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Analysis and design of DSP-based dual-loop controlled UPS inverters
1Department of Applied Electronics, Zhejiang University, Hangzhou 310027, China. eewxh@cee.zju.edu.cn
Journal of Zhejiang University. Science
|May 27, 2003
Summary
This study introduces a new digital dual-loop control for PWM inverters using deadbeat control. This method enhances system performance and dynamic response for improved inverter operation.
Area of Science:
- Electrical Engineering
- Power Electronics
- Control Systems
Background:
- Pulse Width Modulation (PWM) inverters are crucial for power conversion.
- Enhancing the dynamic response and performance of PWM inverters is an ongoing challenge.
- Existing control schemes may have limitations in speed and accuracy.
Purpose of the Study:
- To propose a novel digital dual-loop control scheme for PWM inverters.
- To improve the dynamic response and overall performance of the inverter system.
- To validate the effectiveness of the proposed control scheme through simulation and experimentation.
Main Methods:
- Implementation of a digital dual-loop control strategy.
- Application of the deadbeat control technique for enhanced performance.
- Utilizing a half switching period delayed sampling and control timing strategy.
Main Results:
- The proposed control scheme demonstrates improved system dynamic response.
- Enhanced performance of the PWM inverter is achieved.
- Simulation and experimental results confirm the validity of the control strategy.
Conclusions:
- The novel digital dual-loop control scheme is effective for PWM inverters.
- The deadbeat control and delayed sampling strategy significantly improve system dynamics.
- The proposed method offers a viable solution for high-performance power electronic systems.