专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO1983000958A1 INVERTER CONNECTION WITH BRIDGE FOR TRANSFORMING DIRECT CURRENT INTO SINGLE PHASE OR MULTIPHASE ALTERNATING CURRENT 审中-公开
标题翻译：逆变器连接用于将直流电流转换为单相或多相交流电流
公开(公告)号：WO1983000958A1
公开(公告)日：1983-03-17
申请号：PCT/HU1982000023
申请日：1982-05-07
申请人： VILLAMOSIPARI KUTATO INTÉZET
发明人： VILLAMOSIPARI KUTATO INTÉZET , BOROSS, Béla , FÜZESI, Endre , GANSZKY, Károly , KONDOR, Tibor , MOSONYI, Károly , TIHANYI, László
IPC分类号： H02M01/18
CPC分类号： H02M7/5155
摘要： A forced commutation defect, a simultaneous thyristor ignition, may occur for different reasons. The objective of the invention is to eliminate by a relatively simple solution the simultaneous ignition of thyristors caused by energy malfunctions, overloads, voltage variations at the input side etc. The objective is achieved, by means of a bridge connection at the inverter that transforms the direct current into an alternating current. The direct current entry point of this bridge has a main connection made up of the two controlled bridge branches connected in series having front end and rear end leads; and having at least a first half-bridge with a midpoint current outlet having a thyristor in each bridge branch; and with another, second half-bridge connected to the direct current entry connection, having two bridge branches connected in series and with a midpoint current outlet; and having an alternating current load and a control unit consisting of the control circuit for the bridge branches with at least one outlet for the control signal, and an ignition circuit for the ignition of the thyristors having at least one current entry and one current outlet, as well as a control unit containing the beat impulse generator that commands the control circuit through at least one outlet connector, that determines the frequency of the alternating current, the number of connectors corresponding to the number of phases and the phase angle being determined accordingly. For the control of the closing capacity of the bridge branches in the direction of the current flow there is provided a unit controlling the current extinction covering at a time one pair of connectors of the individual front end and rear end pole connectors of the two bridge circuits connected in series and connected at least to the first half-bridge permitting thyristor ignition, in a state of longitudinal disruption that impedes flow of current in the two controlled bridge branches connected in series, and in a state of longitudinal perfect connection of any of the bridge circuits of the control unit giving a command impeding the ignition of at least one of the thyristors of the bridge branches in disrupted state inthe direction of current flow; and, having a forced commutation extinction unit independent of the thyristor ignition, the control unit having the outlet connectors for the counter-phase extinction command that changes every half-period the electric signal level and that is synchronized with the signal of at least one outlet conector of the beat impulse generator for the independent forced commutation extinction unit per phase.
摘要翻译：由于不同的原因，可能会发生强制换向缺陷，同步晶闸管点火。本发明的目的是通过相对简单的解决方案消除由能量故障，过载，输入侧的电压变化引起的晶闸管的同时点火等。目的是通过在逆变器处的桥连接来实现，直流电流进入交流电。该桥的直流入口具有由串联连接的两个受控桥分支的前端和后端引线构成的主要连接; 并且具有至少一个第一半桥，其具有在每个桥接支路中具有晶闸管的中点电流出口; 连接到直流进入连接的另一个第二半桥，具有串联连接的两个桥接分支和中点电流插座; 并且具有交流负载和由用于所述桥接支路的控制电路组成的控制单元，所述控制电路具有用于所述控制信号的至少一个出口，以及点火电路，所述点火电路用于点燃具有至少一个电流入口和一个电流出口的晶闸管，以及包含击打脉冲发生器的控制单元，其通过至少一个出口连接器命令控制电路，所述至少一个出口连接器确定交流电流的频率，对应于相数的连接器的数量以及相应地确定的相位角。为了控制电桥分支在电流方向上的闭合能力，提供了一个控制当前消光覆盖物的单元，其中两个桥接电路的各个前端和后端极连接器的一对连接器串联连接并且至少连接到第一半桥，允许晶闸管点火，在纵向破坏的状态下，其阻止串联连接的两个受控桥分支中的电流流动，并且处于纵向完美连接的状态所述控制单元的桥接电路给出阻碍所述桥接支路中的至少一个晶闸管的点火的指令，所述控制单元在电流方向上处于破坏状态; 并且具有独立于晶闸管点火的强制换向消光单元，所述控制单元具有用于相位消光命令的出口连接器，每个半周期改变电信号电平并且与至少一个出口的信号同步每相独立强制换向灭火装置的搏动脉冲发生器的控制器。

IPRDB

热门服务

关于我们

友情链接

联系方式