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1. 发明专利

JPH10304565A METHOD AND EQUIPMENT FOR EVALUATING POWER SYSTEM, METHOD AND EQUIPMENT FOR OPTIMIZING POWER FLOW OF POWER SYSTEM, AND METHOD AND EQUIPMENT FOR SUPPORTING POWER-SYSTEM PLANNING 失效
公开(公告)号：JPH10304565A
公开(公告)日：1998-11-13
申请号：JP10947797
申请日：1997-04-25
申请人： HITACHI LTD , KANSAI ELECTRIC POWER CO
发明人： TOMITA YASUSHI , FUKUI CHIHIRO , TAMURA SHIGERU , TANAKA SHIKAO , INOUE SHINOBU
IPC分类号： H02J13/00 , H02J3/00
摘要： PROBLEM TO BE SOLVED: To accurately evaluate a power system by using an evaluation index obtained by quantitatively considering the cost incurred by a loss at the time of a defect when a route is cut off and on the other occasions than when the route is cut off and the total power generation cost of normal times. SOLUTION: A power system evaluation equipment is constituted of an input/output section 1, a generator output adjustment section 2, an RG index calculating section 3, a power flow- controlled generation cost minimizing power flow data generating section 4, a system- segmented load-breaking quantity calculating section 5, an electrically controlled machine determining section 6, an electric control quantity calculating section 7, an electrically controlled load breaking quantity calculating section 8, a load breaking quantity cost calculating section 9, and a total power generation cost calculating section 10. This equipment is also provided with a system state database section 11, a defect database section 12, a parameter database section 13, and a power flow data section 14 for calculating an RG index. A load breaking quantity and an increase in total power generation cost when a route is cut off and on the other occasions than when the route is cut off, are calculated under various system states and various restriction conditions, and then these values are calculated in terms of cost and then the calculated cost is multiplied by a weight factor for each defect case. The obtained value is added with the usual total power generation cost to obtain an RG index.

2. 发明专利

JP2005203254A Solid oxide fuel cell 审中-公开
标题翻译：固体氧化物燃料电池
公开(公告)号：JP2005203254A
公开(公告)日：2005-07-28
申请号：JP2004009056
申请日：2004-01-16
申请人： Kansai Electric Power Co Inc:The , Mitsubishi Materials Corp , 三菱マテリアル株式会社 , 関西電力株式会社
发明人： YAMADA MASAHARU , HOSOI TAKASHI , KOMADA KIICHI , TANAKA SHIKAO
IPC分类号： H01M8/12 , H01M8/04
CPC分类号： Y02E60/525
摘要： PROBLEM TO BE SOLVED: To provide a solid oxide fuel cell in which power generation can be continued by using a normal power generation cell even when a failure occurs to either one of the power generation cells and extreme deterioration of power generating performance can be suppressed as the whole fuel cell.
SOLUTION: This is the solid oxide fuel cell 1 which is provided with a plurality of serially connected power generation cells 7, supplies fuel gas and oxidizer gas to each of those power generation cells 7 to make it cause power generation reaction. A prescribed numbers of individual power generation cells or serially connected power generation cells are made to be power generation blocks 30, and bypass diodes 25 are connected in parallel with respective power generation blocks 30.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决的问题：为了提供一种固体氧化物型燃料电池，其中即使在发电单元中的任一个发电故障和发电性能的极度恶化的情况下，也可以通过使用正常的发电电池来继续发电作为整个燃料电池被抑制。解决方案：这是固体氧化物燃料电池1，其设置有多个串联连接的发电电池7，向这些发电电池7中的每一个提供燃料气体和氧化剂气体，从而使发电反应。将规定数量的个别发电电池或串联连接的发电电池作为发电块30，并且旁路二极管25与各个发电块30并联连接。（C）2005，JPO＆NCIPI

3. 发明专利

JPH11113175A POWER CONVERSION DEVICE 失效
公开(公告)号：JPH11113175A
公开(公告)日：1999-04-23
申请号：JP27177597
申请日：1997-10-03
申请人： MITSUBISHI ELECTRIC CORP , KANSAI ELECTRIC POWER CO
发明人： FUJII TOSHIYUKI , TAMAI SHINZO , MORITA MEGUMI , TANAKA SHIKAO
IPC分类号： H02J3/36 , H02J1/10 , H02J3/46
摘要： PROBLEM TO BE SOLVED: To suppress resonance in a DC system and enable stable power transmission/reception by a method wherein the 1st effective power command of a voltage-type power converter is outputted in accordance with a power command corresponding to each voltage-type power converter and the detection value of a power detecting means. SOLUTION: A power detection circuit 107 outputs an effective AC power P=Vu×Iu+Vv×Iv+Vw×Iw by using AC voltages Vu, Vv and Vw of respective phases which are detected by voltage detectors 104 and AC currents Iu, Iv and Iw of respective phases which are detected by current detectors 105. The effective power P is approximately equal to a power which is subjected to AC-DC conversion by the voltage-type power converter 101. The detected effective AC power P is inputted to a power control circuit 120. A power deviation between the effective AC power P and a power command value Pref is calculated by a calculator 121 and amplified and the effective power command value Pac of the voltage-type power converter 101 is outputted. By this operation, the effective AC power P is so adjusted as to agree with the power command value Pref.

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