High altitude area power distribution network planning research method

Abstract

The invention discloses a high-altitude area power distribution network planning research method, which comprises the following steps of: constructing a power distribution network system according to a natural resource condition and a load change state of a high-altitude area; according to basic conditions and characteristics of various local units, a steady-state power output model of each unit is established, and typical sunlight illumination, wind power and load curves are drawn; establishing an optimization model taking annual equivalent initial investment cost, operation and maintenance cost and wind curtailment and electricity curtailment penalty cost as targets according to the drawn typical day illumination, wind power and load curves, and reasonably planning the position and capacity of the distributed power supply of the system; the mutual influence of the three objective functions is comprehensively considered, and a linear weighted summation method is utilized to convert a multi-objective problem into a single-objective problem for solving; according to the method, a self-adaptive genetic algorithm is improved, diversity among populations is kept, local optimum in the later evolution stage is prevented, and the problem of locating and sizing planning of the distributed power supply of the high-altitude Tibetan area power distribution network is solved.

Description

technical field [0001] The invention relates to a research method for distribution network planning in high-altitude areas, which belongs to distribution network planning methods. Background technique [0002] With the continuous development of science and technology and the continuous improvement of economic level, the demand for energy in domestic and foreign societies is increasing day by day. Non-renewable resources such as coal, oil and natural gas have high mining costs and low storage capacity, and large-scale mining will lead to resource loss. Irreversible or even exhausted, especially when fossil fuels are used in large quantities, a large amount of polluting gases will be produced, causing pollution to the environment, while renewable energy such as wind energy and solar energy have the characteristics of sufficient energy, low pollution, and wide distribution, and their large-scale development and utilization will ease Due to the dual pressure of energy and the en...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a more realistic method for distribution network planning in high-altitude areas, which solves the planning problem of site selection and capacity determination of distributed power sources in distribution networks in high-altitude Tibetan areas

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