4results about How to "Short adjustment time" patented technology

The invention provides an anti-interference control method for the concentration of a main reactant in a continuous stirring reaction kettle process, belongs to the technical field of chemical process control, and solves the problem that in the chemical process of producing cyclopentanol by catalyzing electrophilic water with cyclopentadienoic acid, the concentration of the main reactant is not influenced. The technical problem that the concentration of a main reactant is difficult to track a set value without steady-state errors under the conditions of fluctuation of feeding concentration, uncertainty and external disturbance of the continuous stirring reaction kettle is solved. According to the technical scheme, the method comprises the steps of constructing a model pre-estimation compensator and an anti-interference control structure, designing a four-dimensional decision model, carrying out parameter collaborative optimization by adopting a multi-target genetic optimization algorithm, and carrying out optimal solution selection based on a TOPSIS method. Under the condition of feed concentration fluctuation, the dynamic response speed and the anti-interference capability of the system can be remarkably improved, and faster adjustment time, smaller overshoot and stronger robustness can be realized in linear and nonlinear models.

The invention discloses an air pre-heater temperature control optimization method for thermal power generation, and belongs to the technical field of control optimization, and the method comprises the steps: constructing an air pre-heater inlet air temperature PID control system, obtaining an actual air temperature feedback value through an inlet air temperature monitoring module, and transmitting the actual air temperature feedback value to an inlet air temperature error calculation module; the inlet air temperature error calculation module receives the target temperature value and compares the target temperature with a feedback value so as to calculate and output a real-time error signal and transmit the real-time error signal to the inlet air temperature PID controller module, and the inlet air temperature PID controller module subjected to parameter optimization calculates a control quantity according to the real-time error signal; and the control quantity is output to the inlet air temperature adjusting module so as to adjust the inlet air temperature of the air pre-heater. The risk of corrosion and dust deposition of the low-temperature section of the air pre-heater can be effectively reduced, and the high use value is achieved for guaranteeing safe operation of a thermal power generation system and improving the fine operation level.

This invention discloses a programmable digital delay circuit, which consists of N basic modules connected in series. Each basic module includes a delay module and a 2-to-1 multiplexer. In each basic module, the input terminal of the delay module and one input port of the 2-to-1 multiplexer are connected to the input terminal of the current basic module to receive the input signal of the current basic module. The output terminal of the delay module is connected to the other input port of the 2-to-1 multiplexer. The control signal enable port of the 2-to-1 multiplexer is used to receive a control signal to select one input signal from multiple input signals. The output terminal of the 2-to-1 multiplexer outputs the selected input signal and uses it as the input signal of the next basic module. The delay circuit of this invention is composed entirely of pure digital logic, has high dynamic adjustment flexibility, and a wide delay adjustment range.

The application relates to the technical field of energy management, in particular to an electric dust removal intelligent energy management system, which comprises an acquisition module used for acquiring a historical data set in the running process of an electric dust removal system, wherein the historical data set comprises parameter adjustment values of a high-frequency power supply of an electric dust remover under different unit load fluctuations and first dust removal evaluation values; a division module used for dividing the parameter adjustment values and the corresponding dust removal evaluation values into normal data sets and abnormal data sets; a determination module used for establishing a minimum adjustment time target function and a maximum dust removal efficiency target function and determining optimal adjustment parameters based on the normal data sets and the abnormal data sets; and a construction module used for constructing an electric dust removal system management platform based on the optimal adjustment parameters. The application solves the technical problem that there is no effective basis for scientifically adjusting the parameters of the high-frequency power supply of the electric dust remover, the timeliness of operation and control cannot be achieved, and the dust removal effect of the equipment cannot be improved.