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The paper presents a controller for an active filter to compensate reactive power and current harmonic distortion in a single phase system, i.e., to guarantee a power factor close to unity. The proposed controller considers the negative effects caused by the interaction between load and line impedances, which may lead to instabilities. In particular, the scheme provides a solution in the critical...
This work presents a control algorithm for an active resonance damper. This kind of equipment must act as a harmonic impedance in order to damp harmonic propagation throughout a distribution feeder. This harmonic resistance must be equal to the characteristic impedance of the distribution feeder in order to achieve optimized compensating currents. As the analytical calculation of this impedance is...
Theoretical and experimental results are presented for op-amp compensation using split-length transistors. By using split-length devices the right-half plane zero which plagues op-amp performance can be eliminated. Experimental results indicate substantial enhancements in speed while reducing power consumption and layout area. Further, these techniques can be used to compensate op-amps when using...
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