WU Zhong-shan. Implementation of improved perturbation observation method for photovoltaic MPPT based on DSP[J]. 2018, (9): 87-89. DOI: 10.13873/J.1000-9787(2018)09-0087-03.
Principle of maximum power point tracking( MPPT) is discussed in detail. Aiming at problem of power loss caused by fixed step of perturbation and observation( P&O) method
a strategy of variable step length is proposed. Arctan function is used to normalized step length
which makes the step length the variable in certain range and simulation verification is carried out
the maximum power point tracking platform of solar energy is designed. Including hardware and software design. The hardware includes Boost boosting circuit