where [L.sub.f] and [R.sub.f] are the
leakage inductance and the copper losses of the transformer, respectively, [C.sub.f] is the output capacitor and [[omega].sub.1] is the angular speed of the SRF ([[omega].sub.1] = 100[pi] rad/s); [v.sub.cd] and [v.sub.cq] are the d and q components of the capacitor voltage, which are the variables to be controlled, [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] are the current components through the
leakage inductance, [i.sub.sd] and [i.sub.sq] stand for the current of the load, and [u.sub.d] and [u.sub.q] are the VSC output voltage components.
spatial modulation of rotor
leakage inductance caused by the grooves in the rotor.
[L.sub.s] represents the parameter of stator
leakage inductance, [L.sub.r] represents the parameter of rotor
leakage inductance, and [L.sub.m] represents the parameter of mutual inductance.
As it is known, elaborating of the induction drive model requires values of rotor resistance, its
leakage inductance and mutual inductance of stator and rotor windings.
--[L.sub.lks]:
leakage inductance at transformer secondary side.
1 is the following: R1--primary winding serial resistance, L1--primary
leakage inductance, L2--primary magnetizing inductance, R3--secondary winding serial resistance, L3--secondary
leakage inductance, L4--secondary magnetizing inductance, C1--inter-windings capacitance, R2--isolation resistance between windings, K1--(K_linear) linear magnetic coupling between L2 and L4.
[L.sub.m] is magnetizing inductance, [L.sub.s] = [L.sub.1s] + [L.sub.m] is stator inductance, [L.sub.1s] is stator
leakage inductance; [L.sub.r] = [L.sub.1r] + [L.sub.m], [L.sub.1r] is rotor
leakage inductance referred to stator and [k.sub.1] = [L.sub.m] / [L.sub.s].
It consists of lumped parameters of primary winding (resistance of primary winding [R.sub.1],
leakage inductance of primary winding [L.sub.1]), secondary winding (resistance [R.sub.2],
leakage inductance [L.sub.2]) connected with burden equivalent resistance [R.sub.b].
where [L.sub.22] = [L.sub.11] = [L.sub.B] + [L.sub.m], [L.sub.m] = [L.sub.21] = [L.sub.12] = [i.sub.b1] + [i.sub.cir] and [i.sub.b5] = -[i.sub.b1] + [i.sub.cir], and where [i.sub.x] (x = a, b, c) is the line current, Lb is the
leakage inductance of the inductor windings, which is expected to be identical for all windings, and [L.sub.m] is the magnetizing inductance of the coupled inductor.
leakage inductance) reiUkiniai, kurie maPina tokio tipo transformatoriaus efektyvuma ir didPiausiaja darbine galia.