Reserve time calculator, method of calculating a reserve time and battery plant employing the same
First Claim
1. A reserve time calculator for use with multiple parallel-connected battery string types, comprising:
- a load current estimator configured to employ coefficients corresponding to discharge characteristics of at least two of said multiple parallel-connected battery string types and a reserve time estimate to provide a load current estimate; and
a load current adjustor coupled to said load current estimator and configured to adjust said load current estimate to within an acceptable error of an actual load current and provide an adjusted reserve time based thereon.
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Abstract
The present invention provides a reserve time calculator for use with multiple parallel-connected battery string types. In one embodiment, the reserve time calculator includes a load current estimator configured to employ coefficients corresponding to discharge characteristics of at least two of the multiple parallel-connected battery string types and a reserve time estimate to provide a load current estimate. Additionally, the reserve time calculator also includes a load current adjustor coupled to the load current estimator and configured to adjust the load current estimate to within an acceptable error of an actual load current and provide an adjusted reserve time based thereon.
22 Citations
21 Claims
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1. A reserve time calculator for use with multiple parallel-connected battery string types, comprising:
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a load current estimator configured to employ coefficients corresponding to discharge characteristics of at least two of said multiple parallel-connected battery string types and a reserve time estimate to provide a load current estimate; and
a load current adjustor coupled to said load current estimator and configured to adjust said load current estimate to within an acceptable error of an actual load current and provide an adjusted reserve time based thereon. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of calculating a reserve time for use with multiple parallel-connected battery string types, comprising:
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employing coefficients corresponding to discharge characteristics of at least two of said multiple parallel-connected battery string types and a reserve time estimate to provide a load current estimate;
adjusting said load current estimate to within an acceptable error of an actual load current; and
providing an adjusted reserve time based thereon. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A battery plant, comprising:
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a load that has an actual load current;
a first parallel-connected battery string type coupled to said load that has a first ampere-hour capability;
a second parallel-connected battery string type coupled to said load that has a second ampere-hour capability; and
a reserve time calculator coupled to said first and second parallel-connected battery string types, including;
a load current estimator that employs coefficients corresponding to discharge characteristics of said first and second parallel-connected battery string types and a reserve time estimate to provide a load current estimate; and
a load current adjustor, coupled to said load current estimator, that adjusts said load current estimate to within an acceptable error of said actual load current and provides an adjusted reserve time based thereon. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification