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Multi-TCSC optimal configuration method based on static security domain method

A technology of static security domain and optimized configuration, applied to circuit devices, AC networks with the same frequency from different sources, AC network circuits, etc. The effect of stable operation, improved conveying capacity, fast calculation speed/efficiency

Inactive Publication Date: 2022-03-01
CENT SOUTHERN CHINA ELECTRIC POWER DESIGN INST CHINA POWER ENG CONSULTING GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Most of the existing TCSC optimal configuration methods start from the perspective of system transmission capability, ignoring the consideration of the system active static security domain, and only considering the system transmission capability, which may cause the system operating point to not be within the static security domain, resulting in system collapse

Method used

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  • Multi-TCSC optimal configuration method based on static security domain method
  • Multi-TCSC optimal configuration method based on static security domain method
  • Multi-TCSC optimal configuration method based on static security domain method

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Embodiment

[0095] Now, the present invention will be described in detail by taking the multi-TCSC optimal configuration of the trial application of the present invention in a power system project as an example, and it also has a guiding effect on the application of the present invention to other power systems.

[0096] In this embodiment, the active power outputs PG30 and PG37 of the generators on the No. 30 bus and the No. 37 bus are selected to form the two-dimensional space of the safety zone, and all other loads and generator outputs are taken as standard parameters, and the static active power is constructed with the branch 9-8 as the object. security domain;

[0097] Assuming that the series compensation degree (equivalent reactance) of each TCSC in the power system remains constant, the influence of TCSC installation location on the safety domain is studied. The results are as follows Figure 4 shown. Assuming that the installation position of each TCSC in the power system is fix...

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Abstract

The invention discloses a multi-TCSC optimal configuration method based on a static security domain method. The method specifically comprises the following steps: step 1, based on an equivalent injection power method and a direct current power flow model, establishing an equivalent model of a single TCSC; 2, based on the method in the step 1, establishing a multi-TCSC equivalent model; 3, considering the transmission capacity limitation of a branch d and the active power injection constraint of a node m, and establishing an active static security domain model considering the influence of multiple TCSCs; 4, defining an active static security domain generalized volume index, and establishing an active static security domain optimization model considering multi-TCSC influence; and 5, solving the optimization model in the step 4 by adopting iPGSA to obtain the optimal configuration of the TCSC. The method has the advantage that safe and stable operation of a power grid can be guaranteed to the greatest extent on the basis of improving the transmission capacity of a power system.

Description

technical field [0001] The invention relates to the field of safe and stable operation of electric power systems, more specifically, it is a multi-TCSC optimal configuration method based on a static safety domain method. Background technique [0002] With the intelligent development of the power grid, controllable FACTS (flexible AC transmission system) equipment represented by TCSC (controllable series compensation device) has been more and more widely used, making the power flow distribution of the power system more complex and changeable, so , the research on static security domain (SSR) becomes very urgent; [0003] The static security domain refers to the collection of injected power that guarantees the safe and stable operation of the power system under a given network structure. The active static security region (APSSR) can be approximately expressed as the node active injection space surrounded by a hyperplane N Dimensional polyhedron. TCSC is a common series FACT...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/18H02J3/06
CPCH02J3/1807H02J3/06H02J2203/10H02J2203/20Y02E40/10
Inventor 陈宝平周思远彭越韩毅博王然陈晨周政周欣宇陆洲王文怡王宇琨王凤云李浩源张哲张梓铭张瑞朱璧君丁勇杰
Owner CENT SOUTHERN CHINA ELECTRIC POWER DESIGN INST CHINA POWER ENG CONSULTING GROUP CORP