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1. 发明授权

US06294898B2 Method and apparatus for modifying limit and protection software in a synchronous generator exciter to match the capability of the turbine-generator 失效
公开(公告)号：US06294898B2
公开(公告)日：2001-09-25
申请号：US09759268
申请日：2001-01-16
申请人： Rodney A. Lawson , William R. Pearson , James E. Curran
发明人： Rodney A. Lawson , William R. Pearson , James E. Curran
IPC分类号： H02P910
CPC分类号： H02H7/065 , H02P9/10
摘要： A method and apparatus for compensating, consistent with variations in cooling conditions, protection and limit functions of a generator. Limits of the capability curve of the generator, including the overexcited region, underexcited region and region limited by stator current heating, are modified in response to changes in coolant pressure or temperature depending on the type of generator being compensated. Feedback signals and setpoints being provided to fixed protection and limit functions are intercepted and modified in accordance with the relationship between generator rated values and generator performance in view of altered coolant conditions. Protection and limit functions are automatically coordinated. As a result, overall generator performance is improved.

2. 发明授权

US06204642B1 Method and apparatus for modifying limit and protection software in a synchronous generator exciter to match the capability of the turbine-generator 有权
标题翻译：用于修改同步发电机励磁机中的极限和保护软件以匹配涡轮发电机的能力的方法和装置
公开(公告)号：US06204642B1
公开(公告)日：2001-03-20
申请号：US09369181
申请日：1999-08-06
申请人： Rodney A. Lawson , William R. Pearson , James E. Curran
发明人： Rodney A. Lawson , William R. Pearson , James E. Curran
IPC分类号： H02P910
CPC分类号： H02H7/065 , H02P9/10
摘要： A method and apparatus for compensating, consistent with variations in cooling conditions, protection and limit functions of a generator. Limits of the capability curve of the generator, including the overexcited region, underexcited region and region limited by stator current heating, are modified in response to changes in coolant pressure or temperature depending on the type of generator being compensated. Feedback signals and setpoints being provided to fixed protection and limit functions are intercepted and modified in accordance with the relationship between generator rated values and generator performance in view of altered coolant conditions. Protection and limit functions are automatically coordinated. As a result, overall generator performance is improved.
摘要翻译：一种用于补偿的方法和装置，与冷却条件的变化，发电机的保护和限制功能一致。发电机的能力曲线的限制，包括过度激励区域，未激励区域和受定子电流加热限制的区域，根据所补偿发电机的类型，对冷却剂压力或温度的变化进行修改。根据变化的冷却液条件，根据发电机额定值和发电机性能之间的关系，对固定保护和限位功能提供的反馈信号和设定值进行了截断和修改。自动协调保护和限制功能。因此，整体发电机性能得到改善。

3. 发明授权

US5091690A Method for monitoring operational condition of circuit components 失效
标题翻译：监控电路元件运行状态的方法
公开(公告)号：US5091690A
公开(公告)日：1992-02-25
申请号：US614177
申请日：1990-11-15
申请人： Michael J. D'Antonio , Irving A. Gibbs , Lawrence J. Lane , Rodney A. Lawson
发明人： Michael J. D'Antonio , Irving A. Gibbs , Lawrence J. Lane , Rodney A. Lawson
IPC分类号： G08B21/20 , G08B29/02 , H03F1/52
CPC分类号： G08B21/185 , G08B29/02 , H03F1/52
摘要： A method and apparatus for enabling the continuous monitoring of the operational state of circuit components includes a scheme for generating a plurality of voltage signals representing neutral-to-line voltages of the system and adding to each of those signals a second signal, each second signal being identical. This addition is done vectorially to yield a modified signal. A representation of the modified signal as acted upon by the circuit to be monitored is compared with a representation of the neutral-to-line voltage signal to yield an output signal representative of the operational state of the circuit components.
摘要翻译：一种能够连续监测电路部件的运行状态的方法和装置包括一种用于产生表示系统的中性线对电压的多个电压信号的方案，并将这些信号中的每个信号加到第二信号中，每个第二信号相同这个加法是以向量方式进行的，以产生修正的信号。将要被监视的电路作用的修改信号的表示与中性线电压信号的表示进行比较，以产生表示电路部件的操作状态的输出信号。

4. 发明授权

US4999564A Power system stabilizer system having improved integrity checking scheme 失效
标题翻译：电力系统稳定系统具有改进的完整性检查方案
公开(公告)号：US4999564A
公开(公告)日：1991-03-12
申请号：US420423
申请日：1989-10-12
申请人： Michael J. D'Antonio , Irving A. Gibbs , Lawrence J. Lane , Rodney A. Lawson
发明人： Michael J. D'Antonio , Irving A. Gibbs , Lawrence J. Lane , Rodney A. Lawson
IPC分类号： H02J3/38 , H02J3/24 , H02P9/10
CPC分类号： H02P9/105 , H02J3/24
摘要： In a system for stabilizing the operation of an electrical generator connected to a power distribution network, which system includes a power system stabilizer operating through a modulator circuit to control generator oscillations, there is included a scheme for testing the integrity of the power system stabilizer and modulator circuit which involves the application of a test signal having known values to the power system stabilizer. This test signal propagates through the circuitry and the resultant output is demodulated to be compared with a stored representation of the test signal to thus yield outputs representing the gain and phase shift of the power system stabilizer and modulator circuit in combination.
摘要翻译：在用于稳定连接到配电网络的发电机的操作的系统中，该系统包括通过调制器电路操作以控制发电机振荡器的电力系统稳定器，其包括用于测试电力系统稳定器的完整性的方案，调制器电路涉及向电力系统稳定器施加具有已知值的测试信号。该测试信号通过电路传播，并且所得到的输出被解调以与存储的测试信号的表示进行比较，由此产生表示电力系统稳定器和调制器电路的增益和相移的组合。

5. 发明授权

US4741023A On-line test and diagnostic system for power system stabilizer 失效
标题翻译：电力系统稳定器在线测试与诊断系统
公开(公告)号：US4741023A
公开(公告)日：1988-04-26
申请号：US945931
申请日：1986-12-23
申请人： Rodney A. Lawson
发明人： Rodney A. Lawson
IPC分类号： G01R27/28 , G01R31/00 , G01R31/34 , H02H7/06 , H02J3/38 , H02P9/00
CPC分类号： G01R31/343 , G01R27/28
摘要： A method and apparatus for performing a complete functional test of a power system stabilizer connected to the excitation system of an electrical power generator is disclosed. Two tests are performed, one an on-line modulation test, and the second a system response test. In the on-line modulation test, an internal 0.5 hertz sine wave is generated by a microprocessor which is applied as a frequency modulating input to the continuous wave frequency transducer included in the power system stabilizer. Such a signal acts to stimulate intertie mode oscillations and provide a means of determining the gain and phase shift characteristic of the power system stabilizer. In the second test, a voltage step type of signal is generated and applied to the output of the power system stabilizer where it is then coupled to the excitation system of the generator. This has the effect of stimulating local mode oscillations. The generator response to the local mode oscillation is sensed to determine system damping. Both tests are adapted to verify the operational status of the power system stabilizer and the adequacy of its adjustments. Furthermore, a local terminal and a telephone modem are connected to a communication port associated with the microprocessor for enabling the test to be initiated and the results evaluated either locally or remotely.
摘要翻译：公开了一种用于执行与发电机的励磁系统相连的电力系统稳定器的完整功能测试的方法和装置。执行两个测试，一个在线调制测试，第二个是系统响应测试。在线调制测试中，内部的0.5赫兹正弦波由微处理器产生，该微处理器作为频率调制输入端被施加到包括在电力系统稳定器中的连续波频率换能器。这种信号用于刺激间歇模式振荡，并提供确定电力系统稳定器的增益和相移特性的手段。在第二次测试中，产生电压阶跃类型的信号并将其施加到电力系统稳定器的输出端，然后耦合到发电机的励磁系统。这具有刺激局部模式振荡的作用。感测发生器对局部模式振荡的响应以确定系统阻尼。这两个测试都适用于验证电力系统稳定器的运行状态及其调整是否适当。此外，本地终端和电话调制解调器连接到与微处理器相关联的通信端口，用于启动测试，并且本地或远程地评估结果。

6. 发明授权

US4996519A Method and apparatus for monitoring an amplifier 失效
标题翻译：用于监视放大器的方法和装置
公开(公告)号：US4996519A
公开(公告)日：1991-02-26
申请号：US411977
申请日：1989-09-25
申请人： Michael J. D'Antonio , Irving A. Gibbs , Lawrence J. Lane , Rodney A. Lawson
发明人： Michael J. D'Antonio , Irving A. Gibbs , Lawrence J. Lane , Rodney A. Lawson
IPC分类号： G01R31/00 , G05F1/10 , G08B21/20 , G08B29/02 , H02J3/24 , H02P9/00 , H02P9/14 , H03F1/52
CPC分类号： G08B21/185 , G08B29/02 , H03F1/52
摘要： A method and apparatus for enabling the continuous monitoring of the operational state of circuit components includes a scheme for generating a plurality of voltage signals representing neutral-to-line voltages of the system and adding to each of those signals a second signal, each second signal being identical. This addition is done vectorially to yield a modified signal. A representation of the modified signal as acted upon by the circuit to be monitored is compared with a representation of the neutral-to-line voltage signal to yield an output signal representative of the operational state of the circuit components.
摘要翻译：一种能够连续监测电路部件的运行状态的方法和装置包括一种用于产生表示系统的中性线对电压的多个电压信号的方案，并将这些信号中的每个信号加到第二信号中，每个第二信号相同这个加法是以向量方式进行的，以产生修改的信号。将要被监视的电路作用的修改信号的表示与中性线电压信号的表示进行比较，以产生表示电路部件的操作状态的输出信号。

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