Source network load planning method for improving system security and coordination

A system security, source network load technology, applied in the field of source network load planning to improve system security and coordination

CN109858774AActive Publication Date: 2019-06-07广州大鱼创福科技有限公司
10 Cites 8 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2019-06-07

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a source network load planning method for improving system security and coordination. The source network load planning method comprises the following steps: step 1, determininga source network load system structure; step 2, evaluating the coordination between the power supply side and the power grid side of the source network load system by utilizing the source network synergy factor, and improving the power grid N-1 security by utilizing three safety margin indexes; step 3, establishing a coordination objective function and a safety objective function, and establishing a multi-objective planning model in combination with an economic objective function; step 4, processing the uncertainty in the multi-objective planning model; step 5, solving the multi-objective planning model by adopting a multi-objective bacterial population drug tendency algorithm; and step 6, determining examples and characteristic parameters of the examples to carry out simulation analysis.The optimal economy, safety and coordination are taken as targets, the source network planning model is established, the coordination capability of the source network and the safety of the power gridcan be effectively improved, the system economy is ensured, and the problem of high uncertainty caused by the fact that the distributed power supply is connected to the power grid is reduced.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of active distribution network planning, and in particular relates to a source network load planning method for improving system safety and coordination. Background technique

[0002] In recent years, with the reduction of energy and the deepening of the concept of energy conservation and emission reduction, distributed generation has been widely used in the power industry, and distributed generation (DG) represented by wind power and photovoltaics has been widely used. In order to solve the uncertainties caused by uncontrollable distributed power generation when connected to the power grid, active distribution network technology emerged as the times require, which can effectively regulate the power flow of the system and realize active management and active control.

[0003] As an important part of the active control of the active distribution network, the energy storage device can balance the random fluctu...

Examples

Embodiment Construction

[0207] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and Features in the embodiments can be combined with each other.

[0208] Such as figure 1 with figure 2 As shown, the present invention discloses a source network load planning method for improving system security and coordination, which includes the following steps:

[0209] S1. Determine the structure of the source network load system;

[0210] S2. Use the source-network synergy factor to evaluate the coordination between the power source side and the grid side of the source-network-load system, and use three safety margin indicators to improve the security of the grid N-1;

[0211] S3. According to the source-network synergy factor and the ...