Abstract
This paper presents a new method to improve the sensorless performance of matrix converter drives using a parameter estimation scheme. To improve low-speed sensorless performance, the nonlinearities of a matrix converter drive such as commutation delays, turn-on and turn-off times of switching devices, and ON-state switching device voltage drop is modeled using p-q-r transformation and compensated using a reference current control scheme. To eliminate the input current distortion due to the input voltage unbalance, a simple method using p-q-r transformation is also presented. The proposed compensation method is applied for high performance induction motor drives using a 3-kW matrix converter system without a speed sensor. Experimental results are shown to illustrate the feasibility of the proposed strategy.
| Original language | English |
|---|---|
| Pages (from-to) | 1639-1649 |
| Number of pages | 11 |
| Journal | IEEE Transactions on Industry Applications |
| Volume | 43 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2007 Nov |
Keywords
- Adaptive estimator
- Direct torque control with space vector modulation (DTC-SVM)
- Matrix converter
- Nonlinearity compensation
- Sensorless control
- p-q-r transformation
ASJC Scopus subject areas
- Control and Systems Engineering
- Industrial and Manufacturing Engineering
- Electrical and Electronic Engineering