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Primary frequency modulation control method and device based on water turbine simulation intelligent solution

A control method and hydraulic turbine technology, applied in neural learning methods, design optimization/simulation, instruments, etc., can solve problems such as difficult model establishment, and achieve the effect of accelerating control response speed and good anti-interference ability

Pending Publication Date: 2022-04-15
CHINA THREE GORGES CORPORATION
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Problems solved by technology

[0004] In view of the technical problems existing in the background technology, the primary frequency modulation control method and device based on hydraulic turbine simulation intelligent solution provided by the present invention overcomes the deficiencies of the prior art and effectively solves the problems existing in the traditional PID algorithm of hydraulic turbine primary frequency modulation. Efforts are made to solve the defects that the model of the turbine speed control system is difficult to establish due to its nonlinearity and time-varying nature

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  • Primary frequency modulation control method and device based on water turbine simulation intelligent solution
  • Primary frequency modulation control method and device based on water turbine simulation intelligent solution
  • Primary frequency modulation control method and device based on water turbine simulation intelligent solution

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Embodiment Construction

[0060] The preferred solution is as Figure 1 to Figure 2 As shown, a primary frequency modulation control method and device based on hydraulic turbine simulation intelligent solution, including the following steps:

[0061] Step 1: Obtain the power given value P0 from the power given module;

[0062] Step 2: The target power generation module adds the given power P0 and the target power Pf of primary frequency modulation to obtain the actual target control power CP=P0+Pf;

[0063] Step 3: Measure the current working water head H by the water head measurement module;

[0064] Step 4: The gray wolf optimization algorithm is used to find the optimal opening under the same working conditions, and the optimization goal is to minimize the PID output value; specifically:

[0065] According to the gray wolf's social hierarchy and hunting process, construct a mathematical model; the mathematical model of the GWO algorithm includes the following parts: social hierarchy stratification...

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Abstract

The invention discloses a primary frequency modulation control method and device based on water turbine simulation intelligent solution. The method comprises the following steps that a power given value P0 is obtained through a power given module; the target power generation module adds the given power P0 and the target power Pf of the primary frequency modulation to obtain actual target control power CP = P0 + Pf; measuring a current working water head H by a water head measuring module; the optimal opening degree under the same working condition is searched through a grey wolf optimization algorithm, and the optimization target is that the PID output value is the minimum; and after the optimal opening degree under the same working condition is obtained, a simulation model is formed through a GWO-BP neural network. The defects in the prior art are overcome, the problems existing in a traditional PID algorithm for primary frequency modulation of the water turbine are effectively solved, and the defect that a model is difficult to establish due to nonlinearity and time-varying characteristics of a water turbine speed regulation system is overcome.

Description

technical field [0001] The invention belongs to the technical field of governor control, in particular to a primary frequency modulation control method and device based on hydraulic turbine simulation intelligent solution. Background technique [0002] The existing technology, that is, the PID algorithm, is difficult to meet the requirements of primary frequency regulation, and its robustness is obviously insufficient in the face of changing working conditions of hydropower plants. The existing patent document CN111997825A discloses a power / frequency control method for a water turbine governor. The disclosed content is: the frequency deviation signal is converted into a target power signal and superimposed on the power given signal to form the actual target given power, and then Compared with the actual power signal, the control deviation is obtained for control; in this way, the frequency power and power control method are completely consistent with the process; therefore, ...

Claims

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Application Information

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IPC IPC(8): G06F30/27G06N3/00G06N3/04G06N3/08
Inventor 邓友汉余志强王本红邹祖冰李青茂朱斌黄兴张晓萌周立成翟玉杰王罗苏营
Owner CHINA THREE GORGES CORPORATION
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