Dvr-linear-harmonics.rar - This paper describes the problem of voltage sags and swells and its severe impact on non linear loads or
sensitive loads. The dynamic voltage restorer (DVR) has become popular as a cost effective solution for the
protection of sensitive loads voltage sags and swells. The control of the compensation voltages in
DVR based on dqo algorithm is discussed. It first analyzes the power circuit of a DVR system in order to
come up with appropriate control limitations and control targets for the compensation voltage control. The
proposed control scheme is simple to design. Simulation results carried out by Matlab/Simulink verify the
performance of the proposed method.,2014-10-09 01:24:00,下载26次
13.USING-ACTIVE-POWER-FILTERS-TO-IMPROVE-POWER.ra - This paper describes different power quality
problems in distribution systems and their solutions with
power electronics based equipment. Shunt, hybrid and
series active power filters are described showing their
compensation characteristics and principles of operation.
Different power circuits topologies and control scheme for
each type of active power filter are analyzed. The
compensation characteristics of each topology with the
respective control scheme are proved by simulation and
experimentally.,2014-10-09 01:20:59,下载40次
dvrvlinearharmonicsmain.rar - The basic principle of the dynamic voltage restorer is to inject a voltage of required magnitude and frequency, so that it can restore the load side voltage to the desired amplitude and waveform even when the source voltage is unbalanced or distorted. ,2014-10-09 01:03:23,下载36次