| 摘要 |
<p>In an elevator adapted to be driven by a converter connected to a system power source, a smoothing capacitor for smoothing an output of the converter, a PWN inverter for converting voltage of the smoothing capacitor into an alternating current of variable frequency and variable voltage, and a motor supplied by the inverter with power, an elevator control device comprises a solar battery, a capacitor of large capacity power of at least several Farads capable of accumulating an instantaneous output power generated by the solar battery, and output voltage regulating means for regulating an output voltage of the capacitor, and the elevator control device acts to feed generated power of the solar battery into the smoothing capacitor and enables a voltage control system of the converter to use energy generated by the solar battery as energy for operation of the elevator and automatically return surplus energy to a commercial power source.</p> |
