A Method of AGC Active Power Distribution Based on Exhaustion in Hydropower Stations

Abstract

A method for allocating active power to AGC of a hydropower station based on exhaustive enumeration, including the following steps: Aiming at the unit distribution mode in which each unit is distributed in different operating areas after AGC allocation, constructing a quantitative function f to reflect the advantages and disadvantages of different AGC allocation results; After allocation, all possible unit distribution methods are exhaustively enumerated, and there are 2 n In the formula, n is the number of units participating in the AGC operation; calculate the upper limit and lower limit of the active power regulation area of ​​the whole station corresponding to the distribution of all units, and screen out the feasible ones for the active power target value of the whole station. Unit distribution mode; for the screened unit distribution mode, use the constructed quantitative function f to calculate its advantages and disadvantages, and select a unit distribution mode with the best calculation result; based on the selected unit distribution mode, calculate The single-unit AGC active power distribution value of each unit can meet the automatic active output control requirements of different large and medium-sized hydropower stations with multiple vibration zones and multiple unit types.

Description

technical field [0001] The invention relates to the technical field of hydroelectric power generation control, in particular to an exhaustive-based AGC active power distribution method for hydropower stations. Background technique [0002] The control of active power output of hydropower stations generally adopts that the active power target value of the whole station is distributed to each hydro-generator unit (referred to as unit) through the automatic generation control function (Automatic Generation Control, referred to as AGC), and then the power adjustment mechanism of each unit The closed-loop adjustment method is performed according to the active power distribution value of the stand-alone AGC. However, in the actual application of various hydropower stations, the automatic power generation control function still has shortcomings such as rough algorithms, lack of integrity, poor connection of each function block, logic mismatch or even conflict between strategies, re...

AI Technical Summary

Problems solved by technology

Although this method has good applicability to hydropower stations with any complex working conditions, and simplifies the amount of calculation in the actual power regulation process through pre-modeling and fast convergence methods, and controls the response time of AGC regulation, its algorithm The design is relatively cumbersome, which inevitably leads to a high complexity of the AGC program, which inevitably brings the cumbersomeness of AGC program writing, debugging, maintenance, modification, optimization and other links, as well as the resulting objective security risks

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