NDLI: The probabilistic study of voltage problems in distribution network with small dispersed generation

Content Provider	IEEE Xplore Digital Library
Author	Sobierajski, M. Miedzinski, B. Rojewski, W.
Copyright Year	2004
Description	Author affiliation: Inst. of Electr. Power Eng., Wroclaw Univ. of Technol., Poland (Sobierajski, M.; Miedzinski, B.; Rojewski, W.)
Abstract	Fulfilling voltage limits produces the bottleneck of sending the whole dispersed generation to the MV network. The voltage regulation at a dispersed power station and the HV/MV transformer on-load tap changer can be simultaneously used for voltage control. To achieve proper results, the randomness of active and reactive node loads should be taken into consideration. The rectangular probability distribution of node loads may be assumed as a pessimistic one. So the node loads are described by Ey, the expected value, and My, the covariance matrix. To find the value of node voltages and reactive node generation, load flow equations can be linearized. Rectangular components of node voltages are treated as the linear transformation of uniformly distributed node loads. All non-linear functions of rectangular components of node voltages can be linearized as well. It means that the node voltage magnitudes and reactive generations are random variables subjected to the normal probability distribution. All considerations are illustrated with an example MV power network with two parallel small CHP generators.
Sponsorship	IEEE PES IEE Cigre NGT EDF Energy WUHAN HI-TECH
Starting Page	60
Ending Page	64
File Size	727485
Page Count	5
File Format	PDF
ISBN	1860433650
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-09-06
Publisher Place	UK
Access Restriction	Subscribed
Rights Holder	UWE
Subject Keyword	Nonlinear equations Cogeneration Probability distribution Distributed power generation Covariance matrix Random variables Voltage control On load tap changers Power generation Load flow
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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