A Multiband Shunt Hybrid Active Filter with Sensorless Control

Surendra Kumar S; Partha Sarathi Sensarma

A Multiband Shunt Hybrid Active Filter with Sensorless Control

Surendra Kumar S

Partha Sarathi Sensarma

Vol. 8, No. 4, pp. 317-324, Oct. 2008

10.6113/JPE.2008.8.4.317

Multiband Shunt Hybrid Active Filter

Harmonic extraction

Multiple Synchronous Reference Frames

Poleshift controller

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Abstract

This paper proposes a Multiband Shunt Hybrid Active Filter (SHAF) with sensorless control. A plant is modeled in the discrete- time domain and a controller is designed using the Pole shifting law in the polynomial domain. This control approach is very useful for filtering the load harmonics with reduced sensor counts where a low cost solution like SHAF is required. Multiple Synchronous Reference Frames (MSRF) and low pass filters are used to measure the 5th and 7th harmonic components separately from the load and filter currents. Individual current controllers are designed for the 5th and 7th harmonic currents. Control is realized in the stationary, three-phase (abc) reference frame. Performance of the controller is validated through simulation, using realistic plant and controller models, as well as experimentally on a full-scale distribution system.

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Cite this article

[IEEE Style]

S. K. S and P. S. Sensarma, "A Multiband Shunt Hybrid Active Filter with Sensorless Control," Journal of Power Electronics, vol. 8, no. 4, pp. 317-324, 2008. DOI: 10.6113/JPE.2008.8.4.317.

[ACM Style]

Surendra Kumar S and Partha Sarathi Sensarma. 2008. A Multiband Shunt Hybrid Active Filter with Sensorless Control. Journal of Power Electronics, 8, 4, (2008), 317-324. DOI: 10.6113/JPE.2008.8.4.317.