Shi Xinhong

Study on wind power integration optimization model suitable for multi-operation mode

In day-ahead and real-time phases, due to limited regulation generation resources to satisfy operation reserve requirement, it is difficult to guarantee clean energy integration in full, and the integration capacity of power grid to clean energy could not be fully realized. Meanwhile, in the monthly and long-term operational planning phase, on the basis of power plant annual plans and future trend analysis for electricity, there are more generation resource optimization tools. Through different time cycle, power generation and transmission resources coordination optimization, the level of integration for clean energy can be improved. In this article, optimization periods and power-power conversion method are analyzed. The wind power integration optimization model for the three operations modes “clean energy full integration, system run cost minimum, SAN-GONG progress deviation minimum” are respectively established. Based on sequential multi-objective optimization method, the wind power monthly integration optimization model that gives consideration to multi-operation mode is proposed. The proposed model was tested on a real system; the results obtained demonstrate the effectiveness of the model.

The impact of electric power system reform on power dispatching institution

A new round of electricity market reform has started up in China. Power market construction officially started with controlling the transmission systems-and relaxing both generation side and demand side. The electricity market reform brings a series of changes for the grid development, and breakes the balance between responsibilities and rights of power dispatching department. The changing role of of power dispatching department and its cooperation with trading organization under the market mechanisms are analyzed in this paper. The specific impacts on safe and orderly operation of power system standardized management of power dispatching, consumption of clean energy and other aspects are studied in depth. Three kinds of meausres such as resources control, capability improvement and market guide are propesed, and the management system reform and operational technical reserves are prepared in advance, in order to get economic operation of electricity market and safe running of power dispatching.