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AGC closed-loop test method and device

A closed-loop testing and power grid technology, applied in the field of power systems, can solve problems such as affecting power grid operation and complex processes, and achieve the effect of reducing test risks

Pending Publication Date: 2018-09-14
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the AGC closed-loop control test requires the actual control test of the AGC power plant and the unit. Before each test, it is necessary to check whether the test preparations are ready, and then conduct the test according to the determined test technology, measure plan and experimental steps. The process is complicated , when it comes to the dispatch authorization of the power grid, it will directly affect the actual power grid operation, which has certain risks

Method used

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  • AGC closed-loop test method and device

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Embodiment 1

[0037] see figure 1 , figure 1 It is a flow chart of an AGC closed-loop testing method provided by an embodiment of the present invention; comprising:

[0038] S1. Respond to the generator control command, and adjust the active output of the generator in the simulated grid according to the generator control command, thereby generating grid data;

[0039] Wherein, the simulated power grid is a pre-built simulated power grid for simulating an actual power grid, and the simulated power grid includes at least one power plant;

[0040] S2. Collect the grid data, and process and verify the grid data;

[0041] S3. Generate a main control command according to the grid data and the control strategy of the power plant; wherein, the control strategy of the power plant is a preset control strategy for controlling the working state of the power plant, and the power plant includes at least one generator;

[0042] S4. Respond to the main control command, and generate a corresponding gene...

Embodiment 2

[0056] see figure 2 , figure 2 It is a structural block diagram of an AGC closed-loop testing device provided by an embodiment of the present invention; comprising:

[0057] The real-time simulation module 10 is used to build a simulated power grid. The simulated power grid is a pre-built simulated power grid for simulating an actual power grid. The simulated power grid includes at least one power plant; The generator control command is used to adjust the active output of the generator in the simulated grid, thereby generating grid data;

[0058] A data collection module 20, configured to collect the grid data, and process and verify the grid data;

[0059] The AGC master station module 30 is used to formulate the control strategy of the power plant, and is also used to generate a master control command according to the grid data and the control strategy of the power plant; wherein, the control strategy of the power plant is used to control the the operating status of a p...

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Abstract

The invention discloses an AGC closed-loop test method which comprises: adjusting the active output of a generator in a simulated grid to generate grid data in response to a generator control command,wherein the simulated grid is a pre-built simulation grid for simulating an actual grid and includes at least one power plant; acquiring, processing and verifying the grid data; generating a main control command according to the grid data and a power plant control strategy, wherein the power plant control strategy is a preset control strategy for controlling the working state of the power plant,and the power plant includes at least one generator; responding to the main control command, and generating a corresponding generator control command according to the main control command; determiningwhether the power plant control strategy meets an expected control strategy according to the active output of the generator. The invention also discloses an AGC closed-loop test device. The AGC closed-loop test method and device can provide an accurate AGC test environment for the production operation of the grid and reduce a test risk.

Description

technical field [0001] The invention relates to the technical field of power systems, in particular to an AGC closed-loop test method and device. Background technique [0002] AGC (Automatic Generation Control) is an important function in EMS (Energy Management System), and its control goal is to continuously reduce ACE (Area Error) due to load changes in the grid until it is zero. The dispatch center can adjust the grid power generation output and grid load balance through AGC, and adjust the ACE of the grid frequency to zero, so that the grid frequency maintains the rated value and the system is in an economical operation state. Therefore, the normal operation of the AGC function is directly related to the economic operation of the power grid, and even the safe operation. Before the AGC function and its control strategy are put into operation, it should be tested in detail. However, the AGC closed-loop control test requires the actual control test of the AGC power plant a...

Claims

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Application Information

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IPC IPC(8): H02J3/48
CPCH02J3/48H02J2203/20
Inventor 欧开健周华锋伍文聪胡亚平郭琦聂涌泉胡斌江
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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