Prevention and control method of IPFC-containing power system taking wind power scene into consideration

A preventive control, power system technology, applied in wind power generation, power generation forecasting in AC network, electrical components, etc., to achieve the effect of taking into account the economy

Pending Publication Date: 2021-08-10
STATE GRID JIANGSU ECONOMIC RES INST +3
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The exploration of the optimal power flow problem includ

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  • Prevention and control method of IPFC-containing power system taking wind power scene into consideration
  • Prevention and control method of IPFC-containing power system taking wind power scene into consideration
  • Prevention and control method of IPFC-containing power system taking wind power scene into consideration

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Embodiment Construction

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0030] attached figure 1 Shown is a schematic diagram of the IPFC equivalent circuit. The main control line of IPFC is line ij, and the auxiliary control line is ik; for the convenience of subsequent model derivation, m and n are added as additional virtual nodes; in case the formula is repeated, the following statement is specially made, V seim , V sein The amplitude of the output voltage of the main and auxiliary control circuit coupling series tr...

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Abstract

The invention discloses a prevention and control method for an I-PFC-containing power system taking a wind power scene into consideration. The method specifically comprises the following step: establishing a prevention and control optimization model for the IPFC-containing power system taking the wind power scene into consideration. The Markov chain model is adopted for generating the wind power scene, and the method is simple in process, high in calculation speed and suitable for prediction of a short time scale; prevention and control ensure that power flow does not exceed a limit after an anticipated accident (N-1 fault) occurs, and related power flow calculation is N-1 power flow calculation containing IPFC; and a main problem is solved by adopting a particle swarm algorithm, and whether the algorithm is converged or not is judged. According to the method, introduction of various scenes and probability scenes of wind power access is considered, so the model gives full play to the stability adjustment function of the IPFC in a limit scene; and meanwhile, the economical efficiency of the system during normal operation can be considered, so the method has high adaptability to complex and changeable operation scenes of the power system and has engineering practical significance.

Description

technical field [0001] The invention relates to the technical field of power system operation analysis and simulation, in particular to a preventive control method for an IPFC-containing power system in consideration of wind power scenarios. Background technique [0002] With the increasing complexity of the grid structure, the increasing load, and the continuous connection of large-scale wind power, the problem of optimal power flow (OPF) has frequently received attention. Flexible AC Transmission System (FACTS) is a comprehensive technology based on power electronics, control and communication. FACTS can quickly adjust the line parameters of the power grid without changing the grid structure, optimize the power flow of the power grid together with other equipment, and improve the security and economy of the power grid. [0003] Interline Power Flow Controller (IPFC) is one of the most powerful integrated FACTS devices. Different from UPFC, IPFC is connected in series wit...

Claims

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Application Information

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IPC IPC(8): H02J3/38H02J3/06H02J3/00H02J3/48H02J3/50
CPCH02J3/381H02J3/06H02J3/004H02J3/48H02J3/50H02J2203/20H02J2300/28Y02E10/76
Inventor 彭竹弈蔡晖陆瑶吴熙赵菲菲许思轩韩杏宁祁万春王瑞
Owner STATE GRID JIANGSU ECONOMIC RES INST
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