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Christoph Haederli - Les thèses en ligne de l'INP - Institut National ...

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184 App<strong>en</strong>dix<br />

9.5 NP curr<strong>en</strong>ts as a function of m, ϕ and θ<br />

9.5.1 Maximum and minimum curr<strong>en</strong>ts for SMC and ANPC3<br />

TABLE 85, NP CURRENT LIMITS (MIN AND MAX) IN SYMMETRICAL 3 PHASE SYSTEMS MAKING USE<br />

OF DIFFERENT MODULATION TYPES AND CM VOLTAGE. THE ANGLE INDICATES POSITION OF THE<br />

VOLTAGE VECTOR IN THE FIRST 60° SEGMENT IN THE αβ<br />

αβ-FRAME<br />

Condition<br />

Standard<br />

modulation<br />

SMC A<br />

modulation<br />

SMC B<br />

modulation<br />

Std. and A<br />

combined<br />

All types<br />

combined<br />

cos(ϕ)=1<br />

I NP-min<br />

cos(ϕ)=1<br />

I NP-max<br />

cos(ϕ)=0.81<br />

(inductive)<br />

I NP-min<br />

cos(ϕ)=0.81<br />

(inductive)<br />

I NP-max<br />

cos(ϕ)=0<br />

(inductive)<br />

I NP-min<br />

cos(ϕ)=0<br />

(inductive)<br />

I NP-max<br />

i<br />

θ<br />

m<br />

Axes <strong>de</strong>finition applies to all of TABLE 85 and TABLE 87. m = 2/sqrt(3) for maximum<br />

sinusoidal phase to phase output voltage.

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