Closed-loop test method of generator wide-area damping control system based on adpss

A wide-area damping and control system technology, applied in the electric power field, can solve problems such as the implementation of a wide-area damping control system for generators that have not been seen before, and achieve the effect of ensuring consistency

Active Publication Date: 2016-04-27
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there is no precedent for implementing a comprehensive closed-loop test of the generator wide-area damping control system using ADPSS

Method used

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  • Closed-loop test method of generator wide-area damping control system based on adpss
  • Closed-loop test method of generator wide-area damping control system based on adpss
  • Closed-loop test method of generator wide-area damping control system based on adpss

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The closed-loop test method of generator wide-area damping control system based on ADPSS is characterized in that it includes the following steps:

[0034] S1. Use the ADPSS system to build the electromechanical-electromagnetic subnetting scheme of the power grid to be tested to form a mechatronic network and an electromagnetic subnet. According to the subnetting scheme, model each node device in the power grid, and generate power for each of the electromagnetic subnets For the unit, the local power system stabilizer and excitation controller models are established by custom modeling; the analog output interface and analog input interface of ADPSS are configured;

[0035] When constructing the electromechanical electromagnetic sub-network scheme, based on the power flow operation mode of the power grid to be tested, the ADPSS is used to establish the electromechanical-electromagnetic hybrid simulation operation, and the electromechanical transient operation is calculated for ...

Embodiment 2

[0043] In this embodiment, on the basis of embodiment 1, an electromechanical-electromagnetic consistency verification step is added in step S1, and the electromechanical-electromagnetic consistency verification step is specifically:

[0044] After completing the electromechanical-electromagnetic grid separation scheme using ADPSS, set the same operating mode and fault conditions in the electromagnetic transient simulation and electromechanical transient simulation two simulation modes, and compare the active output and power angle oscillation of the generator set in the two simulation modes The curve, the active power curve and the reactive power curve output by the important tie line, judge the error from the deviation of the steady state value and the oscillation frequency and amplitude of the dynamic process. When the error under the two simulation methods is lower than the preset standard, it is considered to be verified Pass, otherwise the verification fails, and the local m...

Embodiment 3

[0047] In this example, an optimal implementation of the present invention is given.

[0048] The wide-area damping control signals obtained on the basis of Embodiment 1 or 2 are respectively output to different generator sets of the virtual grid to be tested established in the ADPSS in step S1. For example, for the generator set of power plant A, input the first wide The domain damping control signal DS1 is used to suppress the 0.7~0.8Hz regional oscillation mode; the second wide-area damping control signal DS2 is added to the local power system stabilizer PSS signal of each unit of the B power plant to suppress 0.3~0.4Hz interval oscillation mode. In order to achieve a comprehensive control effect, the damping ratio of the inter-area and intra-area damping oscillation modes can be improved, consider applying the wide-area damping control signal 1 and wide-area damping control signal 2 to each unit of the A and B power plants at the same time. Above, realize the mutual coordina...

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Abstract

A generator wide area damping control system closed-loop testing method based on an ADPSS comprises the following steps that S1, an electromechanical-electromagnetic grid dividing scheme of a power grid to be tested is set up through an ADPSS system; S2, an important call wire in the grid dividing scheme is defined, voltage signals or current signals on the important call wire are used as wide area analog acquisition, and are converted into wide area damping control signals, and the wide area damping control signals and local PSS signals are used as new PSS signals to act on an excitation controller model after being superposed; S3, the ADPSS system is utilized for simulating various fault modes, and the functions of a generator wide area damping controller are measured. A real power grid model is set up through the real-time simulation platform ADPSS, damping control modes under the various fault modes are simulated, the measurement result is obtained, and a firm foundation is established for popularization and application of the wide area damping control technology in the power grid.

Description

Technical field [0001] The invention belongs to the field of electric power, and relates to a computer-aided simulation method of a power system, and in particular, to a closed-loop test method of a generator wide-area damping control system based on ADPSS. Background technique [0002] ADPSS (AdvancedDigitalPowerSystemSimulator, power system full digital real-time simulation device) is developed by the China Electric Power Research Institute. It can simulate a large-scale power system (1000 units, 10,000 nodes), and it can provide an AC-DC hybrid system. A closed-loop test method for power electronic equipment under the power grid. The document "Power System Fully Digital Real-time Simulation Device" (Power System Technology, Volume 32, Issue 22, November 2008) gives a comprehensive overview of the functions and application prospects of ADPSS. Among them, ADPSS is composed of multiple modules such as electromechanical transient simulation, electromagnetic transient simulation a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B23/02
Inventor 徐琳唐永红刘柏私
Owner STATE GRID CORP OF CHINA
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