| Title |
A Simple Averge Power Theory and Modified Compensation Performance Evaluation of Active Power Filters |
| Abstract |
The fictitious power theory in time domain is very easy to understand, but power analyzing speed of active power is increased, because power is analyzed using signal techniques based on correlation between voltage and current waveforms. Also, conventional methods in time/frequency domain to evaluate the compensation performance of active power filters are not provided easy solutions. So, the authors have previously proposed 3-D current coordinates which is composed into active component, fundamental reactive component and distorted component of nonlinear loads current. This method has excellent performance, but can not evaluate the characteristics of nonlinear load current whether It is inductive or capacitive. Therefore, To overcome problems mentioned previously, this paper deals with the simple average power theory and the modified 3-D current coordinates for evaluating the compensation performance of active power filters. To confirm the validity, active power filter simulator is developed using C-language. From the simulation, results are discussed their utility. |