Patent ID: 11916504
Assignee: BYD COMPANY LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  H  Y | IPC B  H

Claim 2:
3. The energy conversion device according to claim 1, wherein
when L1 sets of the winding units of the L sets of winding units operate in the at least two sets of heating circuits, the L1 sets of the winding units correspond to L1 resultant current vectors, and form, L
   ⁢
   1
  
  2, pairs of the resultant current vectors; amplitudes of two resultant current vectors of each pair of the resultant current vectors are equal; at least one pair of the resultant current vectors are symmetrical with respect to a direct axis in the synchronous rotating reference frame; angles of two resultant current vectors of at least one pair of the resultant current vectors differ by 180°; L≥L1≥2; and L1 is an even number.