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| title | chunk | source | category | tags | date_saved | instance |
|---|---|---|---|---|---|---|
| Glossary of power electronics | 1/6 | https://en.wikipedia.org/wiki/Glossary_of_power_electronics | reference | science, encyclopedia | 2026-05-05T07:51:12.696950+00:00 | kb-cron |
This glossary of power electronics is a list of definitions of terms and concepts related to power electronics in general and power electronic capacitors in particular. For more definitions in electric engineering, see Glossary of electrical and electronics engineering. For terms related to engineering in general, see Glossary of engineering. The glossary terms fit in the following categories in power electronics:
Electronic power converters; converters, rectifiers, inverters, filters. Electronic power switches and electronic AC power converters; switches and controllers. Essential components of electric power equipment; device, stack, assembly, reactor, capacitor, transformer, AC filter, DC filter, snubber circuit. Circuits and circuit elements of power electronic equipment; arms and connections. Operations within power electronic equipment; commutations, quenchings, controls, angles, factors, states, directions, intervals, periods, frequencies, voltages, breakthroughs and failures, breakdowns, blocking and flows. Properties of power electronic equipment Characteristic curves of power electronic equipment Power supplies
== A ==
AC capacitor A capacitor essentially designed for operation with alternating voltage.AC conversion factor For AC conversion, the ratio of the fundamental output power to the fundamental input power.
AC converter A converter for AC conversion.
AC filter A filter on the AC side of a converter, designed to reduce the circulation of harmonic currents in the associated system.
AC voltage converter An AC converter for changing the voltage.
(electronic) AC (power) conversion Electronic conversion from AC to AC
(electronic) AC/DC (power) conversion Electronic conversion from AC to DC or vice versa.
AC/DC converter An electronic converter for rectification or inversion or both.
angle of overlap The commutation interval expressed in angular measure.
(valve) arm A part of the circuit of a power converter or switch bounded by any two AC or DC terminals and including one or more simultaneously conducting electronic valve devices connected together and other components if any.
asymmetrical phase control Phase control with different delay angles in the principal arms of a converter connection or commutating group.
automatic switching on The property of an equipment having a forced characteristic such that the equipment is switched on automatically.
automatic switching off The property of an equipment having a forced characteristic such that the equipment is switched off automatically.
auto-sequential commutation A method of capacitor commutation where the next principal arm to conduct in sequence when turned on connects the capacitor supplying the commutating voltage to the foregoing principal arm.
auxiliary arm Any valve arm other than a principal arm.
== B ==
basic converter connection The electrical arrangement of principal arms in a converter.
boost converter step-up converter A direct DC converter providing an output voltage which is higher than the input voltage.
boost and buck connection A series connection of two or more converter connections the direct voltages of which may be added or subtracted depending on the control of the individual connections.
breakdown (of an electronic valve device or of a valve arm) A failure that permanently deprives an electronic valve device or a valve arm of its property to block voltage.
breakthrough A failure by which a controllable valve device or an arm consisting of such devices loses its ability to block voltage during the forward blocking interval.
bridge connection A double-way connection of pairs of arms such that the center terminals are the phase terminals of the AC circuit, and that the outer terminals of like polarity are connected together and are the DC terminals.
buck converter step-down converter A direct DC converter providing an output voltage which is lower than the input voltage.
by-pass arm An auxiliary arm providing a conductive path which allows the current to circulate without an interchange of power between source and load.
== C ==
capacitor commutation A method of self-commutation in which the commutating voltage is supplied by capacitors included in the commutation circuit.capacitor element (or element) An indivisible part of a capacitor consisting of two electrodes separated by a dielectric.capacitor losses The active power consumed by a capacitor.capacitor unit (or unit) An assembly of one or more capacitor elements in the same container with terminals brought out.capacitor bank An assembly of two or more capacitor units, electrically connected to each other.capacitor A general term used when it is not necessary to state whether reference is made to an element, a unit or a capacitor bank.capacitor equipment An assembly of capacitor units and their accessories intended for connection to a network.
circuit angle In a rectifier connection, the phase angle between the peak of the line to neutral voltage on the AC line side and the simultaneous or next peak of the unsmoothed direct voltage at zero current delay angle.
circuit crest working off-state voltage The highest instantaneous value of the off-state voltage developed across a controllable valve device or an arm consisting of such devices, excluding all repetitive and non-repetitive transients.
circuit crest working reverse voltage The highest instantaneous value of the reverse voltage developed across a reverse blocking valve device or an arm consisting of such devices, excluding all repetitive and non-repetitive transient voltages.
circuit non-repetitive peak off-state voltage The highest instantaneous value of any non-repetitive transient off-state voltage developed across a controllable valve device or an arm consisting of such devices.
circuit non-repetitive peak reverse voltage The highest instantaneous value of any non-repetitive transient reverse voltage developed across a reverse blocking valve device or an arm consisting of such devices.
circuit repetitive peak off-state voltage The highest instantaneous value of the off-state voltage developed across a controllable valve device or an arm consisting of such devices, including all repetitive transient voltages but excluding all non-repetitive transient voltages.
circuit repetitive peak reverse voltage The highest instantaneous value of a reverse voltage developed across a reverse blocking valve device or an arm consisting of such devices, including all repetitive transient voltages but excluding all non-repetitive transient voltages.
circuit reverse blocking interval The interval during which a reverse blocking valve device or an arm consisting of such devices is in the reverse blocking state.