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

A technology of active distribution network and voltage characteristics, applied in the direction of AC network, electrical components, circuit devices, etc. with energy trade/energy transmission authority, can solve the problems of wind power and photovoltaic voltage characteristics, and overcome the limitations and conservatism, increase the feasible region, and reduce the effect of electricity demand

Active Publication Date: 2021-11-30
KUNMING UNIV OF SCI & TECH
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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.

Method used

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

Examples

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Embodiment 1

[0062] Example 1: A active distribution network optimization method considering source voltage characteristics, including the following steps:

[0063] Step 1: With the reactive power compensation capacity, the distributed power supply is active, reactive power is decision-making, and the active distribution network is minimized;

[0064] Step 2: Electrical physical constraints and safety techniques that need to be met by the active power distribution system are constrained conditions, and construct the active distribution network operation optimization model considering the source voltage characteristics;

[0065] Step 3: Solving the optimization model of step 2 based on the GAMS optimization platform.

[0066] Specifically, the active distribution network optimization model considering the source voltage characteristics is based on reactive compensation capacity, the distributed power supply is active, and the powerless power is decomposed. The power distribution cost is minimiz...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00
CPCH02J3/00H02J3/008H02J2203/20
Inventor 刘志坚陈潇雅边居政罗凌灵宋琪谢静刘亚锦王洪亮王雁红周于尧徐慧王一妃余进
Owner KUNMING UNIV OF SCI & TECH
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