Sinusoidal Current

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sinusoidal current

[‚sī·nə′sȯid·əl ′kə·rənt]

(electricity)

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Sinusoidal Current

an alternating current that constitutes a sinusoidal function of time in the form i = I_m sin (ωt + Φ), where i is the instantaneous value of the current, I_m is the current’s amplitude, ω is the angular frequency, and Φ is the initial phase angle. Inasmuch as a sinusoidal function resembles its derivative, in all parts of a linear circuit carrying a sinusoidal current the voltages, currents, and induced emf’s are also sinusoidal. The use of sinusoidal currents in technology simplifies electrical devices and circuits, as well as design calculations. [23–1297–]

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References in periodicals archive ?

--an increase in power losses of 1.26-1.43 times compared with sinusoidal current at using steel trolley lines.

HIGH CURRENT HARMONICS INFLUENCE ON THE CHOICE OF CONDUCTORS OF CRANE POWER SUPPLY SYSTEMS

If sinusoidal PWM method is used for control, the inverter will regulate these current pulses into a sinusoidal current in phase with the grid voltage [22].

An inverter with interleaved flyback topology using DCM and MPPT for photovoltaic system

To determine each of these N triangular sinusoidal currents there is N rectangular pulse test functions with unitary amplitude [16].

Broadband Dipole-Loop Combined Nanoantenna Fed by Two-Wire Optical Transmission Line

It is achieved by using higher switching frequencies in order to form sinusoidal current lower harmonic distortion [6].

A Current-Forced Line-Commutated Inverter for Single-Phase Grid-Connected Photovoltaic Generation Systems

The ACS 2000 design provides near sinusoidal current and voltage waveforms making the drive compatible for use with standard NEMA rated motors.

ABB expands power range of ACS 2000 medium voltage drive

For increasing input voltage, a DC/DC converter, which allows interaction to the AC mains, not only is used for constant output voltage but also is employed in order to perform the MPP, while inverter stage delivers a sinusoidal current to the utility line.

A grid-connected multilevel current source inverter and its protection for grid-disconnection

The testing team noticed that the graphical waveform of the sinusoidal current and voltage provided by the True RMS meter was not well represented by the meter.

Determining the cost-effectiveness of various sub-metering strategies

where [I.sub.m] is the amplitude of the sinusoidal current. For the R-FSPM motors, the motor torque is predominantly resulted from the PM excitation torque since the reluctance torque is negligible.

Experimental comparison of remedial single-channel operations for redundant flux-switching permanent-magnet motor drive

"If you connected them to a power supply and applied a sinusoidal current" - an alternating current whose period is very regular - "then it would vibrate.

Coming soon: Clothes that can hear and speak!

The DEA instrumentation applies a sinusoidal voltage across electrodes placed in intimate contact with the material being tested at a chosen frequency or multiple frequencies and measures the resulting sinusoidal current. Changes in amplitude and phase of the response are converted into electrical properties.

Dielectric analysis of coatings

The voltage on charge is forming by PWM impulses and sinusoidal current depends by number of PWM impulses and modulation.

The modeling of small power bridge by Simulink program

When a resistive load is driven by a sinusoidal voltage waveform or a sinusoidal current waveform, the average power dissipated by the load is calculated from an RMS voltage measurement.