Investigation of the Current Harmonic Parameters of Wind Energy Converters
作者:
所属专业方向:
Wind Energy
摘要:
Current harmonic parameters of six grid connected
wind energy converters (WECs) with a power of 1.5 MW and
1.8 MW were investigated. The evaluation was done according to
the basic guidelines for harmonic limits EN 61000-3-2 and IEC
1000-3-3. Focus was on the definition and explanation of a typical
shape of the standard parameters Total Harmonic Distortion
(THD), Partial Weighted Harmonic Distortion (PWHD) and the
self-defined parameter Total Harmonic Distortion with
consideration of interharmonics (THDz) over the relative power
of the WECs. Caused by the working principle of the power
electronic voltage-source-inverters (VSI) used, the harmonic
parameters show a clearly definable pattern, depending on the
relative power of the WECs. The context between the power
electronic converter operation and the format of the power
quality curves over the relative power is given.
Current harmonic parameters of six grid connected0 u/ i1 V f: V' o: g
wind energy converters (WECs) with a power of 1.5 MW and5 o: m, K$ _& ~8 x- m7 z
1.8 MW were investigated. The evaluation was done according to0 J. c. m1 a$ u% ]( H* ^
the basic guidelines for harmonic limits EN 61000-3-2 and IEC 9 S9 `- ?' m- F; l1000-3-3. Focus was on the definition and explanation of a typical 8 }3 L" C' S- e0 F1 M$ j) ~( M, k! Yshape of the standard parameters Total Harmonic Distortion ' ]9 T% U5 [+ V: k: r0 r& p, G(THD), Partial Weighted Harmonic Distortion (PWHD) and the" c _* J ~! H' K; v* x1 l' H
self-defined parameter Total Harmonic Distortion with * Y9 X5 \% m. ^" Zconsideration of interharmonics (THDz) over the relative power + V( @1 x. [% Z+ O0 m' i# Wof the WECs. Caused by the working principle of the power6 n5 T4 g1 w+ P7 D: i: J+ W
electronic voltage-source-inverters (VSI) used, the harmonic/ b3 e& ^: B3 \9 U5 p. G- {
parameters show a clearly definable pattern, depending on the % O" u) [ x! V. mrelative power of the WECs. The context between the power ( F, @, c) |! W4 d/ p8 m/ Relectronic converter operation and the format of the power8 v9 L* E% r; _4 }. o: U1 _- j
quality curves over the relative power is given.
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发表于 2011-8-22 19:30:55
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