Abstract
In this article, we deal with the one-step time-delay problem in power converter and motor drive system applications implemented by the digital signal processor. For these wide applications, a novel one-step time-delay compensation algorithm is proposed, comprising a standard Luenberger-type observer including a learning algorithm and disturbance observer (DOB). The first novelty is to suggest the learning algorithm automatically determining the observer feedback gains according to the estimation error magnitude. The second is to introduce DOBs with estimation error integrators for removing the steady-state estimation errors, removing the additional adaptive and nonlinear damping compensation terms. The closed-loop observer behaviors are rigorously analyzed to present useful properties. The experimental data obtained using a 3-kW prototype dc-dc boost converter validates the effectiveness of the proposed algorithm.
Original language | English |
---|---|
Article number | 8825509 |
Pages (from-to) | 3789-3796 |
Number of pages | 8 |
Journal | IEEE Transactions on Industrial Informatics |
Volume | 16 |
Issue number | 6 |
DOIs | |
Publication status | Published - 2020 Jun |
Keywords
- Disturbance observer (DOB)
- learning algorithm
- observer
- one-step time delay
- stability analysis
ASJC Scopus subject areas
- Control and Systems Engineering
- Information Systems
- Computer Science Applications
- Electrical and Electronic Engineering