Loading...
Please wait, while we are loading the content...
Similar Documents
A Design of Programmable Low Pass Filter to Reduce the ZCP Estimation Error at High Speed BLDC Sensorless Drive
| Content Provider | Semantic Scholar |
|---|---|
| Author | Seo, Eunjeong Lee, Kangseok Lee, Wootaik |
| Copyright Year | 2014 |
| Abstract | This paper presents a design method of programmable low pass filter(PLPF) which reduce an estimation error of a zero crossing point(ZCP) for a high speed brushless DC(BLDC) motor drive. BLDC motor sensorless drive is possible by estimation of ZCP. The ZCP estimated by detecting a change of back-EMF polarity has the estimation error because noises exist on the measured back-EMF. Therefore a calculated commutation timing using the ZCP is inaccurate. And the inexact commutation timing leads to ripples of 3-phase current and degradation of drive performance. This paper proposes the design method of the PLPF to overcome these problems. First, a speed calculated a inaccurate period of the ZCP is analyzed in the frequency domain. Then, the PLPF that has varying cut-off frequency according to change of the speed is designed on the frequency analysis result. The proposed method is verified by the experiment. |
| Starting Page | 35 |
| Ending Page | 41 |
| Page Count | 7 |
| File Format | PDF HTM / HTML |
| DOI | 10.5370/KIEE.2014.63.1.035 |
| Volume Number | 63 |
| Alternate Webpage(s) | http://ocean.kisti.re.kr/downfile/volume/kiee/DHJGII/2014/v63n1/DHJGII_2014_v63n1_35.pdf |
| Alternate Webpage(s) | https://doi.org/10.5370/KIEE.2014.63.1.035 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
