Title :
Modeling and Controller Design of a Semiisolated Multiinput Converter for a Hybrid PV/Wind Power Charger System
Author :
Cheng-Wei Chen ; Chien-Yao Liao ; Kun-Hung Chen ; Yaow-Ming Chen
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
The objective of this paper is to propose the development of a multiinput dc-dc converter (MIC) family, which is composed of isolated and/or nonisolated dc-dc converters. By analyzing five basic isolated dc-dc converters, four isolated pulsating voltage source cells and three isolated pulsating current source cells are generated. Moreover, a semiisolated multiinput converter (S-MIC) for hybrid PV/wind power charger system which can simplify the power system, reduce the cost, deliver continuous power, and overcome high-voltage-transfer-ratio problems is proposed. In this paper, the operational principle of the proposed S-MIC is explained, the small-signal ac model is derived, and the controller design is developed. Computer simulations and experimental results are presented to verify the accuracy of the proposed small-signal ac model and the performance of the proposed S-MIC.
Keywords :
DC-DC power convertors; control system synthesis; hybrid power systems; photovoltaic power systems; power generation control; wind power plants; S-MIC; ac model; controller design; cost reduction; hybrid PV-wind power charger system; isolated dc-dc converters; isolated pulsating voltage source cells; modeling design; multiinput dc-dc converter; power system; semiisolated multiinput converter; Circuit topology; DC-DC power converters; IP networks; Inductors; Integrated circuit modeling; Microwave integrated circuits; Rectifiers; Hybrid power integration; Maximum power point tracking (MPPT); hybrid power integration.; maximum power point tracking (MPPT); modeling; modelling; multi- input converter (MIC); multiinput converter (MIC); renewable energy systems;
Journal_Title :
Power Electronics, IEEE Transactions on
DOI :
10.1109/TPEL.2014.2367594
