Method and device for analyzing newly added capacity of transmission channel between regional power grids
A technology for power transmission channels and regional power grids, applied in the direction of single-grid parallel feeding arrangement, etc., can solve the problems of no-interval networked channel calculation of power transmission channels, without comprehensive consideration of renewable energy and load fluctuation, etc., to achieve the effect of ensuring economical efficiency
Active Publication Date: 2019-11-15
TSINGHUA UNIV
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[0005] The current transmission channel planning method has no calculation for the interval network channel under the regional grid interconnection pattern in my country, especially the planning model that comprehensively considers renewable energy and load fluctuations, and coordinates consideration of energy storage and demand response technologies
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[0085] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0086] The method and device for analyzing the newly added capacity of the transmission channel between regional power grids according to the embodiments of the present invention will be described below with reference to the accompanying drawings.
[0087] Firstly, the method for analyzing the newly added capacity of the transmission channel between regional power grids proposed according to the embodiment of the present invention will be described with reference to the accompanying drawings.
[0088] figure 1 It is a flowchart ...
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The invention discloses a method and a device for analyzing the newly added capacity of a transmission channel between regional power grids. The method includes the following steps: calculating the capacity scale of a future transmission channel according to the interconnection relationship of multiple regional power grids and the capacity of an existing transmission channel, and establishing an objective function with the minimum capacity scale of the future transmission channel as an optimization objective; establishing a power balance equation according to the interconnection relationship of multiple regional power grids and the existing transmission channel; establishing conventional unit output constraints and energy storage equipment and demand response constraints; and optimizing the objective function according to the power balance equation, the conventional unit output constraints and the energy storage equipment and demand response constraints to generate a power planning model, and analyzing the newly added capacity of a transmission channel between regional power grids by solving the power planning model. The method can guarantee the power balance and the economy of construction of a regional interconnected power system by considering the renewable energy and the load fluctuation and coordinating and considering the planning model of the energy storage and demand response technology.
Description
technical field [0001] The invention relates to the technical field of electric power system planning and design, in particular to an analysis method and device for newly added capacity of transmission channels between regional power grids. Background technique [0002] my country's main energy consumption areas are concentrated in the economically developed areas in the central and eastern regions. The fossil energy is mainly coal, which is mainly distributed in North China and Northwest China. Hydropower resources are located in the Southwest. condition. The spatial distribution of load demand and energy resources determines the direction of power flow. Therefore, in general, my country's power flow presents a pattern of reverse distribution between east and west sources and loads. West-to-East power transmission is the basic strategy for my country's power grid construction. [0003] However, in recent years, the growth rate of electricity demand in the western region of ...
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IPC IPC(8): H02J3/46
CPCH02J3/46
Inventor 谢小荣李浩志马宁宁
Owner TSINGHUA UNIV