| 摘要 |
<p>The invention relates to an automation system for the isolated operation of an asynchronous motor as a generator, in order to operate both connected to the national energy system and in an isolated network. According to the invention, the system provides the operation of a generator () both connected to the national energy system () and in an isolated network (), and it comprises a programmable automatic device () with specialized interfaces for the acquisition of digital and analogue quantities in standard format: pressures, levels, electrical quantities provided by a measuring plant (), temperature acquisition (), fast digital inputs () used for measuring the speed of a hydro-aggregate, automatic device () which provides the processing of the acquired information and generates commands and digital or analogue quantities for controlling the execution elements: driving apparatus (), water intake valve (), emergency valve (), generator terminal switch (), capacitor bank (), for compensating the reactive power, dissipation load regulator () for isolated operation; the system also comprises a display (), a module () of electrical protections which provides the safety protection of the consumers when there occur dangerous voltages, and a power unit () with buffer accumulators.</p> |
