This chapter will discuss the most recent developments of the periodic control (PC) technology, such as the PC for multi-period signals and the periodic signal filtering problem. All these developments would extend the PC to more extensive engineering practice and can enable PC to further improve system performance.

Chapter Contents:

• Abstract
• 7.1 Periodic control for multi-period signals
• 7.1.1 Digital multi-period repetitive control
• 7.1.2 Multi-period resonant control
• 7.1.3 Frequency-adaptive periodic control for multi-period signals
• 7.2 Periodic signal filtering
• 7.2.1 Notch and comb filters
• 7.2.2 Digital notch and comb filters
• 7.2.3 Discrete Fourier transform-based comb filter
• 7.2.4 Frequency-adaptive notch and comb filters
• 7.2.5 Periodic signal filtering for grid-connected converters
• 7.3 Summary
• References

Inspec keywords: power convertors; periodic control

Other keywords: periodic control; PC; power converter

Subjects: Control of electric power systems; Optimal control; Time-varying control systems; Power convertors and power supplies to apparatus