Search results
Results from the Health.Zone Content Network
Ancillary services are specialty services and functions provided by actors within the electric grid that facilitate and support the continuous flow of electricity, so that the demand for electrical energy is met in real time. The term ancillary services is used to refer to a variety of operations beyond generation and transmission that are ...
Auxiliary power. Auxiliary power is electric power that is provided by an alternate source and that serves as backup for the primary power source at the station main bus or prescribed sub-bus. An offline unit provides electrical isolation between the primary power source and the critical technical load whereas an online unit does not. A Class A ...
Voltage control and reactive power management. Voltage control and reactive power management are two facets of an ancillary service that enables reliability of the transmission networks and facilitates the electricity market on these networks. Both aspects of this activity are intertwined (voltage change in an alternating current (AC) network ...
A simple diagram of synchronverter operation environment. Synchronverters or virtual synchronous generators[1][2] are inverters which mimic synchronous generators (SG) [3] to provide "synthetic inertia" for ancillary services in electric power systems. [4] Inertia is a property of standard synchronous generators associated with the rotating ...
Automobile accessory power can be transferred by several different means. However, it is always ultimately derived from the automobile 's internal combustion engine, battery, or other "prime mover" source of energy. The advent of high-powered batteries in hybrid and all-electrical vehicles is shifting the balance of technologies even further in ...
In most electric power systems, some or all consumers pay a fixed price per unit of electricity independent of the cost of production at the time of consumption. The consumer price may be established by the government or a regulator, and typically represents an average cost per unit of production over a given timeframe (for example, a year).
Centralized (left) vs distributed generation (right) Distributed generation, also distributed energy, on-site generation (OSG), [1] or district/decentralized energy, is electrical generation and storage performed by a variety of small, grid -connected or distribution system-connected devices referred to as distributed energy resources (DER).
An auxiliary power unit (APU) is a device on a vehicle that provides energy for functions other than propulsion. They are commonly found on large aircraft and naval ships as well as some large land vehicles. Aircraft APUs generally produce 115 V AC voltage at 400 Hz (rather than 50/60 Hz in mains supply), to run the electrical systems of the ...