公开(公告)号：US06801019B2

公开(公告)日：2004-10-05

申请号：US10182529

申请日：2002-12-31

申请人： Lawrence Haydock ,  Wlodzimierz Koczara ,  Nazar Al-Khayat ,  Neil Brown ,  Denis Hedley Dalby ,  Jawad Al-Tayie ,  Robert Pawel Dziuba ,  Jaroslaw Leonarski ,  George Williamson Laird

发明人： Lawrence Haydock ,  Wlodzimierz Koczara ,  Nazar Al-Khayat ,  Neil Brown ,  Denis Hedley Dalby ,  Jawad Al-Tayie ,  Robert Pawel Dziuba ,  Jaroslaw Leonarski ,  George Williamson Laird

IPC分类号： H02P902

CPC分类号： H02J9/066 ,  H02J9/062 ,  H02M5/458 ,  H02M2001/007 ,  H02P9/04 ,  H02P9/48

摘要： An electric power generating set which automatically varies its speed to match load variations at any time includes an engine driven generator G which provides a positive, Ga and a negative, Gb AC output voltage each of which is rectified by a respective rectifier Re3a, Re3b. Each rectifier Re3a,Re3b has one terminal connected to a common neutral line N. The DC output voltage of each rectifier Re3a, Re3b is boosted in a respective booster circuit which also has one terminal connected to the neutral line N. The combined output of the two booster circuits, Va+Vb is fed to an Inverter IN which converts it to the AC power output of the generating set. A DC load current between the booster circuits and the inverter IN is monitored and used to provide a speed demand feedback signal Srs to the speed control of the engine EN. The inverter IN is controlled so that the voltage and frequency of the AC power output of the generating set are reduced in response to a fall in the intermediate DC voltage Va+Vb that is fed to the inverter IN and which is monitored by a voltage sensor Vsab.

摘要翻译： 在任何时候自动改变其速度以匹配负载变化的发电机组包括发动机驱动的发电机G，其提供正的，Ga和负的Gb AC输出电压，每个电压由相应的整流器Re3a，Re3b整流。 每个整流器Re3a，Re3b具有一个端子连接到公共中性线N.每个整流器Re3a，Re3b的直流输出电压在相应的升压电路中升压，该升压电路中还有一个端子连接到中性线N. 两个升压电路Va + Vb被馈送到变换器IN，其将其转换成发电机组的AC电力输出。 升压电路和逆变器IN之间的直流负载电流被监测并用于向发动机EN的速度控制提供速度需求反馈信号Srs。 控制逆变器IN，使得发电机组的交流电力输出的电压和频率响应于馈送到逆变器IN的中间直流电压Va + Vb的下降而减小，并由电压传感器 Vsab。