Lizhi Ding

Title: The Innovative Contributions of Lizhi Ding

Introduction

Lizhi Ding is a notable inventor based in Narberth, PA (US). He has made significant contributions to the field of photovoltaic systems, particularly in the design and control of grid-forming operations. His work is essential for enhancing the efficiency and reliability of power grid support.

Latest Patents

Lizhi Ding holds a patent for a "Control design for a photovoltaic system in grid-forming operation for power grid support." This innovative patent describes a grid-forming photovoltaic (PV) system and method that operates in both islanded and grid-connected modes. The system includes an inverter that converts PV array voltage into a usable voltage for electric power system loads. An active power-frequency droop controller regulates a modulator that generates drive signals for the inverter. The proportional integral controller generates a frequency shift value that adjusts the output of the active power-frequency droop controller, allowing for phase angle control in the modulation of the inverter drive signals. A control mode switch selects among various control modes for the proportional integral controller's operation. Additionally, a model-free control algorithm manages the control mode switch, which includes a control mode for synchronizing the PV system with the grid.

Career Highlights

Lizhi Ding is currently employed at Siemens Corporation, where he continues to develop innovative solutions in the energy sector. His expertise in photovoltaic systems has positioned him as a key player in advancing renewable energy technologies.

Collaborations

Lizhi Ding collaborates with his coworker, Nan Xue, to further enhance the capabilities and applications of their innovative designs.

Conclusion

Lizhi Ding's contributions to photovoltaic system design and control are paving the way for more efficient and reliable energy solutions. His work exemplifies the importance of innovation in the renewable energy sector.