Performance and economic analysis of a plug and play regenerative brake for improving energy efficiency for traction elevators

7th International Conference on Environment and Industrial Innovation

生态环境科学;工业技术

Jeraputra, Chuttchaval^1 ; Tiptipakorn, Supun^1

Department of Electrical Engineering, Mahidol University, Salaya, Nakonpathom

73170, Thailand^1

关键词: Braking modes;    Dynamic brakes;    Economic feasibilities;    Field measurement;    Payback periods;    Present worth;    Traction elevators;    Transfer energy;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/67/1/012014/pdf
DOI  :  10.1088/1755-1315/67/1/012014

来源: IOP

【 摘 要 】

This paper presents performance and economic analysis of a plug and play regenerative brake for improving energy efficiency for traction elevators. The proposed regenerative brake recycles the energy loss of a dynamic brake and feeds into the grid while an elevator inverter is operating in the braking mode. According to field measurement of energy consumption, it reveals that the efficiency can be improved as much as 18%. The prototype of a regenerative brake 12 kW, 400V, 3φ is developed and tested on an elevator simulator. It is shown that it can transfer energy out of a DC capacitor before the dynamic brake kicks in. Further, an economic analysis is provided to carry out the payback period and the present worth equivalent to confirm economic feasibility.