A novel vector control approach for Single Phase Brushless Doubly Fed Machine

This paper proposed a novel control scheme for operating the Single Phase Brushless Doubly-Fed Machine (SPB) based on Stator-Flux-Oriented control algorithm. The SPB is a new type of Brushless Doubly-Fed Machine (BDFM) which shows a potential in applications which require adjustable speed such as Wind Power generation and speed adjustable Drive. The SPB can be applied to single-phase power system and the lower cost of the SPB makes the SPB suitable for low-rated power conversion applications. This paper develops the control scheme of the SPB with explicit mathematical analysis and block diagram of the controller. Experimental verification is also given. © 2011 IEEE.

Decoupling method for vector control of the brushless doubly-fed machine

The brushless doubly-fed machine exhibits rotor-speed-dependent, cross-coupling effects between inputs and outputs when vector control is implemented. Manipulation of the model equations shows that these effects are represented by rotation angles. A parameter-independent decoupling method is presented which reduces these cross-coupling disturbances by estimating the rotation angle and applying it back to the controller. © 2013 IEEE.

Reference frame re-alignment for vector control of the brushless doubly-fed machine

Vector control provides stability and performance when applied to the brushless doubly-fed machine, however cross-coupling effects can arise between inputs and outputs. To address these effects, a procedure is proposed to both visualize and minimize the cross-coupling by means of steady-state mapping and a re-alignment of the dq reference frame. With this method implemented, gain-response tests show improved decoupling across the operating region. © 2013 EUCA.

Unit, direct support, and general support maintenance repair parts and special tools lists ... : intrenching machine, combat, high speed mounted, ladder type, NSN 3805-00-727 6719, Unit Rig model 4262.

"June 1992."

Direct and general support maintenance repair parts and special tools list for lubricating and servicing unit, power operated, trailer mounted, 23 cfm, compressor, reciprocating, GED (Elliott Machine model ENG 3), NSN 4930-00-935-4451.

"18 May 1990."

Direct support, general support, and depot maintenance repair parts and special tools lists : welding machine, arc, AC/DC, 300 amp, transformer rectifier, constant current, base mounted (Eutectic Corp. model MD301 FED), FSN 3431-235-4728.

"October 1971."

Direct support, general support, and depot maintenance repair parts and special tools list : armament subsystem, helicopter, 7.62 millimeter machine gun, high rate, XM27E1, (1005-933-6242), (used on OH-6A helicopter).

Includes index.

Organizational and direct support maintenance manual for machine gun, 7.62MM, M240 (1005-01-025-8095) and machine gun, 7.62MM, M240C (1005-01-085-4758).

Includes index.

Direct and general support maintenance manual : armament subsystem, helicopter, 7.62 millimeter machine gun, high rate, XM27E1 (1005-933-6242) (used on OH-6A helicopters).

"July 1969."

Operator, organizational, direct support and general support maintenance manual : welding machine, ARC, AC/DC, 300 AMP, transformer rectifier, constant current, base mounted (Eutectic Corp. model MD301 FED) FSN 3431-235-4728.

Includes index.

Organizational, direct and general support, and depot maintenance repair parts and special tools list : welding machine, ARC, G.E.D. generator, 300 amp, DC, constant current, consistant potential, skid mounted, (Libby welding model LTO 300), FSN 3431-253-0558.

"March 1971."

Operator, organizational, direct support, and general support maintenance manual : welding machine, arc, AC/DC, 300 amp, transformer rectifier, constant current, base mounted (Eutectic Corp. model MD301 FED), FSN 3431-235-4728.

"September 1970."

Operator, organizational, direct support, and general support maintenance manual, including repair parts and special tools list : welding machine, arc, general and inert gas, shielded, transformer-rectifier type, AC and DC, 300 ampere rating at 60% duty cycle (Harnischfeger model DAR-300HFSG), FSN 3431-984-3401, (Harnischfeger model 2100H2007), FSN 3431-926-3746.

Includes index.

Operator, organizational, direct and general support and depot maintenance manual : welding machine, arc, generator, gasoline engine driven, 300 amp, DC (Libby model LE-300) FSN 3431-810-9696, (Libby model LEW-300) FSN 3431-991-2961, (Libby model LEB-300) FSN 3431-072-0327.

Includes index.

Direct and general support and depot maintenance repair parts and special tools list : welding machine, arc, generator, electric motor driven, AC, 220V, 3 phrase [i.e. phase], 60HZ, single operator, remote control, 300 amp DC arc, wheel MTD ....

"December 1968."