Performance Improvement in a DFIG - based Wind Farm
... operation during faults in the power system. As a result of grid fault, voltage drop occurs at the point of connection of the wind turbine system. This leads to overcurrent in the stator winding of DFIG, which then flows to the rotor circuit due to magnetic coupling between stator and rotor. As a re ...
... operation during faults in the power system. As a result of grid fault, voltage drop occurs at the point of connection of the wind turbine system. This leads to overcurrent in the stator winding of DFIG, which then flows to the rotor circuit due to magnetic coupling between stator and rotor. As a re ...
A Simple Computational Electromagnetic Analysis Example
... point of view. The worst case analysis was envisioned by using the largest electric field magnitude recorded at LC-17, which correspondedto that of 222.5 V/M (5.692 GHz radar), and use this level as the incident plane wave acrossthe frequency spectrum of interest (1.6--6.0 GHz). The effects of apert ...
... point of view. The worst case analysis was envisioned by using the largest electric field magnitude recorded at LC-17, which correspondedto that of 222.5 V/M (5.692 GHz radar), and use this level as the incident plane wave acrossthe frequency spectrum of interest (1.6--6.0 GHz). The effects of apert ...
Thyristor Gate Drive Circuit
... • Stray inductance in series with high-voltage side of power device Qsw causes overvoltage at turnoff. • Stray inductance in series with low-voltage side power device Qsw can cause oscill-ations at turn- on and turn-off. • One cm of unshielded lead has about 5 nH of series inductance. ...
... • Stray inductance in series with high-voltage side of power device Qsw causes overvoltage at turnoff. • Stray inductance in series with low-voltage side power device Qsw can cause oscill-ations at turn- on and turn-off. • One cm of unshielded lead has about 5 nH of series inductance. ...
ME 6405 – Intro to Mechatronics Operational Amplifiers
... OP AMP tries to make the voltage difference between the inverting and the non inverting input to zero ...
... OP AMP tries to make the voltage difference between the inverting and the non inverting input to zero ...
DC Machines
... circuit • When the generator is loaded, the load current produces a voltage drop on the rotor winding resistance. • In addition, there is a more or less constant 1–3 V voltage drop on the brushes. • These two voltage drops reduce the terminal voltage of the generator. The terminal voltage is; ...
... circuit • When the generator is loaded, the load current produces a voltage drop on the rotor winding resistance. • In addition, there is a more or less constant 1–3 V voltage drop on the brushes. • These two voltage drops reduce the terminal voltage of the generator. The terminal voltage is; ...
programmable countdown time switch
... programmed on-time expires. It replaces standard single-pole wall switches for energy savings inside and outside. ...
... programmed on-time expires. It replaces standard single-pole wall switches for energy savings inside and outside. ...
Electric Safety - University of Washington
... • During a weather storm, an atmospheric discharge hits a lightning pole. The pole is grounded through a hemisphere, and the maximum lightning current through the pole is 20,000A. – A person is playing golf 30 meters away from the center of the hemisphere. The distance between his feet is 0.3m, and ...
... • During a weather storm, an atmospheric discharge hits a lightning pole. The pole is grounded through a hemisphere, and the maximum lightning current through the pole is 20,000A. – A person is playing golf 30 meters away from the center of the hemisphere. The distance between his feet is 0.3m, and ...
EE 101 Lab 6 Matlab Intro
... MatlabTM is a software package intended for use by engineers and scientists in solving complex problems. The name “Matlab” is short for “matrix lab,” since Matlab is very efficient at processing arrays and matrices of numbers. One generally interacts with Matlab by typing special words and symbols i ...
... MatlabTM is a software package intended for use by engineers and scientists in solving complex problems. The name “Matlab” is short for “matrix lab,” since Matlab is very efficient at processing arrays and matrices of numbers. One generally interacts with Matlab by typing special words and symbols i ...
basics of acceleration measurements!
... Changing FFT resolution to check for discrete structural frequencies. ...
... Changing FFT resolution to check for discrete structural frequencies. ...
Solar Simulation Standards and QuickSun® Measurement System
... Can be applied to all PV technologies, but spectral match criteria designed for c-Si For performance measurements a class CBA simulator is the minimum ...
... Can be applied to all PV technologies, but spectral match criteria designed for c-Si For performance measurements a class CBA simulator is the minimum ...
for t>0.
... Exercise. Constant differential equation models for the parallel RL and RC circuits of the figure. Note that these circuits are Norton equivalents of those in the figure. Again choose iL(t) as the response for the RL circuit and uC(t) as the response for the RC circuit. ...
... Exercise. Constant differential equation models for the parallel RL and RC circuits of the figure. Note that these circuits are Norton equivalents of those in the figure. Again choose iL(t) as the response for the RL circuit and uC(t) as the response for the RC circuit. ...
DC-machines
... Back emf The induced emf in the rotating armature conductors always acts in the opposite direction of the supply voltage . According to the Lenz’s law, the direction of the induced emf is always so as to oppose the cause producing it . In a DC motor , the supply voltage is the cause and hence this ...
... Back emf The induced emf in the rotating armature conductors always acts in the opposite direction of the supply voltage . According to the Lenz’s law, the direction of the induced emf is always so as to oppose the cause producing it . In a DC motor , the supply voltage is the cause and hence this ...
Microphone Circuit
... should be AC-coupled to the amplifier through a large-value DC blocking capacitor. The pull-up resistor R determines the output impedance of the device, and sets the bias voltage on the FET buffer. The FET typically draws about 0.1-0.2 mA, and can operate over a wide range of voltages, so the choice ...
... should be AC-coupled to the amplifier through a large-value DC blocking capacitor. The pull-up resistor R determines the output impedance of the device, and sets the bias voltage on the FET buffer. The FET typically draws about 0.1-0.2 mA, and can operate over a wide range of voltages, so the choice ...
Digitally Controlled Pulse Width Modulator for On
... signal. A signal with a greater duty cycle causes more charge to accumulate on C1 , increasing the output voltage of the DC2V converter. The proposed DC2V converter controls the bias current from the header circuitry through negative feedback, mitigating PVT variations. Intuitively, when the header ...
... signal. A signal with a greater duty cycle causes more charge to accumulate on C1 , increasing the output voltage of the DC2V converter. The proposed DC2V converter controls the bias current from the header circuitry through negative feedback, mitigating PVT variations. Intuitively, when the header ...
IOSR Journal of VLSI and Signal Processing (IOSR-JVSP)
... Fig. 1. Shows the circuit description of frequency divider ...
... Fig. 1. Shows the circuit description of frequency divider ...
Signals
... – information sources can include microphones, sensors, and measuring devices, such as thermometers and scales – destinations can include audio output devices such as earphones and loud speakers as well as devices such as LEDs that emit light ...
... – information sources can include microphones, sensors, and measuring devices, such as thermometers and scales – destinations can include audio output devices such as earphones and loud speakers as well as devices such as LEDs that emit light ...
74CBTLV3861 1. General description 10-bit bus switch with output enable
... LOW, the switch is closed and port A is connected to the B port. When OE is HIGH, the switch is disabled. To ensure the high-impedance OFF-state during power-up or power-down, OE should be tied to the VCC through a pull-up resistor. The minimum value of the resistor is determined by the current-sink ...
... LOW, the switch is closed and port A is connected to the B port. When OE is HIGH, the switch is disabled. To ensure the high-impedance OFF-state during power-up or power-down, OE should be tied to the VCC through a pull-up resistor. The minimum value of the resistor is determined by the current-sink ...
33120A Function Waveform Generator
... The front panel has two rows of keys to select various functions and operations. Most keys have a shifted function printed in blue above the key. To perform a shifted function, press Shift (the Shift annunciator will turn on). Then, press the key that has the desired label above it. For example, to ...
... The front panel has two rows of keys to select various functions and operations. Most keys have a shifted function printed in blue above the key. To perform a shifted function, press Shift (the Shift annunciator will turn on). Then, press the key that has the desired label above it. For example, to ...
Lecture Notes EEE 360
... circuit • When the generator is loaded, the load current produces a voltage drop on the rotor winding resistance. • In addition, there is a more or less constant 1–3 V voltage drop on the brushes. • These two voltage drops reduce the terminal voltage of the generator. The terminal voltage is; ...
... circuit • When the generator is loaded, the load current produces a voltage drop on the rotor winding resistance. • In addition, there is a more or less constant 1–3 V voltage drop on the brushes. • These two voltage drops reduce the terminal voltage of the generator. The terminal voltage is; ...
MAX1606 28V Internal Switch LCD Bias Supply with True Shutdown General Description
... The MAX1606 is a step-up DC-DC converter that contains a 0.5A internal power switch and a 0.5A output isolation switch in an 8-pin µMAX package. The IC operates from a 2.4V to 5.5V supply voltage but can boost battery voltages as low as 0.8V up to 28V. The MAX1606 uses a unique control scheme that p ...
... The MAX1606 is a step-up DC-DC converter that contains a 0.5A internal power switch and a 0.5A output isolation switch in an 8-pin µMAX package. The IC operates from a 2.4V to 5.5V supply voltage but can boost battery voltages as low as 0.8V up to 28V. The MAX1606 uses a unique control scheme that p ...
4100ES Fire Control Panels
... Digital or analog input audio amplifiers with integral on-board NACs Power supplies with or without battery chargers City Connect modules and RS-232 ports for printers or ...
... Digital or analog input audio amplifiers with integral on-board NACs Power supplies with or without battery chargers City Connect modules and RS-232 ports for printers or ...
Opto-isolator
In electronics, an opto-isolator, also called an optocoupler, photocoupler, or optical isolator, is a component that transfers electrical signals between two isolated circuits by using light. Opto-isolators prevent high voltages from affecting the system receiving the signal. Commercially available opto-isolators withstand input-to-output voltages up to 10 kV and voltage transients with speeds up to 10 kV/μs.A common type of opto-isolator consists of an LED and a phototransistor in the same opaque package. Other types of source-sensor combinations include LED-photodiode, LED-LASCR, and lamp-photoresistor pairs. Usually opto-isolators transfer digital (on-off) signals, but some techniques allow them to be used with analog signals.