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Maximum Power Point Tracking of Photovoltaic System Based on Reinforcement Learning

Chou, Kuan-Yu ; Yang, Shu-Ting ; Chen, And Yon-Ping

Sensors (Basel, Switzerland), 2019-11, Vol.19 (22), p.5054 [Periódico revisado por pares]

Switzerland: MDPI AG

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  • Título:
    Maximum Power Point Tracking of Photovoltaic System Based on Reinforcement Learning
  • Autor: Chou, Kuan-Yu ; Yang, Shu-Ting ; Chen, And Yon-Ping
  • Assuntos: Alternative energy sources ; Clinical decision making ; Decision making ; Markov analysis ; maximum power point tracking (mppt) ; Maximum power tracking ; Methods ; photovoltaic (pv) system ; Photovoltaic cells ; q-learning ; q-network ; reinforcement learning ; Solar energy
  • É parte de: Sensors (Basel, Switzerland), 2019-11, Vol.19 (22), p.5054
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: The maximum power point tracking (MPPT) technique is often used in photovoltaic (PV) systems to extract the maximum power in various environmental conditions. The perturbation and observation (P&O) method is one of the most well-known MPPT methods; however, it may face problems of large oscillations around maximum power point (MPP) or low-tracking efficiency. In this paper, two reinforcement learning-based maximum power point tracking (RL MPPT) methods are proposed by the use of the Q-learning algorithm. One constructs the Q-table and the other adopts the Q-network. These two proposed methods do not require the information of an actual PV module in advance and can track the MPP through offline training in two phases, the learning phase and the tracking phase. From the experimental results, both the reinforcement learning-based Q-table maximum power point tracking (RL-QT MPPT) and the reinforcement learning-based Q-network maximum power point tracking (RL-QN MPPT) methods have smaller ripples and faster tracking speeds when compared with the P&O method. In addition, for these two proposed methods, the RL-QT MPPT method performs with smaller oscillation and the RL-QN MPPT method achieves higher average power.
  • Editor: Switzerland: MDPI AG
  • Idioma: Inglês
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