Program “Electromechanical Automation Systems, Electric Drive and Electromobility”,faculty of Electric Power Engineering and Automatics of “Igor Sikorsky Kyiv Polytechnic Institute”

A simple control strategy for a three-phase shunt active power filter based on second-order sliding mode

A simple control strategy for a three-phase shunt active power filter based on second-order sliding mode

A simple control strategy for a three-phase shunt active power filter based on second-order sliding mode
Mysak T.V., Shapoval I.A.

A simple control strategy of the three-phase shunt active power filter that is connected to a non-linear load network is proposed. The filter consists of a voltage source inverter on fully controlled switches, capacitor storage, and a first-order three-phase RL filter. The decomposition of the object of study according to the rates of motion of the dynamic system was performed. The fast subsystem is a circuit of compensation current control, the slow subsystem performs stabilization of the capacitor voltage. An asymptotic double-twisting algorithm to control the DC voltage was used. For the current formation, a two-dimensional sliding surface is used, which is a linear combination of the components of two-dimensional vectors – the error of the current of the RL filter and some variable. The double-twisting algorithm to calculate the instantaneous value of this variable was also used. A simulation model is developed and the results of digital experiments are analyzed. A comparison of the proposed strategy with the traditional PI-regulation by the criteria of the duration of the transition process and the coefficient of harmonic distortions in the current consumed from the network is made.

Mysak T.V., Shapoval I.A. A simple control strategy for a three-phase shunt active power filter based on second-order sliding mode. Proceedings of the 4th International Conference on Intelligent and Power Systems (IEPS) 2020. Istanbul (Turkey). 7-11 September 2020.

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2022/2023 academic year


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