@inproceedings{SemerowMiltnerHornetal., author = {Semerow, Anatoli and Miltner, Andreas and Horn, Stefan and Dimitrovski, Robert and Luther, Matthias}, title = {Analysis of a disturbance localization method for incidents in continental Europe}, series = {2016 IEEE PES Innovative Smart Grid Technologies Conference Europe}, booktitle = {2016 IEEE PES Innovative Smart Grid Technologies Conference Europe}, publisher = {IEEE Computer Society Press}, isbn = {978-1-5090-3358-4}, doi = {10.1109/isgteurope.2016.7856312}, abstract = {To localize incidents such as generator trips or load shedding, which cause transients in power systems, a technique from seismology is used in this paper: triangulation by means of information from Phasor Measurement Units (PMU). The synchronized observation of frequency change arrival times, which represent an electromechanical disturbance propagation, allows to approximate the disturbance location and thereby to support a reliable power system operation. For the verification and further development of this method a post analysis of three incidents of last years in the Continental Europe synchronous area (CESA) power system is done using two different numerical methods to solve the set of triangulation equations. The calculated deviations of estimated to real locations show on the one hand a relative good approximation to the real incident locations, but also a high dependency on the assumed electromechanical disturbance propagation speed and the chosen parameters of signal processing. Nevertheless, the method seems to be promising for future applications and is worth to be further developed.}, language = {en} } @inproceedings{SemerowHornSchwarzetal., author = {Semerow, Anatoli and Horn, Stefan and Schwarz, Bianca and Luther, Matthias}, title = {Disturbance localization in power systems using wide area measurement systems}, series = {2016 IEEE International Conference on Power System Technology}, booktitle = {2016 IEEE International Conference on Power System Technology}, publisher = {IEEE Computer Society Press}, isbn = {978-1-4673-8848-1}, doi = {10.1109/powercon.2016.7753872}, abstract = {There are different innovative concepts to localize disturbances with an electromechanical impact in power systems using synchronized frequency measurements from Wide Area Measurement Systems. This paper investigates five approaches, of which four are mainly discussed and one is novel: Gradient Search, Triangulation, Parzen Windows, Probability Circles and Time Distance Ratios. The similarities and differences of the methods are described and analyzed within a case study using publicly available frequency measurements and a dynamic study model. The cases are selected with the aim to point out the limits of the methods and to derive recommendations for improvements to be further developed. The study explicitly shows the challenges of the application and provides suggestions how to meet them.}, language = {en} }