公开(公告)号：US3939660A

公开(公告)日：1976-02-24

申请号：US519703

申请日：1974-10-31

申请人： Ola J. Aanstad

发明人： Ola J. Aanstad

IPC分类号： F01D17/24 ,  F01D19/00 ,  F01K7/24 ,  F01K9/00

CPC分类号： F01K7/24 ,  F01D17/24 ,  F01D19/00

摘要： In a turbine system with first and second turbine stages, each having a bypass line thereacross, provision is made for utilizing only the valving of the first turbine stages to control the acceleration of the shaft driven by the turbine system from start-up to synchronous speed. At the same time, provision is made for diverting enough of the flow to the second turbine stages to meet the requirements of those stages.

摘要翻译： 在具有第一和第二涡轮级的涡轮机系统中，每个具有旁路管线，其中仅设置利用第一涡轮级的阀门来控制由涡轮机系统驱动的轴从启动到同步速度的加速度 。 同时，提供了将足够的流量转移到第二涡轮机级以满足这些级的要求。

公开(公告)号：US4047005A

公开(公告)日：1977-09-06

申请号：US497345

申请日：1974-08-13

申请人： Richard S. Heiser ,  Ola J. Aanstad

发明人： Richard S. Heiser ,  Ola J. Aanstad

IPC分类号： F01K23/10 ,  F22B35/00 ,  F01K23/00 ,  F02C1/04 ,  G05B15/00

CPC分类号： F22B35/008 ,  F01K23/108 ,  Y02E20/16

摘要： A combined cycle electric power plant includes two gas turbines, a steam turbine, and a digital control system with an analog or manual backup. Each of the gas turbines has an exhaust heat recovery steam generator connected to a common header from which the steam is supplied by one or both of the steam generators for operating the steam turbine. The digital/analog system includes a steam throttle pressure limiting control, which maintains a minimum steam throttle pressure as a function of steam flow to limit the maximum steam velocity through the steam generators, and reduce the probability of water carryover into the steam turbine. In response to a reduction in the number of steam generators in service, the pressure flow relationship is transferred from one characterization to another, and during such transfer, the analog system operates the steam turbine control valves to limit the rate of steam pressure decay as a function of steam flow.

摘要翻译： 联合循环发电厂包括两个燃气轮机，蒸汽轮机和具有模拟或手动备用的数字控制系统。 每个燃气轮机具有连接到公共集管的排气热回收蒸汽发生器，蒸汽由蒸汽发生器中的一个或两个供应以用于操作蒸汽轮机。 数字/模拟系统包括蒸气节气门压力限制控制，其保持作为蒸汽流量的函数的最小蒸汽节流压力，以限制通过蒸汽发生器的最大蒸汽速度，并且减少水携带到蒸汽涡轮机中的可能性。 响应于在使用中的蒸汽发生器的数量的减少，压力流动关系从一个表征转移到另一个表征，并且在这种转移期间，模拟系统操作蒸汽涡轮机控制阀以将蒸汽压力衰减的速率限制为 蒸汽流动功能。

公开(公告)号：US4005581A

公开(公告)日：1977-02-01

申请号：US543852

申请日：1975-01-24

申请人： Ola J. Aanstad

发明人： Ola J. Aanstad

IPC分类号： F01D17/24 ,  F01K13/02

CPC分类号： F01D17/24 ,  F05D2200/11

摘要： An electric power plant steam turbine system with digital computer control in which control signals are generated as a function of the actual steam conditions present in each turbine section and in a manner which maintains the sum of the instantaneous power developed in each turbine section equal to the total demand placed upon the turbine system.

摘要翻译： 一种具有数字计算机控制的电厂蒸汽轮机系统，其中根据存在于每个涡轮机部分中的实际蒸汽条件并以保持在每个涡轮机部分中产生的瞬时功率之和的总和产生控制信号等于 对涡轮机系统的总需求。

公开(公告)号：US4470948A

公开(公告)日：1984-09-11

申请号：US318233

申请日：1981-11-04

申请人： Ola J. Aanstad ,  Albert M. Sklencar

发明人： Ola J. Aanstad ,  Albert M. Sklencar

IPC分类号： G21C15/18 ,  G21D3/04 ,  G21D3/08 ,  G21C7/00

CPC分类号： G21D3/04 ,  Y02E30/40

摘要： Malfunction under water-solid conditions responsive either to increase in mass flow or increase in heat flow into the reactor coolant is suppressed. The power-actuable reactor-coolant relief valve is opened for increase in reactor-coolant mass influx if the rate of change of coolant pressure exceeds a setpoint during a predetermined interval, if, during this interval, the coolant temperature is less than a setpoint and if the level of the fluid in the pressurizer is above a predetermined setpoint (water-solid state). The interval is set to preclude opening of the relief valve for transients. The relief valve is opened responsive to increased influx of heat to the reactor coolant only while the coolant pump operates for a predetermined interval after it starts, if the level of the fluid in the pressurizer is above a setpoint, if either the difference between the temperature of the secondary fluid in the steam generator and the temperature of the coolant is above a predetermined setpoint or the difference between the temperature of the coolant and of the coolant in the loop seal is greater than a predetermined setpoint and if the coolant temperature is less than the setpoint.

摘要翻译： 抑制质量流量增加或进入反应堆冷却剂的热流增加的水固态条件下的故障被抑制。 如果在该间隔期间冷却剂温度小于设定值，则在预定间隔期间，如果冷却剂压力的变化率超过设定值，则可启动动力可启动的反应堆 - 冷却剂释放阀以增加反应堆 - 冷却剂质量流入 如果加压器中的流体的水平高于预定的设定点（水固态）。 间隔设置为排除溢流阀的瞬时开启。 如果加热器中的流体的水平高于设定值，则冷却剂泵在启动之后以预定的间隔运行时，响应于增加的热量向反应堆冷却剂的流入而打开溢流阀，如果温度 的蒸汽发生器中的次级流体，并且冷却剂的温度高于预定设定点，或者冷却剂和环形密封件中的冷却剂的温度之间的差异大于预定的设定点，并且如果冷却剂温度小于 设定值。

公开(公告)号：US3934419A

公开(公告)日：1976-01-27

申请号：US497608

申请日：1974-08-15

申请人： Ola J. Aanstad

发明人： Ola J. Aanstad

IPC分类号： F01D17/24 ,  F01D19/00 ,  F01K7/24 ,  F01K13/02 ,  F01K9/00

CPC分类号： F01D19/00 ,  F01D17/24 ,  F01K13/02 ,  F01K7/24

摘要： The stages of a turbine system are independently controlled to produce a desired system power output by monitoring and comparing the power characteristics of each stage to the desired power output. Flow through each of the stages is adjusted until the desired power output is generated, while any flow that is passing through bypass lines about each of the turbine stages is varied inversely to the variations in the flow through the turbine stages. Non-linearities occurring in the system are offset by appropriate modification of the control of each stage and by comparison of the power output of the system with the power requirements to direct continuing control until the power requirements are met.

摘要翻译： 通过监测和比较每个级的功率特性和期望的功率输出，独立地控制涡轮机系统的阶段以产生期望的系统功率输出。 调节流经每个级的流量，直到产生期望的功率输出，而通过绕涡轮机旁路的涡轮级的任何流量与通过涡轮级的流量的变化成反比。 在系统中出现的非线性通过对每个级的控制的适当修改以及通过将系统的功率输出与功率要求进行比较来抵消，以直接连续控制直到满足功率要求。