Apparatus and method for predictive control of a power generation system
First Claim
1. A method for controlling a power system control area according to a control performance standard, wherein operation of the control area determines area control parameter values and control performance standard values, the method comprising:
- (a) determining a control performance standard compliance target;
(b) determining a statistical measure of control performance standard values from a beginning of a compliance period to a time t at which the statistical measure is determined;
(c) determining an area control parameter target responsive to the statistical measure;
(d) determining a relationship between the area control parameter values and the area control parameter target over a prior time interval;
(e) determining an area control parameter correction responsive to the relationship determined at a step (d);
(f) controlling the power system control area responsive to the area control parameter correction; and
(g) periodically repeating steps (b)-(f) until an end of the compliance period.
4 Assignments
0 Petitions
Accused Products
Abstract
A method for controlling a power system control area according to a first and a second control performance standard, wherein operation of the control area determines area control parameter values. The method comprises (a) determining a first compliance target for the first performance standard and a second compliance target for the second performance standard (100/200); (b) determining a first performance standard statistical measure responsive to the control area parameter values from a beginning of a first compliance period to a time at which the first average is determined (108); (c) determining a second performance standard statistical measure responsive to the control area parameter values from a beginning of a second compliance period to a time at which the second average is determined; (d) determining a first area control parameter target responsive to the first performance standard statistical measure (116); (e) determining a second area control parameter target responsive to the second performance standard statistical measure (204); (f) determining a first area control parameter correction responsive to the first area control parameter target and the area control parameter values (150); (g) determining a second area control parameter correction responsive to the second area control parameter target and the area control parameter values (228) and (h) controlling the power system according to one or both of the first and the second area control parameter corrections (154/232).
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Citations
53 Claims
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1. A method for controlling a power system control area according to a control performance standard, wherein operation of the control area determines area control parameter values and control performance standard values, the method comprising:
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(a) determining a control performance standard compliance target; (b) determining a statistical measure of control performance standard values from a beginning of a compliance period to a time t at which the statistical measure is determined; (c) determining an area control parameter target responsive to the statistical measure; (d) determining a relationship between the area control parameter values and the area control parameter target over a prior time interval; (e) determining an area control parameter correction responsive to the relationship determined at a step (d); (f) controlling the power system control area responsive to the area control parameter correction; and (g) periodically repeating steps (b)-(f) until an end of the compliance period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method for controlling a power system control area during a control cycle j of a control interval i according to a control performance standard, wherein operation of the control area determines area control parameter values and control performance standard values, the method comprising:
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(a) determining a control performance standard compliance target; (b) determining a statistical measure of the control performance standard responsive to the control performance standard values from a beginning of a compliance period to a time t at which the average is determined; (c) determining an area control parameter upper target and lower target responsive to the statistical measure; (d) determining a first deviation of each area control parameter value from the upper target and a second deviation of each area control parameter value from the lower target, from the beginning of the control interval i to a control cycle j−
1;(e) summing the first deviations to produce a first sum and summing the second deviations to produce a second sum; (f) determining an average area control parameter responsive to the area control parameter values from the beginning of the control interval i to the control cycle j−
1;(g) determining a relationship between the average area control parameter and the upper target; (h) determining a relationship between the average area control parameter and the lower target; and (i) determining a correction amount to be applied to the area control parameter for the control cycle j, the correction amount responsive to the relationships determined at the steps (g) and (h) and the first and the second sums or determining that a correction amount is not required. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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42. A method for controlling a power system control area according to a first and a second control performance standard, wherein operation of the control area determines area control parameter values, the method comprising:
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(a) determining a first compliance target for the first performance standard and a second compliance target for the second performance standard; (b) determining a first performance standard statistical measure responsive to the control area parameter values from a beginning of a first compliance period to a time at which the first average is determined; (c) determining a second performance standard statistical measure responsive to the control area parameter values from a beginning of a second compliance period to a time at which the second average is determined; (d) determining a first area control parameter target responsive to the first performance standard statistical measure; (e) determining a second area control parameter target responsive to the second performance standard statistical measure; (f) determining a first area control parameter correction responsive to the first area control parameter target and the area control parameter values; (g) determining a second area control parameter correction responsive to the second area control parameter target and the area control parameter values; and (h) controlling the power system according to one or both of the first and the second area control parameter corrections. - View Dependent Claims (43, 44, 45)
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46. An apparatus for controlling a power system control area according to a first and a second control performance standard, the apparatus comprising:
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a data base for storing area control parameter values determined from operational parameters of the power system control area a first module for determining a first measure of a first control performance standard responsive to the operational parameters from a beginning of a first compliance period to the time at which the first measure is determined; a second module for determining a second measure of a second control performance standard responsive to the operational parameters from a beginning of a second compliance period to the time at which the second measure is determined; a third module for determining a first area control parameter target responsive to the first measure and to a compliance target for the first control performance standard, and for determining a second area control parameter target responsive to the second measure and to a compliance target for the second control performance standard; a fourth module for determining a first area control parameter correction responsive to a first area control parameter target and the area control parameter values and for determining a second area control parameter correction responsive to the second area control parameter target and the area control parameter values; and a fifth module for controlling the power system control area according to one or both of the first and the second area control parameter corrections. - View Dependent Claims (47, 48, 49, 50, 51)
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52. A computer program product for controlling a power system control area during a control cycle j of a control interval i according to a control performance standard, wherein operation of the control area determines area control parameter values and control performance standard values, the computer program product comprising:
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a computer usable medium having computer readable program code modules embodied in the medium for controlling the power system control area; a computer readable first program code module for determining a control performance standard compliance target; a computer readable second code module for determining a statistical measure of the control performance standard responsive to the control performance standard values from a beginning of a compliance period to a time t at which the statistical measure is determined; a computer readable third program code module for determining an area control parameter upper target and lower target responsive to the statistical measure; a computer readable fourth program code module for determining a first deviation of each area control parameter value from the upper target and a second deviation of each area control parameter value from the lower target, from the beginning of the control interval i to a control cycle j−
1;a computer readable fifth program code module for summing the first deviations to produce a first sum and summing the second deviations to produce a second sum; a computer readable sixth program code module for determining an average area control parameter responsive to the area control parameter values from the beginning of the control interval i to the control cycle j−
1;a computer readable seventh program code module for determining a relationship between the average area control parameter and the upper target; a computer readable eighth program code module for determining a relationship between the average area control parameter and the lower target; and a computer readable ninth program code module for determining a correction amount to be applied to the area control parameter for the control cycle j, the correction amount responsive to the relationships determined by the seventh and eighth program code modules and the first and the second sums or determining that a correction amount is not required.
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53. A computer program product for controlling a power system control area according to a first and a second control performance standard, wherein operation of the control area determines area control parameter values, the computer program product comprising:
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a computer usable medium having computer readable program code modules embodied in the medium for controlling the power system control area; a computer readable first program code module for determining a first compliance target for the first performance standard and a second compliance target for the second performance standard; a computer readable second program code module for determining a first performance standard statistical measure responsive to the control area parameter values from a beginning of a first compliance period to a time at which the first average is determined; a computer readable third program code module for determining a second performance standard statistical measure responsive to the control area parameter values from a beginning of a second compliance period to a time at which the second average is determined; a computer readable fourth program code module for determining a first area control parameter target responsive to the first performance standard statistical measure; a computer readable fifth program code module for determining a second area control parameter target responsive to the second performance standard statistical measure; a computer readable sixth program code module for determining a first area control parameter correction responsive to the first area control parameter target and the area control parameter values; a computer readable seventh program code module for determining a second area control parameter correction responsive to the second area control parameter target and the area control parameter values; and a computer readable eighth program code module for controlling the power system according to one or both of the first and the second area control parameter corrections.
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Specification