Number of tram energy storage power stations

How do energy trams work?

At present, new energy trams mostly use an on-board energy storage power supply method, and by using a single energy storage component such as batteries, or supercapacitors.

How much energy does a tram use?

The greater the distance between stations, the greater the demand energy. The first interval has the largest distance and maximum energy consumption. If the recovered braking energy is not included, the energy consumption is 7.012 kwh. Fig. 3. DC bus demand energy curve. The tram adopts the power supply mode of catenary free and on-board SESS.

What is a hybrid energy storage system in Guangzhou Haizhu Tram?

The optimal HESS has less mass, size, cost and minimum charging state than original one in Guangzhou Haizhu tram. A hybrid energy storage system (HESS) of tram composed of different energy storage elements (ESEs) is gradually being adopted, leveraging the advantages of each ESE.

What power supply mode does a tram use?

The tram adopts the power supply mode of catenary free and on-board SESS. The whole operation process is powered by a SESS. The SESS only supplements electric energy within 30s after entering each station. The power supply parameters of the on-board ESS are shown in Table 2. Table 2. Power supply parameters of on-board ESS.

How to meet the climbing capacity of the tram?

To meet the climbing capacity of the tram, the tram is powered by power battery and supercapacitor when running at a uniform speed with the speed and slope . The output power of the power battery pack and supercapacitor pack should meet: (5) where is the power supplied by the ESS when the tram runs at speed and gradient .

How to obtain optimal energy storage elements in Guangzhou Haizhu Tram?

An improved PSO algorithm with competition mechanism is developed for obtaining the optimal energy storage elements. The optimal HESS has less mass, size, cost and minimum charging state than original one in Guangzhou Haizhu tram.