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In the new power system, due to the constantly rising proportion of new energy generation and its own uncertainty, anti-disturbance has become the core task of power control of thermal power units. At present, the power control system of thermal power plants continues to use PID controllers, making it challenging to accommodate the needs for deep, continuous, and frequent peak shaving and frequency regulation in thermal power units. The advanced control theory has an outstanding contradiction between theoretical rigor and industrial practicability, in order to make it better applied in power control of thermal power units, the smooth application of linear active disturbance rejection control (LADRC) is realized by using the engineering basis of PID control. By analyzing the structure of LADRC and the transfer function of the feedback loop, the PID realization form of LADRC is defined and verified by Simulink simulation. The simulation and engineering application tests show that the PID implementation of LADRC inherits the outstanding disturbance rejection ability of ADRC. Under the same PID and related parameters, the PID implementation of LADRC shows outstanding suppression ability to all kinds of disturbance signals, and the third-order LADRC has the strongest disturbance rejection ability and the fastest adjustment speed. The PID implementation of LADRC can meet the requirements of power control system of thermal power units, and the control quality is better than that of conventional PID control. The PID implementation of LADRC expands the engineering application space of LADRC.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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