Speed regulating system of a slip power feedback type asynchronous motor with large power and medium-high voltage

The utility model discloses a speed regulating system of a slip power feedback type asynchronous motor with large power and medium-high voltage, comprising a power electronic converter and a step-up transformer, wherein the power electronic converter is connected with the speed-adjusted motor rotor...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZHANG YING, ZENG XIANGJUN, ZHANG YUTUAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GENERATION REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION SYSTEMS FOR STORING ELECTRIC ENERGY TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	The utility model discloses a speed regulating system of a slip power feedback type asynchronous motor with large power and medium-high voltage, comprising a power electronic converter and a step-up transformer, wherein the power electronic converter is connected with the speed-adjusted motor rotor side in series; the step-up transformer is used for adjusting the three-phase alternating current outputted by the power electronic converter and feeding the three-phase alternating current back to a high-voltage power supply network; the power electronic converter comprises a three-phase rectifying circuit, a boost chopping circuit, a three-phase voltage source inverter, a boost chopping control unit and an inverter control unit; the boost chopping circuit is connected with the three-phase rectifying circuit in parallel; the three-phase voltage source inverter is connected with the boost chopping circuit in parallel; the boost chopping control circuit is used for controlling the boost chopping circuit; and the inv