Chikaodinaka Nwankpa

Associate Professor

Key Words:

Operation and Control, Stability, Modelling, Power Electronics

Research description:

Development of optically activated power system switches.
Development of appropriate load models and power electronic applications for voltage stability analysis.
Development of an integrated symbolic-numerical software for the purposes of power system bifurcation studies.

Highlights of accomplishments include the following:
  • Observance of the zero voltage conducting state for a power electronic switch
  • Model for the reactive power response to voltage changes which incorporates capacitor switching and transformer load tapchangers.
  • Exhibition on a toolbox bifurcations of the type: saddle-node, Hopf and singularity-induced.

    Lab Facilities:

    The Interconnected Power System Laboratory (IPSL). The main feature of the IPSL is that it uses real-life generators, transformers, motors, loads, and relays interconnected through transmission lines to form a power system which operates at a frequency of 60 Hz and a voltage level of 220 V. The general configuration of the IPSL exhibits the interrelationship between its two main parts: the interconnected power system and the energy management system (EMS) emulator. The power system network portion can be reconfigured in a variety of ways to form 2, 3 or up to 5-bus systems. For more info please check our web page:

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