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Optimal power flow algorithm containing unified power flow controller based on automatic differentiation

A technology of power flow controller and automatic differentiation, which is applied to AC networks with the same frequency from different sources, AC network circuits, circuit devices, etc., and can solve problems such as the difficulty in calculating the Jacobian matrix and Hessian matrix of the model

Inactive Publication Date: 2016-12-21
HOHAI UNIV
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Problems solved by technology

[0005] Purpose of the invention: the technical problem to be solved by this invention is to solve the power system OPF problem containing UPFC for the original-dual interior point method, because the introduction of UPFC and the change of its control mode cause the Jacobian matrix and Hessian matrix calculation of the model difficult question

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  • Optimal power flow algorithm containing unified power flow controller based on automatic differentiation
  • Optimal power flow algorithm containing unified power flow controller based on automatic differentiation
  • Optimal power flow algorithm containing unified power flow controller based on automatic differentiation

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Embodiment Construction

[0033] The present invention will be described in detail below according to specific embodiments and accompanying drawings.

[0034] An optimal power flow algorithm with a unified power flow controller based on automatic differentiation, the method is implemented in a computer according to the following steps in sequence:

[0035] (1) Obtain the network parameter information of the power system, mainly including: bus number, name, active load, reactive load, parallel compensation capacitor, branch number of transmission line, number of the first end node and end node, series impedance, parallel lead Na, transformer transformation ratio and impedance, upper and lower limits of generator active output and reactive output, generator coal-fired economic parameters, unified power flow controller control mode and parameters;

[0036] The network parameter information of the power system includes: busbar number, name, active load, reactive load, parallel compensation capacitor, branc...

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Abstract

The invention discloses an optimal power flow algorithm containing a unified power flow controller based on automatic differentiation. As the flexible control function of the unified power flow controller (UPFC) attracts more and more attention, the engineering application thereof is in the ascendant, and the research of a power system optimal power flow (OPF) algorithm model considering UPFC becomes a hot spot. The flexible and varied control function of UPFC makes the workload of algorithm programming very heavy, and a Jacobian matrix and a Hessian matrix needed in an interior point method-based calculation process can be generated automatically using an automatic differentiation (AD) technology, so that the development efficiency is improved, and the programming workload is reduced. First, a UPFC-containing power system OPF model is built, and then, the model is solved using the AD technology and the interior point method. Example results show that the method has strong convergence and good adaptability, and is simple to implement.

Description

technical field [0001] The invention relates to an optimal power flow algorithm with a unified power flow controller based on automatic differentiation, and belongs to the field of power system optimization operation. Background technique [0002] The unified power flow controller (Unified Power Flow Controller, UPFC) is a new generation of flexible AC transmission device with the most powerful functions and the most superior characteristics, and it is also the most versatile Flexible AC Transmission Systems (FACTS) so far The device, which combines a variety of flexible control methods of FACTS components, includes all capabilities of voltage regulation, series compensation and phase shifting. It can simultaneously and very quickly independently control the active power and reactive power in the transmission line. UPFC can also control the power flow distribution of the line, effectively improving the stability of the power system. Since the invention of UPFC technology, m...

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Application Information

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IPC IPC(8): H02J3/06
CPCH02J3/06H02J2203/20
Inventor 孙永辉钱臻何天雨卫志农
Owner HOHAI UNIV
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