CN-122001278-A - Motor driving system filtering device and method based on topological circuit

CN122001278ACN 122001278 ACN122001278 ACN 122001278ACN-122001278-A

Abstract

The invention provides a motor driving system filtering device and a motor driving system filtering method based on a topological circuit. The topology filtering module is formed by alternately arranging a plurality of inductors and capacitors. The parameter adjusting module is used for dynamically adjusting parameters of the capacitor and/or the inductor according to electromagnetic interference frequency in the working environment and controlling capacitance values of the capacitor and/or inductance values of the inductor. The invention solves the electromagnetic interference problem of the motor driving system in a complex electromagnetic environment through the optimized design of the topological structure and the introduction of the parameter adjusting module, improves the robustness and the stability of the system, and is particularly suitable for complex applications such as a nuclear power station reactor pressure vessel inspection device and the like with strict requirements on electromagnetic compatibility.

Inventors

ZHAO ZEYANG
SUN MAORONG
ZHAO CHEN
LI SIYING
TAO ZEYONG
TIAN YE
ZHANG YI
CONG ZHIYUAN

Assignees

国核电站运行服务技术有限公司
上海核工程研究设计院股份有限公司
国电投核能有限公司

Dates

Publication Date: 20260508
Application Date: 20241030

Claims (10)

1. The motor driving system filtering device based on the topological circuit is characterized by comprising a topological filtering module and a parameter adjusting module; the topology filtering module is formed by alternately arranging a plurality of inductors and capacitors; The parameter adjusting module is used for dynamically adjusting parameters of the capacitor and/or the inductor according to electromagnetic interference frequency in the working environment and controlling capacitance values of the capacitor and/or inductance values of the inductor.
2. The topology-based motor drive system filtering device of claim 1, wherein said inductor and said capacitor are arranged in a periodic structure according to a Su-Schrieffer-Heeger model.
3. The topology-based motor drive system filtering device of claim 2, wherein the capacitor is a variable capacitor and the inductor is an adjustable inductor.
4. The topology-based motor drive system filtering device of claim 2, wherein the capacitor is an air variable capacitance or a ceramic variable capacitance.
5. The topology-based motor drive system filtering device of claim 1, wherein the parameter adjustment module comprises a sensor, a signal processing unit, a control unit, and an execution unit; The sensor is used for monitoring electromagnetic interference signals in the working environment in real time; The signal processing unit is used for processing and analyzing the electromagnetic interference signals acquired by the sensor and extracting electromagnetic interference frequency information; The control unit is used for calculating parameter values of a capacitor and an inductor in the topology filtering module according to the electromagnetic interference frequency information output by the signal processing unit and outputting a control instruction; the execution unit is used for adjusting parameters of the capacitor and the inductor according to control instructions of the control unit.
6. The topology-based motor drive system filtering device of claim 5, wherein the parameters of the capacitor comprise plate spacing, plate area, and the parameters of the inductor comprise coil turns, core position.
7. The topology-based motor drive system filtering device of claim 5, wherein the execution unit is a motor or a potentiometer.
8. The topology-based motor drive system filtering apparatus of claim 1, further comprising an interface connection module for connecting the topology filtering module to a motor drive system, the interface connection module being designed according to an interface type of a motor.
9. The topology-based motor drive system filtering device of claim 8, wherein the interfacing module is a threaded connector or a flanged connector.
10. A motor drive system filtering method based on a topology circuit, wherein the method is applied to the motor drive system filtering device based on a topology circuit as recited in any one of claims 1 to 9, and comprises the steps of: according to the working frequency of the motor driving system, the initial value of an inductor and/or a capacitor in the topology filtering circuit is adjusted through a parameter adjusting module; the change of the electromagnetic environment in the working environment is monitored in real time through the parameter adjusting module, and the parameters of the inductor and the capacitor are automatically adjusted according to the electromagnetic interference frequency.

Description

Motor driving system filtering device and method based on topological circuit Technical Field The invention relates to the technical field of motor drive systems, in particular to a motor drive system filtering device and method based on a topological circuit. Background Periodic inspection and maintenance of the reactor pressure vessel of a nuclear power plant is critical to safe operation of the nuclear power plant. Under high-radiation and complex environments, the traditional manual detection mode is difficult to effectively implement due to high operation risk and low detection efficiency, and an automatic detection device gradually becomes the mainstream. The motor drive system is a critical component in an automated inspection device, and its stability and anti-electromagnetic interference capability directly affect the operational reliability of the device. However, electromagnetic interference (EMI) in a high-radiation environment of a nuclear power plant is particularly serious, and if the EMI cannot be effectively restrained, system performance may be reduced, faults may occur, and even potential safety hazards may be generated. To ensure stable operation of the motor drive system in complex electromagnetic environments, filter circuits are critical components. The conventional filter circuit usually relies on traditional passive elements (such as inductance and capacitance) for interference suppression, but the filter has a complex structure and large volume, and is difficult to meet the requirements of modern motor drive systems on compactness and high reliability. In order to solve the above problems, in recent years, a topology-based filtering technique provides a more efficient solution. Disclosure of Invention The invention aims to provide a motor driving system filtering device and method based on a topological circuit, so as to solve the problems, solve the electromagnetic interference problem of a motor driving system in a complex electromagnetic environment through the optimized design of a topological structure and the introduction of a parameter adjusting module, improve the robustness and stability of the system, and be particularly suitable for complex applications such as a nuclear power station reactor pressure vessel inspection device and the like with strict requirements on electromagnetic compatibility. The invention provides a motor driving system filtering device based on a topological circuit, which comprises a topological filtering module and a parameter adjusting module; the topology filtering module is formed by alternately arranging a plurality of inductors and capacitors; The parameter adjusting module is used for dynamically adjusting parameters of the capacitor and/or the inductor according to electromagnetic interference frequency in the working environment and controlling capacitance values of the capacitor and/or inductance values of the inductor. In one embodiment, the inductor and the capacitor are arranged in a periodic structure according to the Su-Schrieffer-Heeger model. In one embodiment, the capacitor is a variable capacitor and the inductor is a tunable inductor. In one embodiment, the capacitor is an air variable capacitance or a ceramic variable capacitance. In one embodiment, the parameter adjustment module comprises a sensor, a signal processing unit, a control unit and an execution unit; The sensor is used for monitoring electromagnetic interference signals in the working environment in real time; The signal processing unit is used for processing and analyzing the electromagnetic interference signals acquired by the sensor and extracting electromagnetic interference frequency information; The control unit is used for calculating parameter values of a capacitor and an inductor in the topology filtering module according to the electromagnetic interference frequency information output by the signal processing unit and outputting a control instruction; the execution unit is used for adjusting parameters of the capacitor and the inductor according to control instructions of the control unit. In one embodiment, the parameters of the capacitor include plate spacing, plate area, and the parameters of the inductor include coil turns, core position. In one embodiment, the actuator is a motor or potentiometer. In one embodiment, the topology circuit-based motor drive system filtering device further comprises an interface connection module, wherein the interface connection module is used for connecting the topology filtering module with the motor drive system, and the interface connection module is designed according to the interface type of the motor. In one embodiment, the interfacing module is a threaded connector or a flanged connector. The invention also provides a motor drive system filtering method based on the topological circuit, which is applied to the motor drive system filtering device based on the topological circuit, and comprises the following step