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Marija Zima    
   

 

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MARIJA ZIMA, ABB SWITZERLAND
GROUP LEADER ENERGY & SYSTEMS

CORPORATE RESEARCH

Dr. Zima-Bockarjova leads power and energy systems group at ABB Corporate research center in Switzerland.
She has over 10 years of professional experience with various aspects of power systems planning, operation and control. Her work focused on real-time operation of power systems, analysis and protection, wholesale electric energy market analysis and design, reliable integration of intermittent and distributed sources to the power grids.
She developed planning and operation algorithms for distribution networks with high penetration of the renewable energy resources, investigated participation schemes for the industrial demand response to the electricity markets, performed techno-economic analysis of the novel technologies (e.g. battery storage). She investigated new market designs for the systems with high renewable penetration and suggested improvements in scheduling of power generation in the presence of stochasticity. She contributed to development of the criticality assessment in asset management project. Customers and collaboration partners included utilities, network operators, and Swiss ministry of energy.

 

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Presentation abstract

ENGINEERING THE NANOGRID OF THE FUTURE

Societies are seeking for the sustainable solutions for the energy supply and have an increasing standard of living. Number of new technologies are entering our daily life and our homes. The presentation will start with the review of the global picture of the energy demand in the residential sector and its end use.

We will proceed by analyzing “DC natives” - an equipment that requires DC supply or initially produces DC, such as PV, EV, battery energy storage and some of the appliances. Technological developments in the household appliances driven by the customer comfort will be discussed. Is there an efficiency increase or design simplification achieved by the DC power supply? Besides, key statistical figures will outline the trends of PV and EV integration into homes and buildings.

The talk will evolve with the back-of-the envelope calculations and simplistic engineering that will produce the design of the nanogrid in the envisioned house. While looking at the aggregated daily load variation profile, we will discover the practicality for the battery energy storage in residential building. We will analyze power and energy demand by various loads and suggest feasible voltage level. Comparison of the losses in the existing and in the new generation-demand chain will be performed.

The following necessary transition steps will be listed and conclude the presentation.

 

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