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Title:
HYDROELECTRIC POWER SYSTEM INTERCONNECTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/058764
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a hydroelectric power system interconnection system that comprises, without having a host controller or the like, a plurality of water wheel generators that perform operation of autonomously controlling the number of generators in response to changing water power. In order to achieve this purpose, provided is a hydroelectric power system interconnection system that uses a plurality of configurations each comprising a water wheel provided to a water supply pipe, a permanent magnet synchronous generator driven by the water wheel, and a power generation controller that controls power generation of the permanent magnet synchronous generator by an inverter, that interconnects DC powers generated by a plurality of the inverters, and that thereafter performs reverse power flow to systems via a system interconnection apparatus, the hydroelectric power system interconnection system being configured such that power generation controls based on characteristics of a plurality of the water wheels are independently performed by the respective power generation controllers and such that operations of autonomously controlling the number of power generators are performed in response to a change of water amount in the water supply pipe, by setting, to water wheels, a start rotation speed and a stoppage rotation speed for power generation to be different from those of other water wheels.

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Inventors:
TOMITA Toshio (3, Kanda Neribei-cho, Chiyoda-k, Tokyo 22, 〒1010022, JP)
OKAFUJI Kei (3, Kanda Neribei-cho, Chiyoda-k, Tokyo 22, 〒1010022, JP)
SANO Masahiro (3, Kanda Neribei-cho, Chiyoda-k, Tokyo 22, 〒1010022, JP)
Application Number:
JP2018/028423
Publication Date:
March 28, 2019
Filing Date:
July 30, 2018
Export Citation:
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Assignee:
HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD. (3 Kanda Neribei-cho, Chiyoda-ku Tokyo, 22, 〒1010022, JP)
International Classes:
H02P9/04; F03B15/02; H02P101/10
Foreign References:
JP2005002871A2005-01-06
JP2009106151A2009-05-14
JPH08322297A1996-12-03
Attorney, Agent or Firm:
SEIRYO I.P.C. (24-2, Hatchobori 2-chome Chuo-k, Tokyo 32, 〒1040032, JP)
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