Next generation tools for modelling and analysis of evolving power and energy systems

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Electrical energy systems are fast evolving with rapidly increasing complexity, wider acceptance of DC-based technologies, and integration with communication systems and sensors. Sophisticated computer models are essential for operation of electric grids, planning purposes, design and integration of future renewable energy sources and systems. Thousands of engineers in control centers and research facilities around the world are working full-time developing models and conducting studies. Since the models are used by engineers and researchers many times (often iteratively during the design cycle), both the model accuracy and numerical efficiency (simulation time) are very important. Even a fractional increase in simulation speed will result in very significant savings of the engineering time worldwide. However, models of rotating machines and power electronic components are typically the limiting bottle-neck, and the present modeling tools are falling behind of the needs.***Canada has been a leader in developing the state-of-the-art solution approaches and computerized tools that enable design and operation of electric power systems of various scales. The electromagnetic transient programs (EMTP) e.g. ATP, Microtran, EMTP-RV, PSCAD, RTDS, RT-LAB, the Matlab's SimPowerSystems, and Powertech Labs transient stability tools DSATools, etc., all have been originated and/or developed by Canadian researches and are now overwhelmingly used throughout the world as industry-standard tools. The proposed research continues UBC's long-time tradition in advancing the power systems analysis tools. We are developing the most computationally efficient synchronous and induction machines models that achieve constant-parameter interfacing circuits (and constant conductance submatrices) and avoid the limitations and numerical instability of the traditional qd0-models. We are developing a revolutionary parametric approach for automatically constructing the dynamic average-value models of switching converters and machine-converter systems (with capability of including significant harmonics). The new/advanced models are best suited for future simulation environments that will allow intermixing EMTP-type, state-variable-based, and dynamic/static phasors solution approaches. The proposed research will enable the next generation of transient simulation tools with new capabilities and extended range of applications, capable of much faster simulations of large-scale systems and yet preserving high-level of detail and accuracy at the localized sub-systems as required. These tools will have a tremendous impact on how simulations are used by engineers and researchers in the near future. The results of this research are essential in enabling the new paradigms of AC/DC microgrids, alternative energy sources and storage, which together define the evolving future smart grid.