Research on electromagnetic transient real-time simulation compensation algorithm of power system with large-scale new energy

The math model of power system with large scale new energy including a large number of power electronic switch devices model, and semi physical real time simulation research of new energy integration control algorithm often uses a relatively larger simulation step size, thus this situation greatly reduces the simulation accuracy and stability of model with a large number of power electronic devices. This paper proposes a real time simulation compensation algorithm for fixed step to solve the problem. This algorithm compensates PWM waveform sampling error because of the fixed step real time simulation to improve the simulation accuracy, at the same time, it avoids the problem that the traditional algorithm increases the amount of computation with the increase of switching devices, laying the foundation for power system real-time simulation with large scale new energy.