The Control Strategy of Charging Converter of Super Capacitor Energy Storage Type Trolleybus

Author(s):  
Bingzhen Chen ◽  
Yuhua Guo ◽  
Heng Wang ◽  
Zhongcai Qiu
2013 ◽  
Vol 291-294 ◽  
pp. 43-46
Author(s):  
Zhe Jiang ◽  
Zhong Dong Yin

The impact of grid-connected photovoltaic power on power quality and reliability of power supply has gained more attention, with the continuous improvement of its generation capacity. This paper describes the power conditioning system of grid-connected photovoltaic power plants based on super-capacitor energy storage, which acts as the energy storage element to stabilize fluctuations in output active power of photovoltaic power generation system. Based on the configuration and principle of the power control system, a power and current double closed loop feedback hysteresis current control strategy is proposed in details, which controls the super capacitor energy storage system to absorb and complement the active power output fluctuations of the photovoltaic power generation system. The effectiveness and good operating performance of the device and control strategy are validated by simulation with PSCAD/ EMTDC.


2020 ◽  
Vol 155 ◽  
pp. 01003
Author(s):  
Xiaojun Shen ◽  
Congying Nie ◽  
Hong Lv ◽  
Wei Wang

The randomness and volatility of wind energy bring great challenges to wind power grid-connected. The hybrid energy storage technology based on electrolysis cell hydrogen production and super capacitor has become an effective way to stabilize wind power fluctuations. Based on the establishment of the grid-type wind-hydrogen coupling system working characteristic constraint and the minimum initial investment cost of the hybrid energy storage system, an alkaline electrolytic cell-super capacitor hybrid storage based on low-pass filtering-fluctuation observation is proposed. The method can be configured, and a hybrid energy storage coordinated control strategy based on the super capacitor SOC (state of charge) is developed. The case study results show that the hybrid energy storage system configuration method and control strategy proposed in this paper are effective, which can reduce the fluctuation of wind power grid-connected power to meet the grid connection standard.


2014 ◽  
Vol 986-987 ◽  
pp. 1918-1925 ◽  
Author(s):  
Bin Wang ◽  
Zhong Ping Yang ◽  
Fei Lin

The installation of super capacitor in urban rail transit system allows the recovery of the braking energy for increasing the energy efficiency as well as a better pantograph voltage profile. An energy control strategy of the energy storage system which is suitable for the urban railway transit is proposed in this paper. Then, the methodology of capacity configuration is put forward based on the simulation platform in Matlab environment. Ultimately, the capacity configuration results of super capacitor energy storage system are determined based on parameters of an actual metro line under different traffic conditions.


Sign in / Sign up

Export Citation Format

Share Document