Kalman filter MPPT method for a solar inverter
Kalman filter MPPT method for a solar inverter
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太阳能逆变器的卡尔曼滤波器MPPT方法
DOI：
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发表时间：
2011
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通讯作者：
J. H. Park
中科院分区：
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作者：
Byung O Kang;J. H. Park
本文提出了一种使用卡尔曼滤波器的光伏（PV）系统最大功率点跟踪（MPPT）新方法。扰动观察（P＆O）方法由于其易于实现且简单，目前被广泛使用。 P&O通常需要抖动方案来减少噪声影响，但这会减慢跟踪响应。在频繁的环境变化中，跟踪速度是提高效率的最重要因素。所提出的方法基于卡尔曼滤波器。它显示了在嘈杂条件下的快速跟踪性能，因此能够在快速天气变化中比 P&O 产生更多电力。仿真结果比较了所提出的方法与 P&O 在系统突然重启和辐照度突然变化情况下的时间响应。
This paper proposes a new maximum power point tracking (MPPT) method for photovoltaic (PV) systems by using Kalman filter. A Perturbation & Observation (P&O) method is widely used presently due to its easy implementation and simplicity. The P&O usually requires of dithering scheme to reduce noise effects, but it slows the tracking response. Tracking speed is the most important factor on improving efficiency in frequent environmental changes. The proposed method is based on the Kalman filter. It shows the fast tracking performance on noisy conditions, so that enables to generate more power in rapid weather changes than the P&O. Simulation results are provided the comparison between the proposed method and P&O on time responses for conditions of sudden system restart and sudden irradiance change.