Research on Pricing of Voltage Stability Index in Power System Operation

In this paper, the optimal control method of distribution network based on real-time electricity price theory is studied, and the constraints of system safety operation such as tidal current balance and node voltage fluctuation are constructed. The power generation cost of the system is the objective function, and the optimal power flow mathematics based on Lagrangian function method is used. The model solves the optimal solution of the objective function and the real-time electricity price of the node, and simulates the IEEE39 node power system. It proves the relationship between real-time electricity price and voltage stability, indicating that the real-time electricity price not only contains economic information, but also reflects the node voltage. Stability information.