成果報告書詳細
管理番号20160000000782
タイトル*平成27年度中間年報 SIP(戦略的イノベーション創造プログラム)/次世代パワーエレクトロニクス 将来のパワーエレクトロニクスを支える基盤研究開発 SiCパワーデバイス応用による低容量小型パワー集積回路およびパワープロセッシング技術の研究開発
公開日2016/9/15
報告書年度2015 - 2015
委託先名国立大学法人京都大学 学校法人東京電機大学 学校法人千葉工業大学
プロジェクト番号P14029
部署名IoT推進部
和文要約
英文要約FY 2015 annual report (project term: FY 2014~2016)

Development topic Cross-ministerial Strategic Innovation Promotion Program (SIP) / Next-generation power electronics / Research and development of integrated power circuits and power processing technology based on SiC power device application

(1) Development of high frequency isolated gated driver:
Isolated and resonant SiC device drivers was proposed at 7MHz. Applying the class-E switching technique, high efficiency was achieved for power conversion. In the driver the parasitic capacitance is critical to enhance the switching frequency.

(2) Development of SiC gate driver with GaN device:
The high-speed gate-driver of SiC MOSFET was proposed with GaN HEMT at 13.56 MHz. The gate-driver could decrease the power loss 50% lower than the Si-based circuit.. The soft switching of SiC MOSFET was also examined based on (1).

(3) Estimation of high frequency characteristics of passive devices:
A transformer for flyback converters with high-frequency operation has been designed. The frequency characteristics of the transformer with toroidal-winding and Liqualloy (TM) material has been evaluated. A multilayer ceramic capacitor of surface mounts type has been selected as a candidate for the high-frequency application.

(4) Development of CMOS and integration of power circuit/ (5) Design of Power integrated circuit:
A compact model of SiC power MOSFETs is proposed based on the surface potential. I-V and C-V characteristics were well estimated at steady state and transient. The accuracy of I-V characteristics was confirmed up to 1-kW with a developed high power curve tracer. A new body diode model for the SiC MOSFETs was also proposed considering gate-voltage dependence. The model was applied to analyze converters for the integration of power circuit.

(6) Development of digital link cell power convertors:
The power router and power mixer were experimentally examined with FPGA based hardware controller. A protocol for power packet was formulated using VHDL. Limitation of a speed of packet communication was evaluated, and the improvement of the interface circuit was investigated for higher speed of packet communication.

(7) Downsizing of small capacity converter circuits:
A downsizing of a flyback converter has been examined by means of very high (1 MHz) switching frequency of 50 W. The transient behavior was experimentally estimated both in current continuous and discontinuous operation.

(8) Applications of quantized control to robot drive:
In order to apply power packet to robot, a quantized control on a single power line was experimentally examined and the EMC characteristics were confirmed. The power packet was also applied to servo motor and a 2-link manipulator. Based on the results (7) and (8), new mixer and router circuits with GaN HEMT were designed.

(9) Optimization and unification of information and power network:
The architecture and protocol were investigated for the power networks. Several routing protocols were design based on various conventional protocols applied to large-scale information networks. The feasibility of the protocol was confirmed in a simulator.

(10) Modeling of energy network of bio-system for robot control:
A structure of networks was proposed for the total system along biological systems.. The model of metabolic system, bursting dynamics of a pancreatic beta cell related to control the amount of insulin secretion, was applied to distribute power packets in the network.
ダウンロード成果報告書データベース(ユーザ登録必須)から、ダウンロードしてください。

▲トップに戻る