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Security assessment of large-scale, strongly nonlinear power grids containing thousands to millions of interacting components is a computationally expensive task. Targeting at reducing the computational cost, this paper introduces a framework for constructing a robust assessment toolbox that can provide mathematically rigorous certificates for the grids’ stability in the presence of variations in...
Based on experimental simulation and numerical analysis, the effect of operation condition and load characteristic on unitpsilas stability is further investigated in detail. An experimental system of single-unit and single-pipe hydropower station is designed and built including a simulated water pumping system (dynamic load) and a resistance (static load). Stability experiment research and further...
This paper investigates Chinese standards for power system security and the practices in the relevant strategy. Considering the cascading features of typical system-wide blackouts around the world, further emphasis is given to integration of various wide area measurements, trajectory-based knowledge extracting, on-line quantitative security analysis, and adaptive optimization of preventive control,...
In this paper, key techniques, limits and feasible applications of wide area measurement system (WAMS) and wide area control system (WACS) are investigated and the framework for Wide area Monitoring Analysis Protection-control (WARMAP) is introduced to break those limitations. Based on engineering experiences in China, application functions depending merely on phasor measurement unit (PMU) data are...
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