TY - GEN

T1 - The reference active source current for active power filter in an unbalanced three-phase system via the method of instantaneous power theory

AU - Chen, C. L.

AU - Lin, C. E.

AU - Huang, C. L.

N1 - Publisher Copyright:
© 1994 IEEE.

PY - 1994

Y1 - 1994

N2 - This paper presents a method to generate the reference active source current for active filter operating under unbalanced three-phase sinusoidal system using the instantaneous power theory. The conventional application of the instantaneous power theory is effective in a balanced three-phase sinusoidal system. However, in a practical system three-phase voltage unbalancing does generally exist. The proposed method uses the principle of geometrical similarity to process the zero-axis voltage and current into zero-sequence active current. From the theoretical formulations, the proposed method obtains the same result as the equal resistance synchronous detection method [5, 6]. The reference active source current is sinusoidal and in-phase to source voltage, and can directly be calculated without 0-d-q axis conversion. From computer simulations and circuit implementations, both results are satisfactory and have very good agreement.

AB - This paper presents a method to generate the reference active source current for active filter operating under unbalanced three-phase sinusoidal system using the instantaneous power theory. The conventional application of the instantaneous power theory is effective in a balanced three-phase sinusoidal system. However, in a practical system three-phase voltage unbalancing does generally exist. The proposed method uses the principle of geometrical similarity to process the zero-axis voltage and current into zero-sequence active current. From the theoretical formulations, the proposed method obtains the same result as the equal resistance synchronous detection method [5, 6]. The reference active source current is sinusoidal and in-phase to source voltage, and can directly be calculated without 0-d-q axis conversion. From computer simulations and circuit implementations, both results are satisfactory and have very good agreement.

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U2 - 10.1109/IMTC.1994.351931

DO - 10.1109/IMTC.1994.351931

M3 - Conference contribution

AN - SCOPUS:85064707780

T3 - Conference Proceedings - 10th Anniv., IMTC 1994: Advanced Technologies in I and M. 1994 IEEE Instrumentation and Measurement Technology Conference

SP - 1020

EP - 1023

BT - Conference Proceedings - 10th Anniv., IMTC 1994

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 1994 IEEE Instrumentation and Measurement Technology Conference, IMTC 1994

Y2 - 10 May 1994 through 12 May 1994

ER -