Suppression of Injection Voltage Disturbance for High-Frequency Square-Wave Injection Sensorless Drive With Regulation of Induced High-Frequency Current Ripple
| Autor: | Jang-Hwan Kim, Dongouk Kim, Seung-Ki Sul, Yong-Cheol Kwon, Rae-Sung Yu |
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| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Physics Rotor (electric) 020208 electrical & electronic engineering Ripple 02 engineering and technology Square wave 01 natural sciences Signal Industrial and Manufacturing Engineering law.invention Disturbance voltage Control and Systems Engineering Control theory law 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Inverter Electrical and Electronic Engineering Synchronous motor Voltage |
| Zdroj: | IEEE Transactions on Industry Applications. 52:302-312 |
| ISSN: | 1939-9367 0093-9994 |
| Popis: | In the square-wave voltage signal injection sensorless drive of the interior permanent-magnet synchronous machine, the injection voltage can be distorted by the inverter nonlinearity effects especially when the injection voltage is low. If that happens, a high-frequency (HF) current signal which contains the rotor position information could be also distorted, which directly leads to an error in the position estimation. This paper analyzes the effects of the inverter nonlinearity on injection voltage, on induced current ripple, and on the position estimation performance in sequence and proposes a voltage injection method to minimize the impact of the inverter nonlinearity by the regulation of the HF current ripple. By simulations and experiments, the performance of the proposed method has been verified. The experimental results show 19.7% reduction of position estimation error under 15% of rated voltage signal injection without increasing the current ripple at a certain operating condition. Moreover, the performance of position estimation is kept uniform regardless of the loading condition. |
| Databáze: | OpenAIRE |
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