公开(公告)号：US6118187A

公开(公告)日：2000-09-12

申请号：US974822

申请日：1997-11-20

申请人： Stephan Hepner ,  Andrew Wihler

发明人： Stephan Hepner ,  Andrew Wihler

IPC分类号： F02C6/00 ,  H02J3/24 ,  H02P9/00 ,  H02P9/04

CPC分类号： H02P9/04

摘要： A method for controlling a power plant which delivers electrical power to an electrical grid. The grid has a grid frequency which fluctuates around a nominal frequency. A power output of the power plant is controlled as a function of a control frequency, in such a manner that the power output is increased when the control frequency decreases below the nominal frequency. On the other hand the power output is decreased when the control frequency rises above the nominal frequency. The grid frequency is continuously measured. The measured grid frequency is averaged to give, as a moving average, a slowly varying averaged trend frequency which is characteristic of the long term behavior of the grid frequency. The averaged grid frequency is used as the control frequency, if the measured grid frequency lies within a predetermined band around the averaged grid frequency. The measured grid frequency is used as the control frequency, if the measured grid frequency lies outside the predetermined band.

摘要翻译： 一种用于控制向电网传递电力的发电厂的方法。 电网具有围绕标称频率波动的电网频率。 发电厂的功率输出作为控制频率的函数被控制，使得当控制频率降低到标称频率以下时功率输出增加。 另一方面，当控制频率高于标称频率时，功率输出减小。 电网频率连续测量。 平均测量的电网频率作为移动平均值，给出电网频率长期行为特征的缓慢变化的平均趋势频率。 如果测量的电网频率位于平均电网频率周围的预定频带内，则将平均电网频率用作控制频率。 如果测量的电网频率位于预定频带之外，则将测量的电网频率用作控制频率。

公开(公告)号：US06167690A

公开(公告)日：2001-01-02

申请号：US09110898

申请日：1998-07-07

申请人： Stephan Hepner ,  Andrew Wihler

发明人： Stephan Hepner ,  Andrew Wihler

IPC分类号： F02C900

CPC分类号： G05B5/01

摘要： In a control system for controlling at least one variable (TITm) of a process, the at least one variable (TITm) being calculated from a multiplicity of measured process variables (TATm, pCm), the measured process variables (TATm, pCm) in each case being measured via associated measuring sections (18, 19), the transfer functions (G2(s), G1(s)) of which have a different time response, an improvement in particular during transient actions is achieved in that, to avoid instability, correction means (21) which equalize the different time responses of the individual measuring sections (18, 19) are provided.

摘要翻译： 在用于控制过程的至少一个变量（TITm）的控制系统中，从多个测量过程变量（TATm，pCm），测量的过程变量（TATm，pCm）计算出的至少一个变量（TITm） 每个情况都是通过相关联的测量部分（18,19）测量的，其传递函数（G2（s），G1（s））具有不同的时间响应，特别是在瞬态动作期间的改进是为了避免 提供了均衡各个测量部分（18,19）的不同时间响应的校正装置（21）。