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ÇUKUROVA UNIVERSITY INSTITUTE OF NATURAL AND APPLIED ... ÇUKUROVA UNIVERSITY INSTITUTE OF NATURAL AND APPLIED ...

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4. MODELING OF PROPOSED DVR Mustafa İNCİ according to (4.47) and (4.48). The coefficient γ in (4.47) is 1 when V presag cosϑ > V cosϑ ; otherwise, it is “-1”(Ajaei et al.,2011) presag S S V inj 2 ( V cosϑ −V cosϑ ) − ( V sinϑ −V sinϑ ) ) 2 = γ × (4.49) presag presag S S presag presag S S ϑ inj ⎛ ⎞ − Vpresag sinϑpresag −VS sinϑS = tan 1 ⎜ ⎟ (4.50) ⎝Vpresag cosϑpresag −VS cosϑS ⎠ Figure 4.18. Phasor subtraction 73

4. MODELING <strong>OF</strong> PROPOSED DVR Mustafa İNCİ<br />

according to (4.47) and (4.48). The coefficient γ in (4.47) is 1 when<br />

V<br />

presag<br />

cosϑ > V cosϑ<br />

; otherwise, it is “-1”(Ajaei et al.,2011)<br />

presag<br />

S<br />

S<br />

V<br />

inj<br />

2<br />

( V cosϑ<br />

−V<br />

cosϑ<br />

) − ( V sinϑ<br />

−V<br />

sinϑ<br />

) )<br />

2<br />

= γ ×<br />

(4.49)<br />

presag<br />

presag<br />

S<br />

S<br />

presag<br />

presag<br />

S<br />

S<br />

ϑ<br />

inj<br />

⎛<br />

⎞<br />

−<br />

Vpresag<br />

sinϑpresag<br />

−VS<br />

sinϑS<br />

= tan 1 ⎜<br />

⎟<br />

(4.50)<br />

⎝Vpresag<br />

cosϑpresag<br />

−VS<br />

cosϑS<br />

⎠<br />

Figure 4.18. Phasor subtraction<br />

73

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