| The overall and dynamic & energy systems of solar mower are mainly studied in this paper, including overall structure design, dynamic & energy systems control strategies analysis and software and hardware design, etc.Firstly, the characters and types of solar cell, battery and motor are analyzed. By matching calculation, the components of solar mower are selected and sure. Based on the above calculation and analysis, the key parts and overall are designed. The key parts include height adjustment mechanism, unfolding mechanism of solar cell panel, transmission mechanism and so on. The overall mainly distributes the components of the mower. Ultimately, the overall technical parameters of the mower are sure.Secondly, control strategies of the dynamic & energy system are analyzed. By comparing and analysis the various methods of MPPT, and the charging character of solar cells, the fuzzy control algorithm is proposed to achieve MPPT of solar cells; In term of battery charging control, the sub-constant current is used, and the method of fuzzy control is achieved the intelligence charge of battery; On the motor drive control, regulate PWM control algorithm is used in the motor.Finally, the software and hardware of dynamic & energy systems are designed, including battery management module, motor drive module and others, which are managed and controlled by the system controller. |
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