| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a phase modifier controller of phase modifying equipment for automatically performing control to optimum combination of phase modifier components and the optimum amount of phase modifiers according to current phase modifier conditions by way of shifting to an optional phase modifier control state different from a schedule control state. <P>SOLUTION: For every number of phase modifier, a positive-side SC capacitance and a negative-side ShR capacitance are set, and the positive-side SC total sum capacitance, the negative-side ShR total sum capacitance, and 0 (all phase modifier opening) capacitance are set. According to the SC capacitance class if the phase modifier sum control capacitance is a positive-side setting value and according to the ShR capacitance class if it is a negative-side setting value, control information is expressed by using phase modifier number mask data and the quantity of injection control. Then, an overall control information group, in which all capacitance class data is made into one control information group, is detected beforehand. SC injection/opening side control or ShR injection/opening side control is detected from a difference between a phase modifier total sum capacitance current value and a phase modifier sum control command capacitance, and the optimal combination and a phase modifier according to the current phase modifier connection condition is automatically selected out of all control information groups. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
