| 摘要 |
<p>PURPOSE:To improve the reliability by selecting and outputting an output whose absolute value is larger of outputs of plural sets of detecting parts for detecting a device to be controlled of a control object apparatus, and outputting a manipulated variable to the control object apparatus, based on its output signal. CONSTITUTION:An absolute value height selecting part 12 selects a signal whose absolute value is larger of a signal Va and a signal Vb and outputs a signal V, and in the same way, a signal I, a signal P, and a signal Q are outputted from a signal Ia and a signal Ib, a signal Pa and a signal Pb, and a signal Qa and a signal Qb, respectively by selecting the signal whose absolute value is larger, respectively. An adjusting part 10 executes the excitation control of a synchronizing machine 1, based on an output signal of the absolute value height selecting part 12, executes the control so that a terminal voltage coincides with a target value, and also, adjusts automatically a phase of an ignition pulse PL outputted to a thyristor rectifying device 4 in order to execute a restriction of an output excess current and an insufficient excitation restriction, a drift compensation, and a secondary side control. In such a way, the automatic controller having high reliability can be obtained.</p> |
