Type of Award: SBIR Phase III, CPFF (In response to BAA) Lead-In Phase II: N61533-89-C-0062 Contract Number: F33615-93-C-2361 Subcontractors: Purdue and Northrop Agency: U.S. Air Force Research Laboratory Status: Completed Period: 9/30/93 to 2/19/01 Principal Investigator: Paul Krause Brief Description and Purpose: PCKA and the Aircraft Division of Northrop Corporation teamed to develop and validate component simulations applicable to the More Electric Aircraft (MEA) concept. The overall goal was to provide the Air Force and the aircraft industry with computer simulation support and in-house simulation capability so that MEA power systems would be investigated before, during, and after construction. To achieve this goal, it is proposed to develop detailed hybrid and detailed digital as well as reduced-order computer models of the main components of the MADMEL system. The component simulations were modular and generic in nature so that the models could be used to simulate these components with different ratings and in different system arrangements. Final Report: MEA Electrical System Modeling, Simulation, and Performance Analysis This report is 230 pages in length wherein detailed and reduced order models of the MADMEL components are developed. The components include (1) synchronous machine, (2) switched reluctance generator, (3) PWM inverter fed induction motor, (4) electro-hydrostatic actuator, and (5) MADMEL electrical load simulator. Reports in Paper Form: Modeling and Simulation of UAV Power System Analysis of Switched Capacitance Machinery for Aerospace...
Read MorePerformance Analysis of Total Machine System and Electrical Power System Concepts and Associated Technologies
Type of Award: SBIR Phase III, Level of Effort (LOE)/Delivery Order (DO) Contract Number: N61533-94-D-0028 Lead-In Phase II: N61533-898-C-0062 Awards: DO 001: DO 002: DO 003: DO 004: Subcontractors: Purdue, UMR, and UWM Agencies: U.S. Naval Surface Warfare Center Status: Completed. Period: 6/30/94 to 6/30/99 Principal Investigator: Paul Krause Brief Description and Purpose: It became clear that computer simulation would play a major role in the Navy’s Advanced Surface Machinery and the Advanced Electrical Power System programs at CDNSWC. In particular, accurate computer simulations could be used advantageously in all stages of component and system design and development. Simulation is a necessity if concurrent design and development (concurrent engineering) is to succeed. Since 1987, P C. Krause and Associates (PCKA) had been involved in the development of computer models for the Navy (NSWC). The need for simulation in the Navy’s engineering approach to advanced machinery and electrical systems coupled with the fact that PCKA had been instrumental in developing the present simulation capability of NSWC provided the basis for this contract. PCKA provided the Navy with engineering services in the area of detailed and reduced-order modeling and analysis of components/systems which were being contemplated and/or developed in the advanced machinery and electrical systems programs. Since PCKA had not been involved with manufacturers other than through or with the Government agency. This enables PCKA to provide an independent evaluation since the personnel associated with PCKA had not received corporate grants or contracts from manufacturers which could be construed as a conflict of interest. Here, again, PCKA was successfully casted in the role of an honest broker. DO 001 Reports: “Modeling of EATON Advanced Modular Power (AMP) Converters”, 11/15/94, 4/11/95, 4/24/95, 1/18/96, and 3/7/96 “Induction Motor Drive Simulation”, 8/2/95 DO 002 Reports: “Modeling of (GE’s) Six and Twelve Phase Generator/Rectifier Systems”, 1/18/96 “Modeling of the Westinghouse 6-Phase Generator/Rectifier”, 3/7/96 DO 003 Reports: “Short-Circuit Response of Westinghouse  6-Phase Generator/Rectifier System”, 7/14/97 “Modeling Update of Westinghouse 6-Phase Generator/Rectifier System”, 7/20/97, 11/8/99, 11/10/99 “Modeling of the Bettis Compatibility Test Facility with Updated Models of the PSG and Eaton Inverters and Converters”, 7/6/98 “Westinghouse Six-Phase Generator/Rectifier System DC Impedance Measurements Report”, 7/27/98 “Final Update of PSG Inverter and EATON Converter and Inverter Models”, 9/26/99 DO 004 Reports: “Emergency Diesel Generator Faulted Diode Report”, 1/11/99 “Multi-Level Power Conversion; Modeling and Analysis”, 12/29/99 “Modeling of the Westinghouse Excitation/Generation Systems”, 1/4/00 “Dynamic Average-Value Modeling of a Four-Level Drive System”, IEEE-IAS Paper,...
Read MoreDynamic Simulation of High-Power Machinery Systems
Type of Award: SBIR Phase III, IDIQ, CPFF, Level of Effort (LOE)/Delivery Order (DO) Contract Number: N00167-99-D-0100 Lead-In Phase II: N00024-97-4097 Awards: DO 001: DO 002: DO 003: Subcontractors: Purdue and UMR: Agencies: U.S. Naval Surface Warfare Center and U.S. Naval Sea Command Status: Completed. Period: 9/30/99 to 9/11/01 Principal Investigator: Paul Krause Brief Description and Purpose: In the mid to late 1990’s, PC Krause and Associates (PCKA), Purdue University, the University of Missouri-Rolla (UMR), and the University of Wisconsin-Milwaukee (UWM) had been extensively involved, as a group, in research, analysis, simulation, and design of power-electronic based systems for government agencies (Navy, Air Force, NASA, and the Army) interested in the more-electric initiative program. This group, of which PCKA was the small business arm, evolved naturally from a need to combine expertise in order to conduct the required work which has involved a large spectrum of power/drive systems ranging from spacecraft to tactical vehicles. The commonalities that exist between these many systems in configuration and components became very apparent. This sole-source contract was the first effort by the Navy to encourage interagency interaction in sharing the results of the research and engineering projects common to shipboard power systems and to provide a convenient funding vehicle to encourage shared funding, among these agencies, for projects of mutual interest. Clearly, this is in keeping with the emphasis on interaction and consolidation of government-funded programs. This contract was one of the first steps toward the goal of establishing an inter-agency funded group made up of universities, government agencies (laboratories), and industry and focused on the research, analysis, design, and development of electric power systems. DO 001 Reports: “Modeling of the Westinghouse Excitation/Generation Systems”, 6/24/02 DO 002 Reports: “Monthly Status Reports”. DO 003 Reports: Naval Combat Survivability Reports (in paper form) “Component Modeling-Ship Service Converter Module”, 5/1/01 “Component Modeling-Power Supply”, 5/1/01 “Component Modeling-Ship Service Inverter Module”, 5/11/01 “Component Modeling-Motor Controller”, 5/11/01 “Component Modeling-Constant Power Load”, 5/12/01 “Generation and Propulsion Testbed Architecture”, 6/6/01 “DC ZEDS Testbed Architecture” 6/6/01 “Advanced Propulsion System Report”,...
Read MoreIntegrated Simulation/Design/Analysis Infrastructure for SiC-based High-Temperature Power Conversion
Type of Awards: SBIR Phase I with IEDC and Phase II Contract Numbers: FA8650-05-M-2599 and FA8650-06-C-2663 Agency: U.S. Air Force Research Laboratory Status: Completed Periods: 4/1/05 to 1/1/06 and 5/5/06 to 9/5/08 Principal Investigator: C. E. Lucas Abstract: In order to realize the full potential of Silicon Carbide and to facilitate its deployment in high-temperature power electronics applications, it is important to establish an integrated modeling, simulation, and analysis (MS&A) infrastructure to address the special considerations and numerous technical challenges that must be overcome and to support design at the device, subsystem, and system levels. The viability of such an infrastructure has been established in the on-going Phase I research. The overall objective of the proposed Phase II research is to further its development. In particular, the proposed Phase II effort entails: (1) the continued development of a distributed multi-level (device/subsystem/system) integrated (electrical/thermal) MS&A infrastructure to support SiC device development and their application to Air Force systems, (2) the investigation of how SiC device performance is affected by thermal and material properties and how defects influence thermal-electrical coupling, (3) the partitioning of the geometric physics-based device models for implementation in a distributed computer network, and (4) the investigation of the applicability of this powerful MS&A infrastructure to other areas of interest such as computational fluid dynamics, plasma physics, and...
Read MoreAnalysis and Simulation of a Six-Phase Generator/Rectifier System
W. L. Tucker, Naval Surface Warfare Center; P. C. Krause, O. Wasynczuk, S. D. Pekarek, E. A. Walters, PC Krause and Associates, Inc. Proceedings 31st Intersociety Energy ConverÂsion Engineering Conference, vol. 3, July 1996, pp. 1804-1808.
Read MoreSimulation of Auxiliary Resonant Commutated Pole (ARCP) Converter
E. A. Walters, O. Wasynczuk, PC Krause and Associates, Inc; H. J. Hegner, Naval Surface Warfare Center Proceedings 32nd Intersociety Energy Conversion Engineering ConÂference, vol. 1, July 1997, pp. 302-306.
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