Fast generation and solution method of power system operation simulation model under security constraints
A technology of safety constraints and power systems, applied in information technology support systems, electrical components, circuit devices, etc., can solve problems such as low computational efficiency and large-scale optimization models, and achieve improved refinement level, important practical significance, and good application foreground effect
Active Publication Date: 2017-11-28
TSINGHUA UNIV
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[0018] The purpose of the present invention is to solve the problem that the optimization model scale is relatively large in power system operation simulation considering safety constraints, which leads to low calculation efficiency
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[0027] Below in conjunction with accompanying drawing, the fast generation and solution method of the power system operation simulation model of security constraint that the present invention proposes;
[0028] In this method, the transmission lines, cables, transformers, and transmission equipment connecting two buses are defined as "branches"; all buses in the power system are defined as "nodes"; K is defined as the number of system branches, and N is the number of system nodes. M is the number of generators in the system; the implementation flow chart of this method is as follows figure 1 As shown, the method specifically includes the following steps:
[0029] 1) Obtain the information of all branches and nodes in the power system to be simulated within the running simulation time range, and calculate the original node impedance matrix and load of all branches in the power system according to the connection relationship between branches and nodes and the reactance of each b...
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The invention relates to a method for quickly generating and solving a security-constrained power system operation simulation model, and belongs to the field of power system analysis. The method includes: obtaining information on all branches and nodes involved in the running simulation time range, calculating the original node impedance matrix, the original matrix of the load transfer distribution factor and the original matrix of the generator transfer distribution factor considering all the branches of the power system; and Correct it according to the daily power system branch state; optimize and solve the power system unit combination optimization model without safety constraints to obtain the output of each generator set at each time period, and then judge whether there is any branch overload; through multiple iterations until there is no branch The load flow is overloaded, and the output of each unit in each period considering the safety constraints is obtained, and the operation simulation results considering the safety constraints are completed throughout the year. The method can improve the speed of power system operation simulation considering safety constraints, contribute to the operation simulation of large-scale power systems considering safety constraints, and help improve the refinement level of power system planning.
Description
technical field [0001] The invention belongs to the field of power system analysis, in particular to a method for quickly generating and solving models in power system operation simulation considering safety constraints. Background technique [0002] In recent years, with the continuous increase of the scale of the power system, the addition of intermittent energy sources such as wind power and solar energy, the construction of large-scale cross-basin multi-level hydropower stations, the access of various types of power sources such as nuclear power, pumped storage, and gas turbines, and the remote control of power grids Factors such as the distance between AC and DC hybrid transmission patterns have greatly increased the complexity of grid operation. In traditional power system planning, production simulation technology is often used to arrange the operating position of type units on the load curve, and then evaluate the adaptability and economy of future power planning. H...
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IPC IPC(8): H02J3/00
CPCG06F17/11G06F2119/06G06F30/367H02J2203/20Y02E60/00Y04S40/20H02J3/007
Inventor 张宁康重庆夏清杜尔顺
Owner TSINGHUA UNIV