| Abstract: |
| Synchronized wide area communication has become a mature technology, which makes the real-time interaction
between the substations and the wide area protection and control system possible. However, the present
protection and control system to handle this real-time data has been recognized to be deficient. This paper begins
by reviewing the development history of power system protection, with special attention paid to the recent
development in the field of wide-area and integrated protections, in order to look into the future development of
protection and control systems. Then the concept of integrated wide area protection and control is introduced,
where it can be shown that a hierarchical protection and control system provides the protection and control for
wide area or regional power substations/plants and their associated power networks. The system is mainly divided
into three levels: the local, the substation/plant, and the wide area/regional. The integrated functions at each level
are described in details with an aim to develop an optimal coordination mechanism between each level. The key
element in the proposed system is the wide area real-time protection and control information platform, which not
only enables the merger of three lines of defence for power system protection and control, but also provides a
perfect tool for the application of cloud computing in substations and power networks. |
| Key words: Power system protection, Wide area protection, Integrated protection and control, Information platform |
| DOI：10.1186/s41601-016-0012-2 |
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| Fund: |
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