NDLI: Method of inferring operation status of distributed generation systems in distribution section

Content Provider	IEEE Xplore Digital Library
Author	Asari, M. Nakano, Y. Ito, N. Onoda, T. Matsuda, K. Horikoshi, K. Tamaki, M.
Copyright Year	2009
Description	Author affiliation: System Engineering Research Laboratory, Central Research Institute of Electric Power Industry, Tokyo 201-8511, Japan (Asari, M.; Nakano, Y.; Ito, N.; Onoda, T.) \|\| Tohoku instumant Co., Miyagi 981-3687, Japan (Tamaki, M.) \|\| Research and Developing Center, Tohoku Electric Power Inc, Sendai 981-0952, Japan (Matsuda, K.; Horikoshi, K.)
Abstract	Recently, many distributed generation systems have been installed in power distribution networks. In the case of an extensive penetration of distributed generation systems, serious problems such as overvoltage at the customer receiving end as a result of surplus photovoltaic generation and islanding phenomena at a fault in a distribution line may occur. In particular, the distribution line may become overloaded during fault recovery because all distributed generation systems must stop operating instantly to prevent islanding at the fault; then, generation cannot be resumed instantly in accordance with the grid interconnection code in Japan. However, distribution network operators can prevent overload if the operation status of distributed generators can be estimated in advance. As a first step of inferring the operation status of distributed generators, we developed two methods of inferring the operation status of distributed generators at the customer receiving end. One was a method for low-voltage customers, in which the change in power factor measured at the customer receiving end was used. The other was a method for medium-voltage customers, in which both the active power and power factor measured at the customer receiving end were used. These two methods could infer that the distributed generators are “in operation” or “not in operation” at the customer receiving ends. However, the operation status in a distribution section, which is sectioned by two pole-mounted gas switches, should be inferred from the viewpoint of distribution operation. As the active power and power factor in the distribution section are affected by the loads of other customers, it is
Starting Page	1
Ending Page	6
File Size	185731
Page Count	6
File Format	PDF
ISBN	9781424444304
DOI	10.1109/SAE.2009.5534854
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-28
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Photovoltaic systems Reactive power Power measurement Medium voltage Distributed control Distributed power generation Power systems Solar power generation Voltage control Mesh generation
Content Type	Text
Resource Type	Article

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