6 results about "Grid application" patented technology

The invention discloses a distributed micro-grid adaptive adjustment system based on model prediction, which belongs to the field of grid power adjustment and comprises a central controller, a grid-connected inverter, a photovoltaic boosting device and a fan rectifying device. The central controller comprises an EtherCAT master station, a signal collector, a model prediction module and a data preprocessing and monitoring module which are connected with one another; the central controller comprises a fitting regression prediction model, acquires voltage and frequency fluctuation signals of the distributed micro-grid, and generates each PWM pulse modulation signal by applying the fitting regression prediction model according to the voltage and frequency fluctuation signals of the distributed micro-grid; the control module is used for receiving the control signals and transmitting the control signals to the grid-connected inverters; and adaptive adjustment is carried out on the micro-grid.

In various embodiments, a grid-based design application automatically generates a design for a structural system of a building. In operation, the grid-based design application generates a structural grid based on a region within a computer-aided design of the building. Subsequently, the grid-based design application applies the structural grid to the region to generate a gridded region. The grid-based design application computes a set of spanning directions based on the gridded region. The grid-based design application then generates at least a portion of the design for the structural system based on the set of spanning directions and the gridded region.

The application relates to an automatic recursive partitioning method and device for a non-structure grid field special language, and the method proposes an automatic recursive partitioning and data conflict resolution software architecture scheme for a shared memory multi-core CPU platform in a non-structure grid field special language and a converter framework, a grid topology and an indirect access mode are uniformly described at a DSL level, a task dependency structure for conflict resolution is automatically constructed, and a global renumbering and data rearrangement mechanism is combined, so that the parallel efficiency, data locality and performance portability of the non-structure grid application on the multi-core CPU platform are improved under the premise of ensuring numerical correctness, and the application development and maintenance cost is reduced.

The invention provides a micro-grid scene-oriented energy storage configuration optimization method and system, and the method comprises the steps: dividing micro-grid application scene types according to load characteristics and operation targets; constructing a comprehensive performance evaluation model of the energy storage system, and taking an energy storage configuration value effectiveness index as an optimization target; based on the energy storage configuration value efficiency index, performing iterative optimization on configuration parameters of the energy storage system until the configuration parameters meet a preset threshold condition; and outputting an energy storage configuration scheme. According to the method, technical factors such as battery characteristics, an energy conversion device, operation maintenance, system life, battery attenuation and replacement are considered in modeling; multiple technical benefits of peak load shifting, renewable energy consumption, power grid capacity expansion delay, power supply reliability improvement, market interaction, carbon emission reduction and the like are covered in the aspect of performance analysis; in the aspect of application scenarios, multiple types of micro-grids are included, systematic configuration optimization of micro-grid energy storage in different scenarios is achieved, and the reliability and adaptability of energy storage technology application are improved.

The application discloses a CAD model through-hole feature recognition and processing method based on a graph neural network, comprising the following steps: constructing a surface adjacency graph according to the B-Rep representation of a CAD model; extracting differential geometric information and attribute information of each surface to construct a node initial feature vector; classifying each surface by using a graph neural network to determine a through-hole surface recognition result; performing triangular subdivision on the CAD model, deleting all grids located on the through-hole surface, applying a hole filling algorithm to repair the grid gap, determining a final grid model with the through-hole feature removed, or associating the surface label with a grid generation algorithm to guide grid generation and determine the finally generated anisotropic grid. The application comprehensively improves the recognition accuracy, processing efficiency and output quality while maintaining the lightweight of the model, and provides reliable technical support for the CAD / CAE integrated process.

The application relates to a power grid application layer instruction level detection method fusing control service logic. For power grid application layer instruction level detection, a rule matching-based method is used to detect abnormal messages and attack messages; abnormal message rules are designed according to protocol specifications, and a mature snort network attack rule library is used as an attack message feature library; for the discrete characteristics of service feature values, an abnormal detection technology based on clustering learning is proposed to realize abnormal identification of service instruction frequencies and service feature codes.