57 results about "Loop design" patented technology

The invention relates to the technical field of aero-engines, and discloses an automatic design method for aero-engine turbine blades, which analyzes design requirements through a language large model, combines a retrieval enhancement technology and a turbine blade expert knowledge base, performs interdisciplinary coupling verification by utilizing a step-by-step reasoning template, and generates and optimizes part design schemes and parameters. And then calling parametric modeling and an AI simulation agent model to carry out multi-physics field prediction, comparing a result with a requirement, if the result meets the requirement, outputting design, otherwise, automatically iterating and adjusting parameters until the parameters reach the standard or reach the maximum number of iterations. According to the method, end-to-end intelligent closed-loop design from design requirements to design results can be realized, manual intervention is reduced, a design scheme meeting performance requirements can be quickly generated, the design efficiency can be improved, the design cost can be reduced, and the design quality can be improved.

The invention relates to the technical field of network security, and discloses a network security event script development method and device and a storage medium, and the method comprises the steps: obtaining a corresponding attack scene, a defense strategy and a development node from a preset script material library; running a preset development model, inputting the attack scene, the defense strategy, the node type, the node function and the development node into the development model, and generating a trial version event script; and verifying the defense effect of the trial version event script through script trial operation, dynamically replacing the development node based on a verification result, and outputting a formal version event script. The device and the storage medium correspond to the method. Through the closed-loop design of development model construction, intelligent script generation, multi-dimensional defense evaluation and dynamic replacement optimization, the problems of high manual dependence, low response speed, one-sided defense effect and the like in traditional network security script development are solved, and the automation level, real-time adaptability and resource efficiency of network security event response are improved.

The invention discloses a lightweight piston thermal-structure coupling stability gradient design method, and relates to the technical field of internal combustion engine pistons, and the lightweight piston thermal-structure coupling stability gradient design method comprises the following steps: constructing an asymmetric load adaptive gradient structure, establishing a multi-physical field coupling stability criterion system, and implementing an intelligent response type gradient design process; according to the method, the limitation of traditional symmetric design and static analysis is broken through by constructing an asymmetric load adaptive gradient structure, establishing a multi-physics coupling stability criterion and combining an intelligent response type closed-loop design process based on a convolutional neural network, and the stability of the multi-physics coupling stability criterion is improved by utilizing mechanisms such as negative Poisson's ratio dynamic softening, inertial mass tuned damping and cross-scale interface strengthening. And deformation energy homogenization and dynamic stiffness self-adaptive regulation and control are achieved, the problems of local-overall response mismatch and steady-state-dynamic model disjunction are solved, real-time feedback regulation is introduced for the first time, and the thermal-structural coupling stability of the lightweight piston under the asymmetric working condition is improved through structural function integration.

The invention discloses a power grid system, a control device of an energy storage converter, a control mode switching method and device of the energy storage converter and a medium, and the switching method comprises the steps: obtaining a first switching instruction in real time when the energy storage converter works in a grid following mode; the first switching instruction comprises an instruction for switching from a network following mode to a network construction mode; when a first switching instruction is obtained, determining a pre-synchronization signal of a network construction mode according to a first parameter of the energy storage converter in a network following mode; the first parameter at least comprises virtual impedance; the pre-synchronization signal at least comprises a synchronization angle, a current control ring reference initial value, a modulation voltage initial value and a voltage control ring reference initial value; and switching the working mode of the energy storage converter from a network following mode to a network construction mode according to the pre-synchronization signal. According to the technical scheme, the flexibility of loop design is improved, the electric energy quality in different modes is considered, the grid-connected stability is improved, the rapidity and stability of control mode switching are improved, and the power fluctuation in the switching process is reduced.

The invention relates to the technical field of nuclear power safety monitoring, in particular to an annular 18F content detection method based on an array detector, and aims to improve the accuracy and efficiency of nuclear power station primary loop pressure boundary leakage monitoring. According to the device, through a double-loop design, 18F aerosol contained in the air in the containment is alternately filtered and detected, and continuous monitoring is realized. The detector group is installed around a pipeline and comprises a cuboid, prismatic table structure or annular BGO crystal detector array, and Monte Carlo simulation optimization design is utilized, so that the detection efficiency of 18F is remarkably improved, and meanwhile, the inhibition capability of background radiation is enhanced. Compared with the traditional method, the method has the characteristics of high signal-to-noise ratio, high detection efficiency and high sensitivity, can monitor the leakage condition of the primary circuit in an early stage and in real time, and ensures the safe operation of the nuclear power station.

The invention relates to the field of electronic competition and data processing, and discloses a competition dynamic priority grouping and intelligent arrangement system, which comprises an event twinborn body construction module used for aggregating multi-modal data in real time and constructing a competition panoramic digital mirror image; the dynamic narrative position potential field generation module is used for quantifying and modeling multi-dimensional narrative values of all potential games in the future, such as quick cold, perennial enemy and the like, on the basis of event twinborn body data; the intelligent arrangement decision-making module takes the competition state and the narrative position potential field as input, and outputs an optimal arrangement scheme by taking maximization of competition fairness, audience participation degree and narrative value as targets through a reinforcement learning algorithm; and the narrative intervention module is used for identifying narrative opportunity points by analyzing the potential field gradient and generating an executable operation strategy to actively improve the competition attraction. Through the closed-loop design of "intervention-feedback-enhancement", the system can be continuously self-optimized, and the ornamental value and commercial value of the competition are significantly improved.

The invention discloses a smart home multi-device linkage power utilization control method based on MOS tubes, and belongs to the technical field of smart home control. The digital processor is used as a core, the built-in numerical control module and the data processing unit are matched, the on-off state of the MOS tube is accurately regulated and controlled in combination with a program control algorithm, fine management of power utilization parameters of intelligent household equipment is achieved, the limitation that traditional control response is lagged and poor in adaptability is broken through, rated parameters and real-time requirements of the equipment are dynamically matched, and the power utilization efficiency is improved. The optimal operation of equipment is guaranteed to prolong the service life, invalid energy consumption is reduced, a high-precision foundation is laid for multi-equipment cooperative linkage, the stability and energy efficiency of a system are improved, multi-scene linkage logic is preset by means of a logic state machine, and rapid switching and reliable execution of multi-scene linkage are realized by matching with an application selection switch of an MOS tube array structure. Scene requirements are automatically adapted, and through independent loop control, fault detection and standby loop design, the problems that linkage switching is tedious and the fault influence is large are solved.

The invention relates to the technical field of data center heat management, and particularly discloses a double-loop heat recovery immersed data center cooling system, which comprises an immersion cooling cabin, a heat recovery module, a heat recovery module, a heat recovery module and a heat recovery module, wherein the immersion cooling cabin is used for installing a server circuit board in an immersion manner; the cooling liquid circulating system is used for removing core heat of the server; a main circulating loop is formed by a variable-frequency circulating pump, a precision filter, a cooling liquid conveying valve, a spraying device, an immersion cooling cabin, a cooling liquid return valve and a refrigerating unit which are connected in sequence; the waste heat recovery cooling system is independent of the main loop and is connected to the heat storage tank through a heat exchange pipe immersed in cooling liquid, a waste heat adjusting valve and a water pump to form a secondary loop for extracting medium and low temperature waste heat; and the intelligent regulation and control module is used for collecting data and outputting a control instruction. According to the system, through immersed direct heat exchange and independent double-loop design, cooperation of server core heat dissipation and waste heat recovery is achieved, and the heat dissipation efficiency and the energy comprehensive utilization level are improved.

A voltage regulation device includes: a first low-dropout (LDO) regulator, a second LDO regulator and a signal coupling circuit. The first LDO regulator is configured to receive an input voltage of the voltage regulation device and accordingly generate and stabilize an output voltage of the voltage regulation device. The second LDO regulator is coupled in parallel with the first LDO regulator, and configured to provide supplementary regulation to further stabilize the output voltage. The signal coupling circuit is coupled between the first LDO regulator and the second LDO regulator, configured to apply a voltage provided by second LDO regulator to the first LDO regulator, thereby modulating an operation of the first LDO regulator.

The invention discloses a large language model agent system and method and related equipment. The large language model agent system comprises an input analyzer module, a strategy generation module, an execution controller module, a task result evaluation module, an reflection module and a strategy rewriting module, and a self-adaptive optimization closed loop for task execution is formed through the reflection module and the strategy rewriting module. Wherein the reflection module can generate a report containing failure reasons, and the problem of failure diagnosis is solved; the strategy rewriting module optimizes a plan according to a report, adjusts tool calling, and realizes self-learning and strategy reconstruction; the closed-loop design forms a complete cognitive process, and an input analyzer guarantees the stability of prompt. According to the system, the task completion rate, the execution stability and the scene adaptability are remarkably improved, the robustness and the error tolerance in a multi-step complex task are particularly enhanced, and the key blank of an existing language model agent system in the aspects of self-reflection and self-optimization is filled.

The invention relates to a rectifying tower double-temperature-difference control system design method based on an average absolute variation amplitude index. The invention aims to solve the problems that the coupling relation between control loops is not systematically considered when a reference plate of double temperature difference of each loop is selected in a traditional design method of a double temperature difference control system, and upper and lower temperature differences formed by sensitive plates of each loop and upper and lower reference plates are not coordinated and optimized. The design method comprises the following steps of: firstly, analyzing and selecting an inflection point near a sensitive plate as a reference plate position by utilizing ASVM curve characteristics; secondly, optimizing the upper reference plate or the lower reference plate by adopting a horizontal matching strategy; by optimizing the design of the double-temperature-difference control loop, the product quality control quality of the rectifying tower is remarkably improved, and the double-temperature-difference control loop can be widely applied to the design of double-temperature-difference control systems of conventional rectifying towers, isolation wall rectifying towers and other complex rectifying towers.

The invention discloses a control method and device of an aviation turbine hybrid engine, and realizes real-time identification and self-adaptive switching control of power modes and stable transition of power output in a multi-mode switching process. A complete state monitoring and safety judgment closed loop is constructed, and the overall energy efficiency of the power system and the flight mission matching capacity are improved. Furthermore, by optimizing a power mode switching strategy and a control algorithm, smooth switching of the power modes of the aviation turbine hybrid engine is achieved, power interruption and fluctuation are avoided, and flying stability and safety are improved. A closed-loop design is adopted by a safety monitoring and emergency control mechanism, the system state is kept stable and controllable when abnormity occurs, and a complete data basis is provided for subsequent ground maintenance, remote diagnosis and flight safety evaluation.

The utility model discloses a parabolic radar jammer antenna servo control device, which relates to the technical field of radar jammers and comprises an antenna, the antenna is connected with a servo turntable display control unit, and the servo turntable display control unit is electrically connected with a display control computer. The servo turntable display control unit comprises an antenna control unit, a network switch, a shaft angle encoder and a servo driving unit; the servo driving unit comprises a motor, a motor controller, a control protection circuit, a direct current power supply and a distribution line; the servo driving unit is a rotating speed and current double-closed-loop speed regulation system. According to the utility model, the control protection and driving circuits are reasonably adopted, so that the safety, the response speed and the tracking precision of the system are improved; a double-loop design is adopted, a current loop provides a control object with a wide frequency for a speed loop, and the speed loop improves the low-speed stability of the system, expands the speed regulation range of the system, improves the disturbance resistance of a load, and provides a control object with a wide frequency for position control.

The embodiment of the invention discloses a strategy management method and device, a storage medium and a terminal. On the basis of a cache data execution strategy, near-end execution logic is adopted, so that a strategy engine completes total calculation locally in a system, real-time dependence on far-end service is relieved, and end-to-end processing time consumption is further reduced. By constructing a double-layer heterogeneous cache barrier, when the first cache is abnormal, the first cache is automatically switched to the second cache to read strategy data, so that automatic fault isolation and service degradation are realized, and the service robustness and continuity are ensured. According to the invention, a bottom layer support mechanism of timing synchronous update double caches decouples data synchronization and use, periodic batch synchronization replaces real-time query, and a whole set of process closed-loop design is adopted, so that the problems of high delay, single-point fragility and uneven resource load under a centralized architecture are systematically solved, and finally, the strategy execution capability with both high performance and high availability is achieved.

The present application relates to the technical fields of semiconductor automation testing, in particular to a PMU and reference voltage source dual-function circuit based on ATE testing, comprising an AD5522 chip, a function switching module, a multi-DUT expansion module, a precision optimization module and a control module; the whole adopts single chip function multiplexing design, solves the pain point of large PCB space occupation, achieves the effect of significant space reduction, adopts single PMU multi-DUT expansion design, solves the pain point of high DUT test cost, achieves the effect of significant test cost reduction, adopts Kelvin four-wire and feedback closed loop design, solves the problem of low reference voltage precision, adopts relay switching and programming control design, solves the problem of poor function flexibility.

The utility model discloses a kind of multi-loop processing CV mode electronic load instrument, it includes main control module, main power module, auxiliary power module, display module, button module, power amplifier module, communication board module and interface module.Main control module is core control unit, contains instrument amplifier, and difference proportional circuit, integrated operational amplifier circuit, advance adjustment circuit, lag adjustment circuit and analog switch, different input signal characteristics are adapted by flexible switching adjustment mode.The main power module and auxiliary power module provide stable power supply respectively;Display module and button module form man-machine interface;Power amplifier module drives high-power MOS tube to maintain constant voltage output;Communication board module supports multiple communication protocols;Interface module provides physical connection port for external equipment.The utility model significantly improves system stability and adaptability through multi-loop design, suitable for a variety of application scenarios.

The application relates to the technical field of aero-engines and discloses an automatic design method for a turbine blade of an aero-engine, which comprises the following steps: analyzing design requirements through a language large model, combining retrieval enhancement technology with a turbine blade expert knowledge base, utilizing step-by-step reasoning templates to perform cross-disciplinary coupling verification, generating and optimizing a component design scheme and parameters, subsequently calling a parameterized modeling and an AI simulation agent model to perform multi-physical field prediction, comparing the result with requirements, outputting a design if the requirements are met, and otherwise automatically iteratively adjusting parameters until the requirements are met or the maximum number of iterations is reached. The application can realize end-to-end intelligent closed-loop design from design requirements to design results, reduce manual intervention, quickly generate a design scheme meeting performance requirements, improve design efficiency and reduce design cost, and improve design quality.

The invention discloses a control method, device and equipment for a four-switch buck-boost converter, and the method comprises the steps: obtaining the current input voltage and output voltage of the four-switch buck-boost converter, and generating a loop regulation quantity based on the output voltage and reference voltage after passing through a loop; the control period of the inductive current of the four-switch buck-boost converter is obtained; when the control period is smaller than or equal to a threshold value, the four-switch buck-boost converter is adjusted to be in a fixed-frequency intermittent conduction mode, and the time of the second stage of the inductive current is adjusted according to the loop adjusting quantity, so that the output voltage is kept stable; when the control period is larger than a threshold value, the four-switch buck-boost converter is adjusted to be in a frequency conversion continuous conduction mode, and the time of the first stage of the inductive current is adjusted according to the loop adjusting quantity, so that the output voltage is kept stable. According to the invention, ZVS can be realized while the difference of gains in different modes is reduced and the difficulty of loop design is reduced, and the optimal efficiency can be ensured.

The embodiment of the specification discloses a policy management method, device, storage medium and terminal. Based on the cache data execution policy, the near-end execution logic is adopted, so that the policy engine completes the full calculation locally in the system, and the real-time dependence on the remote service is released, and the end-to-end processing time is further compressed. By constructing a double-layer heterogeneous cache barrier, when the first cache is abnormal, the second cache is automatically switched to read the policy data, the automatic isolation of faults and the degradation of services are realized, and the service robustness and continuity are guaranteed. The bottom supporting mechanism of the double cache synchronously updated at a fixed time decouples data synchronization and use, and replaces real-time query with periodic batch synchronization. Through the closed-loop design of the whole process, the problems of high delay, single-point vulnerability and uneven resource load under the centralized architecture are systematically solved, and finally the policy execution capability with high performance and high availability is achieved.

The invention relates to the technical field of temperature control systems and discloses a temperature control system based on double-loop design and application, the temperature control system comprises a case, a plate heat exchanger and a cooling unit, the plate heat exchanger and the cooling unit are located on one side in the case, and a system pipeline is arranged in the case; the liquid-phase heat dissipation loop system comprises a water pump, a second condenser, a confluence plate and an electronic flow divider which are sequentially connected through pipelines; the double-loop design is adopted, heat exchange is achieved through the central plate heat exchanger, and the first loop is a liquid-phase heat dissipation loop system; and the second loop is a gas-phase refrigeration loop system. The two loops can realize heat exchange through the central plate heat exchanger, the scheme can effectively reduce the refrigeration power required by the second loop, can meet the same temperature rise requirement, and has the advantages of smaller size and lighter module weight compared with other schemes; and under the condition that the size / weight is reduced, the device can be used in application scenes with high requirements on high-power heat dissipation and temperature rise.

The application discloses a current-type SVG control method based on improved DC bus voltage synchronization, which comprises the following steps: based on synchronous outer loop equivalent analysis, the current control type SVG is equivalent to a power synchronization loop based on a phase-locked loop synchronization loop; according to the relationship between the DC bus voltage of the SVG and the output active power, the power synchronization loop is equivalent to a DC bus voltage synchronization loop; on the basis of the DC bus voltage synchronization loop, an improved DC bus voltage synchronization outer loop that integrates a phase-locked loop is designed; a detection method based on the instantaneous reactive power theory is adopted to realize reactive current detection and complete the design of a reactive power compensation loop; a quasi-proportional resonant controller QPR and a proportional integral controller PI are adopted to design a current control inner loop; and the above loop designs are combined to jointly construct a control system of the current-type SVG, so that stable control of the current-type SVG is realized. The application can improve the stability under a weak power grid and help the stable grid connection and consumption of new energy.

The application provides a LMS-SOGI three-phase phase-locked loop design method and system suitable for a non-ideal power grid, and the method comprises the following steps: sampling three-phase grid-connected voltages of a grid-connected inverter to obtain voltage components through Clark transformation; the voltage components are respectively sent into two SOGI structures to extract positive sequence components of the grid-connected voltages; a least mean square LMS filter link mathematical model is constructed to design a least mean square LMS filter link step parameter; then, the positive sequence components of the grid-connected voltages are subjected to LMS filtering to obtain d-axis and q-axis positive sequence components of a fundamental frequency grid-connected voltage, the q-axis component of the fundamental frequency grid-connected voltage is subtracted by 0 to obtain a q-axis voltage phase-locked error signal, an output signal angular frequency adjustment amount ω is obtained through a PI controller, and a phase θ is obtained through integration. Finally, a three-phase grid voltage LMS-SOGI phase-locked model is built in MATLAB / Simulink simulation software, and different grid voltages are selected for comparative analysis of the filtering effect. The application solves the technical problem that the phase-locked technology of the grid-connected inverter is difficult to accurately lock the voltage frequency and phase in a specific scene.

The application relates to a complex system engineering architecture method and application, and relates to the technical field of complex system engineering architecture. Through selection of embedded, parallel, total and partial, superposition or dynamic adaptation basic architecture modes, professional application logic is accurately combined with corresponding support technology groups to construct a double-domain interactive innovation environment. On a method level, applicable schemes are selected from the architecture modes, functions are divided by division design, application logic is used to guide technology group configuration, digital twin models are used to drive micro-service module optimization, and a closed-loop design ecology is formed. On an action level, the method breaks through the traditional application-technology fragmentation bottleneck. On one hand, fuzzy requirements are upgraded to field logic design, ensuring that technology groups accurately match scene requirements. On the other hand, a double-domain real-time interaction environment is constructed, so that technology elements dynamically respond to logic feedback, significantly improving system efficiency and innovation vitality, and finally providing an expandable original innovation framework for complex engineering such as assistive robots and disaster prevention laboratories.

The invention discloses a current type SVG control method based on improved DC bus voltage synchronization, and the method comprises the steps: enabling a phase-locked loop-based synchronous loop of a current control type SVG to be equivalent to a power synchronous loop based on synchronous outer loop equivalent analysis; according to the relation between the SVG direct current bus voltage and the output active power, a power synchronization loop is equivalent to a direct current bus voltage synchronization loop; on the basis of a direct-current bus voltage synchronous loop, an improved direct-current bus voltage synchronous outer loop fused with a phase-locked loop is designed; a detection method based on an instantaneous reactive power theory is adopted, reactive current detection is achieved, and reactive compensation loop design is completed; a quasi-proportional resonance controller QPR is connected in parallel with a proportional-integral controller PI to design a current control inner loop; in combination with the loop design, a control system of the current type SVG is jointly constructed, and stable control over the current type SVG is achieved. According to the method, the stability under the weak power grid can be improved, and stable grid-connected absorption of new energy is facilitated.

The invention relates to the technical field of power systems, and discloses a network construction converter voltage supporting method and device, and the method comprises the steps: measuring the side voltage and current of a converter and the output end voltage and current of the converter when no fault occurs; measuring a zero-sequence current component effective value and a negative-sequence current component effective value, and calculating interphase measurement impedance and grounding measurement impedance; based on the zero-sequence current component effective value, the negative-sequence current component effective value, the inter-phase measurement impedance and the grounding measurement impedance, the fault type is judged, the fault phase is positioned, and the fault position transition resistance is calculated; and adjusting fault phase and non-fault input electrical quantity according to the converter side voltage and current when no fault occurs, the converter output end voltage and current and fault position transition resistance. According to the method, the fault deviation is quantified by taking the electrical parameters without the fault as the reference, the supporting method is quickly put into use when the fault occurs, and meanwhile, the fault phase and the non-fault phase are adjusted in a targeted manner; the real-time closed-loop design is fast in response, adapts to various fault scenes, and reduces the impact of the fault on the stability of the power grid.

The invention relates to the technical field of man-machine interaction, and discloses an AI man-machine cooperation loop design method, which comprises the following steps: analyzing a task target and decomposing a process structure, identifying a key decision node and a manual intervention node based on an analysis result, and generating a task framework; monitoring an AI execution state flow, extracting state features from the state flow to construct state representation, and generating a manual intervention trigger signal in combination with nodes of the task framework; packaging the context of the intervention request, pushing the packaged request to an artificial terminal, and receiving and integrating structured feedback from the terminal to generate an artificial decision instruction; fusing the AI reasoning result and the artificial decision instruction, recording an interaction sequence of the fusion process, and generating a collaboration session log; according to the collaboration session log and the task framework, dynamically adjusting collaboration rules among the nodes; the cooperative logic of AI execution and manual intervention can be accurately matched, the decision reliability and the overall efficiency of cooperation are effectively improved, and it is guaranteed that a task target is efficiently achieved.

The application belongs to the technical field of dehumidifiers, and discloses a variable-frequency dehumidifier temperature regulation system with step protection and EEV cooperative control, which realizes gradual protection through a three-stage step protection mechanism and dynamic threshold correction design; when first-stage early warning, fine-tuning parameters maintain low-load operation, when second-stage regulation, linkage heat dissipation auxiliary function is forced to cool down, and when third-stage emergency protection, the circuit is cut off to stop, thereby avoiding the impact of direct stop on the compressor, EEV and other core components, and prolonging the service life of the equipment; the protection threshold is corrected in real time by a decision fault-tolerant module according to the environmental temperature and humidity and equipment load, thereby reducing protection false triggering; through EEV double-PID cooperative control and compression linkage closed-loop design, the temperature control precision and heat exchange efficiency are improved; the EEV regulation module adopts temperature deviation PID and overheating degree PID dynamic weighted adjustment, combined with temperature fluctuation prediction mode, thereby avoiding the situation of evaporator frosting and condenser heat exchange efficiency reduction.

The invention discloses a flexible DC converter dual fault identification method comprising the following steps: taking a flexible DC converter as a research object, carrying out period division on collected voltage data, calculating to obtain a deformation value in each period, determining the characteristic ratio of different fault types according to the deformation value, and calculating the fault type according to the characteristic ratio; and amplifying the characteristic ratio to obtain a characteristic strip of the fault type, simulating open-circuit faults of IGBT tubes of different modules, forming a fault characteristic strip library, and realizing identification of double faults of the flexible DC converter. The method gets rid of dependence on an unstable data source; the fault recognition efficiency is improved by constructing a fault feature strip library; a targeted fault handling method is provided, and a closed-loop design from identification to processing is realized.

The invention provides a current transformer verification system and method suitable for a novel power system, and relates to the technical field of current sampling equipment, a double-loop design is adopted, the system comprises a first primary loop and a second primary loop, and specifically, the first primary loop is used as a main test loop; the second primary loop is used for providing harmonic current; when a wide-range error test under power frequency, an error test under power frequency, an error test under half wave, a magnetic saturation margin test and a residual magnetism error test are carried out, a first primary loop is selected to carry out a current rising test; when an error test under harmonic waves is carried out, the first primary loop and the second primary loop are selected to carry out a parallel test, and a current rising test is carried out, so that the tested current transformer is in a running current of power frequency superposed harmonic waves during a test. Error tests and magnetic saturation margin and residual magnetism error tests under various waveforms such as power frequency, wide-range power frequency, direct-current component and half wave are carried out, and the measurement precision and stability of the current transformer are further improved.

This invention discloses a novel design paradigm for phase-locked loops (PLLs) based on chaos theory, relating to the field of millimeter-wave radar integrated circuit technology. This design breaks away from the traditional approach of suppressing chaos in PLLs by actively introducing a controllable chaotic operating point. Through dynamic adjustment of loop bandwidth and modulation depth, it utilizes the characteristics of singular attractors to accelerate phase acquisition and stabilization. During the startup phase, the system enhances nonlinearity to enter a chaotic state for rapid locking, while suppressing nonlinearity in the steady-state phase to improve linearity and noise performance. This invention also integrates lock detection and feedback control mechanisms to optimize loop parameters in real time, significantly improving the tracking capability and robustness of the PLL in scenarios such as frequency-modulated continuous wave (FMCW), exhibiting both universality and scalability.