| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a control system of a self-excitation type converter which can suppress pulsation of a power present at a dc side, since a positive phase voltage, an opposite phase voltage command values, since an output power becomes constant irrespective of a system state are generated, which can reduce the capacity of a dc capacitor for compensating the pulsation and which can output a predetermined power constantly, even in a state with a link point voltage being in an unbalanced state. <P>SOLUTION: The control system of the self-excitation type converter includes a 3-phase to 2-phase converter for capturing an ac system voltage of a link point and the output current of a converter to form a signal made of each voltage value/current value of a positive phase and a negative phase, a current command value generator for generating each current command value of the positive phase and the opposite phase, based on the voltage value from the 3-phase to 2-phase converter and the current command value from a post control system, a voltage command value arithmetic unit inputting a signal made of the voltage value/current value from the 3-phase to 2-phase converter and inputting the current command value from the current command value generator for generating the voltage command value corresponding to the current command value, and a 2-phase to 3-phase converter for 3-phase converting the voltage command value of the generated positive phase and the opposite phase. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
