Research summary
Research addresses power-electronic converters, grid-connection controls, and reliability for distributed renewable energy and microgrid systems. An overview of distributed power generation systems based on renewables surveyed control and grid-synchronization strategies needed to meet stricter power-quality, safe-operation, and islanding-protection standards as DPGS penetration grows [1]. A review of single-phase grid-connected inverters for PV modules classified topologies by number of power-processing stages, type of power decoupling, transformer use, and grid-side stage, and identified best candidates for single- and multi-module applications based on lifetime, ratings, and cost [2]. Control of AC microgrids was reviewed in the context of distributed generators connected through power-electronic interfaces alongside storage, communications, and controllable loads, mapping the architectures that enable both grid-tied and islanded operation [3]. A step-by-step procedure was developed for the LCL filter of a three-phase active rectifier, with experimental validation of stability and current-harmonic performance [4]. Proportional-resonant controllers and filters were presented as a way to remove the steady-state errors of PI controllers in single-phase grid-connected converters and to avoid synchronous d-q transformation in three-phase systems, with the same theory enabling harmonic-reference generation for active power filters [6]. A review of power electronics for wind turbines summarized generator-converter combinations, wind-farm electrical topologies, and grid-code compliance methods [7]. A comprehensive review of step-up DC-DC converters classified voltage-boosting techniques (switched capacitor, voltage multiplier, switched inductor, magnetic coupling, multistage/multilevel) and their application trade-offs across the milliwatt-to-megawatt range [5]. Reliability of DC-link capacitors was examined through both reliability-oriented design and condition monitoring, drawing on failure mechanisms and physics-of-failure lifetime models [8]. A systematic treatment of harmonic stability in power-electronic-based power systems framed harmonic stability as a small-signal stability problem manifesting as resonances and abnormal harmonics across a wide frequency band [9].
Recent publications
- Overview of Control and Grid Synchronization for Distributed Power Generation SystemsDOI
- A Review of Single-Phase Grid-Connected Inverters for Photovoltaic ModulesDOI
- Control of Power Converters in AC MicrogridsDOI
- Renewable energy resources: Current status, future prospects and their enabling technologyDOI
- Design and Control of an LCL-Filter-Based Three-Phase Active RectifierDOI
- Step-Up DC鈥揇C Converters: A Comprehensive Review of Voltage-Boosting Techniques, Topologies, and ApplicationsDOI
- Proportional-resonant controllers and filters for grid-connected voltage-source convertersDOI
- A Review of the State of the Art of Power Electronics for Wind TurbinesDOI
- Reliability of Capacitors for DC-Link Applications in Power Electronic Converters鈥擜n OverviewDOI
- Harmonic Stability in Power Electronic-Based Power Systems: Concept, Modeling, and AnalysisDOI
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How to apply
Email Frede Blaabjerg 6-12 months before your application deadline. Read several recent papers and reference specific work in your message. Use our how to email a Japanese professor guide for the proven email structure.
For applications via MEXT scholarship: see our MEXT 2027 complete guide and university-specific University Recommendation track.
External profiles
- ORCID: https://orcid.org/0000-0001-8311-7412
- OpenAlex: openalex.org
Profile compiled from public sources (Researchmap, OpenAlex, Chiba University faculty directory). Last refreshed 2026-05. Report incorrect information.