Electrotechnical Systems

272 Electrotechnical Systems

Then, from the equations given in [17], the following expressions can be received for

the stator currents:

I

kkb

Ld

q

qq mq

dm

d

sl

1

12 2

1

=

+

()

ΨΨ ΨΨΨ––(–

)–

(5.100)

I

kkb

Ld

q

qq mq

dm

d

sl

2

21 1

1

=

()

ΨΨ ΨΨΨ––(– )– –

(5.101)

I

kkb

Ld

d

dd md

qm

q

sl

1

12 2

1

=

()

ΨΨ ΨΨΨ––(– )– –

(5.102)

I

kkb

Ld

d

dd md

qm

q

sl

2

21 1

1

=

+

()

ΨΨ ΨΨΨ––(–

)–

(5.103)

dkb

= 1

22

––

It is seen that when k = b = 0 these relationships come to (5.71), (5.72). The currents

I

kq

, I

kd

, I

fd

are determined by (5.73) through (5.75). Substituting these expressions for

the currents in (5.98), (5.99), the formulas for Ψ

mq

, Ψ

md

are derived:

Ψ

ΨΨ −Ψ−Ψ

Ψ

mq aq

qq dd

sl

kq

lkq

L

kb

Ld L

=

+

()

+

()

+





















12

1

1

2

() ...