36results about How to "Run without interruption" patented technology

The workpiece origin compensation method based on on-machine measurement technology of double-spindle machine tool comprises the following steps: step 1), selecting a geometric element to create a measurement point; step 2), determining the number of workpiece origins to be compensated and determining the reference graphic type; step 3), calculating the offset amount of the geometric element center theoretical position and the workpiece origin theoretical position; step 4), obtaining the measurement point data of the workpiece corresponding to the Z spindle and the W spindle, and calculating the actual position data; step 5), calculating the workpiece origin compensation value; step 6), compensating the actual value of the workpiece origin; and step 7), importing the machine tool control system. The workpiece origin compensation of the double-spindle machine tool is similar to that of the single-spindle machine tool, the overall position alignment or multiple local position alignment of the workpiece of the double-spindle machine tool can be realized, the application difficulty of the workpiece origin compensation of the double-spindle machine tool is reduced, and the machining efficiency is improved.

The invention discloses a high-voltage energy storage frequency conversion system and a power supply switching method thereof, and the method comprises the steps: enabling an energy storage converter to collect a high-voltage signal of a power grid, obtaining a given power instruction of the system, monitoring the actual output power of the energy storage converter in real time, and calculating the impedance of the system; according to the obtained data, whether the device is in an island operation state is judged; and sending a corresponding signal to the high-voltage frequency converter according to the high-voltage signal of the power grid and the island judgment result, so that the high-voltage frequency converter controls the opening and closing of a contactor in a corresponding circuit, and switching from the power grid to the energy storage system to supply power to the load under the condition that the power grid is powered off, or switching from the energy storage system to the power grid to supply power to the load under the condition that the power grid is powered on. According to the scheme, the power failure of the current power supply can be recognized in time, smooth switching of power supply is achieved, no gap time exists between power supply switching, seamless switching is truly achieved, and therefore it can be guaranteed that an important load can operate uninterruptedly in the power supply switching process, and the reliability, stability and safety of operation of the whole system are improved.

The application provides a motor Hall signal high fault-tolerant acquisition device and method, and belongs to the technical field of motor control. The device comprises: a Hall acquisition circuit, used for acquiring original three-phase Hall signals; an auxiliary acquisition circuit, used for monitoring motor operating parameters and generating three-phase auxiliary position signals; a core algorithm circuit, used for, when it is determined that the original Hall signals have failed, reconstructing compensation Hall position signals based on the three-phase auxiliary position signals and a preset motor physical model, and combining the normal Hall signals to generate final three-phase Hall position signals; and a Hall signal output circuit, used for conditioning and outputting the final signals. The application solves the problems of the existing Hall signal fault-tolerant scheme, such as limited fault-tolerant capability, increased system complexity and poor universality. By solidifying fault diagnosis and signal reconstruction in independent hardware, correct position signals can be continuously output even when all Hall sensors fail, thereby greatly improving the reliability of the motor system, simplifying the main control software design, and having good universality.

The application discloses a wind and light energy capturing integrated micro-grid system and method for self-power supply of bridge safety monitoring equipment, and belongs to the cross technical field of new energy comprehensive utilization and infrastructure resilience protection. The system comprises three subsystems: a wind and light energy capturing integrated structure subsystem composed of a vertical axis wind turbine and a building integrated photovoltaic panel; an intelligent energy management subsystem integrated with a multi-port energy router, a lithium capacitor hybrid energy storage unit, a grid-connected / off-grid bidirectional converter and a reinforcement learning energy scheduling controller; and a bridge safety monitoring load subsystem covering a low, slow and small target radar, a distributed optical fiber acoustic sensing module and an optoelectronic identification module. The system is based on wind and light energy capturing, and realizes dynamic cooperation of energy production and monitoring tasks through intelligent scheduling, so as to solve the problems of dependence of the existing bridge monitoring system on municipal power grids, slow energy response and insufficient resilience and the like. The system is flexible in deployment and strong in resilience, and can guarantee safe and stable operation of key infrastructure in extreme environments.