Connection table

Input parameters

Table 1. Building the winding architecture – Filling of the connection table

1	Selection of the number of layers. The solutions depend on the number of slots, the number of poles and the number of phases. Example: With 12 slots,10 poles and 3 phases, only one solution is proposed: 1 layer. The three possible cases are illustrated in the Easy mode section.
2	Definition of the coil layout i.e. how the coil sections are distributed into the slot. The three possible choices are: Full = At least one coil into one slot Superimposed = At least two superimposed coils into one slot Adjacent = At least two adjacent coils into one slot The solutions depend on the number of phases, the number of slots and the number of poles. Example 1: With 12 slots, 10 poles and 3 phases, two solutions are proposed: superimposed or adjacent. Note: in that case, only toothed winding is relevant. This corresponds to an adjacent coil layout. Example 2: With 48 slots, 8 poles and 3 phases, one solution is imposed: Full.
3	Definition of the number of duplications. This number is computed and proposed to the user. It depends on the number of slots and the number of poles. When the winding architecture to build is cut into several identical parts, the corresponding possible number of duplications are proposed (a short list). By selecting the number of duplications, the user must define only 1/n of the connection table.
4	The number of circuits to be duplicated represents the number of elementary circuits to be defined inside each sector to be duplicated. In this example 2 circuits are defined in the represented sector. This is why there are 2 connection tables to be filled in. One for each circuit: Phase 1 – Circuit 1 and Phase 1 – Circuit 2
5	Phase offset – See explanation and illustration below.
6	The connection table(s) must be filled in. 1 or 2, according to the number of circuits to be represented inside the considered elementary sector. Indication of the slot number that contains the input end of the coil. Define the coil layout in the slot. Indication of the slot number that contains the output end of the coil. Define the coil layout in the slot. Then, another line is proposed to describe the next coil.

Phase offset parameter

Table 2. Building the winding architecture – Filling of the connection table – Phase offset

1	Definition of the phase offset = number of slot pitch between each phase.
2	Make the phase visible or not. Note: All the phases are identical. Phases 2 and 3 are identical to Phase 1 and are displayed in the winding by considering the phase offset.

Winding direction for coils

Table 3. Orient the coils when defining the phase circuits

1	Definition of a positive orientation of a coil, i.e., in the clockwise direction from the connection size (=ascending order of slot numbers).
2	Definition of a negative orientation of a coil, i.e., in the counterclockwise direction from the connection size (=descending order of slot numbers).

Additional information

1. The real distribution of the parallel paths in the winding is taken into account for performing the tests. It is why one needs to know how the parallel paths are distributed. To do that, in the expert mode, to define the connection table, the user can define the number of circuits to be duplicated, and for that, he must fill in a connection table for each elementary parallel path.

   Table 4. Dialog box for defining the connection table while using the expert mode

   1	Number of duplications. See the definition in the table above.
   2	Number of circuits to be duplicated. See the definition in the table above.
   3	Representation of the two circuits inside the considered sector.

   Then, the list of possible number of parallel paths « No. parallel paths » adapts itself in function to the number of duplications « No. duplications » and the number of circuits to be duplicated « No. circuits to be duplicated ».

   Here is the resulting layout of the winding architecture below. There are always 4 possible parallel paths. These circuits can be well connected.