7results about How to "Avoid cascading failures" patented technology

The application discloses a kind of based on double-layer non-periodic random topology metallized film and its preparation method, the metallized film based on double-layer non-periodic random topology, including the fuse bridge being arranged on the surface of film dielectric, the fuse bridge includes multiple macroscopic fuse bridges, multiple the macroscopic fuse bridge is connected to form macroscopic tessellation polygon net, multiple microcosmic fuse bridges are arranged in each grid of the macroscopic tessellation polygon net, and multiple microcosmic fuse bridges in each grid are connected to form microcosmic tessellation polygon net.This metallized film breaks the periodicity limit from the geometric topology level, and can realize interlayer space avoidance after winding and can be differentiated protection for different regional stress characteristics.

The invention relates to the technical field of computer software demand analysis and automation, and discloses an automatic writing method and system oriented to demand analysis, and the method comprises the steps: constructing a domain knowledge graph containing a component mutual exclusion and dependency relationship, and deducing and generating a component compatibility matrix; converting the unstructured demand text into structured features by using a natural language processing algorithm; generating a virtual configuration list in combination with the atlas, and performing conflict detection based on a compatibility matrix and a supervision protocol; when violation is detected, the topological connectivity is quantified by calculating the sum of in-degree and out-degree of the component in the map, and the component is retrieved and replaced according to the topological connectivity for automatic correction; monitoring a change event, calculating an influence domain by using a weight conduction algorithm, and triggering local re-verification; and finally, generating a descriptive text, and executing consistency check by reversely extracting numerical values. According to the method, the configuration verification efficiency and the correction stability are improved through matrix operation and topology analysis, and the accuracy of the demand analysis document is ensured.

The application discloses an abnormality monitoring method and system of a fuel cell stack. The operation process of the fuel cell stack is divided into an open circuit stage with no load connected, an activation polarization stage with low load started, and a normal operation stage with high load started. The abnormality monitoring method comprises the following steps: in the open circuit stage, the open circuit voltage of the battery is collected in real time, if the open circuit voltage is higher than a first set value for a continuous preset number of times, it is judged that the open circuit stage is abnormal, and a pre-warning prompt is triggered; in the activation polarization stage, the output power slope of the stack is calculated, if the power slope is less than a second set value within a specified time, it is judged that the activation polarization stage is abnormal, and a preset action is performed. The technical scheme of the application can monitor different stages of the fuel cell stack, improve the fault disposal efficiency, and increase the safety and stability of the stack operation.

The application discloses an AC-DC power grid intelligent scheduling and protection control method, system, device and medium, and belongs to the technical field of intelligent power grid operation control, which comprises the following steps: constructing an AC-DC collaborative scheduling model, dynamically predicting new energy output and load demand and generating a coordination instruction; based on the scheduling result, establishing a multi-level linkage protection architecture, defining AC and DC system protection collaborative logic; integrating heterogeneous operation data of AC and DC systems to construct a unified analysis model; adopting a deep reinforcement learning algorithm to rollingly optimize a dynamic power flow distribution strategy; dynamically correcting protection parameters and triggering edge side fault rapid response according to real-time operation state; forming a closed-loop technology link, with previous results driving subsequent actions, so that the adaptive collaboration of scheduling, protection and control is realized. Through the AC-DC collaborative scheduling and multi-level protection architecture, combined with the deep reinforcement learning algorithm and the dynamic protection mechanism, the application constructs a "scheduling-protection-control" three-dimensional decision system, and improves the stability of the power grid.

The application discloses a multilayer distributed current collector with improved binding force and a preparation method thereof, a pole piece and a battery, and comprises a polymer film, a copper foil and an aluminum foil, the two sides of the polymer film are respectively provided with a first adhesive layer and a second adhesive layer, the polymer film is combined with the copper foil on one side through the first adhesive layer and is combined with the aluminum foil on the other side through the first adhesive layer, the side of the copper foil and the side of the aluminum foil facing the polymer film are respectively provided with a hole array, and the combination of the polymer film, the copper foil and the aluminum foil is provided with controllable corrugation. Through the synergistic scheme of nano-hole anchoring and controllable corrugation structure, the interface stability and safety of the pole piece are significantly improved.

The application discloses an intelligent switch cabinet integrated monitoring system and method, and relates to the technical field of big data analysis.The application forms historical normal data records by collecting state data, updating times and time stamps of normal operation of switches, and arranging and adding unique identification.The application generates switch state sequences by counting updating times, and constructs a reference state library.The application extracts sequences to calculate state probabilities of other switches in different states of the switch, and constructs a judgment standard library.After detecting the change of the switch state, the application collects actual data, matches the actual data with the standard library, calculates the matching degree, and performs early warning and manual checking when the matching degree is lower than a threshold value.The system comprises a data collection module, a state sequence module, a probability standard module and a matching early warning module.The application improves the specification and query efficiency of monitoring data, improves the accuracy of fault early warning, avoids chain faults, ensures the safe operation of the switch cabinet, and improves the operation and maintenance efficiency.

The application discloses a Tomcat container application thread pool isolation method and device based on Java Agent and a medium, relates to the Java technical field, and comprises the following steps: loading an agent program through a Java Agent mechanism when a Tomcat container starts, and initializing a global application thread pool manager by the agent program; performing byte code conversion on a network request processing class of the Tomcat container through the agent program, and inserting routing code in a request processing method of the network request processing class; creating a corresponding independent thread pool for each Web application deployed in the Tomcat container through the application thread pool manager; obtaining a Web application identifier to which an HTTP request belongs through the routing code when the HTTP request is received; obtaining the corresponding independent thread pool from the application thread pool manager according to the Web application identifier; and submitting a processing task of the HTTP request to the obtained independent thread pool for execution, and preventing the processing task from being executed in an original shared thread pool of the Tomcat container, so that the Tomcat container can be used to non-invasively realize the application thread pool isolation in the Tomcat container.