Abstract:
The disclosed method corrects consumption measurements provided by meters presumed to be connected to a same network. The measurements taken by the meters at time intervals are collected in a form of samples used to determine electrical quantities in relation with currents and voltages relating to the meters. A selection of a group of retained samples among the samples considered to be valid, corresponding to a load range or a range of load variation ratio carried by the network based on the electrical quantities is performed. Correction functions of the consumption measurements are defined from the group of retained samples, and the consumption measurements are adapted according to the correction functions. An anomaly corresponding to an electrical non-compliance of a meter can be detected by the method.
Abstract:
There is proposed a computer-implemented method for automatic correction of a topology of a smart network that uses the information contained in the voltage measurements provided by smart meters in order to determine which meter is connected to which transformer. The method starts from an initial topology and divides up the meters into first and second batches for each transformer. Successive reallocations of meters in the second batches are made according to similarities with average voltages calculated and corrected from the first batches of meters. The method proceeds by iterations until there remain no more meters attributable to other transformers and updates the topology so that its evolution at a given time be readable.
Abstract:
The present application describes a process for the preparation of titanium-based compounds having an anatase type structure with cationic vacancies arising from a partial substitution of oxygen atoms by fluorine atoms and hydroxyl groups. Electrochemically active materials comprising the titanium-based compounds for use in lithium-ion battery electrodes are also described.
Abstract:
Described is a method or process for modifying the surface of carbon-coated electrochemically active materials such as complex oxides like olivine-type cathode materials. For instance, the surface of the carbon-coated powder material is modified to increase its hydrophobic characteristics. Also, specific groups may be grafted on the carbon surface of cathode material using the diazonium chemistry, for instance, by the spontaneous grafting of aryl ions generated in situ by the diazotization of an arylamine compound.
Abstract:
A process for the preparation of nanofilament particles of SiOx in which x is between 0.8 and 1.2, the process comprising: a step consisting of a fusion reaction between silica (SiO2) and silicon (Si), at a temperature of at least about 1410° C., to produce gaseous silicon monoxide (SiO); and a step consisting of condensation of the gaseous SiO to produce the SiOx nanofilament particles. The process may also comprising using carbon.
Abstract:
The switching apparatus and the method are for varying the impedance of a phase line of a segment of an electrical power line. The phase line includes n conductors electrically insulated from each other and short-circuited together at two ends of the segment. The apparatus comprises a controllable interrupter connected in series for each conductor; a parameter detector; a first controller for controlling the interrupters; and a disabling unit for disabling the interrupters. The disabling unit comprises n controllable switches associated with the interrupters, position detectors for detecting which of the interrupters is closed, and a second controller having a command output to command the controllable switches and ensure that, at all operating times, at least one of the interrupters is closed and disabled.
Abstract:
A positive electrode material is used to produce a positive electrode of a lithium secondary battery, the positive electrode material being a composite lithium material that includes a first lithium compound and a second lithium compound. For instance, the first lithium compound is in the form of particles and comprises at least one compound selected from a layered lithium compound and a spinel-type lithium compound. Preferably, the second lithium compound comprises at least one compound selected from a lithium-containing phosphate compound and a lithium-containing silicate compound. An amorphous carbon material layer and/or graphene-structured carbon material layer is present on the entire surface of the first lithium compound and the second lithium compound. The second lithium compound forms a thin-film layer on part or the entirety of the carbon material layer present on the surface of the first lithium compound particles.
Abstract:
The invention concerns a protected system for controlling power transactions for an electric vehicle. Identification modules are incorporated into the vehicle battery management system and box, and integrity sensors of the box and of the battery are connected to a monitoring module. The system comprises a processing module for processing information produced by the battery management system, the vehicle management unit, the integrity monitoring module, and an identification module for identifying devices connected to a bus between the devices. A memory stores data indicative of technical characteristics of the battery, and data concerning events, transactions and energy depending on the information received. A calculation unit determines an energy balance according to the event, transaction and energy data. A communication module transmits a warning in case of an imbalance in the energy balance and a breach in integrity revealed by the data.
Abstract:
Method for producing synthesis gas comprising carbon monoxide (CO) and hydrogen (H2) comprising: feeding an oxidizing stream comprising O2 and a first reducing stream comprising H2 into a first zone of a reactor, where the oxidizing stream and/or the first reducing stream comprises CO2; generating an oxy-flame in the first zone by reaction between O2 and H2, and producing a first gas comprising CO H2Ovapor by contacting the oxidizing stream and the first reducing stream with the oxy-flame; feeding into the reactor a second reducing stream comprising a second source of carbon comprising a hydrocarbon; generating in a second reaction zone of the reactor of a second gas comprising the synthesis gas, from the first gas coming from the first reaction zone and the second reducing stream by a reaction involving the hydrocarbon.
Abstract:
A system and a method for managing operating temperature and pressure of a battery are disclosed. Cells of the battery are housed in cylindrical modules into which a heat transfer fluid under pressure and at a temperature circulates. A fluidic unit has a return reservoir that collects oil leaving the modules, and cooling and heating reservoirs containing oil pumped from the return reservoir at predefined hot and cold temperatures. Oil is transmitted to the modules at a temperature and a pressure almost instantaneously obtained by regulated mixing and flow rate of hot and cold oil. The mixing and the flow rate are controlled by controllers connected to a BMS which manages oil pressure and temperature setpoints to be applied to the cells as a function of a demand in power and in energy received by the BMS and pressure and temperature measurements taken by sensors in the system.