System and method for controlling the performance of a power generating system
AssigneeSiemens Energy, Inc.
InventorsDingguo Chen, Haso Peljto
Life of this patent
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Abstract
A method and system for energy management in a power system. Target performance standards are calculated and used to measure performance and to comply with regulatory performance standards. The target performance standards are based on probability theory and are used to control power generation. The amount of corrective power necessary is based on the calculated target performance standards and the deviations of current performance values from the target standards.
Claims21
A computer-implemented method of energy management in a power system comprising the steps of:
- calculating, via a processor during each of a plurality of monitoring intervals dividing a time period, a violations ratio of allowable performance violations of a control performance standard related to load balancing, wherein the violations ratio comprises an allowable number of violations remaining over the time period;
- equating by the processor the violations ratio with a corresponding probability associated with a performance probability distribution curve representing a probable occurrence of Area Control Error values when complying with the control performance standard;
- determining by the processor a corresponding performance target associated with the corresponding probability;
- and
- comparing the performance target with current values to determine a power correction for use as a performance guide for load balancing in the management of the power system.
A system for energy management in a power system comprising:
- a processor for executing energy management software;
- memory connected to the processor for storing performance data;
- means for storing data connected to the processor;
- and
- processor executable energy management software comprising a monitoring and control module capable of:
- calculating, during each of a plurality of monitoring intervals dividing a time period, a violations ratio of allowable performance violations of a control performance standard related to load balancing, wherein the violations ratio comprises an allowable number of violations remaining over the time period;
- equating the violations ratio with a corresponding probability associated with a performance probability distribution curve representing a probable occurrence of Area Control Error values when complying with the control performance standard;
- determining a corresponding performance target associated with the corresponding probability;
- and
- comparing the performance target with current values to determine a power correction for use as a performance guide for load balancing in the management of the power system.
A tangible computer-readable medium having stored thereon instructions which when executed by a processor, cause the processor to perform the steps of:
- calculating, during each of a plurality of monitoring intervals dividing a time period, a violations ratio of allowable performance violations of a control performance standard related to load balancing, wherein the violations ratio comprises an allowable number of violations remaining over the time period;
- equating the violations ratio with a corresponding probability associated with a performance probability distribution curve representing a probable occurrence of Area Control Error values when complying with the control performance standard;
- determining a corresponding performance target associated with the corresponding probability;
- and
- comparing the performance target with current values to determine a power correction for use as a performance guide for load balancing in energy management of the power system.
Dependencies are inferred from the claim text.