Research on Intelligent and Auxiliary Formulating Dispatching Plan Method for Large-scale Power Grids

The power system dispatching plan directly serves the power system and provides necessary means for the safe and economic operation of the power system. Practice has proved that the design and formulation of daily dispatching plan of power system is an important part of power system design, which must be paid attention to and done well. With the increasing scale and complexity of Chinese power grid, the formulation of power grid dispatching plans is inefficient and inaccurate, sometimes blindly. In this paper, the problem is studied, and a quasi-steady-state simulation intelligent assistant method for Power Grid Dispatching Planning is proposed. The dispatching plan makers can first make a rough dispatching schedule, and then use this method to track the trend from the first dispatching plan point to the next plan point one by one, and the operation information of each component can be displayed in the power grid in real time. The dispatching and operating personnel of the power grid can fully understand the characteristics of the corresponding dispatching plan point as well as transition between points and points, so as to help makers to perfect power network dispatching plan in an all-round way and develop a shorter time scale scheduling plan. This method can approximately simulate the real power flow fluctuation. The effectiveness of the proposed method is verified by the simulation calculation of some year national interconnection data. Based on Power System Analysis Synthesis Program (PSASP), the method proposed in this paper is implemented, and the detailed design of intelligent checking power grid dispatching plan using this method is presented.