Research on Discretization PI Control Technology of Single-Phase Grid-Connected Inverter with LCL Filter

Li, Jianke; Wang, Jinquan; Xu, Yanhui; Li, Jianting; Chen, Jingjing; Hou, Pengfei; Suxiang, Qian

doi:10.1155/2014/129619

Cited by 3 publications

(1 citation statement)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Because of the technical maturity, P and PI control methods are widely used in the closed-loop control of the inverters in various power electronic equipment, controlling the whole system or the local current or voltage [1][2][3][4]. And, the high execution speed, the quick current response and the constant switching frequency of the switching devices are their prominent advantages, especially for real-time tracking purpose.…”

Section: Introductionmentioning

confidence: 99%

Pseudo-PID Control of Pulse Width Modulation Inverter for Relay Testing

Sun¹

2018

Proceedings of the 2018 2nd International Conference on Electrical Engineering and Automation (ICEEA 2018)

View full text Add to dashboard Cite

Abstract-P and PI control methods are widely used in the closed-loop control of the inverters in various power electronic equipment. However, PID control method is barely adopted. In this paper, from an in-depth analysis of the operation and control processes of pulse width modulation (PWM) inverter, it is verified that PID control method is not suitable for inverter control. And the theoretical process gives birth to a new control method, which is similar but not identical to PID control method, therefore, it is named as pseudo-PID control method. For fundamentality and generality, the pseudo-PID control method is derived from the single-phase PWM inverter, which is the basis of threephase or multilevel inverters. To verify the performance of the pseudo-PID control method, it is applied to a single-phase PWM inverter for relay testing. The simulation and experimental results demonstrate that with the aid of pseudo-PID control method the accuracy of the output current of the inverter is already comparable to that of the linear power amplifier (LPA), which makes the application of inverter in relay testing feasible. Considering the higher efficiency and simpler structure of the PWM inverter, it can make the relay testing device more cost-effective.

show abstract

Section: Introductionmentioning

confidence: 99%