REACTIVE POWER COMPENSATION USING STATCOM

SANDEEP A S10EE61R11

IIT KGP

VARIOUS COMPENSATION SCHEME

• SHUNT CAPACITOR

• SYNCHRONOUS CONDENSOR

• SVC

• STATCOM

ADVANTAGES OF STATCOM

FAST RESPONSECOMPENSATION FOR LAGGING AND LEADING

VARHARMONIC ELIMINATION

OPERATING PRINCIPLE

CONTROL STRATEGIES

VARIABLE VOLTAGE

PHASE ANGLE CONTROL WITH CONSTANT Vdc

SIMULATION CIRCUIT

CONTROL STRATEGY

WAVE FORMS

• REACTIVE POWER CALCULATION

WAVEFORMS

• CALACITOR VOLTAGE AND MODULATION INDEX

VOLTAGE AND CURRENT

VOLTAGE AND CURRENT CONTD…

VOLTAGE AND CURRENT CONTD…

DRAWBACK OF THE PROPOSED CONTROL STRATEGY

HARMONIC COMPENSATION IS NOT ACHIEVED

PRESENCE OF FOUR PI CONTROLLERS MAKES THE SYSTEM SLOW IN RESPONSE

IT ALSO REDUSES THE STABILITY

Id AND Iq ARE COUPLED

PROPOSED CONTROL STRATEGY

STATCOM MODEL

STATCOM MODEL CONTD…

STATCOM MODEL CONTD…

DECOUPLING OF Id AND Iq

DECOUPLING OF Id AND Iq CONTD…

DECOUPLING OF Id AND Iq CONTD…

CONCLUSION

STATCOM HAVE FAST AND DYNAMIC PERFORMANCE

VARIOUS CONTROL STRATEGY INVOLVED

HARMONIC ELIMINATION

REFERENCES A Minimal Harmonic Controller for a STATCOM Ben-Sheng Chen and Yuan-

Yih Hsu, IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 55, NO. 2, FEBRUARY 2008

Current Control ofAngle Controlled STATCOM Zhengping Xi, Student Member, IEEE, and Subhashish Bhattacharya, ember, IEEE, 2007 39th North American Power Symposium (NAPS 2007)

A Decoupling-Controlled STATCOM For Power Quality Improvement Of Impact Loads Chunpeng Zhang, Qirong Jiang, Luyuan Tong

SELECTION OF PASSIVE ELEMENTS FOR A THREE-LEVEL INVERTER BASED STATIC SYNCHRONOUS COMPENSATOR J.B.Ekanayake, Member, IEEE, N.Je nkins, Senior Member, IEEE, IEEE Transactions on Power Delivery, Vol. 14, No. 2, April 1999