Dynamic Current Reference Determination of Electrically Excited Synchronous Machines Based on Torque Gradients of Copper Losses

Tang, Junfei, 1990 (författare): Chalmers tekniska högskola,Chalmers University of Technology

Jiang, Bowen, 1993 (författare): Chalmers tekniska högskola,Chalmers University of Technology

Chen, Hao, 1988 (författare): Chalmers tekniska högskola,Chalmers University of Technology

Liu, Yujing, 1962 (författare): Chalmers tekniska högskola,Chalmers University of Technology

Lundberg, Stefan, 1976 (författare): Chalmers tekniska högskola,Chalmers University of Technology

(creator_code:org_t)

2024
2024
Engelska.
Ingår i: IEEE Transactions on Power Electronics. - 0885-8993 .- 1941-0107. ; 39:6, s. 7423-7433

Relaterad länk:: https://research.cha...; visa fler...; https://doi.org/10.1...; visa färre...

Abstract Ämnesord

Stäng

Electrically excited synchronous machines (EESMs) have become an attractive solution to electric vehicles. The excitation of the machine can be regulated by adjusting field current. This introduces one additional degree of control freedom. The control of armature current in stator and field current in rotor is expected to not only reduce the total losses, but also dynamically redistribute the load on both windings so that neither of them overheats. To realize this function, an algorithm is proposed in this study to dynamically determine the current references in EESM torque control. A cost function is introduced by placing weights on stator and rotor copper losses separately. The weights can be adjusted dynamically. The cost function is minimized by moving the current reference vector. The moving of the vector is orthogonally decomposed into a torque-related component and a cost-related component. When current or voltage limits are reached, a cancellation technique is activated to constrain the reference vector. It is shown in experimental results that expected performance is achieved in all operating conditions.

Av författaren/redakt...: Tang, Junfei, 19 ...; Jiang, Bowen, 19 ...; Chen, Hao, 1988; Liu, Yujing, 196 ...; Lundberg, Stefan ...

Om ämnet

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Elektroteknik oc ...; och Reglerteknik

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Elektroteknik oc ...; och Annan elektrotek ...

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