A method for power flow optimization of power system with ipfc based on misocp

An optimization method, power system technology, applied in the direction of design optimization/simulation, AC network with the same frequency from different sources, electrical components, etc., can solve problems such as strong non-convexity, and achieve the effect of fast solution speed

Active Publication Date: 2022-07-19
STATE GRID JIANGSU ECONOMIC RES INST +3
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Problems solved by technology

However, the inequality constraints (such as capacity constraints) of this model still take the amplitude and phase angle of the equivalent voltage source as variables, and there is also a strong non-convexity. Whether it is solved by the type I method or the type II method, there are local The hidden danger of the optimal solution

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  • A method for power flow optimization of power system with ipfc based on misocp
  • A method for power flow optimization of power system with ipfc based on misocp
  • A method for power flow optimization of power system with ipfc based on misocp

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[0064] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0065] In the description of the present invention, it is to be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "around", etc. Indicates the orientation or positional relationship, only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orienta...

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Abstract

The invention discloses a MISOCP-based power flow optimization method for an IPFC-containing power system, comprising the following steps: S1: performing mathematical deformation and variable substitution on an IPFC traditional injection model to construct an IPFC model; S2: IPFC equation constraint convexity processing; S3 : IPFC inequality constraint convex processing; S4: Add the convex IPFC constraints to the linearized power flow optimization model; S5: MATLAB / GUROBI optimization calculation; S6: According to the optimization results, reverse the output voltage amplitude of the converter , phase angle. The MISOCP-based power flow optimization method for an IPFC-containing power system proposed by the present invention utilizes mathematical deformation, approximate processing, and binary expansion techniques to realize the convex processing of the IPFC model, and convert the highly non-convex nonlinear optimization problem into the MISOCP model. The model is fast to solve, and the solution has global optimality. It can accurately, efficiently and quickly complete the calculation of power system power flow optimization, which has great practical value and can provide theoretical and technical support for the online optimization and regulation of comprehensive FACTS.

Description

technical field [0001] The invention belongs to the field of power system operation control and optimal scheduling, and in particular relates to a MISOCP-based power flow optimization method for an IPFC-containing power system. Background technique [0002] With the continuous development of science and technology, the problem of power flow optimization (optimal powerflow OPF) has received frequent attention in the field of power system planning and control. The so-called OPF refers to the use of controllable measures to adjust the corresponding parameters of the system under the premise that the constraints of the normal operation of the system are met, so that the system can reach the best operating state. Since the economic and security aspects of the system can be integrated into a mathematical model, such problems can be applied to the safe operation of power systems, economic dispatch, and power grid planning. The interline power flow controller (IPFC) is one of the m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/06G06F30/20
CPCH02J3/06G06F30/20H02J2203/20H02J2203/10
Inventor 祁万春吴熙王瑞蔡晖彭竹弈赵菲菲许偲轩王亮黄成辰张文嘉孙文涛
Owner STATE GRID JIANGSU ECONOMIC RES INST
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