A Novel MPPT Method Used for Solar PV Power System of Lunar Rover
- Paper number
IAC-11,A3,2.P,11,x10458
- Author
Ms. Chen Zhao, Shanghai Key Laboratory of Spacecraft Mechanism, Aerospace System Engineering Shanghai, China
- Coauthor
Mr. Xing Zhou, Shanghai Key Laboratory of Spacecraft Mechanism, Aerospace System Engineering Shanghai, China
- Coauthor
Dr. Minjun Mao, Shanghai Key Laboratory of Spacecraft Mechanism, Aerospace System Engineering Shanghai, China
- Coauthor
Ping Tang, Aerospace System Engineering Institute, China
- Year
2011
- Abstract
The design of lunar rover’s power system, especially the energy supply issue of China’s lunar rover is studied in this paper. Recently solar PV system is generally used for planetary rovers. However, due to the rigorous environment of the moon and limited weight and cubage restriction, an efficient and compact power system is needed to maximize the energy utilization of the output of the solar array (SA). There are several existing maximum power point tracking (MPPT) control methods to enhance the utilization of the SA, however it is never used in China’s spacecrafts. The contribution of this paper is to propose a novel and applicable MPPT control method based on the bus series regulation. In order to validate the efficiency of the proposed MPPT method, the power system circuit topology of the lunar rover is designed and simulation analysis is carried out afterwards. The simulation results demonstrate that the solar PV system with MPPT control method can track the maximum power point of the solar array precisely, manage the energy distribution among the load, the storage batteries and the SA circuit properly, and improve the energy utilization of the solar array output significantly. In conclusion, through introducing this MPPT method, the power system can provide efficient and reliable energy for the lunar rover to work in the strict environment on the moon, and finally fulfill the lunar exploration mission.
- Abstract document
- Manuscript document
IAC-11,A3,2.P,11,x10458.pdf (🔒 authorized access only).
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