A power storage system includes n number of slave BMSs for transmitting data associated with an electric characteristic value of battery cells, included in battery modules managed by the slave BMSs, through slave communication networks; m number of master BMSs for primarily processing the data assoc
A power storage system includes n number of slave BMSs for transmitting data associated with an electric characteristic value of battery cells, included in battery modules managed by the slave BMSs, through slave communication networks; m number of master BMSs for primarily processing the data associated with an electric characteristic value of battery cells, transmitted through the slave communication networks, and transmitting the primarily processed data through a master communication network; and a super master BMS for secondarily processing the data transmitted through the master communication network. Since the data transmitted from each slave BMS are processed in a master BMSs, the amount of data loaded on a communication line may decrease. Therefore, even though the capacity of a power storage system increases, rapid data collection and data control may be achieved.
대표청구항▼
1. A power storage system comprising: n number of slave Battery Management Systems for transmitting data associated with an electric characteristic value of battery cells, included in battery modules managed by the slave Battery Management Systems, through slave communication networks;m number of ma
1. A power storage system comprising: n number of slave Battery Management Systems for transmitting data associated with an electric characteristic value of battery cells, included in battery modules managed by the slave Battery Management Systems, through slave communication networks;m number of master Battery Management Systems for primarily processing the data associated with an electric characteristic value of battery cells, transmitted through the slave communication networks, to reduce the amount of data and transmitting the reduced amount of primarily processed data through master communication networks;the slave communication networks allowing communication (1) between members of a subset of slave Battery Management Systems and (2) between members of a subset of slave Battery Management Systems and one of the master Battery Management Systems, the master Battery Management System receiving data only from members of the subset of slave Battery Management Systems;a super master Battery Management System for secondarily processing the data transmitted through the master communication networks; andan external monitoring device for receiving the secondarily processed data from the super master Battery Management System and transmitting a control signal, generated based on the secondarily processed data, to the super master Battery Management System,wherein the primary and secondary processing of data is one of calculating an average, standard deviation, a maximum value and a minimum value. 2. The power storage system according to claim 1, wherein the super master Battery Management System outputs a master control signal through the master communication network to control the master Battery Management Systems based on the control signal received from the external monitoring device. 3. The power storage system according to claim 2, wherein the master Battery Management Systems output slave control signals through the slave communication networks to control the slave Battery Management Systems based on the master control signal received from the super master Battery Management System. 4. A method for controlling a power storage system having n number of slave Battery Management Systems, m number of master Battery Management Systems and a super master Battery Management System, the method comprising: allowing the n number of slave Battery Management Systems to transmit data associated with an electric characteristic value of battery cells, included in battery modules managed by the slave Battery Management Systems, through slave communication networks;allowing the m number of master Battery Management Systems to primarily process the data associated with an electric characteristic value of battery cells, transmitted through the slave communication networks, to reduce the amount of data and to transmit the reduced amount of processed data through master communication networks;allowing communication (1) between members of a subset of slave Battery Management Systems and (2) between members of the subset of slave Battery Management Systems through the slave communication networks and one of the master Battery Management Systems, the master Battery Management System receiving data only from members of the subset of slave Battery Management Systems;allowing the super master Battery Management System to secondarily process the data transmitted through the master communication networks;allowing the super master Battery Management System to transmit the secondarily processed data to an external monitoring device; andallowing the super master Battery Management System to receive a control signal, generated based on the secondarily processed data, from the external monitoring device,wherein the primary and secondary processing of data is one of calculating an average, standard deviation, a maximum value and a minimum value. 5. The method for controlling a power storage system according to claim 4, further comprising: allowing the super master Battery Management System to output a master control signal through the master communication network to control the master Battery Management Systems based on the control signal received from the external monitoring device. 6. The method for controlling a power storage system according to claim 5, further comprising: allowing the master Battery Management Systems to output a slave control signal through the slave communication networks to control the slave Battery Management Systems based on the master control signal received from the super master Battery Management System.
Hagen Ronald A. ; Chen Kenneth W. ; Comte Christophe,CAX ; Knudson Orlin B. ; Rouillard Jean,CAX, Fault-tolerant battery system employing intra-battery network architecture.
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