中文摘要：

在分析与比较传统两态滞环电流控制和三态滞环电流控制的基础上，利用三态滞环电流自适应跟踪控制方法导出了一种新型环宽计算公式；利用Matlab／simulink工具建立了逆变控制系统仿真模型，使用该模型对并网系统电流控制进行了实验仿真．结果证明，该控制方法稳态性能好，实际电流波形理想，电流误差小．

英文摘要：

Based on the analysis and comparison of the traditional two-state hysteresis current control and the three-state hysteresis current control, the paper using the three-level adaptive tracking hysteresis current control method derived a new ring width calculation formula, using Matlab/simulink establish the inverter control system simulation model, and emulated the grid system current control. The simulation results indicate that the control mode state is steady, the actual current waveform is ideal and the current error is small.