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Method of operation range calculation and judgment after single-vibration-area small hydropower station clustering control

A technology of operating range and cluster control, applied in the direction of single-network parallel feeding arrangement, etc., can solve the problems of cumbersome calculation and heavy workload, and achieve the effect of simple calculation and fast judgment

Active Publication Date: 2016-11-09
ELECTRIC POWER SCI RES INST OF GUIZHOU POWER GRID CO LTD
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method for calculating and judging the operating range of small hydropower clusters in a single vibration zone, so as to solve the problem of selecting an operating area for each hydroelectric unit in the prior art, which is different from the operating area of ​​other units. For the addition operation between the interval numbers, the operation area of ​​several calculations is obtained by union operation, which is the operation range after the cluster, and there are technical problems such as cumbersome calculation and heavy workload.

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  • Method of operation range calculation and judgment after single-vibration-area small hydropower station clustering control

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Embodiment Construction

[0020] A method for calculating and judging the operating range of a small hydropower cluster in a single vibration zone after control, which includes:

[0021] Step 1. Calculate the sum of the rated capacities of all units In the formula: w i is the rated capacity of unit i;

[0022] Step 2. Calculate the sum of the lower limit values ​​of the vibration zones of all units In the formula: w i1 is the lower limit of the vibration zone of unit i;

[0023] Step 3. Calculate the minimum value W of the upper limit value of the vibration zone of all units 2 =min(w i2 ), where w i2 is the upper limit of the vibration zone of unit i;

[0024] Step 4. Calculate the maximum value max(w i2 );

[0025] Cluster control of small hydropower in single vibration areas in the same watershed or close to the geographical environment, and its capacity meets: That is, the sum of the lower limits of the vibration zone of all units plus the maximum value of the minimum unit capacity grea...

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Abstract

The invention discloses a method of operation range calculation and judgment after single-vibration-area small hydropower station clustering control, comprising the following steps: S1, calculating the sum of rated capacities of all units; S2, calculating the sum of lower limits of the vibration areas of all the units; S3, calculating the minimum value of upper limits of the vibration areas of all the units; S4, calculating the maximum value of the upper limits of the vibration areas of all the units; S5, getting a vibration area of small hydropower stations after clustering; and S6, getting the operation range of the small hydropower stations after clustering. In the prior art, one operation area is selected for each hydro-generator unit, the interval number of the operation area of the unit and the interval number of the operation areas of other units are added together, and union operation is performed on the calculated operation areas to get the operation range after clustering. Computation is complex and heavy in workload. The technical problem is solved using the method of the invention.

Description

technical field [0001] The invention belongs to the technical field of hydroelectric power generation, and in particular relates to a method for calculating and judging the operating range of a small hydropower cluster in a single vibration zone after control. Background technique [0002] my country is one of the countries with the most abundant small hydropower resources in the world. However, small hydropower stations are generally located in remote mountainous areas. There are often multiple hydropower stations in the same watershed to form cascaded small hydropower station groups, and there is a lack of coordinated operation and management among the stations. At present, most of the small hydropower stations that have been built in many river basins are developed sporadically without overall planning, and there are great defects in terms of cost, safety, economy, and labor intensity of operators. Centralized scheduling and control of small and medium-sized hydropower st...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/46
CPCH02J3/46
Inventor 文贤馗苏立高晓光肖永林呈辉范强徐梅梅徐玉韬顾威龙秋风
Owner ELECTRIC POWER SCI RES INST OF GUIZHOU POWER GRID CO LTD