Peaking power source layout method based on comprehensive evaluation indexes

Abstract

The invention discloses a peak-shaving power supply layout method based on a comprehensive evaluation index and belongs to the technical field of power system management. This method is to establish a reasonable economic and technical comprehensive evaluation index of the peak-shaving power supply under the consideration of the comprehensive factors of the peak-shaving power supply unit construction, unit operating costs, and peak-shaving performance, and evaluate and compare the planned peak-shaving power supply; The goal is to minimize the sum of the comprehensive evaluation indicators of the layout planning scheme, and take the construction of a single unit as the decision variable. Under the premise of satisfying various constraints, the optimal peak-shaving power supply layout scheme is obtained by solving the optimization problem; The invention can comprehensively consider the economic indicators and technical indicators of the peak-shaving power supply, and the given layout planning scheme has reached the comprehensive optimization in terms of economy and technology; at the same time, it can examine the advantages and disadvantages of the layout planning scheme more carefully and accurately; it can be based on The actual needs of different regions can be flexibly selected, which greatly improves the practicability of the method.

Description

technical field [0001] The invention belongs to the technical field of power system management, and in particular relates to a peak-shaving power supply layout method based on a comprehensive evaluation index. Background technique [0002] With the continuous development of the power system, the power load is increasing rapidly, and the peak-to-valley load difference is increasing year by year. Combined with the actual operation of my country's power grid, many provinces have the problem of insufficient peak-shaving power supply capacity, which seriously affects the stability, reliability and economic operation of the power grid. , so the planning and construction of the peak-shaving power supply has increasingly become an important problem to be solved urgently in various power grids. With the gradual advancement of the construction of UHV large power grids in China, many provincial grids will face the challenges brought by the connection of UHV AC and DC to traditional powe...

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Problems solved by technology

[0006] On the one hand, these planning models are not targeted and fail to fully reflect the particularity of peak-shaving power supply planning, and it is often difficult to obtain a reasonable planning solution. On the other hand, they only focus on the economics of peak-shaving power supplies and do not consider its peak-shaving performance technology Indicators, including peak shaving capacity and ramp rate, etc.

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