4 results about "Nonlinear saturation" patented technology

The application belongs to the field of power equipment, and discloses a transformer inter-turn short-circuit fault modeling method, system, device and medium, which comprises the following steps: a two-dimensional geometric model of a transformer core and winding is established, the two-dimensional geometric model is discretized and divided into a plurality of magnetic network units to obtain a discrete magnetic network model; a three-dimensional electrostatic field entity model of the winding is constructed, and a distribution capacitance matrix between turns of the winding and to the ground is calculated; a short-circuit grid point is set in the discrete magnetic network model, the short-circuit grid point is connected in parallel to a metallic short-circuit branch model to obtain a short-circuit closed branch; a transformer circuit is obtained, a coupling relationship between the transformer circuit and the discrete magnetic network model is constructed based on the distribution capacitance matrix, and a transformer inter-turn short-circuit fault model is constructed. The application can accurately describe the internal space electromagnetic distribution characteristics and the local nonlinear saturation characteristics of the core of the transformer.

This invention relates to the fields of digital marketing technology and artificial intelligence optimization technology, and particularly to a method and system for joint budget allocation and ROI optimization of cross-platform advertising expenditures. It addresses the channel contribution assessment bias caused by traditional "last click" attribution through the Shapley value attribution model; it achieves quantitative prediction of inter-channel synergy and crowding-out effects by constructing a joint prediction model using nonlinear saturated response functions and cross-influence coefficients; it overcomes budget inefficiencies caused by independent optimization on a single platform through global optimization solutions using nonlinear programming and sequential quadratic programming algorithms; and it ensures the safe implementation of automated decision-making through safety executors and anomaly circuit breakers. This method elevates advertising budget allocation from a "local, static, and biased" level to a "global, dynamic, and scientific" level, significantly improving the overall advertising ROI by an estimated 15%-30%.

The application discloses a kind of constant temperature controllable load regulation and control method and system based on multi-agent control, comprising: the performance parameter and refrigeration performance index of each constant temperature controllable load in large-scale constant temperature controllable load cluster are collected, and the thermodynamic model corresponding to the room where each constant temperature controllable load is located is constructed, the large-scale constant temperature controllable load cluster is defined as multi-agent system, and control framework and communication model for controlling multi-agent system through aggregator are established, nonlinear consistency controller is constructed according to preset constant temperature controllable load state variable calculation method, nonlinear saturation consistency algorithm, relay node state update model and fallback mechanism, the initial state of the large-scale constant temperature controllable load cluster is obtained, according to the initial state and the thermodynamic model, the nonlinear consistency controller is regulated and controlled, for realizing the unified regulation of large-scale constant temperature controllable load.

The embodiment of the application provides an estimation method and system of a wind turbine variable pitch nonlinear saturation system, which introduces a saturation compensation network after a standard EKF prediction step, perceives the saturation depth of an instruction and the initial prediction deviation of a physical model, and further corrects the model prediction error caused by the saturation effect. In this way, the prior state prediction can be actively and accurately compensated before the update step of the EKF, so as to effectively inhibit the impact of large new information caused by saturation on the filtering process, avoid the estimation divergence problem that may occur in the traditional method, and provide reliable state information support for accurate control and safe operation of the wind turbine under complex working conditions.