An optimization method for active distribution network considering source-load voltage characteristics

Abstract

The invention relates to an active distribution network optimization method considering source-load voltage characteristics, and belongs to the technical field of electric power system active distribution network. Taking reactive power compensation capacity, active power and reactive power of distributed power generation as the decision-making quantity, the power purchase cost of the active distribution network is minimized, and the active distribution network is constructed considering the characteristics of the source-load voltage while meeting the technical requirements for safe operation of the distribution network. Run the optimization model, and use the CONOPT solver based on the GAMS optimization platform to solve the proposed optimization model. The present invention proposes an active distribution network operation optimization model that considers the source-load voltage characteristics, taps the potential of the system's own source-load voltage characteristics to a greater extent, avoids the limitations of traditional distribution network operation optimization decisions, and illustrates the consideration of source-load voltage The characteristics are more in line with the actual operation of the power distribution system, and the invention has a positive effect on reducing the total operating cost of the power distribution system and reducing the exchange power with the upper-level transmission network, which is conducive to improving the operating efficiency of the power distribution system.

Description

Technical field [0001] The present invention relates to an active distribution network optimization method for considering source charge voltage characteristics, belonging to the technical field of power system active distribution network. Background technique [0002] The voltage level is the main indicator of the electrical support performance of the grid in a given power generation and load power balance mode. The power system is a power system for artificial closed-loop control. The power generation and load power in the power system is a function of the voltage level as the parameter. The optimization operation of the power grid is actually in the desired goal, meets the normal operation of the grid. Decision-making power balance mode in the range of safe voltage levels. [0003] The voltage characteristics of the load actually affect the calculation load on the node, thereby also changed the trend distribution in the power network to a certain extent. The static voltage cha...

AI Technical Summary

Problems solved by technology

The voltage regulation effect of the source-load power is considered in the economic dispatch of the power system, and it is pointed out that this effect can promote the consumption of renewable energy generation and improve the economy of the power grid operation, but it is mainly researched at the level of the transmission network. The processing of the voltage characteristics of the load is limited to the differential voltage regulation characteristics of the synchronous generator set and the voltage static characteristics of the load, and does not discuss the voltage characteristics of wind power, photovoltaics, etc.

Images