2005 Fiscal Year Final Research Report Summary
Research on Technical Management of Distributed Generators based on Decentralized Supply Responsibility
| Project/Area Number |
15360144
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
電力工学・電気機器工学
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| Research Institution | HOKKAIDO UNIVERSITY |
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Principal Investigator |
TANAKA Eiichi Hokkaido Univ., Grad.School of Info.Sci.and Tech., Inst., 大学院・情報科学研究科, 助手 (10124538)
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| Co-Investigator(Kenkyū-buntansha) |
KITA Hiroyuki Hokkaido Univ., Grad. School of Info. Sci. and Tech., Prof., 大学院・情報科学研究科, 教授 (30214779)
HASEGAWA Jun Hakodate National College of Tech., President, 校長 (40001797)
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| Project Period (FY) |
2003 – 2005
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| Keywords | Distributed generators / Electric energy storage system / Energy management / Integrated control / Frequency control / Customer consulting service / Communication network / Customized power supply |
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| Research Abstract |
This research project aimed to investigate a new framework for decentralizing supply responsibility among local independent system operators which control distributed generators within each community areas.
The brief results are as follows :
1. By introducing Energy Management Center (EMC) installed energy storage systems and power conversion devices between distribution network and customers, smoothing power outputs of distributed generators, maintaining specified voltages and continuing power supply within islanded area are enabled.
2. Technical management of EMCs and customers to participate them in system operation by direct or indirect control using communication network was investigated. As a result, it was conformed that the liability of system operator for load frequency control could be reduced and load factor would be improved by EMC introducing real-time pricing of electric energy.
3. Contribution method of distributed generators for power supply and reserves was simulated and e
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valuated quantitatively. As a result, it was revealed that the installed capacity prepared by system operator for electric energy supply and control could be reduced. It was also revealed that regulating reliability depended on customer's needs was more economical than regulating uniformly.
4. Possibility of consulting service about introduction of distributed generators and energy storage systems was presented by developing evaluation method for local distribution system's reliability, power quality against system faults and cost reduction.
5. Market simulation model based on essential trading rules was developed considering power exchange between local areas and system operator. Two basic solutions for the important issue to secure operation reserves under deregulation were developed and evaluated.
6. Assessment of distribution network reliability was carried out in two cases that each EMC took responsibility for power supply directly and local independent system operator which supervised EMCs in the area took it. It was conformed that the former is favorable for social cost. Less
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