Zero Voltage Vector Sampling Method for PMSM Three-Phase Current Reconstruction Using Single Current Sensor
| Autor: | Hao Yan, Jibin Zou, Yunhui Li, Yongxiang Xu, Wang Baochao |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Computer science
020209 energy 020208 electrical & electronic engineering 02 engineering and technology Signal Three-phase Control theory Modulation Position (vector) Mesh analysis 0202 electrical engineering electronic engineering information engineering Current sensor Electrical and Electronic Engineering Pulse-width modulation |
| Zdroj: | IEEE Transactions on Power Electronics. 32:3797-3807 |
| ISSN: | 1941-0107 0885-8993 |
| DOI: | 10.1109/tpel.2016.2588141 |
| Popis: | For the purpose of reducing cost and volume, techniques of reconstructing three-phase currents through a single current sensor have been reported for permanent magnet synchronous motor vector control system. In existing studies, the reconstruction precision is largely affected by the dead zones in space vector PWM plane, which requires additional efforts to compensate the dead zones either by modifying pulse width modulation (PWM) modulation strategy or by phase-shifting of PWM signal. In this paper, a novel zero voltage vector sampling method (ZVVSM) is proposed, which can move the current reconstruction dead zones in low modulation region and sector boundary regions toward the outline of the space vector hexagon without modifying PWM signal. By arranging the single current sensor at a novel position, the proposed method is able to sample current in two zero voltage vectors (ZVV). ZVVSM avoids the complicated algorithms as well as the increase of the switching times, so that it is beneficial to the PMSM drive performance. The proposed method is validated by both simulation and experiments. |
| Databáze: | OpenAIRE |
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