摘要:
A method detects at least one photovoltaic electricity production apparatus in an electrical distribution network including at least one electrical installation and at least one current sensor, each installation further including at least one electrical apparatus. The method includes acquisition, by a current sensor, of a plurality of active power profiles of a corresponding installation, computation, for at least one pair of active power profiles of a differential profile equal to the difference between the power profiles of the pair, computation of a coefficient of correlation between the differential profile or profiles computed and a reference profile, and detection of the presence of a photovoltaic electricity production apparatus among the electrical apparatus or apparatuses of the installation.
摘要:
A method for optimizing the consumption, by loads, of an electrical power produced by at least one renewable source and at least one non-intermittent source connected to an electricity production and distribution network, the method including a step of determining a time profile of a renewable power produced by the at least one renewable source; a step of determining, among loads connected to the network, constraints on the use of said loads; a step of determining a plan of operation of said loads for maximizing the consumption of the renewable power produced by the at least one renewable source, while respecting said constraints on use, this determination including an evaluation of the consumption of the renewable power under the effect of a time-shift in starting said loads.
摘要:
A current sensor including a measurement torus, arranged in a casing positioned around an electric conductor able to transmit an electric current, and a device for detecting a voltage in the electric conductor. The detection device is configured for surrounding the electric conductor when the current sensor is installed.
摘要:
The invention relates to a device for measuring an electrical quantity of one phase of an AC electric current in an overhead electrical network, comprising: a sensor designed to be attached to an electric line of the overhead electrical network, said sensor including: an electrically conductive plate; an electrical conductor, designed to electrically connect the plate to the electric line, in order to circulate a first electric current from the electric line through the electrical conductor; a processing unit, designed to determine the electrical quantity from a value of the first electric current and a value of a capacitance between the plate and the ground. Said device also comprises a generator, electrically connected to the electrical conductor and designed to inject a second electric current through the electrical conductor, said second electric current having a frequency other than the frequency of the first electric current, the processing unit also being designed to calculate the value of the capacitance between the plate and the ground as a function of a value of the second electric current.
摘要:
This detector (1) for an electric conductor comprises a frame (2) on which a mechanism unit (200) is fixed including a magnetic toroid, divided into two branches, the toroid having a coil (24) wound around at least one of the two branches, and a current sensor, divided into two branches (26A, 26B). The mechanism unit also includes a force transmitting element, said element being provided with at least one portion able to receive the conductor by bearing, and at least two clamps (30A, 30B) for anchoring the detector on the electric conductor, each clamp being rotatable between an open position and a locked position of the clamp. The detector also comprises a base and at least one electronic device (6). The force transmitting element is extended by a trigger, each anchoring clamp (30A, 30B) has a portion in contact with the trigger, and each clamp bears a protruding member (34A, 34B). A spring (36A, 36B) is stretched between the protruding member (34A, 34B) and a part (290B, 290B) fixed on the frame (2). Furthermore, each spring exerts a rotational torque on the clamp and, between the open position and the locked position, the clamp passes through a neutral position, where the protruding member, its axis of rotation (X30A, X30B) and the fixed part (290A, 290B) are aligned and the spring does not exert a rotational torque on the clamp.
摘要:
A method for constructing a predictive model of a change of state of an electrical distribution network, the electrical distribution network including a node supplying power to loads connected by way of a distribution line, the method including: a. a step of measuring the variation, during a first time period, of a physical quantity A at the main node, and of a physical quantity B at measuring points of the network; and b. a step of correlating the quantity A and the quantity B measured in step a., so that knowledge of the physical quantity A at the main node allows the value of the physical quantity B at the plurality of measuring points of the network to be predicted.
摘要:
A system for detecting an electrical fault in an electrical installation including several electrical conductors, the system including at least two measurement modules, each measurement module including first radioelectric communication device, a sensor for measuring each electrical magnitude associated with a corresponding electrical conductor and a first clock defined by a first initial instant and a first clock frequency, each measured value being suitable for being associated with a first instant of measurement, determined with respect to the first initial instant and as a function of the first frequency, an acquisition unit, including second radioelectric means adapted for communicating with the first radioelectric communication device.