| 摘要 |
<p>A safety protected power source system is disclosed in the invention, which mainly includes a DC power source, a circuit interrupter, a switch element, a step-up transformer, a single-phase rectification module, a frequency converter, a controlling power source, a CPU board, an IGBT driving board, and a feedback module. A high-frequency alternating power source formed through four switch elements from the DC power source via the circuit interrupter is provided to the step-up transformer mainly for the power source system, within which the voltage being stepped-up, a DC power source that is generated through single-phase rectification being provided to the frequency converter, and then control motors' operation according to the characteristics of the frequency converter. The power source system has the advantages of strongly adaptability, easy maintenance, having no sparks and high reliability. It could be utilized in a wide range in various kinds of places where there are no AC power sources or in places where the AC power sources are in a power failure state even if there are AC power sources and it is not allowed for the motors to stop on the spot.</p> |
