waveform synthesis and LT of complex wave ...
... using permanent magnets (PM). In general, FOC provides an efficient way to control BLDC motor in adjustable speed drive applications that have quickly changing loads, and can improve the power efficiency of an AC induction motor, especially at lower speeds. For this reason, some designers mistakenly ...
500 w ER11 spindle brushless motor parameters
... 1, brushless, low interference, in addition to the brushless motor brush, the most immediate change is no brush spark generated when the motor running, thus greatly reduce the electric spark interference of remote radio equipment. 2, low noise, smooth operation, brushless motor without brush, less f ...
... 1, brushless, low interference, in addition to the brushless motor brush, the most immediate change is no brush spark generated when the motor running, thus greatly reduce the electric spark interference of remote radio equipment. 2, low noise, smooth operation, brushless motor without brush, less f ...
bldc motor controller specification
... motor controller。Voltage range is from 20VDC to 50VDC。The controller can drive the DLDC motor with HALL or without HALL。 The driver is based on advanced technology and be provided with high speed、 high torque、low noise、low vibration，over current protection，overload protection， less phase line protec ...
... motor controller。Voltage range is from 20VDC to 50VDC。The controller can drive the DLDC motor with HALL or without HALL。 The driver is based on advanced technology and be provided with high speed、 high torque、low noise、low vibration，over current protection，overload protection， less phase line protec ...
Sector Phase Control Unit
... goes through a Phase Shifter which is controlled by a Digital to Analog Converter under control of the local microprocessor. The Phase Shifter’s output is routed to an RF switching matrix. Fiber Input B: This function block is identical to the Fiber Input A block described above, with the exception ...
... goes through a Phase Shifter which is controlled by a Digital to Analog Converter under control of the local microprocessor. The Phase Shifter’s output is routed to an RF switching matrix. Fiber Input B: This function block is identical to the Fiber Input A block described above, with the exception ...
Benchmark: DC-to-DC Switched-Mode Power
... of S in each of Figures 1, 2, and 3). Mode switches from open to closed occur every D · T seconds and from closed to open every (1 − D)T time, where D is the duty cycle and T = f1 is the switching period corresponding to a switching frequency f . The converters’ specifications are to transform a sou ...
... of S in each of Figures 1, 2, and 3). Mode switches from open to closed occur every D · T seconds and from closed to open every (1 − D)T time, where D is the duty cycle and T = f1 is the switching period corresponding to a switching frequency f . The converters’ specifications are to transform a sou ...
Development of A Super High-Speed Permanent Magnet
... when switching frequency is within some range. Detailed analysis of the switching frequency effect for whole system exceeds the coverage of this paper. Programmable dead time is added to avoid short circuit. This occurs in the voltage source inverter due to charging and discharging MOSFET capacitors ...
... when switching frequency is within some range. Detailed analysis of the switching frequency effect for whole system exceeds the coverage of this paper. Programmable dead time is added to avoid short circuit. This occurs in the voltage source inverter due to charging and discharging MOSFET capacitors ...
Outline
... • Steer load voltage to desired reference value • Maintain regulation in face of voltage source/load variations ...
... • Steer load voltage to desired reference value • Maintain regulation in face of voltage source/load variations ...
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.