Superconducting wireSuperconducting wires are electrical wires made of superconductive material. When cooled below their transition temperatures, they have zero electrical resistance. Most commonly, conventional superconductors such as niobium–titanium are used, but high-temperature superconductors such as YBCO are entering the market. Superconducting wire's advantages over copper or aluminum include higher maximum current densities and zero power dissipation.
Electric power systemAn electric power system is a network of electrical components deployed to supply, transfer, and use electric power. An example of a power system is the electrical grid that provides power to homes and industries within an extended area. The electrical grid can be broadly divided into the generators that supply the power, the transmission system that carries the power from the generating centers to the load centers, and the distribution system that feeds the power to nearby homes and industries.
AC motorAn AC motor is an electric motor driven by an alternating current (AC). The AC motor commonly consists of two basic parts, an outside stator having coils supplied with alternating current to produce a rotating magnetic field, and an inside rotor attached to the output shaft producing a second rotating magnetic field. The rotor magnetic field may be produced by permanent magnets, reluctance saliency, or DC or AC electrical windings.
Démarreur (électricité)A motor soft starter is a device used with AC electrical motors to temporarily reduce the load and torque in the powertrain and electric current surge of the motor during start-up. This reduces the mechanical stress on the motor and shaft, as well as the electrodynamic stresses on the attached power cables and electrical distribution network, extending the lifespan of the system. It can consist of mechanical or electrical devices, or a combination of both.
Réseau électriqueUn réseau électrique est un ensemble d'infrastructures énergétiques plus ou moins disponibles permettant d'acheminer l'électricité des centres de production vers les consommateurs. Il est constitué de lignes électriques exploitées à différents niveaux de tension, connectées entre elles dans des postes électriques. Les postes électriques permettent de répartir l'électricité et de la faire passer d'une tension à l'autre grâce aux transformateurs.
Marché de l'électricitéL'expression « marché de l'électricité » désigne, de façon générale, les différentes formes d'organisation du secteur de la production et de la commercialisation de l'électricité apparus, principalement dans les années 1990, dans la plupart des pays industrialisés, dans le cadre des processus de déréglementation. De ses débuts (fin du ) à la fin du , le secteur électrique s'est organisé en monopoles territoriaux verticalement intégrés, de la production à la distribution de détail : en un point donné du territoire un client ne pouvait avoir qu'un seul fournisseur d'électricité.
Emergency power systemAn emergency power system is an independent source of electrical power that supports important electrical systems on loss of normal power supply. A standby power system may include a standby generator, batteries and other apparatus. Emergency power systems are installed to protect life and property from the consequences of loss of primary electric power supply. It is a type of continual power system. They find uses in a wide variety of settings from homes to hospitals, scientific laboratories, data centers, telecommunication equipment and ships.
Motor controllerA motor controller is a device or group of devices that can coordinate in a predetermined manner the performance of an electric motor. A motor controller might include a manual or automatic means for starting and stopping the motor, selecting forward or reverse rotation, selecting and regulating the speed, regulating or limiting the torque, and protecting against overloads and electrical faults. Motor controllers may use electromechanical switching, or may use power electronics devices to regulate the speed and direction of a motor.
Induction motorAn induction motor or asynchronous motor is an AC electric motor in which the electric current in the rotor needed to produce torque is obtained by electromagnetic induction from the magnetic field of the stator winding. An induction motor can therefore be made without electrical connections to the rotor. An induction motor's rotor can be either wound type or squirrel-cage type. Three-phase squirrel-cage induction motors are widely used as industrial drives because they are self-starting, reliable, and economical.
Réseau électrique intelligentUn réseau électrique intelligent, ou smart grid en anglais, est un réseau de distribution d'électricité qui favorise la circulation d’information entre les fournisseurs et les consommateurs afin d’ajuster le flux d’électricité en temps réel et d'en permettre une gestion plus efficace. Ce type de réseaux intelligents utilise des techniques informatiques pour optimiser la production, la distribution, la consommation et éventuellement le stockage de l'énergie afin de mieux coordonner l'ensemble des mailles du réseau électrique, du producteur au consommateur final.
