| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To improve and maintain power quality of an interconnected power system when connecting a power converter, which enables transfer of power between the primary side and the secondary side of a wound-rotor induction generator, and executing speed-variable control and power factor control. <P>SOLUTION: This vector controller converts the coordinates of primary voltage and the primary current of the wound-rotor induction generator into three phases and two phases and outputs converted signals to an active-reactive power operator part thereby generating primary active power and primary reactive power. It generates a secondary q-axis target current from a difference signal between this primary active power and the control target value, and a secondary d-axis target current from a difference signal between the primary reactive power and the control target value, and controls inverters 5 and 6 for excitation, each independently regarding active power and reactive power, according to this secondary d- and q-axes target currents, thereby achieving high speed to change and improving control accuracy. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
