Current sensorless control of bidirectional converters under mixed conduction mode

Jun Lin, George Weiss

نتاج البحث: فصل من :كتاب / تقرير / مؤتمرمنشور من مؤتمرمراجعة النظراء

ملخص

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.

اللغة الأصليةالإنجليزيّة
عنوان منشور المضيف2019 IEEE 58th Conference on Decision and Control, CDC 2019
ناشرInstitute of Electrical and Electronics Engineers Inc.
الصفحات8118-8123
عدد الصفحات6
رقم المعيار الدولي للكتب (الإلكتروني)9781728113982
المعرِّفات الرقمية للأشياء
حالة النشرنُشِر - ديسمبر 2019
الحدث58th IEEE Conference on Decision and Control, CDC 2019 - Nice, فرنسا
المدة: ١١ ديسمبر ٢٠١٩١٣ ديسمبر ٢٠١٩

سلسلة المنشورات

الاسمProceedings of the IEEE Conference on Decision and Control
مستوى الصوت2019-December

!!Conference

!!Conference58th IEEE Conference on Decision and Control, CDC 2019
الدولة/الإقليمفرنسا
المدينةNice
المدة١١/١٢/١٩١٣/١٢/١٩

All Science Journal Classification (ASJC) codes

  • !!Control and Systems Engineering
  • !!Modeling and Simulation
  • !!Control and Optimization

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