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Situation of study on distribution network protection containing distributed generation and application scheme of intelligent protection

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4 Author(s)
Qin Lijun ; Dept. of Electr. & Electron. Eng., North China Electr. Power Univ., Beijing, China ; Wang Ying ; Zheng Shenrui ; Guo Qing

After distributed generation accessed in the power distribution network, the traditional type of distribution network will be no longer a radial network any more. This will bring many uncertain factors and make some difficulty to protection configuration and setting. First, this paper reviews the proposed protection principles. But so far, a variety of improvement schemes have some shortcomings, but also a need for deeply and extensively research. In this paper, basing on the existing intelligent protection scheme an IEEE 1588 intelligent protection is proposed. IEEE 1588 defines a precision time protocol (PTP) for networked measurement and control systems, it can well meet the needs of the requirements of data synchronization after distributed generation accessed. In addition, with the introduction of the multi-agent system (MAS), it can make full use of computer intelligence and the inherent distribution of power system to build a protection system. So the computer protection device can be regarded as a combination of multi-agent, each agent has its own goals, tasks and communication with other agents and methods of cooperation, every agent into full play their intelligence to coordinate the work to improve the performance of the whole protection device, it is suitable for distribution network protection scheme Containing distributed generation.

Published in:

Electric Utility Deregulation and Restructuring and Power Technologies (DRPT), 2011 4th International Conference on

Date of Conference:

6-9 July 2011