Metro line energy storage

What are the benefits of storing energy in Metro stations?

In turn the stored energy could power upon demand selected stationary electrical loads in Metro stations of a non-safety critical character (such as lighting, ventilation, pumps, etc.) leading to very significant energy savings and to a corresponding reduction of greenhouse gases.

Can stationary ESS save regenerative energy in a metro network?

In Refs. , , , , stationary ESS has been applied to save the regenerative energy in a metro network. Stationary ESS has been proposed for voltage regulation of weak points in Ref. . But, the driving cycle and characteristic of the studied metro system has not been throughly explained.

Can a stationary super-capacitor save regenerative braking energy in a metro line?

Razieh nejati fard, stationary super-capacitor energy storage system to save regenerative braking energy in a metro line Energy Convers. Manag., 56 ( 2012), pp. 206 - 214

How much energy does a metro station use?

A typical Athens Metro station stationary electrical loads consumption has been experimentally measured to be of the order of 2000 kWh/day hence the HESS energy could cover most of these loads, as long as they are not of a safety critical nature (e.g. tunnel ventilation).

Can a hybrid energy storage system smooth out DC traction network power fluctuations?

A hybrid energy storage system has also been reported aiming to smooth out DC traction network power fluctuations, due to moving trains. In this context, a variable gain K iterative learning control (K-ILC) is proposed to balance the DC regulated voltage characteristics and thus lead to optimal lifetime of the battery storage system.