DOUBLE STATIC SOURCE FOR DIESEL LOCOMOTIVES WITH TWO INVERTERS, FOR SUPPLYING 24VAC VOLTAGE
The invention relates to a double static source, with reduced gauge and mass, supplied from the direct current voltage in a diesel locomotive, used for supplying the 24VDC cosumers on the locomotive. According to the invention, the source consists of an active source for supplying the consumers, and...
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Zusammenfassung: | The invention relates to a double static source, with reduced gauge and mass, supplied from the direct current voltage in a diesel locomotive, used for supplying the 24VDC cosumers on the locomotive. According to the invention, the source consists of an active source for supplying the consumers, and a reserve warm ready to use one which starts to operate when the first is blocked or damaged, the input direct current voltage being measured by a voltage transducer (1) and at each of the two sources, the input direct current voltage being measured by a voltage transducer (1) and at each of the two sources, the input direct currents voltage being applied to each one of some LC-type network filters (2 and 3) and then to a monophase inverter with high intermediary frequency (4), comprising HEXFET or IGBT transistors, driven by a driver (5) controlled by a logical block (6) with microprocessor which controls the output voltage of the inverter (4), there being applied to a diode rectifying bridge (7), to one of some LCR output filters (8, 9 and 10), there being obtained a stabilized output direct current voltage, with small waves, the voltage being stabilized by measuring the input voltage to the source and the output voltage from output filters (8, 9 and 10) and by means of some component blocks of the logical block (6) with microprocessor.
Invenţia se referă la o sursă statică dublă,cu gabarit ?i masă reduse, alimentată de la tensiunea continuă de pe o locomotivă diesel, utilizată pentru alimentarea consumatorilor de 24 Vccde pe locomotivă. Sursa conform invenţiei este compusă dintr-o sursă activă, pentru alimentarea consumatorilor, ?i una de rezervă, caldă, care intră în funcţie când prima s-a blocat sau defectat, tensiunea de intrare fiind măsurată de un traductor de tensiune (1) ?i la fiecare dintrecele două surse, tensiunea continuă de intrare fiind aplicată câte unuia dintre ni?te filtre de reţea tip LC (2 ?i 3) ?i apoi unui invertor monofazat cu frecvenţă intermediară ridicată (4), realizat cu tranzistoare HEXFET sau IGBT, comandat de un driver (5), controlat de un bloc (6) logic cu microprocesor, care comandă tensiunea de ie?ire a invertorului (4), aplicându-se unei punţi redresoare cu diode (7), unuia dintre ni?te filtre LCR (8, 9 ?i 10) de ie?ire, obţinându-se la ie?ire o tensiune continuă stabilizată, cu ondulaţii mici, stabilizarea tensiunii realizându-se prin măsurarea tensiunii de intrare în sursă ?i, respectiv, de ie?ire din filtrele (8, 9 ?i 10) d |
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