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Automatic power generation control method

A technology of automatic power generation control and power generation system, applied in circuit devices, electrical components, information technology support systems, etc., can solve the problems that calculation and control methods are rarely discussed, and achieve the effect of improving economy, safety and smooth adjustment.

Inactive Publication Date: 2012-10-03
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, most domestic AGC-related technologies only discuss control modes and assessment strategies, and most of the papers are based on simulation examples, but there are few detailed and specific calculation and control methods in actual power grid operation control.

Method used

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  • Automatic power generation control method
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  • Automatic power generation control method

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0046] Examples (see figure 1 , 2 ):

[0047] The concrete steps of this embodiment are as follows:

[0048] 1. Acquisition, calculation and filtering of ACE

[0049] Each operating unit in the power grid, including various equipment in power plants and substations, has terminals (SCADA systems) responsible for collecting data, and these terminals transmit the collected data to the provincial dispatching automation computer room through the optical fiber network. Then the provincial commissioner converts and calculates the above data to obtain various data for power grid operation control, ACE is one of them. The regional grid adjustment of the North China Power Grid adopts the TBC control method.

[0050] ACE=ΔP+KΔF (1)

[0051] Among them, ΔP is the current tie-line power deviation, K is the grid active power-frequency characteristic value of the southern Hebei power grid, and ΔF is the current frequency deviation value.

[0052] In order to avoid too frequent AGC contro...

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Abstract

The invention relates to an automatic power generation control method, which is implemented by an automatic control power generation system, namely an AGC system. The method comprises the following steps: (1) acquiring and computing area control error (ACE) of a power grid by using an SCADA system; (2) filtering the value of ACE; (3) setting an ACE regulation dead zone; (4) computing a proportional regulating variable; (5) computing a load ramp auxiliary regulating variable Pset2; (6) computing a sudden force application regulating variable Pset3; (7) computing an error integral regulating variable Pset4; and (8) distributing the output power of the machine set by using a unit value. The method has the advantages of quickly, efficiently and smoothly regulating the active power balance of the power grid, and greatly improving the economy and safety of the operation of the power grid.

Description

technical field [0001] The invention relates to an automatic power generation control method, which belongs to the automatic power generation control under A1 and A2 control standards. Background technique [0002] Automatic Generation Control is referred to as AGC (Automatic Generation Control), which is an important part of the energy management system (EMS). , to realize the automatic control of generator power. [0003] As part of the North China-Central China Interconnection Grid, the Southern Hebei Power Grid used to mainly use manual commands to regulate power plant output. The power grid dispatching center synthesizes the frequency error and the net exchange power error of the inter-network tie line through the data collected by each automation terminal to form the Area Control Error (Area Control Error) of the Southern Hebei Power Grid, hereinafter referred to as ACE. The on-duty dispatcher issues unit output instructions to the power plant by telephone, and distr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J13/00
CPCY04S10/40
Inventor 赵自刚贺楠杨兴宇陈大军黄定成杨立波郑广辉杨磊林宪平
Owner STATE GRID CORP OF CHINA