A Extreme Power Control Simulation Device

A technology of extreme power control and simulation device, which is applied in general control systems, control/regulation systems, instruments, etc., and can solve problems such as the inability to truly simulate the operating state of extreme power control of HVDC control and protection systems

Active Publication Date: 2016-01-27
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this simulation model does not involve the simulation of pole power control, so it cannot truly simulate the pole power control operation state of HVDC DC control protection system

Method used

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  • A Extreme Power Control Simulation Device
  • A Extreme Power Control Simulation Device

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Embodiment Construction

[0019] In order to better understand the above-mentioned technical solution of the present invention, a further detailed description will be given below in conjunction with the accompanying drawings and embodiments.

[0020] figure 2 An embodiment of the pole power control simulation device of the present invention is shown, which is used for the simulation of the DC control and protection system of HVDC power transmission equipment. The pole power control simulation device 250 is connected to the operation control workstation 900 of the DC control and protection system. The simulation device of the DC control and protection system of HVDC transmission equipment is as follows: figure 1 shown.

[0021] like figure 2 As shown, the pole power control simulation device 250 includes a current command calculation unit 2510 and a bipolar power balance control unit 2520; the current command calculation unit 2510 obtains power / current command and power / current speed setting informa...

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Abstract

The invention belongs to the field of electrical measurement, and particularly relates to the pole power control simulation device. The pole power control simulation device is used for simulation study of a direct current control and protection system of high-voltage direct current transmission equipment. The pole power control simulation device comprises an electric current computing element, a double-pole power balance and control unit, a divider, a first speed limiting device, a first mode selection switch, an adding device, a second speed limiting device, an integrator, an inverter and a second mode selection switch. The divider is connected to the adding device through the first speed limiting device and the first mode selection switch. The output end of the second speed limiting device is connected to the second mode selection switch through the integrator, the second mode selection switch is connected to a current converter firing angle control module of the direct current control and protection system through the adding device. The device can truly simulate and reflect a pole power control and operation state of the direct current control and protection device, and supplies corresponding simulation results to study or design of the direct current control and protection device.

Description

technical field [0001] The invention belongs to the field of electrical measurement, and in particular relates to a pole power control simulation test device used for simulation research of a DC control and protection system of high-voltage direct current transmission equipment. Background technique [0002] The ever-increasing demand for electricity has led to the development of power transmission systems in the direction of long distance, large capacity and high stability. As the construction projects of UHV AC transmission projects and HVDC transmission projects in various power grid regions continue to increase, the power grids in areas where power consumption is concentrated show obvious characteristics of UHV AC-DC hybrid receiving-end power grids with multi-DC feeds. The power grid structure is tight, and the electrical distance between multiple AC and DC lines is closer. After the UHV and EHV AC systems fail, it is easy to cause multiple DCs including high-voltage DC...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B17/02
Inventor 崔勇郭强
Owner STATE GRID CORP OF CHINA
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