In-plant economic operation method based on static load distribution table

A static load and economical operation technology, applied in the field of in-plant economical operation based on the static load distribution table, can solve problems affecting the accuracy and timeliness of hydropower stations, and increase the difficulty of economical operation, so as to overcome the calculation scale and complexity, avoid Falling into a local optimal solution, the effect of high-efficiency calculation

Pending Publication Date: 2022-02-08
GUIZHOU WUJIANG HYDROPOWER DEV
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Problems solved by technology

On the other hand, under the background of vigorously developing clean and renewable energy, new energy represented by scenery will be further developed in the future, but new energy has significant volatility, randomness, and intermittency, which brings serious problems to the stable operation of the power system. Larger risks lead to uncertain factors in the power grid's demand for hydropower station loads, thus affecting the accuracy and timeliness of economic operation optimization calculations of hydropower stations, which intensifies the difficulty of economic operation to a certain extent

Method used

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  • In-plant economic operation method based on static load distribution table
  • In-plant economic operation method based on static load distribution table
  • In-plant economic operation method based on static load distribution table

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Embodiment 1

[0072] Such as figure 1 As shown, in this embodiment, a plant economic operation method based on a static load distribution table is provided, including the following steps,

[0073] S1. Establish a static load distribution model and determine the model solution algorithm;

[0074] S2. Discretize the feasible output space of the hydropower station with a certain accuracy under different water heads, solve the optimal distribution scheme of all discrete loads according to the flow characteristic curve of each unit, and establish the optimal static load distribution table under each water head;

[0075] S3. Find the load distribution plan corresponding to the actual load command in the optimal static load distribution table under each water head, so as to realize the optimal distribution in the current period.

[0076] In this embodiment, step S1 specifically includes the following content,

[0077] S11. According to the given load requirements, a load static distribution mode...

Embodiment 2

[0127] In this embodiment, taking the in-plant economic operation of Wujiangdu Hydropower Station as an example, the static load distribution method of the present invention is used to study the load distribution of Wujiangdu Hydropower Station to illustrate the effectiveness and rationality of the present invention.

[0128] Wujiangdu Hydropower Station is located in Zunyi City, Guizhou Province. It is the fourth level of cascade hydropower station on the main stream of Wujiang River. The total installed capacity of Wujiangdu Hydropower Station is five 250MW units, with an installed capacity of 1250MW. Units #1, #2, and #3 are of the same model, and units #4 and #5 are of the same model. The characteristics of the units are shown in Table 1.

[0129] Table 1 Characteristics of each unit of Wujiangdu Hydropower Station

[0130]

[0131] The flow characteristic curve of the unit represents the relationship between the output (N) and water consumption (Q) of the unit under di...

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Abstract

The invention discloses an in-plant economic operation method based on a static load distribution table, and the method comprises the following steps: S1, building a load static distribution model, and determining a model solving algorithm; S2, discretizing a feasible output space of the hydropower station with certain precision under different water heads, solving an optimal distribution scheme of all discrete loads according to a flow characteristic curve of each unit, and establishing an optimal static load distribution table under each water head; and S3, searching a load distribution scheme corresponding to the actual load instruction in the optimal static load distribution table under each water head to realize optimal distribution of the current time period. The method has the advantages of overcoming the limitation of the calculation scale and complexity of a traditional in-plant economic algorithm, avoiding falling into a local optimal solution, improving the operation efficiency and guaranteeing the real-time dispatching operation of a power station.

Description

technical field [0001] The invention relates to the technical field of optimal scheduling of hydropower energy, in particular to an economical operation method in a plant based on a static load distribution table. Background technique [0002] The economic operation of hydropower plants is an important link in the implementation of hydropower energy economic optimization dispatching. Under the new situation of accelerating the development and utilization of clean energy in my country, the economic operation of hydropower stations is of great importance to improve the power generation efficiency of hydropower stations and make full use of water energy resources. significance. While my country's hydropower industry has achieved world-renowned achievements, major changes have taken place in the scale of the hydropower system, operating conditions, and coordination of hydropower. New scheduling features such as restricted area control and more complex operational requirements are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06G06F30/20
CPCG06Q10/0631G06Q50/06G06F30/20G06F2111/10G06F2111/04
Inventor 徐伟闻昕朱喜周金江葛勇鞠宏明陈建洪杨康胡强蔚孙守艺甘怀健石建明张玉吉
Owner GUIZHOU WUJIANG HYDROPOWER DEV
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