Batch load flow solving method and batch load follow solving device
A batch and power flow technology, applied in the field of power systems, can solve problems such as large amount of calculation, inability to meet the needs of large-scale system analysis, unbalanced power in batch power flow, etc., to optimize the solution process, improve overall computing efficiency, and improve efficiency and accuracy. sexual effect
Active Publication Date: 2018-09-28
TSINGHUA UNIV +2
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[0003] The defects of the existing batch power flow calculation methods are mainly reflected in the large amount of calculation in the unbalanced power of the batch power flow and the forward-back generation solution process, and the low efficiency, which cannot meet the analysis needs of large-scale systems
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[0046] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0047] In order to facilitate the understanding of the embodiments of the present invention, the relevant terms are explained as follows:
[0048] 1. Power flow calculation: refers to the calculation of the distribution of active power, reactive power and voltage in the power network under the given power system network topology, component paramet...
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The embodiment of the invention provides a batch load flow solving method and a batch load follow solving device, and the method comprises the following steps: acquiring network data and an admittancematrix of a power system; generating a determination coefficient matrix according to the network data and the admittance matrix; decomposing the determination coefficient matrix through LDU to obtaina decomposed matrix L, a decomposed matrix D and a decomposed matrix U; generating multiple scenes of batch load flow calculation according to a preset factor and the network data; performing batch load flow unbalance power calculation according to parameters of the multiple scenes and the admittance matrix; performing batch forward-back substitution calculation according to a first calculation result of the batch load flow unbalance power calculation, the determination coefficient matrix and the decomposition result; and if a second calculation result of the batch forward-back substitution calculation satisfies a preset algorithm stopping condition, taking the current second calculation result as a solving result. The device executes the method above. The method and the device provided by the embodiment of the invention can improve overall calculation efficiency of batch load flow calculation.
Description
technical field [0001] Embodiments of the present invention relate to the technical field of power systems, and in particular to a method and device for solving batch power flows. Background technique [0002] With the access of new energy sources and new loads and the continuous expansion of the grid scale, the static voltage stability analysis of power systems faces new challenges. [0003] The shortcomings of the existing batch power flow calculation methods are mainly reflected in the large amount of calculation in the unbalanced power of the batch power flow and the forward-back generation solution process, and the low efficiency, which cannot meet the analysis requirements of large-scale systems. [0004] Therefore, how to avoid the above defects, improve the overall computational efficiency of batch power flow calculation, and optimize the solution process of batch power flow, so as to improve the efficiency and accuracy of large-scale system voltage stability analysi...
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IPC IPC(8): H02J3/06G06F17/16
CPCG06F17/16H02J3/06
Inventor 陈颖王明轩黄少伟刘正元马慧远于希娟
Owner TSINGHUA UNIV