Aalborg Universitet Research
... Table I indicates that the trend in future VSC-HVDC installations is to employ the MMCC for power transmission and grid connection of OWPPs. The MMCC VSC-HVDC, introduced in [13], synthesises a high quality sinusoidal voltage waveform by incrementally switching a high number of voltage levels, thus ...
... Table I indicates that the trend in future VSC-HVDC installations is to employ the MMCC for power transmission and grid connection of OWPPs. The MMCC VSC-HVDC, introduced in [13], synthesises a high quality sinusoidal voltage waveform by incrementally switching a high number of voltage levels, thus ...
Document
... The first two are highly controllable, and usually what you would use in an application. But we quickly review the others. ...
... The first two are highly controllable, and usually what you would use in an application. But we quickly review the others. ...
AVR496: Brushless DC Motor Control using
... The Timer/Counter1 (TC1) module of the ATtinyX61 family is very well suited for driving threephase motors. It can be run from a 64MHz PLL, and has a resolution of 10 bits. Six PWM outputs can be generated from this timer, grouped into three complementary output pairs with configurable dead-time. The ...
... The Timer/Counter1 (TC1) module of the ATtinyX61 family is very well suited for driving threephase motors. It can be run from a 64MHz PLL, and has a resolution of 10 bits. Six PWM outputs can be generated from this timer, grouped into three complementary output pairs with configurable dead-time. The ...
O A RIGINAL RTICLE
... voltage quality problems of utility. Obviously, modern power systems need high reliability of supplied energy. Nowadays, small synchronous generators, as DG source, which are installed near the load can be used for increase reliability and decrease losses. Scope of this research is integration of UP ...
... voltage quality problems of utility. Obviously, modern power systems need high reliability of supplied energy. Nowadays, small synchronous generators, as DG source, which are installed near the load can be used for increase reliability and decrease losses. Scope of this research is integration of UP ...
Power System Harmonics Causes and Effects of Variable Frequency
... ❏ Fuses and Circuit Breakers: harmonics can cause false or spurious operations and trips, damaging or blowing components for no apparent reason. ❏ Transformers: have increased iron and copper losses or eddy currents due to stray flux losses. This causes excessive overheating in the transformer windi ...
... ❏ Fuses and Circuit Breakers: harmonics can cause false or spurious operations and trips, damaging or blowing components for no apparent reason. ❏ Transformers: have increased iron and copper losses or eddy currents due to stray flux losses. This causes excessive overheating in the transformer windi ...
DataSheet
... Also ideal for software radio and other multi-band receivers, the HMC597LP4(E) demodulator is housed in a compact 4 x 4 mm SMT QFN package and delivers exceptionally high dynamic range. The LO requires -6 to +6 dBm and can be driven in single-ended mode. The I and Q output ports are differential wit ...
... Also ideal for software radio and other multi-band receivers, the HMC597LP4(E) demodulator is housed in a compact 4 x 4 mm SMT QFN package and delivers exceptionally high dynamic range. The LO requires -6 to +6 dBm and can be driven in single-ended mode. The I and Q output ports are differential wit ...
MAX2754.pdf
... implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. ...
... implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. ...
MAX9982EV Kit - Maxim Integrated
... the basic functionality of the EV kit. As a general precaution to prevent damaging the outputs by driving high-VSWR loads, do not turn on DC power or RF signals until all connections are made. This procedure is specific to operation with an RF input-frequency range of 825MHz to 915MHz, low-side inje ...
... the basic functionality of the EV kit. As a general precaution to prevent damaging the outputs by driving high-VSWR loads, do not turn on DC power or RF signals until all connections are made. This procedure is specific to operation with an RF input-frequency range of 825MHz to 915MHz, low-side inje ...
ECE 497 Project Proposal
... extended across the Midwest, Northeast, and into Canada [1]. An investigation launched by the North American Electric Reliability Corporation (NERC) found that the blackout could have been confined to a small region had operators known the status of overstressed and failing lines [2]. Since this cat ...
... extended across the Midwest, Northeast, and into Canada [1]. An investigation launched by the North American Electric Reliability Corporation (NERC) found that the blackout could have been confined to a small region had operators known the status of overstressed and failing lines [2]. Since this cat ...
3.5 mm Specifications - Spectrum Elektrotechnik GmbH
... BORRIUM NITRITE Dielectric for high power applications per inhouse specification. Centre Contacts shall be gold plated to a minimum thickness of .00005 inch (1.27 µm) in accordance with MIL-G-45204, Type II, Grade C. shall be passivated per QQ-P-35. Conductive Parts shall have an iridited finish per ...
... BORRIUM NITRITE Dielectric for high power applications per inhouse specification. Centre Contacts shall be gold plated to a minimum thickness of .00005 inch (1.27 µm) in accordance with MIL-G-45204, Type II, Grade C. shall be passivated per QQ-P-35. Conductive Parts shall have an iridited finish per ...
LCL Filter Design for Grid-connected NPC Inverters
... grid impedances along such harmonic orders at the connection point; keeping in mind that a limit of 0.2% for harmonic voltage components between 2000 and 9000 Hz may not be surpassed. Since the frequency band from 2000 Hz to 9000 Hz was considered as being important to the characterization of freque ...
... grid impedances along such harmonic orders at the connection point; keeping in mind that a limit of 0.2% for harmonic voltage components between 2000 and 9000 Hz may not be surpassed. Since the frequency band from 2000 Hz to 9000 Hz was considered as being important to the characterization of freque ...
... lower than the highest value we previously reported for oxide-confined VCSELs with InGaAs quantum wells.' The resonant frequency increases steadily to 15 GHz at 2.7 mA and then becomes nearly constant. The -3 dB bandwidth is as high as 21.5 GHz. Large signal, digital modulation experiments were also ...
Utility frequency
The utility frequency, (power) line frequency (American English) or mains frequency (British English) is the frequency of the oscillations of alternating current (AC) in an electric power grid transmitted from a power plant to the end-user. In large parts of the world this is 50 Hz, although in the Americas and parts of Asia it is typically 60 Hz. Current usage by country or region is given in the list of mains power around the world.During the development of commercial electric power systems in the late 19th and early 20th centuries, many different frequencies (and voltages) had been used. Large investment in equipment at one frequency made standardization a slow process. However, as of the turn of the 21st century, places that now use the 50 Hz frequency tend to use 220–240 V, and those that now use 60 Hz tend to use 100–127 V. Both frequencies coexist today (Japan uses both) with no great technical reason to prefer one over the other and no apparent desire for complete worldwide standardization.Unless specified by the manufacturer to operate on both 50 and 60 Hz, appliances may not operate efficiently or even safely if used on anything other than the intended frequency.