Patent application number | Description | Published |
20120274275 | METHOD AND DEVICE FOR CHARGING BATTERY - A method and device for charging a battery is provided. A charging device transmits a charging initiation request including the meter identifier and a charging identifier to a server, and receives a charging initiation response in response to the charging initiation request from the server. The charging device transmits a charging completion message indicating power consumed for the charging to the server upon completion of the charging, and receives charging information indicating billing information according to the charging of the battery from the server. | 11-01-2012 |
20120278215 | METHOD AND DEVICE FOR CHARGING BATTERY - A method and device of charging a battery is provided. A charging device transmits a charging initiation request including a charging identifier for identifying a user to an electric meter and receives a charging initiation response from the electricity meter. The charging device performs charging by connecting the charging station with the battery after receiving the charging initiation response. The charging device receives charging information indicating billing information according to the charging of the battery from the electricity meter. | 11-01-2012 |
20130033794 | OVERCURRENT PROTECTION APPARATUS FOR SECONDARY BATTERY, PROTECTION METHOD AND BATTERY PACK - An overcurrent protection apparatus for a secondary battery includes a main relay, an auxiliary relay connected in parallel with the main relay, a current limiting resistor connected in series with the auxiliary relay and a controller for detecting an overcurrent and protect the battery module. The controller turns on the main relay and turns off the auxiliary relay in a normal state where the battery module is recharged by the generator. When the overcurrent is detected, the controller turns on the auxiliary relay and turn off the main relay so that a limited current flows through the current limiting resistor. | 02-07-2013 |
20130073237 | SUBMERSION DETECTION CIRCUIT AND SUBMERSION DETECTION APPARATUS USING THE SAME - A submersion detection circuit includes a power source unit, a reference resistor connected between the power source unit and a voltage measurement node, a submersion unit configured to include a plurality of submersion measurement resistors connected in parallel to the voltage measurement node. Submersion contact terminals are formed at respective ends of the submersion measurement resistors, and a voltage measurement unit connected to the voltage measurement node and configured to measure voltage divided by the reference resistor and the submersion unit when the submersion contact terminals submerge. | 03-21-2013 |
20130124138 | CRASH DETECTION APPARATUS AND METHOD - A crash detection apparatus includes a crash detection unit and first, second, and third acceleration sensors which are installed at different positions of the object whose crash is to be detected. The crash detection unit calculates expectation acceleration of the third acceleration sensor based on measurement information obtained by the first acceleration sensor and the second acceleration sensor, compares the expectation acceleration with a measured acceleration measured by the third acceleration sensor, and detects whether a shape of the object has been deformed or not. | 05-16-2013 |
20130201587 | METHOD AND APPARATUS FOR DETECTING A FAULT OF A BATTERY PACK AND A POWER RELAY ASSEMBLY - There are disclosed a method and apparatus for detecting a fault of a battery pack and a power relay assembly. An apparatus for detecting a fault of a battery pack including a plurality of cells includes a pack voltage measurement unit for measuring a voltage of the battery pack, a cell voltage measurement unit for measuring a plurality of cell voltage for the plurality of cells, and a control unit for determining whether there is a fault at the battery pack based on the voltage of the battery pack and the plurality of cell voltages. A battery pack and a load connected to the battery pack can be protected by detecting whether there is a fault at the battery. | 08-08-2013 |
20140266045 | METHOD AND DEVICE FOR CHARGING BATTERY - A method and device for charging a battery is provided. A charging device transmits a charging initiation request including the meter identifier and a charging identifier to a server, and receives a charging initiation response M response to the charging initiation request from the server. The charging device transmits a charging completion message indicating power consumed for the charging to the server upon completion of the charging, and receives charging information indicating billing information according to the charging of the battery from the server. | 09-18-2014 |
Patent application number | Description | Published |
20130169257 | METHOD OF CONTROLLING MULTI LEVEL CONVERTER - A method of controlling a multilevel converter is provided. In the method of controlling a multilevel converter according to an embodiment, a sub-module having the maximum voltage and a sub-module having the minimum voltage respectively are extracted from among a plurality of sub-modules. An amount of state variation of each of the plurality of sub-modules is determined. When the amount of state variation is not determined to be 0, a direction of a current flowing through the plurality of sub-modules is detected. A subsequent state of at least one sub-module is determined according to at least one of the amount of the state variation and current direction. Subsequently an arrangement time for sub-module values can be efficiently reduced while the number of the sub-modules increases in the voltage balancing. | 07-04-2013 |
20130314111 | APPARATUS FOR TESTING THYRISTOR VALVE - An apparatus for testing a thyristor valve includes: a current source circuit that provides an electric current when a thyristor valve as a test target is turned on; a voltage source circuit that provides a reverse voltage or a forward voltage when the thyristor valve is turned off; and a first auxiliary valve provided between a connection point between the thyristor valve and the voltage source circuit and the current source circuit, and that insulates the current source circuit from the voltage source circuit to protect the current source circuit from a high voltage of the voltage source circuit. | 11-28-2013 |
20140321095 | HVDC VALVE TOWER - Disclosed is a HVDC valve tower. The HVDC valve tower includes cylindrical valve module loading part, a valve module loaded on the valve module loading part, and a crane disposed at a center of the valve module loading part to be rotatable. | 10-30-2014 |
20140354248 | METHOD FOR CONTROLLING MULTILEVEL CONVERTER - The present disclosure provides a method for controlling a multilevel converter, the method including, detecting modulation state values and current directions of sub-modules, and designating, by one sub-module, an average number of switching for each period of an output waveform, wherein the step of designating the average number of switching includes, grouping the sub-modules according to being in ON state or in OFF state, comparing the number of sub-modules in previous ON state and the number of sub-modules in OFF state to obtain a difference therebetween, and changing a state as much as the difference, comparing a sub-module of ON state in charged state and in discharged state with a sub-module of OFF state, and changing the compared states of sub-modules of ON state and OFF state. | 12-04-2014 |
20150102834 | SYNTHETIC TEST CIRCUIT FOR THYRISTOR VALVE IN HVDC TRANSMISSION - Provided is a synthetic test circuit for synthetic-testing a thyristor valve in high voltage direct current (HVDC). A resonant circuit applies forward DC current, a reverse DC voltage, and a forward DC voltage to synthetic-test the thyristor valve. A current generation unit generates DC current that is above a reference current value to supply the generated DC current into the resonant circuit. A voltage generates unit generating a DC voltage that is above a reference voltage value to supply the generated DC voltage into the resonant circuit. The resonant circuit includes a charging auxiliary valve for charging a gate driver of the thyristor valve. | 04-16-2015 |