Abstract The output power of solar panel in photovoltaic systems is affected by changes in environmental and load conditions. Most currently developed MPPT control algorithms require measurements of panel output voltage, output current, and converter output voltage. In this paper, a new scheme that can cater to uncertainties in the environmental and load condition, is developed using a disturbance observer-based sliding mode control (DOSMC). The proposed DOSMC scheme obviates the need of using a panel output voltage sensor. The proposed scheme does not use a discontinuous control, thereby overcoming the problems of chatter normally associated with the conventional sliding mode control (SMC). The stability is proven in the sense of ultimate boundedness. The proposed scheme is validated by extensive simulation and laboratory experimentation under various scenarios of irradiation, temperature, and load conditions and compared with two existing popular schemes.

中文翻译：

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使用基于干扰观测器的滑模控制来估计太阳能电池阵列电压的最大功率点跟踪

摘要 光伏系统中太阳能电池板的输出功率受环境和负载条件变化的影响。大多数当前开发的 MPPT 控制算法需要测量面板输出电压、输出电流和转换器输出电压。在本文中，使用基于干扰观测器的滑模控制（DOSMC）开发了一种可以满足环境和负载条件不确定性的新方案。建议的 DOSMC 方案不需要使用面板输出电压传感器。所提出的方案不使用不连续控制，从而克服了通常与传统滑模控制（SMC）相关的颤振问题。在极限有界的意义上证明了稳定性。