A Megawatt Hydropower Simulation System

A simulation system and asynchronous motor technology, applied in teaching models, instruments, educational appliances, etc., can solve the problems of inability to quickly control the generator's accurate simulation, low precision, and high cost, and achieve perfect protection functions, high precision, and low cost Effect

Active Publication Date: 2021-01-12
CHINA ELECTRIC POWER RES INST +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The current hydropower simulation system cannot quickly control the generator to accurately simulate the external characteristics of the hydropower unit, and the cost is high, the construction is slow, and the accuracy is not high

Method used

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  • A Megawatt Hydropower Simulation System
  • A Megawatt Hydropower Simulation System
  • A Megawatt Hydropower Simulation System

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Embodiment Construction

[0033] The specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0034] 1. Overall scheme: the principle topology of this system is as follows figure 1 As shown, the 10kV power grid is connected to the high-voltage frequency converter through the input switch cabinet, and then connected to the 6kV variable frequency speed regulation asynchronous motor through the output switch cabinet. The high-voltage inverter starts the variable-frequency speed-regulating asynchronous motor, drives the coaxially connected synchronous generator to the synchronous speed, and then connects to the 10kV grid for power generation after passing through the grid-connected switchgear and step-up transformer. When the synchronous generator is not connected to the grid, the 380V power supply is provided from the outside to the excitation cabinet for excitation, and the grid-connected switch is controlled by the high-volt...

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Abstract

A megawatt-grade hydroelectric generation simulation system comprises a first 10-kV busbar, an input switch cabinet, a high-voltage frequency converter, an output switch cabinet, a variable-frequency speed regulating asynchronous motor, a torque and rotational speed sensor TN, a synchronous motor, an excitation cabinet, an excitation transformer cabinet, a grid-connected switch cabinet and an operating table. The first 10-kV busbar is sequentially connected with the input switch cabinet, the high-voltage frequency converter, the output switch cabinet, the variable-frequency speed regulating asynchronous motor, the torque and rotational speed sensor TN, the synchronous motor and the grid-connected switch cabinet; the high-voltage frequency converter is further connected with the grid-connected switch cabinet, the excitation transformer cabinet, the excitation cabinet, the torque and rotational speed sensor TN and the operating table; the operating table is further connected with the grid-connected switch cabinet. The megawatt-grade hydroelectric generation simulation system is high in automation degree and expandability, simulates the running characteristics of a hydroelectric generating set through software control and also can be used for simulating the running characteristics of the other electric generation forms such as a gas turbine and a diesel generator through software extension.

Description

technical field [0001] The invention relates to the research field of renewable energy power generation, in particular to a megawatt-level hydropower simulation system. Background technique [0002] In the 21st century, global energy production and consumption continue to grow, and energy shortages and environmental degradation have become global issues that threaten human survival. Countries around the world are actively exploring the future development route of energy transformation, and will develop new energy and renewable energy as a driving force for the future. As the focus of energy transformation, developed countries such as the United States, Europe, and Japan have successively introduced energy development strategies that focus on supporting the development of new energy. [0003] With the strong support of the state, the development of new energy power generation has made remarkable achievements in recent years: as of the end of 2015, my country's wind power inst...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09B25/02
CPCG09B25/025
Inventor 孔爱良华光辉汪春姬联涛梁硕夏俊荣叶荣波许晓慧赫卫国李春来丁杰吴福保杨波周邺飞朱凌志李正曦
Owner CHINA ELECTRIC POWER RES INST
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