本文为美国阿肯色大学费耶特维尔分校（作者：Haoyan Liu）的硕士论文，共92页。

本论文提出一个2千伏安单相光伏逆变器的控制器设计。随着可再生能源市场的持续快速增长，对更优控制器设计的需求不断提高。在太阳能、光伏逆变器配置、逆变器控制设计和硬件元件选择等方面进行了背景研究。控制器设计为独立和并网运行模式。对于独立逆变器控制，外部控制回路调节滤波器电容电压。将同步帧外控制环与电容电流反馈内环相结合，实现了零稳态误差和较好的阶跃负载性能。对于并网逆变器控制，采用比例电容电流反馈。这就实现了抑制LCL滤波器共振问题所需的主动阻尼。外环通过比例谐振控制器和谐波补偿器调节逆变器输出电流。采用改进的电网同步装置，通过基于串行通信的用户接口，实现有功功率和无功功率的解耦控制。为了验证所设计的控制器，构造了一个缩小的原型，并用数字信号处理器（DSP）TMS320F28335进行了测试。

This thesis presents controller designs ofa 2 kVA single-phase inverter for photovoltaic (PV) applications. The demandfor better controller designs is constantly rising as the renewable energymarket continues to rapidly grow. Some background research has been done on solarenergy, PV inverter configurations, inverter control design, and hardwarecomponent selection. Controllers are designed both for stand-alone andgrid-connected modes of operation. For stand-alone inverter control, the outercontrol loop regulates the filter capacitor voltage. Combining the synchronousframe outer control loop with the capacitor current feedback inner controlloop, the system can achieve both zero steady-state error and better step loadperformance. For grid-tied inverter control, proportional capacitor currentfeedback is used. This achieves the active damping needed to suppress the LCLfilter resonance problem. The outer loop regulates the inverter output currentflowing into the grid with a proportional resonant controller and harmonic compensators.With a revised grid synchronization unit, the active power and reactive powercan be decoupled and controlled separately through a serial communication baseduser interface. To validate the designed controllers, a scaled down prototypeis constructed and tested with a digital signal processor (DSP) TMS320F28335.

1. 引言与理论背景

2. 独立逆变器的控制器设计

3. 并网逆变器的控制器设计

4. 实验结果

5. 结论与展望

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