Control apparatus for secondary battery and control method for secondary battery
First Claim
1. A control apparatus for a secondary battery, comprising:
- a request acquiring part that acquires a request for power release/absorption and a requested value for released/absorbed power;
a discharged/charged power calculator that calculates discharged/charged power of said secondary battery;
a command value outputting part that outputs a calculated value of the discharged/charged power calculated by said discharged/charged power calculator as a command value for discharged/charged power;
a bidirectional converter that controls discharge/charge of said secondary battery such that the discharged/charged power is the command value outputted by said command value outputting part;
a power consuming body that consumes power;
a limit-contents deciding part that decides contents of a limit for power supply to said power consuming body; and
a supply controller that controls power supply to said power consuming body in accordance with the decision made by said limit-contents deciding part, whereinsaid limit-contents deciding part sets the limit for power supply relatively higher when a request for power release is acquired by said request acquiring part, and sets the limit for power supply relatively lower when a request for power absorption is acquired by said request acquiring part.
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Accused Products
Abstract
Provided are a control apparatus for a secondary battery and a control method for a secondary battery, which suppress decreases in released power and absorbed power. When a power storage device is requested to release power, a limit for power supply to a power consuming body is set relatively higher, and when the power storage device is requested to absorb power, the limit for power supply to the power consuming body is set relatively lower. When the power storage device is requested to release power, a command value PD for released power is calculated by adding supplied power PS to a requested value PE for released power. When the power storage device is requested to absorb power, a command value PC for charged power is calculated by subtracting the supplied power PS from a requested value PA for absorbed power.
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Citations
14 Claims
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1. A control apparatus for a secondary battery, comprising:
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a request acquiring part that acquires a request for power release/absorption and a requested value for released/absorbed power; a discharged/charged power calculator that calculates discharged/charged power of said secondary battery; a command value outputting part that outputs a calculated value of the discharged/charged power calculated by said discharged/charged power calculator as a command value for discharged/charged power; a bidirectional converter that controls discharge/charge of said secondary battery such that the discharged/charged power is the command value outputted by said command value outputting part; a power consuming body that consumes power; a limit-contents deciding part that decides contents of a limit for power supply to said power consuming body; and a supply controller that controls power supply to said power consuming body in accordance with the decision made by said limit-contents deciding part, wherein said limit-contents deciding part sets the limit for power supply relatively higher when a request for power release is acquired by said request acquiring part, and sets the limit for power supply relatively lower when a request for power absorption is acquired by said request acquiring part. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A control method for a secondary battery, comprising:
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(a) a step of acquiring a request for power release/absorption and a requested value for released/absorbed power; (b) a step of calculating discharged/charged power of said secondary battery; (c) a step of outputting a calculated value of the discharged/charged power calculated in said step (b) as a command value for discharged/charged power; (d) a step of controlling discharge/charge of said secondary battery such that the discharged/charged power is the command value outputted in said step (c); (e) a step of deciding contents of a limit for power supply to the power consuming body; and (f) a step of controlling power supply to said power consuming body in accordance with the decision made in said step (e), wherein said step (e) sets the limit for power supply relatively higher when a request for power release is acquired in said step (a), and sets the limit for power supply relatively lower when a request for power absorption is acquired in said step (a). - View Dependent Claims (14)
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Specification