Abstract-A single-phase active power filter is presented for small-scale, single-phase loads based on the second-order generalized integrator control method is presented in this article. The proposed system does not require voltage sensors on the AC and/or DC side. Only two current sensors are used to measure load and converter currents. Consequently, a proportional-integral regulator is not used, and there is no need for additional calculations for the determination of the grid-current amplitude. To obtain the correct reference grid current, the distorted load current is first processed by using the second-order generalized integrator algorithm, which does not require voltage information. A step-by-step performance study, in a real-time environment, shows that the proposed control technique is able to generate the proper compensating reference current for small-scale non-linear loads. As a result, the total harmonic distortion of the grid current is reduced from 25.33 to 3.80%, which meets the recommended IEEE 519-1992 Standard.
Voltage Sensorless Control of Single-phase Active Power Filter Based on the Second-order Generalized Integrator Algorithm
2015
Aufsatz (Zeitschrift)
Englisch
voltage sensorless , IEEE standards , Electrical currents , Electronics , active power filter , hysteresis controller , real-time experiment , non-linear load , Control systems , Harmonic analysis , OPAL-RT , simulation , second-order generalized integrator , harmonic currents , voltage source converter , Sensors , Algorithms
New Control Algorithm for Single-Phase Series Active Power Filter
Online Contents | 2015
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