Aalborg Universitet Kocewiak, Lukasz; Hjerrild, Jesper; Bak, Claus Leth
... Full-rated power converter applied in wind turbines is used to interface a generator that provides a variable voltage at variable frequency to a supply network operating at fixed frequency and including features that allow the power converter to remain connected to the supply network and retain cont ...
... Full-rated power converter applied in wind turbines is used to interface a generator that provides a variable voltage at variable frequency to a supply network operating at fixed frequency and including features that allow the power converter to remain connected to the supply network and retain cont ...
ii. direct calculation of power loss in radial distribution systems
... These losses are account for 13% of the total power generation. Therefore, there have been strong incentives for utilities to try to reduce the power loss. To reduce these losses in distribution systems in recent years many approaches have been introduced. For that in this paper work proposed a meth ...
... These losses are account for 13% of the total power generation. Therefore, there have been strong incentives for utilities to try to reduce the power loss. To reduce these losses in distribution systems in recent years many approaches have been introduced. For that in this paper work proposed a meth ...
BLDC Motor Control - NXP Semiconductors
... the same polarity. The vector amplitude changes from DC bus voltage and zero. In the case of the bipolar PWM switching, the applied voltage vector polarity changes during the PWM cycle, so the applied amplitude changes from positive DC bus voltage to negative DC bus voltage. The PWM frequency is usu ...
... the same polarity. The vector amplitude changes from DC bus voltage and zero. In the case of the bipolar PWM switching, the applied voltage vector polarity changes during the PWM cycle, so the applied amplitude changes from positive DC bus voltage to negative DC bus voltage. The PWM frequency is usu ...
Midfield Wireless Powering for Implantable Systems
... Wireless powering enables removal of the battery altogether. In place of a battery, a receiver on the implant harnesses energy provided by an external source. Although various means of energy transfer have been studied, including optical, ultrasound, or biological sources, wireless powering through ...
... Wireless powering enables removal of the battery altogether. In place of a battery, a receiver on the implant harnesses energy provided by an external source. Although various means of energy transfer have been studied, including optical, ultrasound, or biological sources, wireless powering through ...
W. Inam, K.K. Afridi and D.J. Perreault, “Variable Frequency Multiplier Technique for High Efficiency Conversion Over a Wide Operating Range,” 2014 IEEE Energy Conversion Congress and Exposition , Sept. 2014.
... changed as input and/or output voltages change such that it processes power between dc and a specific harmonic of its switching frequency (rather than just its fundamental) to create different modes of operation. By operating between dc and a higher harmonic, the dc-ac (or ac-dc) voltage gain of the ...
... changed as input and/or output voltages change such that it processes power between dc and a specific harmonic of its switching frequency (rather than just its fundamental) to create different modes of operation. By operating between dc and a higher harmonic, the dc-ac (or ac-dc) voltage gain of the ...
Aalborg Universitet Control of Grid Converters
... benefit the efficiency of both grid and generator converters due to reduced switching losses [4]. Also for some applications that converter are installed at high altitude, the effect of reduced energy stored in dc-link improves the reliability by decreasing the failure rate based on cosmic rays [5]. ...
... benefit the efficiency of both grid and generator converters due to reduced switching losses [4]. Also for some applications that converter are installed at high altitude, the effect of reduced energy stored in dc-link improves the reliability by decreasing the failure rate based on cosmic rays [5]. ...
70 W HID lamp ballast based on the L6569, L6385E and L6562A
... strain, and in particular, no components are to be bent, or isolating distances altered during transportation, handling or use. The demonstration board contains electrostatically sensitive components that are prone to damage through improper use. Electrical components must not be mechanically damage ...
... strain, and in particular, no components are to be bent, or isolating distances altered during transportation, handling or use. The demonstration board contains electrostatically sensitive components that are prone to damage through improper use. Electrical components must not be mechanically damage ...
2 marks EC2201
... As long as the supply voltage is on healthy condition the current through the NVR coil produce enough magnetic force of attraction and retain the starter handle in ON position against spring force. When the supply voltage fails or becomes lower than a prescribed value then electromagnet may not have ...
... As long as the supply voltage is on healthy condition the current through the NVR coil produce enough magnetic force of attraction and retain the starter handle in ON position against spring force. When the supply voltage fails or becomes lower than a prescribed value then electromagnet may not have ...
28 Nanometer
... over the industry standard platform due to process optimization techniques. These platforms are ideal for portable applications and consumer electronics such as mobile phones, wireless ICs and TVs. For applications that require performance enhancement but still maintain low power consumption, a seco ...
... over the industry standard platform due to process optimization techniques. These platforms are ideal for portable applications and consumer electronics such as mobile phones, wireless ICs and TVs. For applications that require performance enhancement but still maintain low power consumption, a seco ...
Transformer TheoryPDF
... • Power Transformer is a term given to a transformer used to transfer power for voltages usually higher than 69kV • Most power transformers are three‐phase • Power transformers can step‐up or step‐down the voltage • Other capabilities, such as tap changing equipment can be added to a step‐up or st ...
... • Power Transformer is a term given to a transformer used to transfer power for voltages usually higher than 69kV • Most power transformers are three‐phase • Power transformers can step‐up or step‐down the voltage • Other capabilities, such as tap changing equipment can be added to a step‐up or st ...
Powerware 9305 7.5
... The absolute reliability of UPS system can be increased close to 100% with the US patented Hot Sync™ parallel load sharing technology. It is designed for parallel redundant N+1 systems to satisfy the 7/24h applications. The Hot Sync™ can also be used in parallel capacity systems to benefit from the ...
... The absolute reliability of UPS system can be increased close to 100% with the US patented Hot Sync™ parallel load sharing technology. It is designed for parallel redundant N+1 systems to satisfy the 7/24h applications. The Hot Sync™ can also be used in parallel capacity systems to benefit from the ...
Designing a Control System for High Availability
... operating successfully when needed. Availability is often expressed as a percent. Expressed mathematically, availability is one minus the unavailability. Availability (A) is calculated using the formula A = MTBF / (MTBF + MDT), where MTBF is Mean Time Between Failure and MDT is Mean Down Time. MDT i ...
... operating successfully when needed. Availability is often expressed as a percent. Expressed mathematically, availability is one minus the unavailability. Availability (A) is calculated using the formula A = MTBF / (MTBF + MDT), where MTBF is Mean Time Between Failure and MDT is Mean Down Time. MDT i ...
BD6382EFV
... situations such as motor output shorts, and is not meant to be used as protection or security for the set. Therefore, sets should not be designed to take into account this circuit’s functions. After OCP operating, if irregular situations continues and the return by power reactivation or a reset of t ...
... situations such as motor output shorts, and is not meant to be used as protection or security for the set. Therefore, sets should not be designed to take into account this circuit’s functions. After OCP operating, if irregular situations continues and the return by power reactivation or a reset of t ...
Presentation_pocpa_safety_related-5 - Indico
... • As a consequence the design rules impose to envisage the energy damping mechanism to be fully safe. This means that each energy storage component needs to be carefully designed. Complex environment with multiple energy sources pushes to be cautious. • Most of the converters are water cooled. The m ...
... • As a consequence the design rules impose to envisage the energy damping mechanism to be fully safe. This means that each energy storage component needs to be carefully designed. Complex environment with multiple energy sources pushes to be cautious. • Most of the converters are water cooled. The m ...
FSGM0465R Green-Mode Fairchild Power Switch (FPS™)
... an unexpected abnormal event. In this situation, the protection circuit should trigger to protect the SMPS. However, even when the SMPS is in normal operation, the overload protection circuit can be triggered during the load transition. To avoid this undesired operation, the overload protection circ ...
... an unexpected abnormal event. In this situation, the protection circuit should trigger to protect the SMPS. However, even when the SMPS is in normal operation, the overload protection circuit can be triggered during the load transition. To avoid this undesired operation, the overload protection circ ...
White Paper on
... operating successfully when needed. Availability is often expressed as a percent. Expressed mathematically, availability is one minus the unavailability. Availability (A) is calculated using the formula A = MTBF / (MTBF + MDT), where MTBF is Mean Time Between Failure and MDT is Mean Down Time. MDT i ...
... operating successfully when needed. Availability is often expressed as a percent. Expressed mathematically, availability is one minus the unavailability. Availability (A) is calculated using the formula A = MTBF / (MTBF + MDT), where MTBF is Mean Time Between Failure and MDT is Mean Down Time. MDT i ...
4200FA 50 kVA Guide Specifications Internal Battery
... power to DC, which shall be supplied to the DC chopper. From this point, DC power is used to recharge the optional battery bank while simultaneously providing power to the inverter. a) Input Frequency Range: 45-65 Hz, continuous, without battery operation b) Capacity: Battery recharge shall be to wi ...
... power to DC, which shall be supplied to the DC chopper. From this point, DC power is used to recharge the optional battery bank while simultaneously providing power to the inverter. a) Input Frequency Range: 45-65 Hz, continuous, without battery operation b) Capacity: Battery recharge shall be to wi ...
Drive Solutions for the Global Cement Industry
... When electric drives soft start large motors, starting inrush current with associated mechanical and thermal wiring stress is eliminated. This removes limitations on motor frequency of starts, reduces insulation damage, and provides extended motor life. With synchronization logic, one drive can star ...
... When electric drives soft start large motors, starting inrush current with associated mechanical and thermal wiring stress is eliminated. This removes limitations on motor frequency of starts, reduces insulation damage, and provides extended motor life. With synchronization logic, one drive can star ...
INTRODUCING THE NEW MINI INVERTERS BY LIGHTALARMS
... Discover the Advantages of Mini Inverters As LED technology increases the efficiency of emergency lighting systems and decreases energy requirements, one Mini Inverter can supply power to an entire floor or large area when main power fails. A Mini Inverter-powered emergency lighting system requires ...
... Discover the Advantages of Mini Inverters As LED technology increases the efficiency of emergency lighting systems and decreases energy requirements, one Mini Inverter can supply power to an entire floor or large area when main power fails. A Mini Inverter-powered emergency lighting system requires ...
FSGM0565RB Green-Mode Fairchild Power Switch (FPS™) FSGM
... an unexpected abnormal event. In this situation, the protection circuit should trigger to protect the SMPS. However, even when the SMPS is in normal operation, the overload protection circuit can be triggered during the load transition. To avoid this undesired operation, the overload protection circ ...
... an unexpected abnormal event. In this situation, the protection circuit should trigger to protect the SMPS. However, even when the SMPS is in normal operation, the overload protection circuit can be triggered during the load transition. To avoid this undesired operation, the overload protection circ ...
8.0 A, 400 V NPN Bipolar Power Transistor
... conditions the collector voltage must be held to a safe level at or below a specific value of collector current. This can be accomplished by several means such as active clamping, RC snubbing, load line shaping, etc. The safe level for these devices is specified as a Reverse Bias Safe Operating Area ...
... conditions the collector voltage must be held to a safe level at or below a specific value of collector current. This can be accomplished by several means such as active clamping, RC snubbing, load line shaping, etc. The safe level for these devices is specified as a Reverse Bias Safe Operating Area ...
Microwave Generator For Scientific And Medical Applications
... Technical University of Cluj-Napoca, 28 Memorandumului, 400114, Cluj-Napoca, Romania Abstract. Nowadays power microwave radiation is widely used in medical applications as hyperthermia, diathermy or ablation and for scientific applications such as plasma generation, digestion, or as a catalyst in gr ...
... Technical University of Cluj-Napoca, 28 Memorandumului, 400114, Cluj-Napoca, Romania Abstract. Nowadays power microwave radiation is widely used in medical applications as hyperthermia, diathermy or ablation and for scientific applications such as plasma generation, digestion, or as a catalyst in gr ...
Electric power system
An electric power system is a network of electrical components used to supply, transmit and use electric power. An example of an electric power system is the network that supplies a region's homes and industry with power—for sizable regions, this power system is known as the grid and can be broadly divided into the generators that supply the power, the transmission system that carries the power from the generating centres to the load centres and the distribution system that feeds the power to nearby homes and industries. Smaller power systems are also found in industry, hospitals, commercial buildings and homes. The majority of these systems rely upon three-phase AC power—the standard for large-scale power transmission and distribution across the modern world. Specialised power systems that do not always rely upon three-phase AC power are found in aircraft, electric rail systems, ocean liners and automobiles.