Abstract: In a turbine apparatus comprising a runner rotatable to be rotationally driven by a water, a gain of a derivative calculation element generating a derivative component of a control signal for controlling a flow rate of the water which derivative component is to be applied to the derivative calculation element and the integration calculation element by performing differentiation on a difference between an actual rotational speed and a desired rotational speed of the runner with respect to a time proceeding has a value sufficiently increased to converge a value of the control signal toward a desired value in accordance with the time proceeding in S-characteristic portion.

Abstract: An operation monitoring unit 11 for acquiring process data from sensors 10 installed to a gas turbine and operation information of the gas turbine; communication units 12, 14 for transmitting each of said two kinds of data on the gas turbine acquired in the operation monitoring unit 11; an analysis server 16 which calculates values of equivalent operating time using each of the two kinds of data obtained through the communication units 12, 14, the value of equivalent operating time evaluating a degree of damage of a diagnosed position for each of a plurality of degradation-and-damage modes, and calculates a value of whole equivalent operating time by adding the values of equivalent operating time for the individual degradation-and-damage modes; and a facility management unit 15 client-server systemized using the analysis server 16 and a WWW browser 20 or WWW server 19 are provided.

Abstract: A vacuum pump (10) includes a control device (20) for processing operational data and operational instructions. Further, the vacuum pump (10) includes a touch screen (40) serving as display for displaying the operational data callable from the control device (20) and as input for inputting operational instructions into the control device (20). The touch screen (40) includes a display panel (42) and a key panel (44) as display and the input, respectively, and is connected with the control device (20) via a data line (36). By combining the display and the input in a single device, namely the touch screen, the trouble for display and data input is reduced.

Abstract: A method for operating a power distribution system is provided. The power distribution system includes a plurality of components, and at least one node electronics unit coupled to at least one control processing unit. The method includes associating a unique identifier with at least one component class of the power distribution system, identifying each component based on the identifier, determining a specification associated with each identifier, and operating at least one of the node electronics unit and the control processing unit based on the determined specification.

Abstract: A method of operating a turboalternator when the turbine engine speed is between synchronous speed and self-sustaining speed.

Abstract: A microprocessor-based control system for a gas turbine electrical powerplant the microprocessor-based control system controls the startup, operation, and shutdown of the gas turbine electric powerplant. The microprocessor-based control system of the present invention dispenses with the need to utilize relays, timers, or other control hardware. Rather, the microprocessor-based control system employs software that replaces the control hardware, and directly reads the inputs, calculates the control actions, and writes the outputs. The microprocessor-based control system is also in electrical communication with an overspeed control system, provided to ensure that a runaway condition of the gas turbine engine does not occur should the gas turbine engine become disconnected from the speed reducer (gearbox) or generator. Sensors are used to monitor multiple operating conditions of the powerplant.

Abstract: A process control system in a multi-input/output coordinate control system for executing coordinate control of a main input. The process control system sets an operating point set value for an operating point of an n-th control output, generates the n-th control output to control the main input based on the n-th control output, and generates an m-th control output to control the operating point of the n-th control output so that the operating point of the n-th control output becomes equal to the operating point set value, thereby to allow the n-th control output of fast response to operate at the operating point set value by controlling the main input.

Abstract: The state of combustion oscillation in the combustor of a turbine of a power plant is monitored from a remote monitoring center. To monitor the combustion oscillation state, combustion oscillation data on the combustor is separated into two types of data: the first data obtained on a real-time basis, and the second data including representative values within a predetermined period of time obtained from the first data. In the normal state, a low-speed communications mode is used to send the second data, which is monitored at the monitoring center. If an abnormal state is predicted as a result of monitoring the second data, the high-speed communications mode is used to send the first data, and more detailed combustion oscillation data is monitored at the monitoring center. When a critical state is predicted, an instruction is sent to the local site to switch the operation mode over to the low load operation mode.

Abstract: A system for monitoring maintenance information in a hydroelectric power generation facility comprises sensors coupled to a controller. The sensors detect actual levels of operating parameters for a desired operating period at an operating condition. The detected parameters include a stressor capable of affecting a life span, or mean time between failures, of the turbine or one of its components. The controller determines the amount of the life span used up. A method for monitoring maintenance information in a power generation facility includes the steps of monitoring levels of operating parameters including a stressor for a desired operating period at an operating condition. The stressor affects the life span of the turbine or one of its components, and the amount of the life span used up over the operating period is calculated.

Abstract: The present invention provides a system and method for a datamining service vendor to provide subscribing power customers with electrical consumption data services. The system and method provide a mechanism by which electrical consumption is measured at the point of consumption over incremental periods of time. Customers can subscribe to a datamining service vendor which monitors and collects customer electrical consumption data at each addressed location within the customer's electrical network and provides the customer with a detailed report of power consumption statistics and trends. This allows the customer to make informed consumption choices resulting in cost savings to the customer and conservation of power generation resources.

Abstract: A genset controller that is configurable for controlling a variety of types of gensets, as well as a method of configuring a genset controller for controlling a genset, are disclosed. The genset controller includes a memory for storing a plurality of software routines, a personality profile data set, and a user-settable data set, and further includes a processor coupled to the memory for executing the software routines and reading data from the personality profile data set and the user settable data set to control the genset. The genset controller additionally includes an input port coupled to the memory for enabling changes to the personality profile data set and the user-settable data set to be downloaded into the memory. The personality profile data set and the user-settable data set include data that configures the genset controller for operation with a particular genset.

Abstract: For each component which is used at a high in-service temperature for a long period, its creep damage degree is approximated by a relational expression containing the Larson-Miller parameter. The creep damage degree is estimated by an approximation expression obtained by determining constants for each component. The creep damage degree is subjected to Weibull statistical analysis to estimate the creep damage degree probabilistically. Also, the thermal fatigue and damage degree obtained by an approximation expression is likewise subjected to Weibull statistical analysis to estimate the thermal fatigue and damage degree probabilistically. Therefore, the probabilistically estimated creep damage degree and the probabilistically estimated thermal fatigue and damage degree allows the life of each component subjected to a high in-service temperature to be assessed precisely and quickly.

Abstract: Quick recovery or recovery support of a faulty power generating facility by real time diagnoses such as facility failure diagnosis, supervision for failure symptoms, facility diagnosis by evaluation of performance using databases between said power generating facilities and an operation control system.