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A New Evaluation Circuit with a Low-Voltage Inverter Intended for Capacitors Used in a High-power Three-phase Inverter
Get PDF016 IEEE Applied Power Electronics Conference and Exposition (APEC 2016), March 20-24, 2016, Long Beach, California, USADC-link capacitors in power electronic converters are a major constraint on improvement of power density as well as reliability. Evaluation of the dc-link capacitors in terms of power loss, ageing, and failure rate will play an important role in design stages of the next-generation power converters. This paper proposes a new evaluation circuit for dc-link capacitors used in a high-power three-phase inverter, which is intended for testing power loss, failure rate, ageing, and so on. The evaluation circuit produces a practical ripple current waveform and a dc bias voltage into a capacitor under test, in which the ripple current is equivalent to that generated by the three-phase inverter on the dc link. The evaluation circuit employs a full-scale current-rating and downscaled voltage-rating inverter for producing the ripple current, so that the power rating of the evaluation circuit is much smaller than that of a full-scale current rating and full-scale voltage rating inverter
Mutually Dependent Decision Processes Models
Get PDFWe introduce a new framework for dynamic programming called mutually dependent decision processes (MDDPs). Each MDDPs model is constructed from two or more finite-stage deterministic decision processes. At each stage, the reward in one process depends on the optimal values of the other processes, whose initial state is determined by the current state and decision of the original process. We formulate the MDDPs models and derive their mutually dependent recursive equations by dynamic programming
生体材料の生体活性向上に向けた自己組織化膜の応用
No full text九州工業大学博士学位論文 学位記番号:生工博甲第256号 学位授与年月日:平成28年3月25日GENERAL INTRODUCTION||2:THE STUDY OF 10-CARBOXYDECYLPHOSPHONIC ACID (10-CDPA) SELF-ASSEMBLED MONOLAYERS (SAMS) IN INDUCING APATITE FORMATION ON COBALT-CHROMIUM (Co-Cr) ALLOY||3:THE STUDY OF 11-AMINOUNDECYLPHOSPHONIC ACID (11-AUPA) SELF‐ASSEMBLED MONOLAYERS (SAMS) AND POLY-γ-GLUTAMIC ACID (PGA) IN INDUCING APATITE FORMATION ON COBALT-CHROMIUM (Co-Cr) ALLOY||4:THE INFLUENCE OF NaOH PRETREATMENT ON INDUCING APATITE FORMATION ON 11-AUPA-MODIFIED COBALT-CHROMIUM (Co-Cr) ALLOYS IN THE SIMULATED BODY FLUID||5:THE STUDY OF 11-AUPA SELF-ASSEMBLED MONOLAYERS (SAMS) IN INDUCING APATITE FORMATION ON ALUMINA CERAMIC||6:GENERAL CONCLUSIO
Internal Temperature Distribution Imaging by Real-Time Simulation
Get PDF電力技術／電力系統技術／半導体電力変換技術合同研究会, 3月8日-9日, 2016年,
九州工業大学 戸畑キャンパス, 福岡県 Internal temperature imaging system based on a real-time simulation concept is proposed. This system was constructed by combination of a LabVIEW monitoring system and a thermal simulator written with MATLAB. Internal temperature distribution was simulated simultaneously from monitored surface temperature. This system achieves non-destructive analysis of power devices in operation
