Simulating the modes of electrical networks equipped with a distributed static series compensator system
Keywords:
distributed static series compensators, modes of electrical networks, simulation, overhead power transmission lineAbstract
Currently, the technology of controlling the modes of electric power systems, based on the application of the distributed static series compensators (DSSC) on overhead power transmission lines, is actively developing. The main advantages of distributed static series compensators are as follows: the possibility of centralized or autonomous regulation of the line current; high reliability due to the fact that the failure of one device will not have a noticeable impact on the system as a whole; weakened response to typical emergency situations; simple replacement of a failed device; fast installation procedure; minimization of ring power flows and reduction of losses; reduced capital costs to increase power flows. To implement distributed static series compensators into practical use, it is required to develop computer models that provide adequate simulation of the modes of complex electrical networks equipped with distributed static series compensators. Such models can be formed on the basis of methods of determining the modes of electric power systems in phase coordinates, developed at the Irkutsk State Transport University. The article presents the results of research intended to develop computer models of distributed static series compensators designed to calculate the modes of complex electrical networks in phase coordinates. The results of the research have shown that the developed models provide adequate simulation of the modes of electrical networks equipped with distributed static series compensators. Models of distributed static series compensators are implemented on the basis of multiphase representation of elements of electric power systems (EPS) and can be used to solve the following problems: determination of normal, emergency and open-phase modes of electric power systems equipped with distributed static series compensators; calculation of electromagnetic fields generated by power lines on which the distributed static series compensators are installed.
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