摘要:
Die Erfindung betrifft eine Notstromversorgungseinrichtung für einen Stellantrieb eines Rotorblattverstellsystems (10) einer Windkraftanlage (1) mit einem oder mehreren zusätzlichen mittels eines Ladegerätes (17) wiederaufladbaren, in einem Gehäuse (41) angeordneten elektrischen Energiequelle (Akkumulatoren oder Sekundärbatterien) zur begrenzten Aufrechterhaltung der Blattverstellung bei Ausfall oder Störung des Primäranschlusses (18) des Stellantriebes (10), wobei das Gehäuse (41) der Batterie eine Entgasungsvorrichtung (36) aufweist, mittels welche beim Laden der Batterie (12) im Gehäuse (41) entstehende elektrolytische Gase nach außen abgeführt werden. Die Erfindung ist dadurch gekennzeichnet, dass die Entgasungsvorrichtung (36) einen Sensor (37) umfasst, der mit einer Auswerteeinheit (38) verbunden ist, um die Gaskonzentration innerhalb des Batteriegehäuses (41) beim Ladevorgang zu detektieren und zu messen.
摘要:
Es wird ein Akkumulator mit einem Gehäuse vorgeschlagen, in welchem wenigstens zwei mit Abstand voneinander angeordnete Elektroden angeordnet sind, welche mittels eines in dem Gehäuse aufgenommenen Elektrolyten elektrisch leitfähig miteinander in Verbindung stehen. Um anhand der Gase, wie sie bei der Zersetzung des Elektrolyten aufgrund Alterungsprozessen üblicherweise gebildet werden, Rückschlüsse auf den Betriebszustand des Akkumulators ziehen zu können, sieht die Erfindung vor, dass das Gehäuse von wenigstens einer Leitung durchsetzt ist, deren Innenraum mit dem Elektrolyt oder mit einem mit dem Elektrolyt in Verbindung stehenden Gasraum im Innern des Gehäuses kommuniziert, wobei die Leitung an eine außerhalb des Gehäuses befindliche Probenahmestelle angeschlossen ist. Bei der Leitung kann es sich insbesondere um eine Rezirkulationsleitung mit einem hierin im Kreislauf geführten Trägergas handeln, welches die in die Leitung hinein diffundierten Gase aufnimmt.
摘要:
An energy storage system includes a container enclosing a battery cell array and having a fluid which surrounds the battery cell array. The system can include a refrigeration system to increase heat energy transfer from the battery cells. The system can include an external fluid loop configured to carry the fluid externally from the container through a heat exchanger. The system can also include a wall having a communication port which is configured to connect with an enclosure and convey electric signals through the wall.
摘要:
A method of servicing a battery may include connecting a battery to a battery servicing apparatus including an automated electronic system; measuring, by the automated electronic system, a first set of metrics associated with the a battery cell; selecting, automatically by the automated electronic system, a maintenance action based at least in part upon the measured first set of metrics; directing, by the automated electronic system, performance of the maintenance action on the battery cell by an ancillary device; and/or measuring, by the automated electronic system, a second set of metrics associated with the battery cell after performance of the maintenance action. The automated electronic system may be configured to gather data using one or more probes and/or clamps associated with the battery cell. The automated electronic system may include a memory configured to store data and/or a processing unit configured to direct operation of the ancillary device.
摘要:
A system for detecting liquid on a battery or on an electronic device connected with the battery is presented. The battery has an electrical contact for transferring current from the battery to the electronic device. The system includes a sensor for detecting liquid on the battery or on the electronic device and sensor circuitry connected with the sensor. The sensor circuitry prevents current from flowing through the electrical contact of the battery upon detecting liquid.
摘要:
A lead acid battery cell having at least two containments, an inner or first containment (14) and an outer or second containment (56) around the inner containment. The inner containment contains the electrolyte (12). The outer containment is leak proof in its upright position in that it can hold all electrolyte if the inner containment is breached. The outer containment is also fire-proof and explosion proof.
摘要:
The invention relates to a device (2) for determining the density of an electrolyte (4). Said device (2) comprises at least two immersion tubes (9, 10) provided with an open orifice (52) and immerging at different depths in the electrolyte (4), whereby said immersion tubes can be respectively filled with gas to a depth (21, 22) which is allocated thereto and each tube has a different gas depth (d) with respect to the other. A least one differential pressure sensor (16) is used to define the difference in pressure inside the immersion tubes (9, 10). An electrode (11, 19) is respectively provided inside the immersion tubes (9, 10), whereby said electrode is connected to a voltage source (5, 35) in order to produce the required depth (21, 22) of gas so that said immersion tubes (9, 10) can be filled therewith upon contact with the electrolyte(4).
摘要:
A fluid level indicator for a storage battery (B) comprises a probe (F) connected to an electrical signalling circuit. The probe is disposed through the top of the battery (B) and positioned with the edge of its lower end at a predetermined level within a cell of the battery. The electrical circuit produces a signal when the fluid surface in the battery cell is at a level below the predetermined level and the probe is not in contact with the battery fluid (V). The probe (F) comprises an inner electrode (E) and an outer screen (S) isolated therefrom. The screen surrounds the electrode from its point of entry into the battery compartment such that a portion of electrode is schielded off while a lower end portion thereof is uncovered to be in contact with the battery fluid as long as the surface of said battery fluid is above the predetermined level.
摘要:
Sensors capable of measuring various electrolytic parameters such as voltage, state-of-charge, electrolyte level, internal resistance, and temperature are attached to a monitoring module which gathers and processes signals representative of information concerning the electrolytic condition of electrolytic storage cells and transmits the information to a central computer for further processing. In response to commands issued by the central computer, appropriate maintenance and/or repair operations can be initiated. Alternatively, the system described can be used to automatically perform such maintenance tasks as checking and adding electrolyte levels, reducing the voltage whose output voltage is too high, and leveling the state-of-charge of each cell in an array of electrolytic storage cells. The system can monitor other functions of the electrolytic storage cells, including the evolution of hydrogen gas and the accumulation of sediments in individual electrolytic storage cells.