| Title |
Development of Back-emf Filter Circuit for Driving Sensorless BLDC Motors |
| Authors |
Doo-Young Song ; Sung-Ho Lee ; Tae-Uk Jung ; Su-Eog Cho ; Sung-Jun Park ; Dong-Ok Kim |
| Keywords |
Back-emf filter circuit; Sensorless bldc motor; Absolute value filter circuit; Clamping circuit |
| Abstract |
In this paper, a new single-phase utility-interactive inverter system for residential power generation with fuel cell is proposed. The proposed inverter system is not only capable of working in both stand-alone and grid-connected mode, but also ensures smooth and automatic transfer between the two modes of operation. The proposed control method has little steady-state error and good transient response characteristic. Also, the control method can be implemented using low-cost, fixed point DSP since it has simpler structure, smaller amount of calculation, and smaller number of sensors. The controller for the proposed utility-interactive inverter system is described, and the validity is verified through simulation and experiment. |