| 摘要 |
<p>A control method for a constant-frequency inverter for supplying isolated loads and/or for exchanging power between a DC power source and the power distribution network, the inverter being connected to said DC power source and having an output transformer and switching means for generating a voltage in output from the inverter, characterised in that it comprises the following steps: a) acquiring signals which represent the operating state of the inverter b) determining a first control variable, aimed to address first and second memory means, by virtue of the execution of the following steps: -- generating a first control signal which is dependent on the operating state of the inverter; -- generating a second control signal which is dependent on the operating state of the inverter; c) determining a second control variable, aimed to address said first memory means by virtue of the execution of the following steps: -- generating a third control signal which is dependent on the operating state of the inverter; -- generating a fourth control signal which is dependent on the operating state of the inverter; d) determining a third control variable based on the first and second control variables; e) determining a fourth control variable based on the first and third control variables; f) determining, based on said third control variable, the value of the angle of the fundamental sinusoidal characteristic curve of the voltage downstream of the switching means comprised in the inverter; g) determining a duty-cycle value for controlling the switching means on the basis of the fourth control variable and of the value of the angle of the fundamental sinusoidal curve. <IMAGE></p> |
