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In order to facilitate exchanging and sharing data between the domestic and international main tools for power system electromechanical transient analysis, this paper analyzes and compares the common mathematical models for transient stability including synchronous generator, excitation system, turbine and governor, load and even DC transmission system in PSD-BPA and PSS/E. Several typical problems...
In order to enrich the acquisition means for the coherence index in the dynamic characteristics of inter-area oscillation(IAO), this paper proposed an integrated algorithm for tracking coherence of electromechanical oscillation using Masking Signal based Empirical Mode Decomposition (MS-EMD) and Correlation Analysis(CA). The case study has been carried out on a simplified system of Southeastern Australian...
Using triphosgene as a substitute for phosgene, many 'urea-containing' direct dyes or intermediates (i.e. containing the ureylene--NHCOHN--system) can be safely and conveniently synthesised. The phosgenation is affected by hydrolysis side-reactions and the yields of product are dependent on the relative reactivity of the reacting amino groups, pH, temperature and the excess of triphosgene used. ...
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