科研之友
微信
新浪微博
Facebook
分享链接
摘要
With the rapid development of renewable energy, inverters have been widely used in the distributed power system. For the safety of the distributed power system, the stable operation of the inverter is vital. Hence, this paper detects slow‐scale instability fast‐scale instability and in the double‐loop proportional‐integral (PI) control single‐phase full H‐bridge inverter with inductive impedance load by the discrete‐mapping model firstly. Next, the mechanism of the mechanism slow‐scale and fast‐scale behaviors are explained by state‐space average model and Filippov method, respectively. Then, passive damping method and sine wave compensation techniques are extended to the system to suppress the nonlinear behaviors. Finally, the PLECS simulation and experiments are utilized to verify the correctness of the investigations.(#br)This paper used accurate discrete‐mapping model detecting some nonlinear behaviors in DPCSHI including bidirectional Hopf bifurcation and period‐doubling bifurcation. Then, state‐space average model and Filippov method are used to explain the mechanism of these unstable behaviors. Next, the stabilization methods, the passive damping method for suppressing Hopf bifurcation and the sine wave compensation for stabilizing period‐doubling bifurcation, are extended to the DC–AC converter. Finally, PLECS simulations and experiments are utilized to verify the correctness of the investigations.
- 单位
