On the Loading of Power Modules in a Three Phase Voltage Source
... connected anti-parallel to the fuse as in the normal inverter configuration. The fuse selection is particularly troublesome due to the fatigue in dynamic applications with frequent overloads which are typical for VSC applications. To reduce current through fuse, the fuse should be connected in serie ...
... connected anti-parallel to the fuse as in the normal inverter configuration. The fuse selection is particularly troublesome due to the fatigue in dynamic applications with frequent overloads which are typical for VSC applications. To reduce current through fuse, the fuse should be connected in serie ...
Conference Paper - Department of Electrical Engineering and
... the speed and direction of the motors for flight. In order to control the motors, there must be a bridge between motors and the flight controller called the electronic speed controller (ESC). This process of controlling the electronic speed controller is very similar to controlling a servo. The flig ...
... the speed and direction of the motors for flight. In order to control the motors, there must be a bridge between motors and the flight controller called the electronic speed controller (ESC). This process of controlling the electronic speed controller is very similar to controlling a servo. The flig ...
THEVENIN THEOREM
... THEVENIN THEOREM Thévenin’s theorem greatly simplifies analysis of complex circuits by allowing us to replace all of the elements with a combination of just one voltage source and one resistor. “A complex two-terminal circuit can be replaced by an equivalent circuit consisting of a voltage source VT ...
... THEVENIN THEOREM Thévenin’s theorem greatly simplifies analysis of complex circuits by allowing us to replace all of the elements with a combination of just one voltage source and one resistor. “A complex two-terminal circuit can be replaced by an equivalent circuit consisting of a voltage source VT ...
Efficiency Optimization of a 100-W, 500 000-rpm
... machines and drive systems. The most challenging aspects for the research occur when the operating speed is above 100 000 rpm. In [28], various gas turbine and compressors systems are reported. The design target is for 240 000 rpm at a power level of 5 kW. Currently, the system is operating at 180 0 ...
... machines and drive systems. The most challenging aspects for the research occur when the operating speed is above 100 000 rpm. In [28], various gas turbine and compressors systems are reported. The design target is for 240 000 rpm at a power level of 5 kW. Currently, the system is operating at 180 0 ...
STX112
... STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of Ameri ...
... STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of Ameri ...
Designing and simulation of multi- converter unified power quality
... capable of compensating for the unbalanced source voltage and unbalanced load current. To evaluate the control system capability for unbalanced voltage compensation, a new simulation is performed. In this new simulation, the BUS2 voltage and the harmonic components of BUS1 voltage are similar to tho ...
... capable of compensating for the unbalanced source voltage and unbalanced load current. To evaluate the control system capability for unbalanced voltage compensation, a new simulation is performed. In this new simulation, the BUS2 voltage and the harmonic components of BUS1 voltage are similar to tho ...
![[4] CIGRE Task Force 38.01.06, “Load Flow Control in High Voltage](http://s1.studyres.com/store/data/000403186_1-0e64b69b49285c918a8aa6620d435256-300x300.png)
[4] CIGRE Task Force 38.01.06, “Load Flow Control in High Voltage
... transformer. The converter transformer enables the build-up of a sine-wave voltage in both magnitude and phase. Because STATCOMs with multi-stage converter transformers do not generate significant internal harmonics, they generally require minimal, or no, harmonic filtering. If the number of firing ...
... transformer. The converter transformer enables the build-up of a sine-wave voltage in both magnitude and phase. Because STATCOMs with multi-stage converter transformers do not generate significant internal harmonics, they generally require minimal, or no, harmonic filtering. If the number of firing ...
fault zone analysis
... those expected in service, the effects of aging or mechanical damage in fairly clean and dry insulation may not be revealed at such low voltage levels. When the voltage is increased in steps to exceed the level seen in service, local weak spots in the insulation may be revealed in the insulation res ...
... those expected in service, the effects of aging or mechanical damage in fairly clean and dry insulation may not be revealed at such low voltage levels. When the voltage is increased in steps to exceed the level seen in service, local weak spots in the insulation may be revealed in the insulation res ...
Paper Title (use style: paper title)
... transportation sector, aiming the electric mobility, mainly through Electric Vehicles (EVs) and Plug-in Hybrid Electric Vehicles (PHEVs). Thus, several organizations and energy experts suggest policies to encourage research and demonstration projects of these vehicles When the subject is EVs, almost ...
... transportation sector, aiming the electric mobility, mainly through Electric Vehicles (EVs) and Plug-in Hybrid Electric Vehicles (PHEVs). Thus, several organizations and energy experts suggest policies to encourage research and demonstration projects of these vehicles When the subject is EVs, almost ...
CD23490495
... increase in the dc-link voltage above the reference value, whereas a sudden increase in load would reduce the dc-link voltage below its reference value. As mentioned before, the source supplies an unbalanced nonlinear ac load directly and a dc load through the dc link of the DSTATCOM, as shown in fi ...
... increase in the dc-link voltage above the reference value, whereas a sudden increase in load would reduce the dc-link voltage below its reference value. As mentioned before, the source supplies an unbalanced nonlinear ac load directly and a dc load through the dc link of the DSTATCOM, as shown in fi ...
Technical specification - DAE e
... This panel mount Variable Freq. Drive shall consist of following components: i. DSP Controller ii. Uncontrolled Diode bridge rectifier. iii. Variable voltage chopper circuit. iv. Three phase IGBT bridge. v. Output transformer. i. DSP Controller: This VFD controller is heart of the system, which cont ...
... This panel mount Variable Freq. Drive shall consist of following components: i. DSP Controller ii. Uncontrolled Diode bridge rectifier. iii. Variable voltage chopper circuit. iv. Three phase IGBT bridge. v. Output transformer. i. DSP Controller: This VFD controller is heart of the system, which cont ...
electrical machines det 204/3
... The poles cover 75% of the armature periphery. The armature winding consists of 33 coils, each coil having seven turns. The coils are accommodated in 33 slots. The average flux density under each pole is 0.75T. 1) If the armature is lap wound, determine: a. the armature constant K b. the induced arm ...
... The poles cover 75% of the armature periphery. The armature winding consists of 33 coils, each coil having seven turns. The coils are accommodated in 33 slots. The average flux density under each pole is 0.75T. 1) If the armature is lap wound, determine: a. the armature constant K b. the induced arm ...
TJ5631 - HTC Korea
... Note 6. Ground current, or quiescent current, is the difference between input and output currents. It's defined by I GND1 = IIN 1- IOUT1 under the given loading condition. The total current drawn from the supply is the sum of the load current plus the ground pin current. ...
... Note 6. Ground current, or quiescent current, is the difference between input and output currents. It's defined by I GND1 = IIN 1- IOUT1 under the given loading condition. The total current drawn from the supply is the sum of the load current plus the ground pin current. ...
Line Loss Minimization in Isolated Substations
... on the voltage magnitude of each load in the loop system. Line loss minimization can be achieved if the loop current is eliminated from the loop system. This clause can be achieved if, at least, the line parameters of all loop lines have the same ratio between the resistance and inductance. This can ...
... on the voltage magnitude of each load in the loop system. Line loss minimization can be achieved if the loop current is eliminated from the loop system. This clause can be achieved if, at least, the line parameters of all loop lines have the same ratio between the resistance and inductance. This can ...
Comparing Buck Converter Topologies
... Figure 3. Current Mode-Cot Converter Block Diagram CMCOT buck converters do not have an internal clock; the upper MOSFET always conducts for a pre-defined fixed ON time. The duty-cycle is regulated by changing the OFF time of the upper MOSFET. CMCOT converters also contain a current sense and error ...
... Figure 3. Current Mode-Cot Converter Block Diagram CMCOT buck converters do not have an internal clock; the upper MOSFET always conducts for a pre-defined fixed ON time. The duty-cycle is regulated by changing the OFF time of the upper MOSFET. CMCOT converters also contain a current sense and error ...
DC059 - LTC1174 Evaluation Kit Quick Start Guide
... between two modes of operation, burst and continuous. The voltage comparator is the primary control element when the device is in Burst Mode operation, while the current comparator controls the output voltage in continuous mode. During the switch ON time, switch current flows through the 0.1Ω sense ...
... between two modes of operation, burst and continuous. The voltage comparator is the primary control element when the device is in Burst Mode operation, while the current comparator controls the output voltage in continuous mode. During the switch ON time, switch current flows through the 0.1Ω sense ...
DIGIPLAN 1054 STEPPER MOTOR DRIVE INSTRUCTION
... The motor cannot be started or stopped instantaneously within the slew range. Ramping - the technique of progressively increasing or decreasing the stepping rate so that the motor accelerates or decelerates without losing steps. Phase - one of the motor windings across which the drive voltage is app ...
... The motor cannot be started or stopped instantaneously within the slew range. Ramping - the technique of progressively increasing or decreasing the stepping rate so that the motor accelerates or decelerates without losing steps. Phase - one of the motor windings across which the drive voltage is app ...
EXAMPLES OF STATOR WINDING PARTIAL DISCHARGE DUE TO INVERTER DRIVES
... Rapid advances in power electronic components in the past decade have lead to a new source of voltage surges. Inverter-fed drives (IFDs) of the pulse-width modulated (PWM) type and using insulated gate bipolar junction transistors (IGBTs) can create tens of thousands of fast risetime voltage surges ...
... Rapid advances in power electronic components in the past decade have lead to a new source of voltage surges. Inverter-fed drives (IFDs) of the pulse-width modulated (PWM) type and using insulated gate bipolar junction transistors (IGBTs) can create tens of thousands of fast risetime voltage surges ...
Variable-frequency drive
A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, around 25% of the world's electrical energy is consumed by electric motors in industrial applications, which are especially conducive for energy savings using VFDs in centrifugal load service, and VFDs' global market penetration for all applications is still relatively small. That lack of penetration highlights significant energy efficiency improvement opportunities for retrofitted and new VFD installations.Over the last four decades, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.VFDs are available in a number of different low- and medium-voltage AC-AC and DC-AC topologies.