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Reactive Power and Voltage Analysis Method of Urban Power Grid Based on the Principle of Hierarchy and Partition

A layered partitioning and urban power grid technology, applied in reactive power compensation, reactive power adjustment/elimination/compensation, electrical components, etc., can solve the problem of less research on the hierarchical partitioning of the power grid, and reduce the workload of manual statistics , accurate simulation results and clear logical structure

Active Publication Date: 2019-09-24
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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Problems solved by technology

At present, there are few domestic studies on the hierarchical division of power grids

Method used

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  • Reactive Power and Voltage Analysis Method of Urban Power Grid Based on the Principle of Hierarchy and Partition
  • Reactive Power and Voltage Analysis Method of Urban Power Grid Based on the Principle of Hierarchy and Partition
  • Reactive Power and Voltage Analysis Method of Urban Power Grid Based on the Principle of Hierarchy and Partition

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Embodiment Construction

[0043] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0044] Such as figure 1 As shown, this embodiment provides a method for analyzing reactive power and voltage of an urban power grid based on the principle of hierarchical partitioning, including:

[0045] S1. The power grid is stratified according to different voltage levels, and the partition optimization mathematical model is established with the load balance of the partition as the partition optimization objective function;

[0046] S2. Solving the partition optimization mathematical model to obtain an optimal partition strategy for the power grid;

[0047] S3. Classify various e...

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Abstract

The invention relates to an urban power grid reactive voltage analysis method based on a layering and zoning rule. The urban power grid reactive voltage analysis method comprises the following steps: S1, layering a power grid according to different voltage classes, using zonal load balance as a zonal optimized objective function to establish a zonal optimized mathematical model; S2, solving the zonal optimized mathematical model, and acquiring an optimized zonal strategy of a power grid; S3, classifying various electric components for generating and consuming reactive power in the power grid, and based on the optimized zonal strategy of the power grid, using an emulation method to acquire the reactive distribution condition of each zone of the power grid. Compared with the prior art, the method has the advantage that the logic structure is clear, practical and reasonable.

Description

technical field [0001] The invention relates to the technical field of transmission network planning and operation, in particular to a method for analyzing reactive power and voltage of an urban power grid based on the principle of layering and partitioning. Background technique [0002] As an international metropolis, Shanghai’s power load presents typical metropolitan power grid load characteristics: large total load, high load density, widening peak-to-valley difference in power consumption year by year, prominent peak-shaving contradictions in the system, and load impact on grid power supply reliability. and higher power quality requirements. Due to the lack of local power sources in the Shanghai power grid, a large amount of power is received from the external power grid through the "four AC and four direct" transmission channels. As the proportion of power received by the Shanghai power grid continues to increase, the proportion of power received has accounted for 40% ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/18
CPCH02J3/1828H02J2203/20Y02E40/30
Inventor 崔勇
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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