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NEC enables remote control of large-volume consumer batteries

Posted: 27 Nov 2013 ?? ?Print Version ?Bookmark and Share

Keywords:NEC? consumer batteries? remote control? real-time demand response?

NEC Corp. has unleashed what it says is the world's first technology that offers direct remote control of a large number of consumer's stationary batteries. According to the firm, the solution enables coordinated control of the charge and discharge of individual batteries installed in residences, buildings and other facilities, as well as electric vehicles (EVs).

As the introduction of renewable energy continues to expand, effective responses to the short term variations of electricity supplies associated with renewable energy is becoming an increasingly important issue. This technology enables the real time control or real-time demand response (DR) of electricity demand and contributes to the realization of a low carbon, sustainable society by promoting the further introduction and growth of renewable energy.

This NEC technology enables synchronization of a large number of batteries and permits creation of a new system for balancing power supply and demand.

At the core of the technology are: (1) "battery state adaptive control software" that applies NEC's unique algorithm to perform control in accordance with the state of batteries and (2) a "hierarchical hybrid control system" that combines two levels of control—remote control on the cloud side and local control on the battery side. This enables highly reliable real-time DR, which controls distributed batteries in response to changes in the supply-demand balance within less than a second, while synchronizing all batteries, no matter how many. It also allows reliable control even in the case of communication delays and other influences.

These technologies enable the continuous charging and discharging of batteries that belong to a large number of users at optimal timing in response to rapid changes in the balance of power supply and demand, which is a requirement for using renewable energy. They therefore help create a next-generation power system including real-time DR.

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