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首页> 外文期刊>Electric Power Components and Systems >An AC MPPT with Active/Reactive Power Control Feature for Single-Stage Three-Phase Grid-Connected Photovoltaic VSIs
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An AC MPPT with Active/Reactive Power Control Feature for Single-Stage Three-Phase Grid-Connected Photovoltaic VSIs

机译：具有有功/无功功率控制功能的交流MPPT，适用于单级三相并网光伏VSI

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摘要

This article introduces a new AC MPPT (maximum power point tracking) controller for single-stage three-phase grid-connected photovoltaic (PV) voltage source inverters (VSIs) with active/reactive power control capability. Novelty lies in employing the theory of power transfer in short AC transmission lines to achieve MPPT, where two independent control variables exist: load angle and inverter modulation index. Accordingly, the proposed controller maximizes the capabilities of the single-stage VSI and enables it to control either/both active power or/and reactive power, besides achieving MPPT function. Such contribution opens up avenues in MPPTs world in terms of flexibility, fast performance, and low hardware count/cost. AC refers to Alternate Current since the MPPT is managed in AC terms. Theoretical framework of the proposed controller has been addressed. Moreover, the overall system is simulated in MATLAB (The MathWorks, Natick, Massachusetts, USA) environment, and results have been introduced. Design and implementation of proposed algorithms have been carried out using a fixed-point digital signal processor (DSP)TMS320F2812. Furthermore, abread-board circuit is built up for experimentally investigating the controller's performance using 3-phase VSI that connects PV with the grid. In addition to that, a comprehensive discussion is conducted for demonstrating results. Moreover, a detailed comparison of proposed work with a number of previously published papers in literature is carried out and addressed in this manuscript. Results reveal that introduced controller achieves satisfactory performance.
机译：本文介绍了一种新的AC MPPT（最大功率点跟踪）控制器，该控制器用于具有有源/无功功率控制功能的单级三相并网光伏（PV）电压源逆变器（VSI）。新颖之处在于采用短AC传输线中的功率传输理论来实现MPPT，其中存在两个独立的控制变量：负载角和逆变器调制指数。因此，除了实现MPPT功能之外，所提出的控制器使单级VSI的能力最大化并且使其能够控制有功功率或无功功率。这样的贡献在灵活性，快速性能和低硬件数量/成本方面开辟了MPPT世界的途径。 AC是交流电，因为MPPT是用AC来管理的。提出的控制器的理论框架已得到解决。此外，整个系统在MATLAB（美国马萨诸塞州内蒂克的MathWorks公司）环境中进行了仿真，并介绍了结果。已使用定点数字信号处理器（DSP）TMS320F2812进行了建议算法的设计和实现。此外，还建立了一个面包板电路，用于使用将PV与电网连接的三相VSI来实验性地研究控制器的性能。除此之外，还进行了全面的讨论以证明结果。此外，本手稿还对提议的工作与许多先前发表的文献进行了详细的比较。结果表明，引入的控制器达到了令人满意的性能。

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