Harmonics in power system

Harmonics in power system Electrical and Computer Engineering Student Colorado State University Minh Anh Thi Nguyen E-mail: [email_address] [email_address]

Outline ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

History of harmonics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Linear loads ,[object Object],[object Object],[object Object],[object Object]

Non-linear loads ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

How big is this problem? ,[object Object],[object Object],[object Object]

Single phase vs. three phase load harmonics ,[object Object],[object Object],[object Object],[object Object],[object Object]

General definition ,[object Object],[object Object],[object Object],[object Object]

General definition ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

What are harmonics? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

What are causes of harmonics? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Harmonic current flow ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

How do you check for harmonics currents? ,[object Object],[object Object],[object Object],[object Object]

Will harmonic currents affect your power costs? ,[object Object],[object Object],[object Object],[object Object],[object Object]

Harmonics components ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

How is such component divided obtain ,[object Object],[object Object],[object Object]

Three phase Balance and unbalance Systems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

What problem do harmonics create? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

How do you know if you have a harmonic problem? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Circuits ,[object Object],[object Object]

circuit1 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Circuit 2 ,[object Object], * U:E461chematic1.sch **** FOURIER ANALYSIS TEMPERATURE = 27.000 DEG C *********************************************************************** FOURIER COMPONENTS OF TRANSIENT RESPONSE V(Vout) DC COMPONENT = 3.388514E+01 HARMONIC FREQUENCY FOURIER NORMALIZED PHASE NORMALIZED NO (HZ) COMPONENT COMPONENT (DEG) PHASE (DEG) 1 6.000E+01 5.936E+02 1.000E+00 -2.692E+01 0.000E+00 2 1.200E+02 4.194E+01 7.066E-02 4.173E+01 9.558E+01 3 1.800E+02 3.153E+01 5.311E-02 3.283E+01 1.136E+02 4 2.400E+02 2.487E+01 4.190E-02 2.837E+01 1.361E+02 TOTAL HARMONIC DISTORTION = 9.782316E+00 PERCENT

Bipolar amplifier circuit ,[object Object]

Bipolar amplifier circuit ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

If you have a harmonics problem, what should you do? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Reducing harmonics ,[object Object],[object Object],[object Object],[object Object]

Reducing harmonics (const.) ,[object Object],[object Object]

Why harmonic unknown or untreated in electrical distribution system? ,[object Object],[object Object],[object Object],[object Object]

Design a hearing aid or heart pacemaker

Output results ,[object Object]

How can we treat harmonics system? ,[object Object],[object Object],[object Object],[object Object],[object Object]

Why are voltage and current harmonics a problem ,[object Object],[object Object],[object Object],[object Object],[object Object]

IEEE standard STD 519 ,[object Object],[object Object],[object Object],[object Object],[object Object]

IEEE standard 519 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

What will happen if you do not follow the IEEE Std 519 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Unexpected harmonics creates ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Solution ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Reference ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Harmonics in power system

Empfohlen

Empfohlen

Weitere ähnliche Inhalte

Was ist angesagt?

Was ist angesagt? (20)

Ähnlich wie Harmonics in power system

Ähnlich wie Harmonics in power system (20)

Mehr von Minh Anh Nguyen

Mehr von Minh Anh Nguyen (20)

Kürzlich hochgeladen

Kürzlich hochgeladen (20)

Harmonics in power system