A novel adaptive hysteresis band current control method for three-level based active power filter

作者：Ping Yangle^*; Chen Alian; Zhang Chenghui

来源：2012 IEEE 7th International Power Electronics and Motion Control Conference - ECCE Asia, IPEMC 2012, 2012-06-02 to 2012-06-05.

DOI：10.1109/IPEMC.2012.6259292

• Active power Filter
• Active power filters
• Adaptive hysteresis band current control
• Compensator current
• Control strategies
• Current control strategy
• DC-link voltages
• Filter inductors
• Hysteresis band
• Hysteresis bandwidth
• Matlab-Simulink
• Midpoint potentials
• Modulation frequencies
• Reference currents
• Supply voltages
• Switching loss
• Three-level
• Three-level inverters
• Vector projection

A novel adaptive hysteresis band (HB) current control strategy is used in active power filter (APF) based on three-level inverter in this paper. The hysteresis bandwidth is changed according to modulation frequency, supply voltage, dc-link voltage and slope of the reference compensator current in this method. Compared with the conventional HB control with unfixed switching frequency, the method proposed in this paper can keep the switching frequency constant so that the switching losses will be reduced and the design for filter inductor will be easier. An improved d-q method based on vector projection principle is applied to determine the reference current. In view of the HB control strategy used, a matched method which adjusts the switching combinations is used to maintain the balance of the midpoint potential. Finally, results of the simulation using the MATLAB Simulink show the validity of the control strategy presented.

• 出版日期2012