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1. CN1659776 - PWM inverter control device and control method

Office
Chine
Numéro de la demande 03813546.9
Date de la demande 04.06.2003
Numéro de publication 1659776
Date de publication 24.08.2005
Numéro de délivrance 100401629
Date de délivrance 09.07.2008
Type de publication C
CIB
H02M 7/48
HÉLECTRICITÉ
02PRODUCTION, CONVERSION OU DISTRIBUTION DE L'ÉNERGIE ÉLECTRIQUE
MAPPAREILS POUR LA TRANSFORMATION DE COURANT ALTERNATIF EN COURANT ALTERNATIF, DE COURANT ALTERNATIF EN COURANT CONTINU OU VICE VERSA OU DE COURANT CONTINU EN COURANT CONTINU ET EMPLOYÉS AVEC LES RÉSEAUX DE DISTRIBUTION D'ÉNERGIE OU DES SYSTÈMES D'ALIMENTATION SIMILAIRES; TRANSFORMATION D'UNE PUISSANCE D'ENTRÉE EN COURANT CONTINU OU COURANT ALTERNATIF EN UNE PUISSANCE DE SORTIE DE CHOC; LEUR COMMANDE OU RÉGULATION
7Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu; Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif
42Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité
44par convertisseurs statiques
48utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
CPC
H02M 1/32
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
1Details of apparatus for conversion
32Means for protecting converters other than automatic disconnection
H02M 1/36
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
1Details of apparatus for conversion
36Means for starting or stopping converters
H02M 7/483
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
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
H02M 7/527
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
505using devices of a thyratron or thyristor type requiring extinguishing means
515using semiconductor devices only
525with automatic control of output waveform or frequency
527by pulse width modulation
H02M 7/48
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
Déposants Yaskawa Denki Seisakusho KK
株式会社安川电机
Inventeurs Tanaka Yoshiyuki
田中善之
Yamanaka Katsutoshi
山中克利
Watanabe Eiji
渡边英司
Mandataires quan xianqi
北京三友知识产权代理有限公司
Données relatives à la priorité 2002171256 12.06.2002 JP
Titre
(EN) PWM inverter control device and control method
(ZH) PWM逆变器控制装置和控制方法
Abrégé
(EN) A multi-level PWM inverter control device capable of safely switching from normal operation to protection operation and safely and smoothly returning to the normal operation from the protection operation without requiring a complicated algorithm. When the measured current value I is equal to or greater than a first reference value I1 and smaller than a second reference value I2, a zero vector starting from the OOO state at which intermediate potential is output for all the phases is output (step 22). When the current value I is equal to or greater than the second reference value I2 and smaller than a third reference value I3, after the zero vector is output, a base block operation for turning off all the switching elements is performed (step 28). When the current value I becomes greater than the third reference value I3, an emergency stop is performed (step 29). When returning to the normal operation after performing the base block, the zero vector output operation is performed before returning to the normal operation.
(ZH)

本发明提供一种PWM逆变器控制装置和控制方法,在多电平PWM逆变器控制装置中,无需复杂的控制算法,安全地进行从正常动作向保护动作的切换,安全且平滑地进行从保护动作向正常动作的复原。在本发明中,当测得的电流值I大于等于第1基准值I1而小于第2基准值I2时,输出从000状态开始的零矢量,该000状态是指全部相输出中间电位的状态(步骤22)。当电流值I大于等于第2基准值I2而小于第3基准值I3时,在输出零矢量后进行使全部开关元件处于关断状态的基极阻断动作(步骤28),当电流值I大于等于第3基准值I3时,进行紧急停止(步骤29)。在进行基极阻断动作之后向正常动作复原时,在进行零矢量的输出动作之后进行向正常动作的复原。