摘要:
A charge controller of a high temperature battery for a power compensator of an electric power transmission line. The charge controller includes a sensor and a processor including a memory module. The charge controller includes a virtual battery model of the battery.
摘要:
A power compensator for an electric power transmission line. The power compensator includes a voltage source converter, a capacitor and an energy storage device. The energy storage device includes a high voltage battery having a short circuit failure mode, a first main switch and second main switch for disconnecting the battery from the capacitor, and a control unit for operating the first and second switch.
摘要:
A temperature controller for providing heat to an energy storage device of a power compensator. The energy storage device includes a plurality of high temperature battery units on high potential. The temperature controller includes a pipe network for housing a heat transfer medium. The pipe network includes a main pipe loop and a local pipe loop in each battery unit. Each local pipe loop includes a first end for receiving a heat transfer medium and a second end for exhausting the medium.
摘要:
A power compensator for an electric power transmission line. The power compensator includes a voltage source converter, a capacitor and an energy storage device. The energy storage device includes a high voltage battery having a short circuit failure mode, a first main switch and second main switch for disconnecting the battery from the capacitor, and a control unit for operating the first and second switch.
摘要:
A battery unit arrangement for high voltage applications. The battery unit arrangement includes a battery unit having a battery chassis, and a switching device. The switching device includes switching mechanism for switching the battery chassis between two positions, a first position connecting the battery chassis to a pole of the battery uniti and a second position connecting the battery chassis to a zero potential. The invention also relates to a connection and disconnection arrangement and methods for operating such connection and disconnection arrangement.
摘要:
The invention relates to power networks, and in particular to a battery energy source arrangement and voltage source converter system in such network. The battery energy source arrangement includes battery energy storage, having one or more parallel-connected battery strings and a mechanism for connecting a voltage of the battery strings to a load. The battery energy source arrangement further includes battery string voltage adapter devices connected in series with respective ones of the one or more battery strings wherein the battery string voltage adapter devices are designed to handle only a fraction of the voltage handled by the battery strings.
摘要:
The invention relates to power networks, and in particular to a battery energy source arrangement and voltage source converter system in such network. The battery energy source arrangement includes battery energy storage, having one or more parallel-connected battery strings and a mechanism for connecting a voltage of the battery strings to a load. The battery energy source arrangement further includes battery string voltage adapter devices connected in series with respective ones of the one or more battery strings wherein the battery string voltage adapter devices are designed to handle only a fraction of the voltage handled by the battery strings.
摘要:
A battery unit arrangement for high voltage applications. The battery unit arrangement includes a battery unit having a battery chassis, and a switching device. The switching device includes switching mechanism for switching the battery chassis between two positions, a first position connecting the battery chassis to a pole of the battery uniti and a second position connecting the battery chassis to a zero potential. The invention also relates to a connection and disconnection arrangement and methods for operating such connection and disconnection arrangement.
摘要:
An apparatus for reducing subsynchronous resonance phenomena in a power transmission system. A determining arrangement determines components of the voltage from stator windings of a generator with one or more discrete frequencies. A calculating arrangement calculates, on a basis of the result of the determining, a voltage to be added to the voltage from the stator windings for reducing phenomena in the power system and an arrangement adapted to add the voltage calculated to the voltage from the stator windings.
摘要:
A cassette for a battery stack, including a casing for a battery pack, which casing is made of a non-conducting material. The casing has a front side with an opening for receiving the battery pack. Preferably, the casing has a back side, opposite the front side, the back side being provided with electrical connections leading into the casing and arranged to connect to the poles of a battery pack when a battery pack is inserted into the casing through the front side. Arrangement of the cassettes is also provided, wherein the cassettes in the arrangement is placed in mechanical connection on top of each other.