A cps-based agc logic control system and method

A technology of logic control and control method, applied in general control system, control/regulation system, adaptive control, etc., can solve the problems of frequent adjustment of generators, increased operating costs, high wear rate of system equipment, etc., and achieve enhanced overall frequency control Performance and operating economy, improved operating efficiency, and reduced wear

Active Publication Date: 2017-03-29
WUHAN UNIV +1
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Problems solved by technology

[0003] The present invention proposes a CPS-based AGC logic control method for the existing AGC control strategy, which is likely to cause frequent adjustment of generators, high wear rate of system equipment, and increased operating costs, as well as possible adverse conditions in the strategy.

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  • A cps-based agc logic control system and method
  • A cps-based agc logic control system and method
  • A cps-based agc logic control system and method

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Embodiment Construction

[0077] The technical scheme of the present invention is clearly and completely described below through example simulation and in conjunction with the accompanying drawings.

[0078] One, at first, introduce the method of the present invention:

[0079] 1. AGC logic control method based on CPS1.

[0080] step 1:

[0081] According to the CPS1 standard assessment principle, the regional control deviation ACE of each control area of ​​the interconnected grid satisfies the inequalities of (1), (2) and (3), and is accompanied by CPS 1 ≥100%, that is to meet the CPS1 standard.

[0082]

[0083]

[0084] CPS1=(2-CF 1 )×100% (3)

[0085] Where: ACE 1m Δf is the rolling average of the regional control deviation of the control area for 1 minute; 1m is the rolling average of the 1-minute frequency deviation in the control area; ε 1 is the root mean square control target value of the interconnected grid for the annual one-minute frequency average deviation, in the interconnec...

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Abstract

The invention particularly relates to an AGC (Automatic Generation Control) logic control system and method based on a CPS (Control Performance Standard). The implementation of the method comprises the following steps of 1) carrying out time sequence real-time rolling linear filtering processing on original data, such as an area control error ACE and a frequency deviation delta f; based on a CPS1, introducing different control threshold values n to adjust an ACE signal, and combining a further correction of amplitude control of the delta f so as to form a logic control module facing to the CPS1 standard; 2) based on a CPS2, setting different control threshold values m to check the ACE signal, and selecting a dynamic calibration method to realize dynamic cooperation between the ACE signal and the delta f so as to implement a logic control module facing to the CPS2 standard; 3) adopting a priority coordination control mechanism to carry out coordination processing on the CPS1 logical control module and the CPS1 logical control module so as to complete integrated optimal control of the AGC signal. According to the AGC logic control system and method, the operating efficiency of an AGC controller is remarkably improved, and the frequency control performance and the operating economy of the system are enhanced.

Description

technical field [0001] The invention relates to the field of power system and automation, in particular to a CPS-based AGC logic control system and method. Background technique [0002] Automatic generation control (AGC), as the main means of controlling the power and frequency of the interconnected power system, not only needs to be able to maintain a constant system frequency and tie-line exchange power, but also needs to follow certain rules to meet the comprehensive requirements of system dynamic characteristics and regulation performance. The domestic traditional AGC control strategies are mainly formulated based on the A1 / A2 standard. After the introduction of the CPS standard, these control strategies are no longer applicable. At present, there are two main improvement ideas, one is to carry out adaptive improvement of CPS standard on the basis of the original control strategy, and the other is to set aside the shackles of A standard and re-establish AGC control strat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B13/04
Inventor 邓长虹翁毅选颜海俊陈磊文贤馗陈晓谨林成王向东赵维兴覃海
Owner WUHAN UNIV
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