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1. WO2007096994 - SYSTEM-COOPERATIVE INVERTER

Publication Number WO/2007/096994
Publication Date 30.08.2007
International Application No. PCT/JP2006/303464
International Filing Date 24.02.2006
IPC
H02M 7/48 2007.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
7Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
42Conversion of dc power input into ac power output without possibility of reversal
44by static converters
48using discharge tubes with control electrode or semiconductor devices with control electrode
CPC
H02H 7/1225
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
7Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
10for converters; for rectifiers
12for static converters or rectifiers
122for inverters, i.e. dc/ac converters
1225responsive to internal faults, e.g. shoot-through
H02H 7/16
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
7Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
16for capacitors
H02M 7/487
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
7Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
42Conversion of dc power input into ac power output without possibility of reversal
44by static converters
48using discharge tubes with control electrode or semiconductor devices with control electrode
483Converters with outputs that each can have more than two voltages levels
487Neutral point clamped inverters
Y02E 10/56
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
10Energy generation through renewable energy sources
50Photovoltaic [PV] energy
56Power conversion systems, e.g. maximum power point trackers
Applicants
  • 三菱電機株式会社 MITSUBISHI DENKI KABUSHIKI KAISHA [JP]/[JP] (AllExceptUS)
  • 鳥羽 正裕 TOBA, Masahiro [JP]/[JP] (UsOnly)
  • 松原 則幸 MATSUBARA, Noriyuki [JP]/[JP] (UsOnly)
  • 景山 正則 KAGEYAMA, Masanori [JP]/[JP] (UsOnly)
  • 西尾 直樹 NISHIO, Naoki [JP]/[JP] (UsOnly)
Inventors
  • 鳥羽 正裕 TOBA, Masahiro
  • 松原 則幸 MATSUBARA, Noriyuki
  • 景山 正則 KAGEYAMA, Masanori
  • 西尾 直樹 NISHIO, Naoki
Agents
  • 酒井 宏明 SAKAI, Hiroaki
Priority Data
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) SYSTEM-COOPERATIVE INVERTER
(FR) INVERSEUR COOPERATIF DE SYSTEME
(JA) 系統連系インバータ装置
Abstract
(EN)
In a system-cooperative inverter device in cooperation with an alternating current power system, the inverter device is safely stopped when an abnormal state of an electrolytic capacitor is detected. An inverter device (1) in cooperation with an alternating current power system includes an inverter (21) to invert a direct current power supplied from a solar battery (11) to an alternating current power and connects an output of the inverter (21) to an alternating current power system. The inverter device (1) is provided with a pair of direct current busses (5, 6) to connect a direct current power source to the inverter (21), a pair of series connected capacitors (15a, 15b) connected between the busses (6, 7), a switch means (12) inserted in either the bus (6) on the positive pole or the bus (7) on the negative pole, voltage monitor means (16a, 16b) to monitor terminal voltages of the pair of capacitors (15a, 15b), respectively, and a control means (22: CPU) to control switching of the switching means in response to the monitor voltages detected by the voltage monitor means.
(FR)
La présente invention concerne un inverseur coopératif de système en coopération avec un système de courant alternatif, dans lequel l'inverseur est arrêté en toute sécurité lorsqu'un état anormal d'un condensateur électrolytique est détecté. Un inverseur (1) en coopération avec un système de courant alternatif inclut un inverseur (21) pour inverser un courant continu produit par une batterie solaire (11) en un courant alternatif et qui connecte une sortie de l'inverseur (21) à un système de courant alternatif. L'inverseur (1) est muni d'une paire de bus de courant continu (5, 6) pour raccorder une source de courant continu à l'inverseur (21), une paire de condensateurs reliés en série (15a, 15b) raccordés entre les bus (6, 7), un moyen de commutation (12) inséré dans le bus (6) du pôle positif ou dans le bus (7) du pôle négatif, un moyen de contrôle de la tension (16a, 16b) pour contrôler les tensions de bornes de la paire de condensateurs (15a, 15b), respectivement, et un moyen de commande (22: CPU) pour contrôler la commutation du moyen de commutation en réponse aux tensions de contrôle détectées par le moyen de contrôle de la tension.
(JA)
 交流電力系統と連系する系統連系インバータ装置において、電解コンデンサの異常を検出して、装置を安全に停止させること。太陽電池(11)から供給される直流電力を交流電力に変換するインバータ(21)を具備し、インバータの出力を交流電力系統と連系させる系統連系インバータ装置(1)において、直流電源とインバータとを接続する一対の直流母線間(6,7)に挿入される直列接続された一対のコンデンサ(15a,15b)と、一対の直流母線を構成する正極側母線(6)または負極側母線(7)のいずれかに挿入される開閉手段(12)と、一対のコンデンサの各端子電圧をそれぞれモニタする電圧モニタ手段(16a,16b)と、電圧モニタ手段が検出したモニタ電圧に基づいて開閉手段の開閉を制御する制御手段(22:CPU)を備える。
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