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Method for realizing digital-analog hybrid simulation of power system of thermal power plant

A technology of power system and implementation method, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., to achieve the effect of improving the ability and accuracy of long-term modeling

Inactive Publication Date: 2016-04-13
CHINA ELECTRIC POWER RES INST +3
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Problems solved by technology

The invention connects the power system of the thermal power plant to the power system simulation platform, solves the difficulty of modeling the power system of the thermal power plant and improves the accuracy of medium and long-term hybrid simulation

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  • Method for realizing digital-analog hybrid simulation of power system of thermal power plant
  • Method for realizing digital-analog hybrid simulation of power system of thermal power plant
  • Method for realizing digital-analog hybrid simulation of power system of thermal power plant

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Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0028] like figure 1 As shown, a method for implementing digital-analog hybrid simulation of a thermal power plant power system provided by the present invention includes the following steps:

[0029] (1) The digital model generator in the power system simulation platform sends the analog quantity to the power system of the thermal power plant;

[0030] (2) The power system of the thermal power plant sends the mechanical power of the steam turbine to the digital model generator in the power system simulation platform to realize closed-loop digital-analog hybrid real-time simulation.

[0031] The simulation platform sends out 6 analog quantities, which are U A , U B , U C , I A , I B , I C , all signals are +10V ~ -10V signals. u A , U B , U C After the power amplifier is converted into a 100V line voltage signal, I A , I B , I C After the power ...

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Abstract

The invention provides a method for realizing digital-analog hybrid simulation of a power system of a thermal power plant. The method comprises the following steps: (1) a digital model power generator in a power system simulation platform sends a simulation amount to the power system of the thermal power plant; and (2) the power system of the thermal power plant sends mechanical power of a steam turbine to the digital model power generator in the power system simulation platform so as to realize real-time closed-loop digital-analog hybrid simulation. According to the method, the modeling is performed by applying a two-phase flow process, systems such as a boiler system, a steam turbine system, an electric system, a control and protection system and the like are truly simulated, and the gas-liquid two-phase process of the thermal power plant is accurately simulated, so that the capability and precision of long-term modeling in a power system of a thermal power plant in an existing digital-analog hybrid simulation technology are improved and the problem in real-time simulation of access of large-scale power grids to the power system of the thermal power plant is solved.

Description

technical field [0001] The invention relates to a digital-analog simulation realization method, in particular to a digital-analog hybrid simulation realization method of a thermal power plant power system. Background technique [0002] With the development and construction of AC and DC UHV in my country, large-scale intensive energy bases such as thermal power, hydropower, nuclear power and renewable energy will appear, making the impact of power supply on the safe and stable operation of the power grid more significant, and thermal power is still the main source of electricity in my country , and with the large-scale grid-connected power generation of new energy, thermal power plays a particularly important role in the frequency and peak regulation of the grid; at the same time, it is representative to study the coordination between thermal power units and the grid, and this research will also contribute to the new The source-network coordination problem of energy generation ...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/367
Inventor 魏巍夏潮刘英志李文锋陶向宇王官宏霍承祥高磊王茂清杨超马世俊林因
Owner CHINA ELECTRIC POWER RES INST
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