Abstract: An operating method for a Battery Energy Storage System (BESS) is provided. The BESS includes a processor and a plurality of energy storage units coupled in parallel, wherein each energy storage unit includes a Power Conservation System (PCS) and a battery module. The operating method includes performing following steps by the processor: obtaining a dedicated operation power of the BESS; calculating a remaining operation period of each energy storage unit according to a maximum operation power of each PCS and a remaining power quantity of each battery module; determining an operational order corresponding to the plurality of energy storage units according to the remaining operation period of the plurality of energy storage units and the dedicated operation power of the BESS; and controlling an operation of each energy storage unit according to the operational order.

Abstract: A method for locating faults in a power network includes reading power network information stored in a database in a data reading step. A power network matrix is created based on the power network information in a power network creating step. A fault current vector is created in a fault current vector creating step. In a fault locating step, a backward substitution is carried out on the fault current vector and the power network matrix to obtain a detection zone vector, and the fault can be located. The fault locating speed of the power network is, thus, increased.

Abstract: A method for determining a signal transmission mode of a plurality of fault indicators includes a data retrieval step, a mode setting step, a number setting step, an analysis step, a first determination step, a calculation step, a second determination step and a mode number increasing step. Based on the above step, the method is able to determine a preferred number of times the fault signals are required to be transmitted between the plurality of fault indicators when a predetermined transmission success rate is met, reducing the energy consumption and prolonging the service life of the indicators.

Abstract: A monitoring device for an electric power system includes a detection unit and a display unit. The detection unit has a power module, a current detecting module and a transmission module. The power module includes positive and negative electrodes and is coupled to the current detecting module. The current detecting module includes a first switching unit and a second switching unit. The first and second switching units are coupled between the positive and negative electrodes to detect currents on detection points of the electric power system. The transmission module includes a micro-controller unit and a transmission device coupled to the micro-controller unit. The micro-controller unit includes a first end and a second end. The first end is coupled to the first switching unit and the second end is coupled to the second switching unit. The display unit is coupled to the transmission device for receiving signals from the detection unit.

Abstract: A method for determining installation locations of a plurality of fault indicators in a power network includes a database retrieving step, an installation location setting step, a fault analyzing step, a communication quality analyzing step, a successful probability determination step and an installation location updating step. An apparatus for determining installation locations of a plurality of fault indicators in a power network includes a database, a processor, a fault analyzing module and a communication analyzing module. The processor retrieves graphical information, communication quality information, and fault rate information of feed lines of the power network from the database. The fault analyzing module generates a plurality of fault points in different zones of the power network.

Abstract: The invention discloses a current direction detection module including a conversion unit, a bridge unit and an operation unit. The conversion unit has primary and secondary sides, wherein the secondary side has first and second ends. The bridge unit has first, second, third and fourth rectifying elements and first, second, third and fourth nodes. Each rectifying element has an anode and a cathode. The anode of the first rectifying element is coupled to the fourth rectifying element. The anode of the second rectifying element is coupled to the first rectifying element. The anode of the third rectifying element is coupled to the second rectifying element. The anode of the fourth rectifying element is coupled to the third rectifying element. The first and second nodes are coupled to the first and second ends. The operation unit amplifies two bridge voltages at the third and fourth nodes and outputs an operation voltage.

Abstract: A current detecting and indicating device includes a detection unit and a display unit. The detection unit has a power module, a current detecting module, a multiplexer module and a transmission module. The power module includes positive and negative electrodes. The current detecting module includes a plurality of upper-limit switching units and a lower-limit switching unit. Each upper-limit switching unit has two ends coupled to the positive and negative electrodes, and the lower-limit switching unit has two ends coupled to the positive and negative electrodes. The multiplexer module includes a first input port and a first output port. The transmission module includes a micro-controller unit and a transmission device. The micro-controller unit includes a low-level end, a high-level end and a second input port. The second input port is coupled to the first output port. The display unit is coupled to the transmission device for receiving signals therefrom.

Abstract: The invention discloses a current direction detection module including a conversion unit, a bridge unit and an operation unit. The conversion unit has primary and secondary sides, wherein the secondary side has first and second ends. The bridge unit has first, second, third and fourth rectifying elements and first, second, third and fourth nodes. Each rectifying element has an anode and a cathode. The anode of the first rectifying element is coupled to the fourth rectifying element. The anode of the second rectifying element is coupled to the first rectifying element. The anode of the third rectifying element is coupled to the second rectifying element. The anode of the fourth rectifying element is coupled to the third rectifying element. The first and second nodes are coupled to the first and second ends. The operation unit amplifies two bridge voltages at the third and fourth nodes and outputs an operation voltage.

Abstract: A current detecting and indicating device includes a detection unit and a display unit. The detection unit has a power module, a current detecting module, a multiplexer module and a transmission module. The power module includes positive and negative electrodes. The current detecting module includes a plurality of upper-limit switching units and a lower-limit switching unit. Each upper-limit switching unit has two ends coupled to the positive and negative electrodes, and the lower-limit switching unit has two ends coupled to the positive and negative electrodes. The multiplexer module includes a first input port and a first output port. The transmission module includes a micro-controller unit and a transmission device. The micro-controller unit includes a low-level end, a high-level end and a second input port. The second input port is coupled to the first output port. The display unit is coupled to the transmission device for receiving signals therefrom.

Abstract: A monitoring device for an electric power system includes a detection unit and a display unit. The detection unit has a power module, a current detecting module and a transmission module. The power module includes positive and negative electrodes and is coupled to the current detecting module. The current detecting module includes a first switching unit and a second switching unit. The first and second switching units are coupled between the positive and negative electrodes to detect currents on detection points of the electric power system. The transmission module includes a micro-controller unit and a transmission device coupled to the micro-controller unit. The micro-controller unit includes a first end and a second end. The first end is coupled to the first switching unit and the second end is coupled to the second switching unit. The display unit is coupled to the transmission device for receiving signals from the detection unit.