Multi-level irrigation channel automatic control method based on model prediction control algorithm

A technology of model predictive control and channels, applied in botany equipment and methods, horticulture, cultivation, etc., can solve the problems of insufficient design and solution, and limit the effective application of MPC

Active Publication Date: 2019-01-15
TSINGHUA UNIV
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Problems solved by technology

However, the design and solution of the model predictive control algorithm under the current co...

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  • Multi-level irrigation channel automatic control method based on model prediction control algorithm
  • Multi-level irrigation channel automatic control method based on model prediction control algorithm
  • Multi-level irrigation channel automatic control method based on model prediction control algorithm

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Embodiment Construction

[0112] The present invention proposes an automatic control method for irrigation of multi-level canals based on a model predictive control algorithm, which will be further described in detail below in conjunction with the accompanying drawings and specific implementation.

[0113] A kind of automatic control method of irrigation multi-stage canal based on model predictive control algorithm proposed by the present invention, the overall flow of the method is as follows figure 1 shown, including the following steps:

[0114] 1) Establish an irrigation multi-level channel control model, the specific steps are as follows:

[0115] 1-1) Determine the channel to be controlled, and collect the design data and operating condition data of the channel;

[0116] In the present invention, the channel to be controlled is the irrigation multi-level channel system of any irrigation area. For the trapezoidal cross-section channel composed of f channel pools, the channel design data to be col...

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Abstract

The invention provides a multi-level irrigation channel automatic control method based on a model prediction control algorithm, which belongs to the field of irrigation water transmission and distribution automatic control and agricultural water resource management. The design data and operation condition data of the multi-level irrigation channel are firstly acquired, and a channel control modelis established and converted to a state space equation form; the future output of the irrigation channel water transmission and distribution system is then predicted, and according to the operation conditions, a model prediction control algorithm object function and recognition constraints are established; and finally, the optimal control quantity is obtained by optimization solution, and safe andeffective automatic control on the multi-level irrigation channel is realized. the model prediction control algorithm is designed based on the design data and the operation conditions of the multi-level irrigation channel, known water intake changes and constraints in operation of the multi-level irrigation channel can be effectively handled, the method can be used for automatic control design onthe multi-level irrigation channel, safe and reliable water supply service can be ensured, and efficient management and utilization of water resources in irrigation areas can be effectively realized.

Description

technical field [0001] The invention belongs to the fields of automatic control of irrigation water transmission and distribution and management of agricultural water resources, and in particular relates to an automatic control method for irrigation multi-stage channels based on a model predictive control algorithm. Background technique [0002] In the current water resource utilization structure, agricultural water accounts for the largest proportion, and agricultural water use accounts for about 70% of the total water use worldwide. A large amount of waste of resources also leads to the inability to provide efficient and reliable water supply services for water users, resulting in inefficient allocation and low utilization of water resources. About 20% to 30% of the water loss is due to water loss in irrigation channels. It is caused by unreasonable scheduling operation. The automatic control of water transmission and distribution of irrigation canals, through real-time m...

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Application Information

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IPC IPC(8): A01G25/16
CPCA01G25/16
Inventor 郑志磊王忠静徐国印蒋光昱张子雄刘晋龙索滢
Owner TSINGHUA UNIV
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