A Calculation Method of Transshipment Transaction Cost Based on Optimal Power Flow

A technology of optimal power flow and calculation method, applied in the field of power system, can solve the problems of infeasibility, high and frequent transshipment transactions, etc., and achieve the effect of reflecting the economic rationality of calculation

Active Publication Date: 2017-06-06
XI AN JIAOTONG UNIV
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Problems solved by technology

Even if the same capacity is transshipped, the transshipment fee of the later arranged transaction is significantly higher than that of the earlier arranged transaction
Moreover, the current cross-provincial and cross-regional power transactions are not only frequent, but also have larger and larger capacities
Since the operation of the power system itself is limited by technical constraints such as transmission capacity and voltage quality, when arranging large-capacity transshipment transactions, if no adjustments are made, these technical constraints will often be exceeded, making transshipment transactions unfeasible. Safe and stable operation has brought serious impact

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  • A Calculation Method of Transshipment Transaction Cost Based on Optimal Power Flow
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  • A Calculation Method of Transshipment Transaction Cost Based on Optimal Power Flow

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings, but the content of the present invention is not limited thereto.

[0030] see figure 1 , the present invention includes the calculation method of the transshipment transaction cost based on the optimal power flow, including the following steps:

[0031] (1) When applying the model proposed by the present invention, it is necessary to obtain the input data of the calculation model including: basic technical data of the power system, data of operating constraints of the power system, economic data of generators and transshipment transaction data;

[0032] Among them, the basic technical data of the power system are node data, transmission line data, transformer data, load data and generator data; node data such as the reference voltage V of node Bi Bi , Bi∈S B ; Transmission line data such as the impedance value R of branch l l +jX l and the admittance value G l +jB ...

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Abstract

The invention discloses a method for calculating wheeling transaction fees based on an optimal power flow. Power grid operation constraint is introduced into an optimal power flow model so that a wheeling fee calculation model based on the optimal power flow is established, and the wheeling transaction fees can be calculated by comprising the optimal power flow regardless of a wheeling transaction and the optimal power flow taking all wheeling transactions into account. The obtained results are not affected by a transaction arrangement order; the method is capable of providing an optimization scheme for adjusting the operating mode of the power grid under high-capacity wheeling transactions, and especially applicable to calculating trans-provincial and trans-regional power wheeling transaction fees under the circumstance of coexistence of high-capacity and multi-wheeling operations.

Description

technical field [0001] The invention belongs to the field of power systems, and in particular relates to a method for calculating transshipment transaction costs based on optimal power flow. Background technique [0002] With the development of power grid construction and the increase of new energy transmission, cross-regional power transfer and transactions are becoming more and more frequent, which brings certain challenges to the planning, dispatching and safe and reliable operation of the power grid. In order to solve this problem, it is necessary to find a more reasonable calculation method of transshipment transaction fees. [0003] The existing transshipment cost calculation methods usually adopt the comprehensive cost method based on conventional power flow, including contract path method, stamp method, boundary current method, megawatt-kilometer method, etc. These methods have some defects, and it is difficult to apply to the calculation of transshipment transactio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q30/02G06Q50/06
Inventor 王建学周玉龙李昀昊
Owner XI AN JIAOTONG UNIV
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