A kind of lcr filter control method and device
A filtering control and band-pass filtering technology, applied in the field of LCR filtering control methods and devices, can solve problems such as difficulty in applying ideal differential operations, and inability to use process signal reduction in practical differential operations.
Active Publication Date: 2019-12-06
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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[0005] The LCR filter control method and device provided by the embodiments of the present invention solve the problem that ideal differential calculations are difficult to use in actual process systems at present, and practical differential calculations are often used, resulting in actual differential calculations that cannot be used for process signal reduction processing. technical issues
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[0049]The LCR filtering control method and device provided by the embodiments of the present invention solve the problem that ideal differential calculations are difficult to use in actual process systems at present, and practical differential calculations are often used, resulting in actual differential calculations that cannot be used for process signal reduction processing technical problems.
[0050] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the following The described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative effort...
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The embodiment of the invention discloses an LCR filter control method and an LCR filter control device, so as to solve the technical problems that in the current actual process system, ideal differential operation is difficult to realize and difficult to use, actual differential operation is mainly adopted, and thus, the actual differential operation can not be used for reduced order processing on process signals. The LCR filter control method of the embodiment of the invention comprises steps: the preset order, the preset inertia constant and the static gain of a process object are acquired; according to the preset inertia constant of the process object, an LCR band-pass filter parameter is calculated; proportional operation is carried out on an LCR band-pass filter signal corresponding to the LCR band-pass filter parameter, a proportional operation signal is acquired, and according to the acquired process signal and the proportional operation signal of the process object, an approximate one-order reduced signal of the process signal is acquired; and according to the approximate one-order reduced signal of the process signal, a subtraction signal is acquired, proportional integral operation is carried out on the subtraction signal, a control signal of the process object is acquired, and a final process signal is determined according to the control signal.
Description
technical field [0001] The invention relates to the technical field of automatic control, in particular to an LCR filter control method and device. Background technique [0002] With the rise of advanced control theory, the development of classical control theory and signal processing technology, especially the high development of computer technology, has created good objective conditions for the emergence and application of some new technologies. The model is an important premise and basis for the application of modern advanced control theory. In actual engineering, high-order objects commonly exist in industrial systems. Because high-order models are difficult to establish and apply, there are currently many studies on model reduction. Classical control theory is still It has a large development space, and in the actual industrial system, the classic PID control technology is still widely used. Differentiation, actual differential, second-order actual differential, etc. b...
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IPC IPC(8): G05B11/42
CPCG05B11/42
Inventor 陈文李军
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID