2016/04/12 by Mayank Baranwal, Baranwal, Mayank, Srinivasa M. Salapaka +3
Engineering · #Advanced DC-DC Converters #FOS: Electrical engineering #FOS: Mathematics #Frequency Control in Power Systems #Microgrid Control and Optimization #Optimization and Control (math.OC) #Systems and Control (eess.SY) #electronic engineering #information engineering
paper · pdf · doi:10.48550/arxiv.1604.03573
openalex publication_date 2016/04/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
This paper addresses the problem of output voltage regulation for multiple\nDC-DC converters connected to a grid, and prescribes a robust scheme for\nsharing power among different sources. Also it develops a method for sharing\n120 Hz ripple among DC power sources in a prescribed proportion, which\naccommodates the different capabilities of DC power sources to sustain the\nripple. We present a decentralized control architecture, where a nested\n(inner-outer) control design is used at every converter. An interesting aspect\nof the proposed design is that the analysis and design of the entire\nmulti-converter system can be done using an equivalent single converter system,\nwhere the multi-converter system inherits the performance and robustness\nachieved by a design for the single-converter system. Another key aspect of\nthis work is that the voltage regulation problem is addressed as a\ndisturbance-rejection problem, where em unknown load current is viewed as an\nexternal signal, and thus, no prior information is required on the nominal\nloading conditions. The control design is obtained using robust optimal-control\nframework. Case studies presented show the enhanced performance of prescribed\noptimal controllers.\n