Research

 Major research fields

• Accurate measurements of electrical quantities and design of measuring apparatus:
  • methods and systems for reconstructing the complex sinusoidal voltage ratio with the use of digital sinusoidal voltage sources,
  • measurement of the complex voltage ratio using digital methods,
  • methods of calibrating circuits for digital measurement and reconstruction of a complex voltage ratio,
  • analysis of the properties of digital signal processing algorithms in the measurements of the complex voltage ratio,
  • comparators of impedance standards using circuits for digital measurement and reconstruction of a complex voltage ratio,
  • digital methods and systems for generating polyharmonic signals with strictly defined parameters and methods of their calibration,
  • modeling errors of digital estimators of parameters and signal characteristics,
  • spectral analysis and measurements of the effective value of periodic signals sampled synchronously and non-synchronously,
  • application of the theory of linear systems with periodically variable parameters for the representation, simulation and identification of non-linear systems in a periodic steady state,
  • description and measurements of immittance with periodically changing parameters,
  • analysis and synthesis of algorithms to improve the stability of national time scales,
  • principles of designing intelligent converters of electrical and non-electrical quantities,
  • correction of nonlinear distortions introduced by the input systems of measuring instruments,
  • transducers for measuring electricity quality parameters,
  • construction of devices for measuring the parameters of the power grid and reproducing the power values,
  • application of impedance spectroscopy to study the electrical properties of dielectrics.
• Analysis and synthesis of processing structures and algorithms in measurement and control systems:
  • methodology of design and analysis of measurement and control systems (SPS),
  • communication (wired and wireless),
  • data visualization and processing,
  • methodology of designing distributed systems based on the Internet,
  • analytical and simulation models of distributed SPS with network architecture,
  • research on the impact of the structure of nodes and system structure on the properties of distributed SPS (data transmission delay and data loss),
  • design and research of wireless sensor networks,
  • intelligent measurement and control systems.
• Analysis and synthesis of IT systems of the Smart Metering, Smart Grid, Smart City class:
  • neural models of renewable energy sources (RES),
  • methods and techniques of acquiring knowledge from measurement data for the needs of Smart Grid and Smart City,
  • Internet of Things technology in Smart Grid and Smart City,
  • data warehouses for monitoring, control and diagnosis systems of industrial facilities and processes,
  • analysis and synthesis of communication structures in Smart Grid,
  • energy management systems ensuring the implementation of selected functionalities in Smart Grid and Smart City systems,
  • security systems in Smart Grid and Smart City class applications.
• Modelowanie, analiza i synteza systemów cyfrowych:
  • zastosowanie języków opisu sprzętu HDL (ang. Hardware Description Languages) w syntezie systemów cyfrowych,
  • projektowanie reprogramowalnych sterowników logicznych bazujące na wybranych modelach formalnych,
  • wykorzystanie technik informatycznych w projektowaniu sterowników logicznych,
  • analiza formalna układów sterowania z wykorzystaniem sieci Petriego, diagramów statechart, diagramów decyzyjnych, skończonych automatów stanów (FSM) i układów mikroprogramowalnych,
  • metody implementacji systemów cyfrowych w strukturach programowalnych typu CPLD (ang. Complex Programmable Logic Device) oraz FPGA (ang. Field Programmable Gate Array),
  • zintegrowane projektowanie sprzętu i oprogramowania (ang. Hardware / Software Codesign),
  • projektowanie systemów wbudowanych.
• Designing information systems:
  • modeling of information systems,
  • software development methodology,
  • IT solutions supporting the functioning of a computerized city,
  • designing multi-layer distributed systems,
  • modeling of database systems,
  • exploration of knowledge base systems,
  • synchronization of messages in agent systems,
  • use of modern decorrelation techniques (cosine transform, wavelet transform) in the processing, compression and protection of digital video data,
  • masking interference in digital video data transmission.