5results about How to "Precision Governance" patented technology

The utility model provides a voltage sag management energy storage system, which is provided with an energy storage device, a bidirectional converter used for realizing conversion between direct current and alternating current, and a control machine, the bidirectional converter is connected in series with the energy storage device, and the control machine is respectively in communication connection with the energy storage device and the bidirectional converter. The control machine comprises a DI DO module used for controlling on and off of each switch in the sag treatment energy storage system, a communication module used for carrying out data transmission with each component in the voltage sag treatment energy storage system, and a control module used for controlling each component in the voltage sag treatment energy storage system. The control module is in communication connection with the DI DO module and the communication module, so that when voltage sag or power failure of a power grid occurs, the energy storage device can be used for providing a stable power supply for a load, normal operation of the load is ensured, rapid, accurate and flexible treatment of the voltage sag of the power grid is realized, and the voltage quality and stability of the power grid are improved.

The invention relates to a hierarchical control method and device for managing voltage out-of-limit of users in a photovoltaic transformer area, and the method comprises the steps: detecting the voltage of a grid-connected point of a photovoltaic inverter, and judging whether the voltage of the grid-connected point is in a voltage out-of-limit state or not; if the grid-connected point is in the voltage out-of-limit state, calculating a reactive control quantity by adopting a reactive control strategy in combination with the reactive voltage sensitivity of the grid-connected point; controlling the photovoltaic inverter to adjust reactive power output based on the reactive power control quantity; whether the reactive power output of the photovoltaic inverter reaches the maximum value or not is judged, and the grid-connected point voltage is still in a voltage out-of-limit state; if the reactive power output of the photovoltaic inverter reaches the maximum value and the voltage of the grid-connected point is still in a voltage out-of-limit state, calculating an active control quantity by adopting an active control strategy in combination with the active voltage sensitivity of the grid-connected point; and controlling the photovoltaic inverter to limit the active output based on the active control quantity until the voltage of the grid-connected point is recovered to a normal range. According to the invention, the voltage out-of-limit problem of the transformer area users can be accurately solved in real time.

The invention relates to a loess hilly-gully region water and soil conservation monitoring analysis method and platform, soil erosion basic data obtained by the method comprises modulus impact factor data and administrative division data, the modulus impact factor data comprises water erosion factor data and wind erosion factor data, and the administrative division data comprises administrative division vector boundaries; constructing a soil erosion modulus important influence factor identification model, wherein the soil erosion modulus important influence factor identification model comprises a water erosion calculation sub-model and a wind erosion calculation sub-model; and performing water erosion modulus calculation on the specified administrative division through the water erosion calculation sub-model, performing wind erosion modulus calculation on the specified administrative division through the wind erosion calculation sub-model, and calculating the soil erosion strength grade of the specified administrative division according to the water erosion modulus and the wind erosion modulus to obtain a soil erosion result of the specified administrative division. According to the method, precise strategy application and precise treatment are realized, the treatment benefit is improved, and the treatment cost is reduced.

This invention belongs to the field of cloud computing and network traffic control technology, and relates to an intelligent network traffic control method and system for containerized clusters. Based on pre-configured rules, it distinguishes between public network and internal network traffic in real time along the data forwarding path. It periodically monitors the total public network traffic of the cluster and dynamically calculates bandwidth limit parameters using a closed-loop feedback control algorithm. Then, it applies dynamic parameters to public network traffic for real-time shaping, while applying a completely independent static protection strategy to internal network traffic. Finally, it independently monitors the status of the control layer at the data execution layer, automatically releasing public network traffic control in case of disconnection, and ensuring business continuity by adhering to the Fail-Open principle. This invention aims to solve problems in traditional solutions such as indiscriminate control that may damage the internal network, the inability of static configuration to adapt, single points of failure in centralized architectures, and the lack of intelligent closed-loop control. It effectively improves bandwidth utilization and business performance, protects critical internal network traffic, significantly reduces operational complexity, and enhances system robustness.

This invention discloses an airflow-guided device for the coordinated trapping of drifting catkins and flying insects, belonging to the fields of urban environmental management and forestry pest control. The device includes a support frame, a central insect-attracting area, and flow-guiding trapping units distributed around it. The central insect-attracting area includes an adhesive net cage (5) and a target flying insect attractant box (6). The flow-guiding trapping units include concave curved flow guide plates (3) and trapping combs (4). The flow guide plates (3) form a flow channel that gradually narrows from the outer periphery to the center around the central trapping components. The trapping combs (4) are located at the outlet of the flow channel and are positioned between the flow guide plates (3) and the adhesive net cage (5). Natural wind carries the drifting catkins through the guide channel to the collecting comb (4) to form a catkin collection area. After being attracted, the target flying insects pass through the catkin collection area and the sticky net cage (5) in sequence, realizing the retention of drifting catkins, the trapping of flying insects and the secondary interception of missed objects, forming an all-weather two-way collaborative management of poplar and willow catkins and ash narrow-necked beetles, which is suitable for lightweight management scenarios such as communities and parks.