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# 用于 PMSM 的直流母线电容器

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1 解答

# 用于PMSM的Re:直流母线电容器

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W = U*I*Ton

Q = C* ((U+ ΔU) ^2-(U-ΔU ) ^2) /2 = 2*C*U* ΔU

ΔU = 1/2 Vripple = 1/2 * 10% *U = 5% U

Q = W = > 2*C*U* ΔU = U*I*Ton

= > Cmax = (Ipeak*Ton)/(2* ΔU) = (Ipeak*Ton)/(10% *U) =（20 *30）/（10% * 310）u F ≥ 20uF

Q = 1/2*W = 2*C*U* ΔU = 1/2*U*I*T > on

Cmin = 1/2* (Ipeak*Ton)/(10% *U) ≥ 10uF

BR，

7 回复数

# 用于PMSM的Re:直流母线电容器

Community Manager
Community Manager

BR，

# 用于PMSM的Re:直流母线电容器

Community Manager
Community Manager

# 用于PMSM的Re:直流母线电容器

Community Manager
Community Manager

W = U*I*Ton

Q = C* ((U+ ΔU) ^2-(U-ΔU ) ^2) /2 = 2*C*U* ΔU

ΔU = 1/2 Vripple = 1/2 * 10% *U = 5% U

Q = W = > 2*C*U* ΔU = U*I*Ton

= > Cmax = (Ipeak*Ton)/(2* ΔU) = (Ipeak*Ton)/(10% *U) =（20 *30）/（10% * 310）u F ≥ 20uF

Q = 1/2*W = 2*C*U* ΔU = 1/2*U*I*T > on

Cmin = 1/2* (Ipeak*Ton)/(10% *U) ≥ 10uF

BR，

# 用于PMSM的Re:直流母线电容器

Community Manager
Community Manager

# 用于PMSM的Re:直流母线电容器

Community Manager
Community Manager

BR，

# 用于PMSM的Re:直流母线电容器

Community Manager
Community Manager

# 用于PMSM的Re:直流母线电容器

Community Manager
Community Manager

https://www.infineon.com/dgdl/Infineon-AP32370_PMSM_FOC_for_XMC1000_4000-ApplicationNotes-v01_06-EN....

BR，