| Title |
Integrative Control of Series Active Power Filters for Source Voltage Unbalance Compensation and Power Factor Correction |
| Authors |
장정익(Jang, Jeong-Ik) ; 석줄기(Seok, Jul-Ki) ; 이동춘(Lee, Dong-Choon) |
| Keywords |
Series Active Power Filter ; source voltage unbalance ; current harmonics ; power factor correction |
| Abstract |
This paper presents an integrative control scheme for series-type active power filters combined with shunt passive filters not only to compensate for the source voltage unbalance and current harmonics but also to correct the power factor. To reduce the power capacity of the active filters, passive filters are connected in parallel. Diode rectifiers are replaced by the PWM converters in order to feed the real power back to the source. Power factor control is performed by changing the phase of the load voltage so that the phase of the source current coincides with that of the source voltage. The resultant voltage reference is the addition of the voltage component compensating for the source voltage unbalance and harmonic currents and the voltage component correcting the power factor. The validity of the proposed algorithm has been verified by experimental results. |