THREE-PHASE SINE-VOLTAGE REGULATOR WITH HIGH- FREQUENCY SECTION

electrical engineering. SUBSTANCE: regulator designed for connection at low-voltage end of substation main transformer has two frequency changers 1 and 2 with high-frequency step- down transformer in-between. Frequency changer 1 functions to raise frequency in proportion to line frequency and has DC...

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Bibliographische Detailangaben
Hauptverfasser:	KLIMASH V.S, SHIBEKO R.V
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONTROLLING CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION PHYSICS REGULATING SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
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Beschreibung
Zusammenfassung:	electrical engineering. SUBSTANCE: regulator designed for connection at low-voltage end of substation main transformer has two frequency changers 1 and 2 with high-frequency step- down transformer in-between. Frequency changer 1 functions to raise frequency in proportion to line frequency and has DC voltage section built around controllable reversible rectifier and voltage inverter. Frequency changer 2 is used to reduce frequency to line frequency; it is, essentially, naturally commutated six/three-phase neutral cycloconverter. Device provides for pulse-width regulation of auxiliary voltage in three subranges by means of neutral cycloconverter and amplitude control in each subrange with aid of reversible rectifier. On-load voltage regulation is effected by means of reversible rectifier responding to supply voltage deviation and by neutral cycloconverter responding to load voltage deviation. EFFECT: improved output-voltage characteristics. 1 dwg