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公开(公告)号：EP0272776A2
公开(公告)日：1988-06-29
申请号：EP87309033.6
申请日：1987-10-13
申请人： GLENTRONIC LIMITED
CPC分类号： H02M7/527
摘要： A three-phase supply system is described which has particular application for single to three-phase converters and variable speed three-phase a.c. motor controllers. This is achieved by using a solid state six element voltage-source inverter (20) to achieve and control the dual conversion of voltage and frequency. The solid state unit is used in the single to three-phase converter and in a three-phase to three-phase converter and consists of six power switches (34), (gate turn-off switches (GTOs)) which invert the fixed d.c. voltage derived from a rectified single-phase or three-phase a.c. mains (12,82) to provide a required symmetrical three-phase output supply (22). The use of solid state elements enables the unit to be controlled from a processing unit (54) which can be programmed and set so that the output voltage and frequency is carefully controlled to meet supply requirements for both the three-phase power supply and to achieve variable speed a.c. motor control.
摘要翻译： 描述了一种三相供电系统，其特别适用于单相三相转换器和变速三相交流电源。 电机控制器。 这是通过使用固态六元件电压源逆变器（20）来实现和控制电压和频率的双重转换来实现的。 固态单元用于单相到三相转换器和三相至三相转换器，由六个电源开关（34），（门极关断开关（GTO））组成，其反转固定直流电流。 由整流单相或三相交流产生的电压。 电源（12,82），以提供所需的对称三相输出电源（22）。 使用固态元件使得可以从可以被编程和设置的处理单元（54）来控制单元，使得仔细地控制输出电压和频率以满足三相电源的供电要求并实现 变速交流 电机控制。
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公开(公告)号：EP0272776A3
公开(公告)日：1989-07-05
申请号：EP87309033.6
申请日：1987-10-13
申请人： GLENTRONIC LIMITED
CPC分类号： H02M7/527
摘要： A three-phase supply system is described which has particular application for single to three-phase converters and variable speed three-phase a.c. motor controllers. This is achieved by using a solid state six element voltage-source inverter (20) to achieve and control the dual conversion of voltage and frequency. The solid state unit is used in the single to three-phase converter and in a three-phase to three-phase converter and consists of six power switches (34), (gate turn-off switches (GTOs)) which invert the fixed d.c. voltage derived from a rectified single-phase or three-phase a.c. mains (12,82) to provide a required symmetrical three-phase output supply (22). The use of solid state elements enables the unit to be controlled from a processing unit (54) which can be programmed and set so that the output voltage and frequency is carefully controlled to meet supply requirements for both the three-phase power supply and to achieve variable speed a.c. motor control.
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