Читать книгу Power Electronics-Enabled Autonomous Power Systems - Qing-Chang Zhong - Страница 39

There are many challenges during this paradigm shift of power systems. The iceberg of power system challenges and solutions is illustrated in Figure 2.11. On the surface, the challenges are seen as the change from centralized generation to distributed generation or democratization with many heterogeneous players, which are homogenized after operating power electronic converters as VSMs. However, the system stability is still a question because an interconnected system may become unstable even for individually stable systems. This relies on the synchronization mechanism (somewhat hidden). Both the first and the second generations of VSMs are equipped with the inherent synchronization mechanism, but it is not straightforward to rigorously prove the system stability. The third‐generation (3G) of VSMs are expected to guarantee the stability of each individual VSM and also the stability of a system with multiple VSMs interconnected together.

Figure 2.11 The iceberg of power system challenges and solutions.