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Modeling method and device for long-term power supply structure planning model

A technology of planning model and modeling method, which is applied in electrical digital data processing, special data processing applications, instruments, etc., and can solve problems such as difficult sensitivity analysis, dynamic adjustment of difficult power supply structure schemes, and difficulties in dynamic optimization solutions.

Pending Publication Date: 2020-11-17
ZIBO JINGKE ELECTRIC
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Problems solved by technology

[0004] (1) The system dynamics model is mainly used to model the structural characteristics and conduction mechanism of the model, and there is no built-in optimization solver, which makes it difficult to solve the dynamic optimization
[0005] (2) Solving the system dynamics simulation through an external optimization solver will be limited by the copyright of the solver, and the iterative solution speed of multiple software is slow, making it difficult to perform sensitivity analysis
[0006] (3) It is difficult to dynamically adjust the power structure scheme according to the economic simulation results

Method used

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  • Modeling method and device for long-term power supply structure planning model
  • Modeling method and device for long-term power supply structure planning model
  • Modeling method and device for long-term power supply structure planning model

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[0048] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The exemplary described embodiments below do not represent all embodiments consistent with the present application. Rather, they are merely examples of devices consistent with aspects of the present application as recited in the appended claims

[0049] Such as figure 1 As shown, the specific implementation process of this application can be divided into two parts: optimization conditions and predictive control. The optimal conditions are used to optimize the results, and the predictive control is used to simplify the solution process.

[0050] A: optimal conditions

[0051] (1) Considering the constraints of total investment in power supply planning, power balance co...

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Abstract

The invention provides a modeling method and device for a long-term power supply structure planning model. The method comprises the following steps: step A, establishing a long-term power supply structure planning model, and counting operation constraints into the planning model through standby capacities on different time scales; step B, obtaining an optimal condition of the long-term power supply structure planning model based on an optimal control theory, and calculating an iterative step length and direction according to a Poincare maximum principle and a marginal price theory; and step C,based on the basic idea of predictive control, converting the optimal iteration process into relatively independent finite iterations in time so as to realize approximate solution of an optimizationproblem in the planning model. Power supply planning and dynamic simulation are combined through the optimal control principle, uncertainty of load prediction is considered, the long-term power supplystructure dynamic simulation method based on optimal control is provided, power supply structure optimization is brought into an economic environment dynamic simulation system, and scientificity of along-term power supply planning scheme is effectively improved.

Description

technical field [0001] The present application relates to the technical field of power systems, and in particular to a long-term power structure planning model modeling method and device. Background technique [0002] At present, system dynamics is a mature method to analyze and understand the behavior of complex systems through computer simulation, and it is widely used in energy economic simulation. [0003] Due to the coupling and interaction of energy, economy and environment, it will be one-sided to study the power system in isolation. Therefore, it is imperative to incorporate the power structure planning into the dynamic simulation of economy and environment. However, it is difficult to solve the system dynamics model optimally, and the inventors have found that the prior art has at least the following shortcomings and deficiencies: [0004] (1) The system dynamics model is mainly used to model the structural characteristics and conduction mechanism of the model, and...

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Application Information

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IPC IPC(8): G06F30/20G06F119/14
CPCG06F30/20G06F2119/14
Inventor 唐磊徐伟李明贤董义鹏
Owner ZIBO JINGKE ELECTRIC
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