A power spring control method for adjusting load voltage angle in real time

Abstract

The application discloses a power spring control method for adjusting the load voltage angle in real time. The method comprises the following steps: AC sampling; generating the angle between the real-time key load voltage and non-key load voltage, denoted as θ angle; generating the reference output voltage of the power spring; and generating the power spring switch tube driving signal. The control method makes the power spring flexibly adjust the value of the θ angle according to the real-time active power injected from the power generation end to the load end, thereby controlling the size of the power spring compensation active power, stabilizing the power of the key load, and making the power fluctuation of the non-key load within the allowable range. In addition, the control method can maximize the use of the power fluctuation range allowed by the non-key load, reduce the energy storage capacity required at the DC side of the power spring, and reduce the construction cost of the system.

Images