APPARATUS, SYSTEM, AND METHOD OF PREVENTING BATTERY RACK DAMAGE BY MEASURING VOLTAGE
First Claim
1. An apparatus for preventing a battery rack from being damaged by measuring a voltage, comprising:
- a voltage measuring unit configured to measure a voltage value of a battery rack including a plurality of battery modules;
a comparing unit configured to compare whether the voltage value measured by the voltage measuring unit is greater or smaller than a predetermined voltage limit value; and
a relay controller configured to control operation states of a precharge relay and a main relay based on the comparison result value obtained by the comparing unit before the operation state of the main relay is changed from an off state to an on state after the operation state of the precharge relay is changed to the on state,wherein the apparatus for preventing a battery rack from being damaged by measuring a voltage is provided in one or more battery racks each, and individually performs, on a corresponding battery rack, a process of measuring a voltage value of the corresponding battery rack, comparing the measured voltage value with a predetermined voltage limit value, and controlling operation states of a precharge relay and a main relay of the corresponding battery rack according to a result of the comparison.
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Accused Products
Abstract
The present invention relates to an apparatus, a system, and a method of preventing a battery rack from being damaged by measuring a voltage, which, when a battery module is abnormally connected with a relay in some battery racks in installing the relay, which conducts or blocks a current flowing in the battery rack including a plurality of battery modules, so that a voltage smaller than a predetermined voltage limit value is applied to the battery rack, prevent a short-circuit phenomenon, by controlling an operation state of the relay before the battery rack and the relay form a short circuit.
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Citations
16 Claims
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1. An apparatus for preventing a battery rack from being damaged by measuring a voltage, comprising:
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a voltage measuring unit configured to measure a voltage value of a battery rack including a plurality of battery modules; a comparing unit configured to compare whether the voltage value measured by the voltage measuring unit is greater or smaller than a predetermined voltage limit value; and a relay controller configured to control operation states of a precharge relay and a main relay based on the comparison result value obtained by the comparing unit before the operation state of the main relay is changed from an off state to an on state after the operation state of the precharge relay is changed to the on state, wherein the apparatus for preventing a battery rack from being damaged by measuring a voltage is provided in one or more battery racks each, and individually performs, on a corresponding battery rack, a process of measuring a voltage value of the corresponding battery rack, comparing the measured voltage value with a predetermined voltage limit value, and controlling operation states of a precharge relay and a main relay of the corresponding battery rack according to a result of the comparison. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system for preventing a battery rack from being damaged by measuring a voltage, comprising:
- an apparatus for preventing a battery rack from being damaged by measuring a voltage in one or more battery racks each, the apparatus comprising;
a voltage measuring unit configured to measure a voltage value of a battery rack including a plurality of battery modules; a comparing unit configured to compare whether the voltage value measured by the voltage measuring unit is greater or smaller than a predetermined voltage limit value; and a relay controller configured to control operation states of a precharge relay and a main relay based on the comparison result value obtained by the comparing unit before the operation state of the main relay is changed from an off state to an on state after the operation state of the precharge relay is changed to the on state, wherein the system for preventing a battery rack from being damaged by measuring a voltage individually performs, on a corresponding battery rack, a process of measuring a voltage value of the corresponding battery rack, comparing the measured voltage value with a predetermined voltage limit value, and controlling operation states of a precharge relay and a main relay of the corresponding battery rack according to a result of the comparison. - View Dependent Claims (8, 9, 10, 11, 12)
- an apparatus for preventing a battery rack from being damaged by measuring a voltage in one or more battery racks each, the apparatus comprising;
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13. A method of preventing a battery rack from being damaged by measuring a voltage, comprising:
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(a) providing an apparatus for preventing a battery rack from being damaged by measuring a voltage, which includes a voltage measuring unit, a comparing unit, and a relay controller, in one or more battery racks each; and (b) individually performing, by the apparatus, on a corresponding battery rack, a process of measuring a voltage value of the corresponding battery rack, comparing the measured voltage value with a predetermined voltage limit value, and controlling operation states of a precharge relay and a main relay of the corresponding battery rack according to a result of the comparison, wherein (b) includes; (b1) measuring, by the voltage measuring unit, a voltage value of the battery rack including a plurality of battery modules; (b2) comparing, by the comparing unit, whether the voltage value measured by the voltage measuring unit is greater or smaller than a predetermined voltage limit value; and (b3) controlling, by the relay controller, the operation states of the precharge relay and the main relay based on the comparison result value obtained by the comparing unit before the operation state of the main relay is changed from an off state to an on state after the operation state of the precharge relay is changed to the on state. - View Dependent Claims (14, 15, 16)
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Specification