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TCSC optimal configuration method based on probabilistic load flow control

A technology for optimizing configuration and probabilistic power flow, which is applied to load forecasting, circuit devices, and AC network circuits in AC networks, and can solve problems such as unrealistic physical structures, inconvenient TCSC management and maintenance, and ignoring TCSC power loss, etc.

Inactive Publication Date: 2015-04-22
HEFEI UNIV OF TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

[0006] The TCSC calculation model used in the existing TCSC optimal configuration technology often combines the TCSC reactance value with the transmission line impedance or transfers the influence of the TCSC on the power flow of the transmission line to both ends of the line to simplify the calculation. However, these two There are certain defects in the method. If the former method is used, it shows that the TCSC is installed in the middle of the transmission line, which is not in line with the actual situation, and it is not convenient for the management and maintenance of the TCSC; if the calculation is carried out according to the latter method, the power loss of the TCSC will be ignored. structurally unrealistic

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  • TCSC optimal configuration method based on probabilistic load flow control
  • TCSC optimal configuration method based on probabilistic load flow control
  • TCSC optimal configuration method based on probabilistic load flow control

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Embodiment Construction

[0083] In this embodiment, a TCSC optimal configuration method based on probabilistic power flow control is applied to the power system. In the power system, the power generated by each power generation equipment is collected on each bus, and the power is provided by each bus to the electrical equipment. Transmission of electric energy to each transmission line, through the transmission of each transmission line, the electric energy is sent to the electrical equipment on each distribution bus; each bus and each distribution bus are recorded as node t; the nodes t are sequentially numbered as t 1 ,t 2 ,...,t i ,...t N ;t i Indicates the i-th node; 1≤i≤N; N indicates the total number of nodes; each transmission line is recorded as a branch L; the branches L are sequentially numbered as L 1 , L 2 ,...,L k ,...,L K ; L k Indicates the kth branch; 1≤k≤K; K indicates the total number of branches; record the electrical equipment on each node t as D 1 ,D 2 ,...,D i ,...D N ...

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Abstract

The invention discloses a TCSC optimal configuration method based on probabilistic load flow control. The TCSC optimal configuration method is applied to an electric power system and is characterized by including the following steps of acquiring original data, acquiring uncertain factor values, conducting sampling and load flow calculation on the uncertain factor values, acquiring the load rates of all branch circuits, selecting the branch circuits with the load rates exceeding heavy load rates to be used as the branch circuits for mounting TCSCs, obtaining series compensation branch circuits, establishing an improved optimal load flow model, conducting sampling and optimal load flow calculation on the uncertain factor values again, acquiring the optimized values of TCSC reactance values, and mounting the TCSCs with the reactance values being the optimizing values at the series compensation branch circuits. Accordingly, the TCSC optimal configuration method is achieved. According to the TCSC optimal configuration method, the influence of uncertain factors in the electric power system can be considered more comprehensively, the load flow of the electric power system can be controlled more effectively, and therefore the safe operation of the electric power system can be better facilitated.

Description

technical field [0001] The invention relates to the field of power system analysis, in particular to a TCSC optimal configuration method based on probabilistic power flow control. Background technique [0002] There are a large number of uncertain factors in the power system, these uncertain factors will affect the normal operation of the power system, power system scheduling planners need to consider the impact of uncertain factors in scheduling and planning. On the one hand, considering the actual uncertain factors to carry out prediction analysis, it is convenient for dispatchers to discover the weak links in the power system and adjust the planning plan in time; Negative Effects. [0003] TCSC refers to Thyristor Controlled Series Capacitor (TCSC for short). TCSC can quickly and continuously change the equivalent reactance of the compensated transmission line, which can improve the transmission capacity of the power system, enhance the stability of the power system, and...

Claims

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Application Information

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IPC IPC(8): H02J3/00G06Q10/04G06Q50/06
CPCH02J3/003H02J3/1864H02J3/383H02J3/386H02J2203/20Y02E10/56Y02E10/76Y02E40/10
Inventor 李生虎于丽萍董王朝钱壮张维
Owner HEFEI UNIV OF TECH
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