无换向器电动机 - 百度百科
网页无换向器电动机（Commutatorless Motor）是一种采用电子元件换向的 直流电动机 。又称无整流子电动机。习惯上把直流供电的、逆变器由晶体管构成的小功率电动机称为 无刷直流电动机 ；把容量较大的电气传动的原理和实践叫做无换向器电动机。无换向器电动机有 ...
Simplified Model and Closed-Loop Control of a Commutatorless …
网页A simplified dynamic model of a current-fed, self-commutated synchronous motor, operating with a constant angle between the motor counter electromotive force (C.
Electric motors - construction, working principle, types, parameters ...
网页Commutatorless motors. Commutatorless electric motors can have contact rings with brushes, so do not confuse commutatorless electric motors and brushless electric motors.
The thyristor commutatorless motor | IEEE Journals & Magazine
网页The commutatorless motor (CLM) is a type of a dc motor whose commutator is replaced by the thyristor power converter. The thyristors are switched by the signals from a position sensor connected to the rotating shaft of the synchronous motor. Therefore, the CLM never loses synchronism and has the good speed characteristics of a dc motor.
Constant Margin-Angle Control of Commutatorless Motor Using ...
网页Abstract: Constant margin-angle control is a triggering scheme that can eliminate the commutation failure and increase the power factor and efficiency of commutatorless motors. The described scheme does not need to detect the margin angle, but the dc current and overlap angle are detected instead.
The Commutatorless D-C Motor with Three-Phase Current …
网页1977年1月1日 — The commutatorless d. c. motor with three-phase current excitation is a new, simple and variable speed drive which has a speed-torque characteristic similar to that of ad. c. shunt motor. The circuitry of the static converter consists of a linecommutated rectifier controlled by line voltage and a load-commutated inverter controlled by motor ...
Electric Vehicle Machines and Drives - Wiley Online Library
网页2015年5月29日 — At present, induction motor drives are the most mature technology among various commutatorless motor drives. There are two types of induction machines (IMs): the wound-rotor and squirrel-cage. This chapter discusses various induction motor drives, including their system configurations, IMs, power inverters, and control strategies.
[PDF] Constant Margin-Angle Control of Commutatorless Motor …
网页The constant margin-angle control is a triggering scheme which can eliminate the commutation failure and increase the power factor and efficiency of commutatorless motors. The scheme described in this paper does not need to detect the margin-angle but the dc current and overlap-angle are detected instead.
(PDF) Innovative DC Commutator-less Drive - ResearchGate
网页2020年11月30日 — Proposing a new category of electrical drive using a dc motor without mechanical commutator and sliding brushes, and controlled by an interlaced multiphase chopper (dc/dc converter) or a phase...
Performance Equations for DC Commutatorless Motors Using …
网页Abstract: A large volume of research has been done to analyze commutatorless dc motors using salient-pole synchronous-type machines. These studies have not resulted in clear design-oriented expressions relating performance to machine geometry.