Development And Performance Of Pulse Width Modulated Static Inverter And Converter Modules
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Monthly Catalog of United States Government Publications, Cumulative Index
Author | : United States. Superintendent of Documents |
Publisher | : |
Total Pages | : 1408 |
Release | : 1976 |
Genre | : United States |
ISBN | : |
Scientific and Technical Aerospace Reports
Author | : |
Publisher | : |
Total Pages | : 1008 |
Release | : 1978 |
Genre | : Aeronautics |
ISBN | : |
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Control and Protection System for Paralleled Modular Static Inverter-converter Systems
Author | : Arthur G. Birchenough |
Publisher | : |
Total Pages | : 52 |
Release | : 1973 |
Genre | : Electric current converters |
ISBN | : |
A control and protection system was developed for use with a paralleled 2.5-kWe-per-module static inverter-converter system. The control and protection system senses internal and external fault parameters such as voltage, frequency, current, and paralleling current unbalance. A logic system controls contactors to isolate defective power conditioners or loads. The system sequences contactor operation to automatically control parallel operation, startup, and fault isolation. Transient overload protection and fault checking sequences are included. The operation and performance of a control and protection system, with detailed circuit descriptions, are presented.
Analysis and Performance of Paralleling Circuits of Paralleling Circuits for Modular Inverter-converter Systems
Author | : Arthur G. Birchenough |
Publisher | : |
Total Pages | : 28 |
Release | : 1972 |
Genre | : Electric circuits, Parallel |
ISBN | : |
As part of a modular inverter-converter development program, control techniques were developed to provide load sharing among paralleled inverters or converters. An analysis of the requirements of paralleling circuits and a discussion of the circuits developed and their performance are included in this report. The current sharing was within 5.6 percent of rated-load current for the ac modules and 7.4 percent for the dc modules for an initial output voltage unbalance of 5 volts.
A Selected Listing of NASA Scientific and Technical Reports for ...
Author | : United States. National Aeronautics and Space Administration. Scientific and Technical Information Division |
Publisher | : |
Total Pages | : 2088 |
Release | : 1966 |
Genre | : Aeronautics |
ISBN | : |
NASA Scientific and Technical Reports
Author | : United States. National Aeronautics and Space Administration Scientific and Technical Information Division |
Publisher | : |
Total Pages | : 2300 |
Release | : 1967 |
Genre | : Aeronautics |
ISBN | : |