Low-Cost Current-Fed PMSM Drive System With Sinusoidal Input
... standard control scheme for Synchronous machine drives, but it employs only a speed control loop because current control is already included in the rectifier charge controller. It should be noted that motor speed sensing is not necessary because the speed feedback signal can be derived from the inve ...
... standard control scheme for Synchronous machine drives, but it employs only a speed control loop because current control is already included in the rectifier charge controller. It should be noted that motor speed sensing is not necessary because the speed feedback signal can be derived from the inve ...
Magnets and Electromagnets
... • The electric current produced by the generator changes direction each time the coil makes a half turn. Because the electric current changes direction, it is an alternating current. • The energy that generators convert into electrical energy comes from different sources such as fossil fuels and nuc ...
... • The electric current produced by the generator changes direction each time the coil makes a half turn. Because the electric current changes direction, it is an alternating current. • The energy that generators convert into electrical energy comes from different sources such as fossil fuels and nuc ...
10. energy efficient technologies in electrical systems
... Typical full-load efficiencies are 95% and higher. High power units are still more efficient. The efficiency of VSDs generally decreases with speed but since the torque requirement also decreases with speed for many VSD applications, the absolute loss is often not very significant. The power factor ...
... Typical full-load efficiencies are 95% and higher. High power units are still more efficient. The efficiency of VSDs generally decreases with speed but since the torque requirement also decreases with speed for many VSD applications, the absolute loss is often not very significant. The power factor ...
HMC586LC4B
... Voltage Controlled Oscillator which incorporates the resonator, negative resistance device, and varactor diode. Output power and phase noise performance are excellent over temperature due to the oscillator’s monolithic construction. The Vtune port accepts an analog tuning voltage from 0 to +18V. The ...
... Voltage Controlled Oscillator which incorporates the resonator, negative resistance device, and varactor diode. Output power and phase noise performance are excellent over temperature due to the oscillator’s monolithic construction. The Vtune port accepts an analog tuning voltage from 0 to +18V. The ...
ECE 541 – Lecture 4 Wilkonson Power Divider
... Text Section 7.3 How do you design a Wilkinson Power Divider? See for example Chapter 7 Problems 9,10 Wilkinson Power Divider: Matched at all ports Complete isolation between output ports Lossless when output ports are matched. Lossy when they are not (only reflected power is lost). ...
... Text Section 7.3 How do you design a Wilkinson Power Divider? See for example Chapter 7 Problems 9,10 Wilkinson Power Divider: Matched at all ports Complete isolation between output ports Lossless when output ports are matched. Lossy when they are not (only reflected power is lost). ...
Kirchhoff`s Laws - Edvantage Science
... Using Ohm’s Law I = V/R, and knowing that the potential difference is the same in a parallel circuit the equivalent resistance in a parallel circuit can be determined by: ...
... Using Ohm’s Law I = V/R, and knowing that the potential difference is the same in a parallel circuit the equivalent resistance in a parallel circuit can be determined by: ...
lecture 2:bjt small
... Figure f) shows the exponential relationship between iB and vBE. If magnitude of time-varying signal superimposed on dc quiescent pt is small => develop a linear r/ship between ac vBE and ac iB. This r/ship corresponds to the slope of curve at Q-point. Slope at Q-point is inversely proportional to a ...
... Figure f) shows the exponential relationship between iB and vBE. If magnitude of time-varying signal superimposed on dc quiescent pt is small => develop a linear r/ship between ac vBE and ac iB. This r/ship corresponds to the slope of curve at Q-point. Slope at Q-point is inversely proportional to a ...
IOSR Journal of Dental and Medical Sciences (IOSR-JDMS)
... the voltage regulation mode, the output voltage is described by equation (4): ...
... the voltage regulation mode, the output voltage is described by equation (4): ...
Aalborg Universitet Model Predictive Current Control for High-Power Grid-Connected Converters with
... introduced in a cost function containing the control objective, and the input producing the state with the lowest cost is applied during the following sampling instant. In this way, an on-line optimization control algorithm is obtained. This is particularly suitable for a 3-level NPC converter since ...
... introduced in a cost function containing the control objective, and the input producing the state with the lowest cost is applied during the following sampling instant. In this way, an on-line optimization control algorithm is obtained. This is particularly suitable for a 3-level NPC converter since ...
lab sheet - Faculty of Engineering
... transmission lines of 115 kV and higher are caused by lightning, which results in the flashover of insulators. The high voltage between a conductor and the grounded supporting tower causes ionization, which provides a path to ground for the charge induced by the lightning stroke. Once the ionized pa ...
... transmission lines of 115 kV and higher are caused by lightning, which results in the flashover of insulators. The high voltage between a conductor and the grounded supporting tower causes ionization, which provides a path to ground for the charge induced by the lightning stroke. Once the ionized pa ...
MC1508-8/1408-8 8-bit multiplying D/A converter
... positive reference voltage equal to the peak positive input level at ...
... positive reference voltage equal to the peak positive input level at ...
automotive embedded software
... Development of nanoelectronics technologies, devices, circuits architectures and modules for electrical cars/vehicles and demonstration of these modules in a final systems. Specification and development of power and high voltage electronics and smart miniaturized systems for power management, engine ...
... Development of nanoelectronics technologies, devices, circuits architectures and modules for electrical cars/vehicles and demonstration of these modules in a final systems. Specification and development of power and high voltage electronics and smart miniaturized systems for power management, engine ...
GD3310901094
... The power flow through the transmission line can be controlled by changing any one of the above mentioned parameters using different types of FACTS devices. In this paper two types of FACTS devices are used one is SVC, which is the basic model of shunt type of FACTS device and other is IPFC, which i ...
... The power flow through the transmission line can be controlled by changing any one of the above mentioned parameters using different types of FACTS devices. In this paper two types of FACTS devices are used one is SVC, which is the basic model of shunt type of FACTS device and other is IPFC, which i ...
Research of a New Line Protection Measurement and Controlling
... of new substation because they haven’t the fault and event memorizing function and communication function. So they will be certainly replaced by produces based on microcomputer. But the microcomputer based products also can’t meet the demand of new substation because their CPUs are usually slow, the ...
... of new substation because they haven’t the fault and event memorizing function and communication function. So they will be certainly replaced by produces based on microcomputer. But the microcomputer based products also can’t meet the demand of new substation because their CPUs are usually slow, the ...
Alternating current
Alternating current (AC), is an electric current in which the flow of electric charge periodically reverses direction, whereas in direct current (DC, also dc), the flow of electric charge is only in one direction. The abbreviations AC and DC are often used to mean simply alternating and direct, as when they modify current or voltage.AC is the form in which electric power is delivered to businesses and residences. The usual waveform of alternating current in most electric power circuits is a sine wave. In certain applications, different waveforms are used, such as triangular or square waves. Audio and radio signals carried on electrical wires are also examples of alternating current. These types of alternating current carry information encoded (or modulated) onto the AC signal, such as sound (audio) or images (video).