CHAPTER 3
Power System Network Matrices—2
3.1 Introduction
In the previous chapter, we have discussed the methods for formulating ZBus either directly or through the inversion of YBus. These topological methods, though effective for small-sized networks, have the following disadvantages when applied to large networks such as a real power system:
- For a large-sized power system, the dimension of YBus is very high. Inversion of such large size matrices may have computational difficulties.
- Network changes such as outage of lines, addition of lines and disconnection of sources are frequent. For these changes, the topology or the structure of the network is not the same and we shall have to formulate of network matrices from the beginning again. ...
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