10results about How to "Flexible control strategy" patented technology

The invention provides a control method for an anti-lock braking system of a vehicle, a controller, the anti-lock braking system, a storage medium and a program product. The method comprises the steps of determining a bumping condition of a road surface where a vehicle is located; when it is determined that the vehicle is on the bumpy road surface, an anti-lock braking system of the vehicle is controlled to enter a preset working mode for the bumpy road surface; when it is determined that the vehicle leaves the bumpy road surface, an anti-lock braking system of the vehicle is controlled to exit the preset working mode; wherein the preset working mode comprises adjustment of at least one of a starting threshold vehicle speed used for the anti-lock braking system, an exit threshold vehicle speed of the anti-lock braking system and a slip rate threshold of starting of the anti-lock braking system.

The invention discloses a power distribution network reactive power optimization control method, and discloses a system with the power distribution network reactive power optimization control method and a storage medium, and the power distribution network reactive power optimization control method comprises the steps: building a power distribution network voltage supporting capability evaluation index, and quantifying the power grid voltage stability level; and a decision basis is provided for reactive power control. Meanwhile, the optimization model realizes new energy access and dynamic adjustment of output of a traditional generator set, the capability of a power grid to adapt to new energy fluctuation is improved, the utilization efficiency of new energy is maximized, and green transformation of a power system is promoted. The invention further provides a flexible control strategy, the reactive power control requirements of the power distribution network under different regions, scales and operation conditions are met, the effectiveness of the method and the feasibility of engineering application are verified through simulation experiments, and the method has important theoretical significance and application value.

The invention discloses a control method and device for an electromagnetic three-speed fan and a medium. The method comprises the steps that the temperature of an engine is collected, a preset temperature threshold value set is determined, and the corresponding fan operation state is determined according to the temperature of the engine and the temperature threshold value set; when the operation state of the fan is the medium-speed operation state or the high-speed operation state, first safety parameters are collected through a preset controller, and the first safety parameters comprise the real-time temperature of an engine, the gear of a gearbox, the rotating speed of the engine and the opening degree of an accelerator pedal of the whole vehicle; and determining a preset first safety threshold group, and determining a jump signal according to the first safety parameter and the first safety threshold group, so that the controller enters a speed reduction mode according to the jump signal, and the fan running state is jumped into a low-speed running state. The engine temperature is collected in real time and compared with the preset temperature threshold value set, the low-speed or medium-speed or high-speed running state of the fan is intelligently selected, the heat dissipation requirements under different working conditions are effectively met, and the energy utilization rate is increased.

This application provides a thermal management method, apparatus, and medium for an energy storage system. The method includes: acquiring state data of the energy storage system, including an array representing the battery's operating mode and temperature control mode. Each operating mode corresponds to a specific control strategy under different temperature control modes. The control strategy is configured with entry and exit conditions for whether to execute the strategy. If the battery's operating data is detected to meet the entry or exit conditions, the corresponding control strategy is responded to based on the met conditions, controlling the temperature and flow request values ​​output by the liquid cooling system. This application uses an array to represent the battery's operating mode and temperature control mode and configures a flexible control strategy, making it easier to expand and maintain as needed. On the one hand, it achieves precise management; on the other hand, the array-based settings greatly reduce the workload of software development and configuration, improving the efficiency of thermal management configuration and monitoring of the energy storage system.

The present invention belongs to the technical field of power electronic converters, and discloses a three-port power router topology and control method for high-reliability power supply. The topology structure includes three connected reactors L, a chain SVG, a three-phase isolation transformer, a three-phase LC filter, a three-phase three-port H-bridge inverter circuit and an energy storage DC port. The present invention forms a three-port converter topology with high-voltage AC, low-voltage AC and energy storage DC through the fusion of multi-form high and low voltage conversion topologies. Its control method can realize the reactive power compensation function of the chain SVG; the three-phase three-port H-bridge inverter circuit can maintain the voltage stability of the 380V low-voltage AC bus and provide active power support for the chain SVG; when a fault such as a grid voltage drop occurs in the 10kV AC feeder, the fault can be isolated through the chain SVG, thereby realizing high-reliability power supply of the 380V low-voltage AC bus.

The oxygen generation system comprises a plurality of oxygen generation modules, an oxygen storage module and a control module. And each oxygen generation module is configured to be capable of preparing oxygen at preset constant power. And the oxygen storage module is communicated with each oxygen generation module through a plurality of mutually independent first oxygen conveying pipelines. The control module is in communication connection with all the oxygen generation modules. The control module comprises a control piece and a first detection piece, and the first detection piece is configured to be capable of determining the oxygen consumption of the output end of the oxygen storage module. The control piece is configured to selectively control the oxygen generation modules to be started independently or synchronously according to the oxygen consumption. By arranging the multiple oxygen generation modules, a flexible control strategy can be achieved, energy consumption is optimized, and the problem that in a traditional oxygen generation system, the efficiency is low when a single air compressor is in a low load state is solved. And the safety and the stability of system operation can be further improved in a decentralized operation mode, so that the actual requirements of oxygen consumption fluctuation change in places such as hospitals and the like can be better met.

The utility model discloses a three-phase drive circuit and drive equipment, and relates to the technical field of motors, the drive equipment comprises a motor, the motor comprises a first three-phase winding and a second three-phase winding, and the three-phase drive circuit comprises a power supply circuit, a first drive circuit and a first rectification circuit. The first driving circuit comprises a first switching circuit and a second switching circuit, the input end of the first switching circuit is electrically connected with the power supply circuit, the output end of the first switching circuit is electrically connected with the input end of the second switching circuit, and the output end of the first switching circuit is further electrically connected with the first end, the second end and the third end of the first three-phase winding; the first end, the second end and the third end of the second three-phase winding are connected with the first rectifying circuit; the utility model aims to improve the energy utilization rate of the motor.

The invention relates to a back flushing compensation control method and system based on a denitration oxynitride signal, and belongs to the field of environmental engineering and automation control, and the method comprises the following steps: (1) a data collection step; (2) calculating a mean value and a deviation; (3) a compensation correction function application step; (4) a signal superposition step; and (5) a delay control step. The system has the advantages that automatic control is achieved, human intervention is reduced, and the intelligent level of the system is improved. The change trend of NOx can be predicted more accurately by collecting data before back flushing of the CEMS instrument; by adjusting an ammonia injection control valve instruction in real time, the system can quickly adapt to working condition changes, and the denitration efficiency is improved.

The application discloses an IGBT module intelligent monitoring system integrated with a temperature sensor and relates to the technical field of power electronic equipment monitoring.The system comprises the following: an information acquisition unit, which comprises a detection loop formed by various sensors, acquires data, processes the data, generates a structured data set, and transmits the structured data set to a hot state evaluation unit; the unit predicts junction temperature trends, quantifies thermal margins, generates an evaluation report, and issues the evaluation report to a collaborative decision unit; the unit calculates optimal instructions and transmits the optimal instructions to a precise regulation and control unit; the latter executes regulation and control, records logs, acquires parameters, triggers protection, and feeds back corrections, thereby forming a closed-loop control; the application builds a multi-unit collaborative closed-loop control architecture, integrates multiple functions, realizes full-dimensional perception and fine management of IGBT modules, optimizes data processing and regulation and control logic, realizes efficient linkage of monitoring and regulation and control, predicts junction temperature changes, combines graded protection and dynamic correction, adapts to different working conditions, prolongs the service life, and improves the stability, reliability and operation efficiency of the system.

The invention relates to the technical field of vehicles, and provides a vehicle-mounted waste heat recovery system and a control method and device thereof. The vehicle-mounted waste heat recovery system comprises a liquid storage device, a working medium pump, a heat regenerator, a preheater, a flue gas evaporator, an expansion machine and a condenser which are sequentially communicated through a working medium pipeline. A cylinder sleeve water pipeline of an engine of the vehicle flows through the preheater and heats the preheater, and an exhaust pipeline of the engine is connected with a flue gas inlet and a flue gas outlet of the flue gas evaporator and heats the flue gas inlet and the flue gas outlet of the flue gas evaporator; the two ends of the expansion machine are connected with a bypass pipeline in parallel, a bypass valve is arranged on the bypass pipeline, an inlet and an outlet of the expansion valve are provided with a first valve and a second valve respectively, and an inlet and an outlet of the working medium pump are provided with a third valve and a fourth valve respectively. According to the vehicle-mounted waste heat recovery system and the control method and the control device thereof, the waste heat recovery system can be adaptively adjusted along with the running state of the vehicle in the actual running process of the vehicle, so that the system is in a designed working condition point during starting, stopping and running.