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Integration methods for distributed power generation system

A technology of distributed power generation and integration method, applied in the field of integration of distributed power generation systems, can solve problems such as slow solution speed, and achieve the effect of fast calculation speed and high stability

Inactive Publication Date: 2011-05-11
TIANJIN UNIV
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  • Application Information

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Problems solved by technology

Although the implicit integration method is complex to solve, it has better numerical stability and allows a larger step size. However, the implicit integration method needs to form and solve the Jacobian matrix at each step in the iterative process. In the same step In the long run, the implicit integration method is slower than the explicit integration method

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  • Integration methods for distributed power generation system
  • Integration methods for distributed power generation system
  • Integration methods for distributed power generation system

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0027] In order to take into account both the implicit integration method and the explicit integration method in the distributed power generation system, to obtain faster calculation speed and higher stability, the embodiment of the present invention provides an integration method suitable for distributed power generation systems, see figure 1 , figure 2 , image 3 with Figure 4 , see the description below:

[0028] 101: Divide the dynamic model of the distributed power generation system into a rigid subsystem model and a non-rigid subsystem model;

[0029] Among them, the rigid subsystem is usually a fast dynamic power electronic device, and the non-rigid subsystem is usually a slow dynamic distributed power supply, see figure 1...

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Abstract

The invention discloses integration methods for a distributed power generation system, and relates to the field of digital simulation of power systems. The distributed power generation system is divided into a rigid subsystem and a non-rigid subsystem according to different dynamic properties of elements, wherein the rigid subsystem is resolved by an implicit integration method; and the non-rigid subsystem is resolved by an explicit integration method. The method provided by the invention combines the implicit integration method and explicit integration method, acquires a higher calculation speed and a higher stability and meets requirements for actual application.

Description

technical field [0001] The invention relates to the field of electric power system digital simulation, in particular to an integral method suitable for a distributed power generation system. Background technique [0002] In recent years, the theory and technology related to the grid-connected operation of distributed power generation systems have increasingly attracted the attention of academia and industry. The existence of a large number of grid-connected distributed power sources has put forward higher requirements for the simulation and analysis theory of distributed power generation systems. . Distributed power generation systems are generally connected to medium and low voltage distribution networks in two ways: 1. Direct access; for example: split-shaft micro gas turbine power generation system and asynchronous fan power generation system, etc.; 2. Access through power electronic devices; for example: photovoltaic power generation system, fuel cell power generation s...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCY02E60/00
Inventor 王成山彭克李琰
Owner TIANJIN UNIV