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Method for establishing linear link energy function and application

A technology of energy function and inertia link, which is applied in the direction of AC network circuit, circuit device, single network parallel feeding arrangement, etc., and can solve problems such as energy function establishment

Inactive Publication Date: 2017-11-21
KUNMING UNIV OF SCI & TECH
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Problems solved by technology

[0004] The invention provides a method for establishing the energy function of the linear link and its application to solve the problem of establishing the energy function of the linear link or the energy function of the linear link in the complex system

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  • Method for establishing linear link energy function and application
  • Method for establishing linear link energy function and application
  • Method for establishing linear link energy function and application

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Embodiment 1

[0018] Embodiment 1: A method for establishing a linear link energy function, which can be specifically applied to a power system stabilizer (PSS) with additional control of a generator:

[0019] Step 1: A typical power system stabilizer (PSS) is available Figure 4 The structure shown indicates that the PSS contains an amplification link whose amplification factor is K s ; The signal filtering link, its transfer function is The phase compensation link, its transfer function is where T w is the time constant (seconds) of the signal filtering link, T 1 , T 2 is the time constant (seconds) of the phase compensation link, and s is the differential operator.

[0020] Will Figure 4 The links represented by each transfer function of the PSS branch shown are respectively represented by Figure 1-Figure 3 The equivalent circuit is equivalent, and the PSS link represented by the equivalent circuit is obtained as Figure 5 . The transfer function and equivalent circuit param...

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Abstract

The invention relates to a method for establishing a linear link energy function and application, and belongs to the technical field of theory of electrical engineering and generator control. The method includes realizing equivalence of a linear link represented by a transfer function with an RC circuit, and using an energy function built by the equivalent circuit as an energy function of the linear link. The method provided by the invention applies the equivalent circuit to indirectly obtain the energy function of an element, solves the problem of linear element energy establishment, and provides assistance for solving the problem of modeling of a complex system on the whole; and the method can be expanded and applied to wherever energy establishment of a linear element is needed.

Description

technical field [0001] The invention relates to a method for establishing a linear link energy function and its application, and belongs to the technical fields of electrician theory and generator control. Background technique [0002] When modeling some complex systems, it is often necessary to establish the energy function of the system. The complex system may contain linear elements. These linear elements can be regarded as a linear link. There is currently no good way to establish its energy function, and As a part of the energy function of the whole complex system, the energy function of the linear link is directly related to the establishment of the energy relationship and model of the system. For example, the generalized Hamiltonian theory is used to study the internal coupling problem of the generating set. The modeling of the generating set can be done by establishing the Hamiltonian function of the generating set, that is, the energy function of the generating set....

Claims

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Application Information

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IPC IPC(8): H02J3/46
CPCH02J3/46H02J2203/20
Inventor 钱晶叶佳曾云耿佳敏黎敬霞张文英宋琪于凤荣
Owner KUNMING UNIV OF SCI & TECH
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