AGC load decoupling control method based on signal homology and automatic optimization device
A decoupling control and signal technology, applied in the field of automatic optimization devices, can solve problems such as deviation of actual flow characteristics of high-profile doors, rise in tile temperature, instability of unit adjustment, etc., to optimize the AGC control model and improve the KP value. Effect
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Embodiment 1
[0051] This embodiment provides an AGC load decoupling control method based on the same source of signals. The primary frequency modulation module provides the primary frequency modulation function, and the steam turbine unit adjusts its own load; the control strategy based on the dynamic adjustment of the grid power change is adopted, and the control logic is built into the device. Internally, realize the seamless connection of signal acquisition and control, directly output control commands, and output frequency-modulated power signals to the DCS system 150; adopt a control strategy based on dynamic adjustment of grid power changes, collect frequency signals from PMU110 or generator hard-wired 120, Targetedly adopt different action amplitudes for different frequency differences of the power grid, and send frequency modulation signals to DCS and DEH system 160 at the same time after device calculation, and directly take over the primary frequency modulation function in DCS to e...
Embodiment 2
[0053] The difference between this embodiment and Embodiment 1 is that the frequency signal sensor 130 collects the grid frequency signal at a high rate and with high precision; the control logic module 140 realizes the seamless connection between signal acquisition and control, and directly outputs control instructions; the DCS system 150 Summarize the signals uploaded by the PMU 110 and the generator hard-wired 120; the DEH system 160 controls the steam turbine start, stop, normal operation and work under accident conditions.
[0054] The control logic module 140 realizes the seamless connection of signal acquisition and control, and directly outputs control instructions. At the same time, the control logic module 140 includes data screening and correction, thereby improving the efficiency of signal acquisition and control, and outputting control instructions more accurately:
[0055] The specific operation steps of the screening are: the data collected by the frequency signa...
Embodiment 3
[0062] The difference between this embodiment and Embodiment 1 is that the real-time data collection module 211 includes a modbus program 212 and an RTU mirror program 213; The collection of DCS system 150 data; Described RTU image program 213, after receiving a data packet that uploads from network card from listening module, receive packet process definition according to configuration, and the validity of RTU data packet standard protocol detection data packet , including the integrity of the data packet, whether to repeat further checks, if an error occurs, it is considered that the data packet is invalid, and it is discarded; the data analysis module 214 collects the data packet for the real-time data collection module 211RTU mirror program 213 , intercept the location field according to the rules defined in the configuration file, and carry out engineering quantity transfer to the analyzed data; write the processed data into the database, and return the result to the RTU m...
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