• Electrical India
  • Sep 5, 2016

Integrated Control System For Batteries

The company will participate in the demonstration trials with TEPCO EP and Yokohama as verve toward promoting the construction and commercialisation...

Toshiba Corporation recently, entered into an agreement with Tokyo Electric Power Company Energy Partner, Inc. (TEPCO EP) and the city of Yokohama, Japan, to promote a demonstration trial of the control of multiple, grouped storage batteries as the source for building a battery service business.

  In Japan, since the Great East Japan Earthquake, easing reliance of rigid supply systems based on traditional large-scale centralised power sources while ensuring efficient and steady use of rapidly expanding renewable energy has become a serious issue.

  The Ministry of Economy, Trade and Industry (METI), adapting to this situation is promoting the construction of ‘virtual power plants,’ which apply advanced energy management technologies to centralised control of end-user side resources, such as demand response, renewable energy, storage batteries and so on, scattered throughout the power grid.

  The company will participate in the demonstration trials with TEPCO EP and Yokohama as verve toward promoting the construction and commercialisation of a service business for controlling multiple storage batteries in groups, a prerequisite for fully running virtual power plants.


Smart Resilience VPP system block diagram...

  In the trial, storage battery equipment will be installed in elementary and junior high schools designated as regional disaster centres in Yokohama. TEPCO EP will utilise storage battery group control systems developed by Toshiba to adjust power supply (demand response) during normal hours, while City of Yokohama will utilise them to supply electric power in the event of a disaster or other crisis. The features of the technology are as follows:

Storage battery group control technology

  This project encourages Toshiba to create charge and discharge plans for fixed-type storage batteries (10kWh) installed in Yokohama school, based on accurate forecasts of charge and discharge capacities that fluctuate according to power consumption quality, seasonal fluctuations, weather, and so on.

  These strategies will decide the most suitable times for battery charging and discharging in order to offer additional services and minimise imbalance costs.

  Effective use of renewable energy will be achieved by using additional photovoltaic power to charge the batteries.

  Adding up functions necessary for a VPP to fixed-type storage batteries that have so far mainly been utilised to support business stability planning will create a new value proposition, which can be provided to regions, businesses and end-users.

Negawatt technology

  On demand response led by METI since 2013, Toshiba has participated in demonstration project. The result showcases that negawatt amounts of power can be realised by allocating target reductions of power for individual consumers according to their capacity to trim down electricity demand.

  In their new venture, by combining the storage batteries installed in Yokohama schools by TEPCO into the network, Toshiba aims to curtail the response time for the negawatt system, and make available the end-user side with enhanced services.

Toshiba IoT Architecture

  IoT (Internet of Things) is the interconnection of various devices such as industrial devices, sensors, etc., via the Internet. The Toshiba Internet of Things (IoT) Architecture makes available the service platform for the system to be established in the current demonstration trial.

  This architecture merges the potential of the IoT domain with know-how in infrastructure and industrial systems that the company has gained over many years of business.

  By making use of cloud technology, the Toshiba Internet of Things architecture is proficient enough to quickly realise the development of business applications and construction of systems, and is also an exceptional base for supporting business expansion efforts.

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