A new design of current transformer energy harvesting power supply based on phase angle control method

作者：Liu, Yadong^*; Sheng, Gehao; Wang, Kui; Lü, Changrui; Chen, Jiawei; Jiang, Xiucheng

来源：Automation of Electric Power Systems, 2011, 35(19): 72-76.

• Basic theory
• Bus currents
• Conduction angle
• Dynamic range
• Load modeling
• Magnetization currents
• Phase angle control
• Power out put

According to the basic theory of transformer, a load model of energy harvesting coil is established. The relationships between power output, magnetization current and power output conduction angle are analyzed and verified by experiments. A novel design of current transformer energy harvesting power supply is proposed. The power output of the current transformer energy harvesting power supply is limited in a narrow range by controlling the conduction angle, so that the energy harvesting power supply can work in a dynamic range of transmission line current with low losses. The test results show that the power output of current transformer energy harvesting power supply is 2.5 W at the bus current from 40 A to 1000 A.

• 出版日期2011
• 单位上海交通大学