COMPARISON OF CONTROL ALGORITHMS FOR SHUNT ACTIVE
... The Active Power Filter uses power electronic switching to generate harmonic currents that cancel harmonic content from non – linear loads. One of the cornerstones of the active filter is its control strategy that is implemented in the active filter controller. The performance of an active filter de ...
... The Active Power Filter uses power electronic switching to generate harmonic currents that cancel harmonic content from non – linear loads. One of the cornerstones of the active filter is its control strategy that is implemented in the active filter controller. The performance of an active filter de ...
Tie-Line Error
... PID based LFC of single area power system PID controller has been broadly used for decades as the load frequency controllers. PID controller is simple to implement however, there are fundamental technical limitations in the existing PID framework, including the following: 1) the error computation ...
... PID based LFC of single area power system PID controller has been broadly used for decades as the load frequency controllers. PID controller is simple to implement however, there are fundamental technical limitations in the existing PID framework, including the following: 1) the error computation ...
MEEPP 201 Power Electronic System Control -set1
... 6. (a). The input voltage to the forward converter is 150V. The switching frequency is 95 kHz and duty cycle is 50%. The converter transformer has 100 turns each on the primary and feedback. Find the time duration in one switching period when the feedback diode is ON. Find the maximum voltage that c ...
... 6. (a). The input voltage to the forward converter is 150V. The switching frequency is 95 kHz and duty cycle is 50%. The converter transformer has 100 turns each on the primary and feedback. Find the time duration in one switching period when the feedback diode is ON. Find the maximum voltage that c ...
TESTING SYSTEMS FOR ELECTRIC MOTORS
... Optional tests: winding temperature gradient (temperature test), electric safety tests (Earth Continuity Test, Insulation resistance tests, Dielectric strength test, Leakage current test). MotorTest Software: Motors main database, Test stand configuration (TA/Shunt range, currents range for temperat ...
... Optional tests: winding temperature gradient (temperature test), electric safety tests (Earth Continuity Test, Insulation resistance tests, Dielectric strength test, Leakage current test). MotorTest Software: Motors main database, Test stand configuration (TA/Shunt range, currents range for temperat ...
(EVs) on single-phase three-wire distribution feeders
... A charger with a three-leg-structured PWM rectifier with a bidirectional dc–dc converter for a split-phase transformer in single-phase three-wire feeders has been proposed. However, the third leg is controlled by fixed 50% duty to keep the two output voltages of 120 Vrms balance. Thus, unbalanced ac ...
... A charger with a three-leg-structured PWM rectifier with a bidirectional dc–dc converter for a split-phase transformer in single-phase three-wire feeders has been proposed. However, the third leg is controlled by fixed 50% duty to keep the two output voltages of 120 Vrms balance. Thus, unbalanced ac ...
chapter 8 - Power Quality
... While some utilities install surge suppression equipment on their distribution lines it is still necessary for the customer to install equipment in their home or business. Wiring solutions include using special circuit and grounding practices. Properly designed transmission towers and other distribu ...
... While some utilities install surge suppression equipment on their distribution lines it is still necessary for the customer to install equipment in their home or business. Wiring solutions include using special circuit and grounding practices. Properly designed transmission towers and other distribu ...
AN1946
... We have to get an access to this neutral point to be able to measure the BEMF voltage. In many applications like compressor drives, it is not possible to implement a wire giving access to a neutral point. To get this voltage information we use various methods to rebuild a virtual neutral. We can alr ...
... We have to get an access to this neutral point to be able to measure the BEMF voltage. In many applications like compressor drives, it is not possible to implement a wire giving access to a neutral point. To get this voltage information we use various methods to rebuild a virtual neutral. We can alr ...
DN447 - A Complete Compact APD Bias Solution for a 10Gbits/s GPON System
... pin. The CTRL pin serves to override the internal reference. By tying this pin above 1.25V, the output voltage is regulated with the feedback at 1.25V. By externally setting the CTRL pin to a lower voltage, the feedback and the output voltage follow accordingly. The SHDN pin not only enables the con ...
... pin. The CTRL pin serves to override the internal reference. By tying this pin above 1.25V, the output voltage is regulated with the feedback at 1.25V. By externally setting the CTRL pin to a lower voltage, the feedback and the output voltage follow accordingly. The SHDN pin not only enables the con ...
Features:
... Reversing the power connecter has no adverse effect because the battery voltage will not be electronically connected to the board. Next to the power connector is the Power Switch Header. The two pins must be shorted to provide power to the board. Using a standard jumper will work, but a cable with a ...
... Reversing the power connecter has no adverse effect because the battery voltage will not be electronically connected to the board. Next to the power connector is the Power Switch Header. The two pins must be shorted to provide power to the board. Using a standard jumper will work, but a cable with a ...
Chapter 3 Data Transmission
... Conversion of analog data into digital data Digital data can then be transmitted using NRZ-L Digital data can then be transmitted using code other than NRZ-L Digital data can then be converted to analog signal Analog to digital conversion done using a codec Pulse code modulation Delta modulation ...
... Conversion of analog data into digital data Digital data can then be transmitted using NRZ-L Digital data can then be transmitted using code other than NRZ-L Digital data can then be converted to analog signal Analog to digital conversion done using a codec Pulse code modulation Delta modulation ...
Introduce myself
... signal. This results in very low distortion but demands lots of power during low level signals, especially during an idle state. The amplifier sends to the speakers one half its output power capability when in idle. Also, speakers must be protected from transients resulting from this idle state offs ...
... signal. This results in very low distortion but demands lots of power during low level signals, especially during an idle state. The amplifier sends to the speakers one half its output power capability when in idle. Also, speakers must be protected from transients resulting from this idle state offs ...
Ultra low power processing based on a sub-threshold - Nano-Tera
... M. Pons1, D. Séverac1, J-L. Nagel1, D. Ruffieux1, S. Emery1, P. Rochaix2 1 CSEM ...
... M. Pons1, D. Séverac1, J-L. Nagel1, D. Ruffieux1, S. Emery1, P. Rochaix2 1 CSEM ...
www.BDTIC.com/ON/ Test Procedure for the NCP1207AADAPGEVB 01/31/2005
... Figure 3. Gate Driver and Drain Voltage at Very Light Load ...
... Figure 3. Gate Driver and Drain Voltage at Very Light Load ...
Pulse-width modulation
Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a modulation technique used to encode a message into a pulsing signal. Although this modulation technique can be used to encode information for transmission, its main use is to allow the control of the power supplied to electrical devices, especially to inertial loads such as motors. In addition, PWM is one of the two principal algorithms used in photovoltaic solar battery chargers, the other being MPPT.The average value of voltage (and current) fed to the load is controlled by turning the switch between supply and load on and off at a fast rate. The longer the switch is on compared to the off periods, the higher the total power supplied to the load.The PWM switching frequency has to be much higher than what would affect the load (the device that uses the power), which is to say that the resultant waveform perceived by the load must be as smooth as possible. Typically switching has to be done several times a minute in an electric stove, 120 Hz in a lamp dimmer, from few kilohertz (kHz) to tens of kHz for a motor drive and well into the tens or hundreds of kHz in audio amplifiers and computer power supplies.The term duty cycle describes the proportion of 'on' time to the regular interval or 'period' of time; a low duty cycle corresponds to low power, because the power is off for most of the time. Duty cycle is expressed in percent, 100% being fully on.The main advantage of PWM is that power loss in the switching devices is very low. When a switch is off there is practically no current, and when it is on and power is being transferred to the load, there is almost no voltage drop across the switch. Power loss, being the product of voltage and current, is thus in both cases close to zero. PWM also works well with digital controls, which, because of their on/off nature, can easily set the needed duty cycle.PWM has also been used in certain communication systems where its duty cycle has been used to convey information over a communications channel.