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Low-power home PV systems with MPPT and PC control modes

机译:具有MPPT和PC控制模式的低功耗家用光伏系统

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摘要

This paper presents a new control technique for low-power grid-connected photovoltaic (PV) inverters. This device is intended to be a non-expensive solution; it connects directly to a smart meter and does not consider any energy storage device. In this project, the goal is to assure that no power is injected in the electrical grid, due to legal restrictions. Hence, the power produced by the PV panel can never be higher than consumed power. In order to accomplish this objective, two control methods will be used: Maximum Power Point Tracking (MPPT) mode and Power Control (PC) mode. The MPPT mode will be active when the consumed power is higher than the PV maximum available power and the PC mode will be active when the consumed power is lower than the PV maximum available power. In addition, the controller will also decide on which control mode should be active, given the consumed power of the moment.
机译:本文提出了一种用于低功率并网光伏(PV)逆变器的新控制技术。该设备旨在作为一种非昂贵的解决方案。它直接连接到智能电表,并且不考虑任何储能设备。在此项目中,目标是确保由于法律限制,不会向电网注入任何电力。因此,PV面板产生的功率永远不会高于消耗的功率。为了实现此目标,将使用两种控制方法:最大功率点跟踪(MPPT)模式和功率控制(PC)模式。当消耗的功率高于PV最大可用功率时,MPPT模式将处于活动状态;而当消耗的功率低于PV最大可用功率时,PC模式将处于活动状态。此外,给定当前消耗的功率,控制器还将决定应启用哪种控制模式。

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