Current sensorless control of bidirectional converters under mixed conduction mode

Jun Lin, George Weiss

פרסום מחקרי: פרק בספר / בדוח / בכנספרסום בספר כנסביקורת עמיתים

תקציר

This paper investigates the current sensorless control of bidirectional converters operating both in continuous (CCM) and discontinuous conduction mode (DCM). Often the current control loop is the inner part of a nested control system. For a specific application of such a nested structure, we design two extended state observers (ESO) for the voltage and current control loops, respectively. Our specific application is a power filter (ripple eliminator) connected to a DC bus. For the outer voltage loop, the ESO is to estimate the DC bus disturbance; whereas for the inner current loop, the inductor current and aggregate disturbance caused by plant uncertainty are estimated by another ESO. The controllers are designed based on the active disturbance rejection control (ADRC) principle. Since no current sensors are necessary, the cost and size of the converter can be reduced without sacrificing performance. To improve the efficiency, the converter works under DCM near zero-current crossings. Some modifications to the observer are proposed to guarantee seamless transitions between the two modes. The proposed algorithm is verified by simulation of a 1kW bidirectional converter.

שפה מקוריתאנגלית
כותר פרסום המארח2019 IEEE 58th Conference on Decision and Control, CDC 2019
מוציא לאורInstitute of Electrical and Electronics Engineers Inc.
עמודים8118-8123
מספר עמודים6
מסת"ב (אלקטרוני)9781728113982
מזהי עצם דיגיטלי (DOIs)
סטטוס פרסוםפורסם - דצמ׳ 2019
אירוע58th IEEE Conference on Decision and Control, CDC 2019 - Nice, צרפת
משך הזמן: 11 דצמ׳ 201913 דצמ׳ 2019

סדרות פרסומים

שםProceedings of the IEEE Conference on Decision and Control
כרך2019-December

כנס

כנס58th IEEE Conference on Decision and Control, CDC 2019
מדינה/אזורצרפת
עירNice
תקופה11/12/1913/12/19

ASJC Scopus subject areas

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  • ???subjectarea.asjc.2600.2611???
  • ???subjectarea.asjc.2600.2606???

טביעת אצבע

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