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Demand Driven Energy Management for PIPO Auxiliary Power Supply Architecture

by Yalda Azadeh, Mustafeez Ul-hassan, Abdul Mirza, Radha Sree Krishna Moorthy, Madhu Sudhan Chinthavali
Publication Type
Conference Paper
Book Title
Proceeding 2022 IEEE Energy Conversion Congress and Exposition (ECCE)
Publication Date
Page Numbers
1 to 6
Publisher Location
New Jersey, United States of America
Conference Name
2022 IEEE Energy Conversion Congress and Exposition (ECCE)
Conference Location
Detroit, Michigan, United States of America
Conference Sponsor
Conference Date

In this paper, a demand driven energy management (DDEM) technique is implemented on modular parallel input parallel output DC/DC auxiliary power supply (APS) structure. In this method, modules are brought in/out of the operation making them operate under high loading conditions, avoiding low efficiency under light load. Such a method finds its application in power conservative systems with variable load. Implementation of DDEM and the energy saved is shown using APS comprised of two 15W commercially off-the-shelf DC-DC modules, with 100–1000 VDC input and 24 V output voltage. Along with the DDEM, the lifetime of the power stage devices is controlled minimizing their junction temperature swing through control of cooling system. This control method uses digital twin as interface to virtualize the power devices loading operation/ health condition. Accordingly, no extra sensor or closed loop control required to measure the junction temperature of the devices or feedback the losses to the cooling flow.