Abstract: Method for controlling a generator comprising an inverter and an electrical energy source, the generator being configured to deliver output electrical values to an electrical distribution grid, the inverter being controlled by a control law, the control law comprising a set of fixed values of parameters for modelling the functioning of a synchronous virtual generator so that the control law is configured to determine at least one target output value that must be delivered by the generator to the electrical distribution grid.

Abstract: A method controls a microgrid having at least one renewable plant of distributed renewable energy resources and at least one generator plant of distributed non-renewable energy resources, and each plant has a local controller. The method includes providing type and power size of each plant to each local controller. At each local controller, measuring the frequency and estimating the total power load demanded based on the measured frequency. At the local renewable controller, decreasing the frequency at which power is supplied when the supplied power falls below the estimated power load and increasing the frequency when the supplied power exceeds the estimated power load. And at the local generator controller, increasing power supply in response to detecting a decrease in frequency, and decreasing power supply in response to detecting an increase in frequency.

Abstract: A method of controlling a generator including an inverter with electronic switches which, controlled on the basis of instantaneous cyclic ratios ?abc, enable the inverter to deliver to an electrical distribution grid an electrical power Pabc at an AC voltage Vabc, termed the source voltage, and an AC current Iabc, termed the source current, the voltage Vabc and current Iabc having a frequency fabc, the inverter being controlled by a control law that includes: a) an integration loop to evaluate a difference ? between the current Iabc and a grid current Ir actually required by the electrical distribution grid; b) a correction loop which, as soon as the difference ? is greater than a difference ?* termed the reference difference, controls the adjustment by the source current inverter of the instantaneous cyclic ratios ?abc so as to reduce the difference ? to a value less than the reference difference ?*.

Abstract: A method of controlling an electricity production station including at least one renewable energy source and an energy accumulation system, allowing an operator to commit, at an electrical distribution network manager, to a power profile PG that the station will be able to deliver over a forthcoming time period. The declared power profile must, furthermore, comply with constraints imposed by the manager of the electricity distribution network. Non-compliance with this commitment may be subject to penalties. It is then incumbent on the operator to best optimize the method of controlling the electricity production station so as to maximize the electrical power fed into the network, while complying, in so far as possible, over a certain tolerance range, with the power profile commitment PG.

Abstract: A method controls a microgrid having at least one renewable plant of distributed renewable energy resources and at least one generator plant of distributed non-renewable energy resources, and each plant has a local controller. The method includes providing type and power size of each plant to each local controller. At each local controller, measuring the frequency and estimating the total power load demanded based on the measured frequency. At the local renewable controller, decreasing the frequency at which power is supplied when the supplied power falls below the estimated power load and increasing the frequency when the supplied power exceeds the estimated power load. And at the local generator controller, increasing power supply in response to detecting a decrease in frequency, and decreasing power supply in response to detecting an increase in frequency.

Abstract: A method for managing power in a charging station for charging electric vehicles, the charging station including several charging points, the method is used to predict accurately a consumption of the charging station, with satisfaction of clients. The method includes determining a statistic model of occupation of the charging station, determining some scenarios of occupation of the charging station, take into account the statistic model, determining, for each power profile among many power profiles, some scenarios which are valid and some other scenarios which are non-valid, taking in account client satisfaction rate, selecting an optimum power profile among said many power profiles for which a number of non-valid scenarios does not exceed a predefined threshold.

Abstract: A method of controlling an electricity production station including at least one renewable energy source and an energy accumulation system, allowing an operator to commit, at an electrical distribution network manager, to a power profile PG that the station will be able to deliver over a forthcoming time period. The declared power profile must, furthermore, comply with constraints imposed by the manager of the electricity distribution network. Non-compliance with this commitment may be subject to penalties. It is then incumbent on the operator to best optimize the method of controlling the electricity production station so as to maximize the electrical power fed into the network, while complying, in so far as possible, over a certain tolerance range, with the power profile commitment PG.

Abstract: A method for managing power in a station for charging electric vehicles, the station including several charging points, the method helping to predict accurately the consumption of the charging station, with satisfaction of clients. The method includes determining a statistic model of occupation of the station, determining some scenarios of occupation of the station, taking in account the statistic model, determining, for each power profile among many power profiles, the scenarios which are valid and the scenarios which are non-valid, taking in account client satisfaction rate, selecting an optimum power profile among the power profiles for which the number of non-valid scenarios does not exceed a predefined threshold.

Abstract: The invention relates to a method for estimating a heat load imposed on a cryogenic refrigerator, to an associated computer program product, and to a method for controlling the cooling power output by said refrigerator. As the refrigerator (1, 1?) includes a phase separator (40, 40?) comprising a bath (41, 41?) of refrigerant, the method for estimating the heat load imposed on said refrigerator includes a step in which said heat load is estimated using a program executed by a computer, said program being based on a mass balance carried out on the phase separator for expressing variations in the time drift of the height of the bath of refrigerant in the phase separator.

Abstract: A method of controlling an automobile clutch in an automated transmission system with a CMPC control is disclosed having application to vehicle clutch control in an AMT system. The driver's request is translated in terms of sliding velocity ?sl. Constraints on the engine and clutch actuators are defined to respect their operating limits, and driving quality constraints are defined to guarantee comfort during the clutch engagement phase. In order to meet these quality constraints, a reference trajectory is defined for ?sl as a function of the clutch engagement time. An analytical expression allowing real-time calculation of a set of control trajectories with a CMPC control law is then defined from the expression of this reference trajectory. The trajectory respecting the constraints on the actuators is selected from among all these control trajectories. Finally, the clutch is controlled with the selected control trajectory.

Abstract: A method of controlling an automobile clutch in an automated transmission system with a CMPC control is disclosed with an application of vehicle clutch control in an AMT system. The driver's request is translated in terms of sliding velocity ?sl. Constraints on the engine and clutch actuators are defined to respect their operating limits, and driving quality constraints are defined to guarantee comfort during the clutch engagement phase. In order to meet these quality constraints, a reference trajectory is defined for ?sl as a function of the clutch engagement time. An analytical expression allowing real-time calculation of a set of control trajectories with a CMPC control law is then defined from the expression of this reference trajectory. The trajectory respecting the constraints on the actuators is selected from among all these control trajectories. Finally, the clutch is controlled with the selected control trajectory.

Abstract: A method of locating a rail vehicle on a rail track includes the following steps: measuring the speed of the vehicle at different times using means providing an approximate value of the actual speed of the vehicle; measuring an inertial magnitude at different times using a single inertial sensor disposed on board the vehicle, the inertial magnitude being chosen to depend only on the speed of the vehicle and a geometrical characteristic specific to the track; calculating the abscissa of the vehicle on the track by means of a convergent algorithm based on a non-linear observer, from the known values of the measured approximate speed of the vehicle at different times preceding the time at which the vehicle is to be located, the measurements of the inertial magnitude and a database in which the geometrical characteristics specific to the track and its spatial derivative are stored for different curvilinear abscissae, the database being obtained by a learning process conducted beforehand.

Abstract: A method of locating a rail vehicle on a rail track includes the following steps:

Abstract: A process for estimating the speed of a vehicle or of an assemblage of vehicles, based on measuring the speeds of the mechanically independent wheels, while all the wheels are slipping with respect to the rolling surface, the process includes a step using mechanical and kinematic information characteristic of the vehicle or vehicles.