An Improved One Cycle Control for Active Power Filters under Non-Ideal Voltage Conditions

Lei Wang; Chunguang Ren; Yu Yang; Xiaoqing Han; Peng Wang

An Improved One Cycle Control for Active Power Filters under Non-Ideal Voltage Conditions

Vol. 16, No. 6, pp. 2350-2358, Nov. 2016

10.6113/JPE.2016.16.6.2350

Active Power Filters (APFs)

Non-ideal voltage

One Cycle Control (OCC)

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Abstract

The one cycle control (OCC) scheme for active power filters (APFs) has shown excellent harmonic suppression and implementation simplicity. However, its real world application is limited because the non-ideal supply voltage for APFs can influence its performance so that the source currents are still distorted after compensation. This paper proposes a modified one cycle control (MOCC) scheme to improve the performance of three-phase shunt APFs under non-ideal supply voltage conditions. In this paper a detailed mathematical derivation has been presented and the key control law of the MOCC has been developed for adaption to the non-ideal supply voltages, following the control philosophy of simplicity. A relatively simple sequence filter is introduced to extract the harmonic components of supply voltages. The modified scheme can be easily implemented. The proposed control strategy has excellent performance and a 5kVA APF hardware platform has been implemented to validate the feasibility and performance of the proposed strategy.

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Cite this article

[IEEE Style]

L. Wang, C. Ren, Y. Yang, X. Han, P. Wang, "An Improved One Cycle Control for Active Power Filters under Non-Ideal Voltage Conditions," Journal of Power Electronics, vol. 16, no. 6, pp. 2350-2358, 2016. DOI: 10.6113/JPE.2016.16.6.2350.

[ACM Style]

Lei Wang, Chunguang Ren, Yu Yang, Xiaoqing Han, and Peng Wang. 2016. An Improved One Cycle Control for Active Power Filters under Non-Ideal Voltage Conditions. Journal of Power Electronics, 16, 6, (2016), 2350-2358. DOI: 10.6113/JPE.2016.16.6.2350.