Research on Mutual Measurement Method and Strategy of Bidirectional Power DC Charging Piles

Research areas:

• Volume 11,Issue 2, Sept. 2022

Year:

2022

Type of Publication:

Article

Keywords:

Bidirectional Power Control, DC Charging Pile, Back to Back Mutual Measurement, Energy Feedback

Authors:

Hui Shang; Hongzhu Liu; Gao Chen; Congzhen Liu

Journal:

IJAIM

Volume:

11

Number:

2

Pages:

14-24

Month:

September

ISSN:

2320-5121

Abstract:

In order to improve the utilization rate of charging facilities and expand the auxiliary service capacity of charging facilities to the power grid, DC charging facilities support V2G, V2b, v2h. The demand for technology application is increasingly obvious. However, because its detection technology has not been systematically studied, if the existing detection technology is applied, it will not only follow the current technology. It also discards the advantages of bidirectional power control topology. To solve this problem, a number of bi-directional power DC charging facilities are proposed as the source of each other. Test method and control strategy of load. Taking two bi-directional power DC charging facilities as examples, the circuit topology of back-to-back mutual test is proposed and analyzed. Its working mode is introduced; Fuzzy Adaptive PI control is introduced to improve the dynamic response ability; The MATLAB simulation model and the implementation based on Ni real-time simulator are built. The platform is verified. The results show that the proposed test method and control strategy can effectively realize the test of two-way charging facilities, and provide reference for the corresponding industries. It provides a certain reference basis.

Full text: IJAIM_659_FINAL.pdf