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DC-Link Capacitor Sizing in HEV/EV e-Drive Power Electronic System from Stability Viewpoint
Technical Paper
2020-01-0468
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Selection of the DC-link capacitance value in an HEV/EV e-Drive power electronic system depends on numerous factors including required voltage/current ratings of the capacitor, power dissipation, thermal limitation, energy storage capacity and impact on system stability. A challenge arises from the capacitance value selection based on DC-link stability due to the influence of multiple hardware parameters, control parameters, operating conditions and cross-coupling effects among them. This paper discusses an impedance-based methodology to determine the minimum required DC-link capacitance value that can enable stable operation of the system in this multi-dimensional variable space. A broad landscape of the minimum capacitance values is also presented to provide insights on the sensitivity of system stability to operating conditions. The target example considered is an HEV e-Drive power electronic system consisting of one bidirectional dc/dc converter and two three-phase electric machine drive inverters, sharing a common dc-link. Since PWM power converters are nonlinear, the system stability is analyzed using operating point dependent, small-signal models. A set of assumptions is made to simplify the modeling and analysis procedure. Representative results from ongoing hardware experimental studies are also provided to show a reasonable correlation between results obtained from the model and the hardware experimental observations.
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Sridharan, S. and Kikuchi, J., "DC-Link Capacitor Sizing in HEV/EV e-Drive Power Electronic System from Stability Viewpoint," SAE Technical Paper 2020-01-0468, 2020, https://doi.org/10.4271/2020-01-0468.Data Sets - Support Documents
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References
- http://www.nhtsa.gov/fuel-economy
- Kikuchi , J. Challenging Questions for Power Electronics Engineers/Researchers in Vehicle Electrification IEEE APEC 2015, Industry Session, Transportation Power Electronics: Vehicles, Chargers, Components and Markets
- Sridharan , S. , Kimmel , J. , and Kikuchi , J. DC-Link Capacitor Sizing Considerations for HEV/EV e-Drive Systems SAE Technical Paper 2017-01-1234 2017 https://doi.org/10.4271/2017-01-1234
- Middlebrook , R.D. Design Techniques for Preventing Input-Filter Oscillations in Switched-Mode Regulators Advances in Switched-Mode Power Conversion I & II 1983 153 168
- Feng , X. , Liu , J. , and Lee , F.C. Impedance Specifications for Stable DC Distributed Power Systems IEEE Transactions on Power Electronics 27 2 157 162 Mar. 2002
- Kikuchi , J. Stability Modeling of HEV/EV Electric Drives as a Small-Scale Distributed Power System IEEE APEC 2015 2664 2671
- Riccobono , A. and Santi , E. Comprehensive Review of Stability Criteria for DC Power Distribution Systems IEEE Transactions on Industry Applications 50 5 3525 3535 Sept.-Oct. 2014
- Emadi , A. and Ehsani , A. Dynamics and Control of Multi-Converter dc Power Electronic Systems 32nd IEEE PESC 2001 1 248 253
- Ogata , K. Modern Control Engineering Upper Saddle River, NJ Prentice Hall 1997
- Kikuchi , J. , Wolf , C. , and Degner , M. Comparison of Latch-Based and Switch-Based, Sampled-Data, Three-Phase, PWM, Voltage-Source Inverter Models for Dynamic Analysis 2012 IEEE Energy Conversion Congress and Exposition (ECCE) Raleigh, NC 2012 4619 4626
- Krause , P.C. , Wasynczuk , O. , and Sudhoff , S.D. Analysis of Elecric Machinery Wiley-IEEE Press 1995
- Ogata , K. Discrete-Time Control Systems Upper Saddle River, NJ Prentice Hall 1995