7 results about "Transient failure" patented technology

An energy storage power generation system and a control method thereof. When a transient fault occurs in the power grid, the plurality of power conversion systems may enter a transient-state operating mode from a steady-state operating mode, and a parallel expansion multiple of the energy storage power generation system is less than a transient overload multiple. In embodiments, a physical characteristic of transient overloading and a short-time overload capability of the power conversion system are fully used, and the power grid is supported when a power grid fault is detected. This solution simplifies an architecture of the system and increases efficiency of the system. It is easy to understand that because a quantity of power conversion systems is reduced and costs of the system are also reduced.

The present application relates to the technical field of power equipment state monitoring and fault diagnosis, in particular to a vacuum circuit breaker fault detection method and system based on deep fusion perception, which responds to a preset operation instruction, synchronously acquires an electrical control loop transient current signal, a main loop transient voltage drop signal and an envelope signal of a high-frequency electromagnetic field of a near-field space of an arc extinguishing chamber, and constructs a multi-dimensional state matrix; based on an electromechanical coupling energy admittance operator containing an energy conversion coefficient and an admittance matrix, phase space reconstruction is carried out, transient energy flow rate is calculated, and a transient energy trajectory in a three-dimensional energy phase space is generated; the transient energy trajectory is compared with a health state energy manifold, an orthogonal projection residual vector is calculated, and a specific fault type is determined, a quantitative diagnosis report is generated or the health state energy manifold is updated, and the present application realizes interpretable identification of vacuum circuit breaker opening and closing transient faults and improves anti-interference capability.

The application provides a controller redundancy bus health degree evaluation method and device, equipment and a storage medium. The method comprises the following steps: obtaining a link error rate and a signal-to-noise ratio from a physical layer chip; capturing a transient signal of a physical layer chip state pin by a field programmable gate array logic in a controller to generate a transient fault event; counting the number of transient fault events in a set sliding time window to determine a transient disturbance deduction value; determining an error code degradation deduction value and a physical signal deduction value according to the error rate and the signal-to-noise ratio; and finally determining a link performance integrity score based on a preset reference score minus the three deduction values. The method overcomes the deficiency of binary logic that cannot prewarn performance gradual change, can identify and grade the prewarning link performance degradation state in advance, and overcomes the long software polling sampling period by using the field programmable gate array logic to capture the microsecond-level transient signal, so that the transient fault can be accurately perceived and quantitatively counted.

The application discloses a transaction processing method and system, comprising: in response to a fund operation request from a business system, creating a flow record and marking the state of the flow record as processing; based on the fund operation request, initiating a fund operation instruction to a database; obtaining execution feedback of the fund operation instruction, if the execution feedback indicates that the operation is not successful, determining that the fund operation execution fails; determining the failure cause according to the execution feedback, and determining that the failure cause is retryable or non-retryable failure; if the failure cause is retryable transient failure, initiating a retry operation to the database; if the retry operation is still failed after N times of execution, the next step is executed; if the failure cause is non-retryable permanent failure, or the retry operation is still failed after N times of execution, a compensation transaction operation corresponding to the execution feedback of the fund operation is executed to realize rollback. Through the method, meaningless waiting and waste of retry resources can be avoided.

This invention relates to the field of power equipment condition monitoring and fault diagnosis technology, specifically to a method and system for detecting faults in vacuum circuit breakers based on deep fusion sensing. This method responds to preset operation commands, simultaneously acquiring transient current signals from the electrical control circuit, transient voltage drop signals from the main circuit, and the near-field high-frequency electromagnetic field envelope signal from the arc-extinguishing chamber, constructing a multi-dimensional state matrix. Based on an electromechanical coupling energy admittance operator containing energy conversion coefficients and admittance matrices, it reconstructs the phase space, calculates the transient energy flow rate, and generates the transient energy trajectory in the three-dimensional energy phase space. This trajectory is compared with the healthy state energy manifold, and the orthogonal projection residual vector is calculated. Based on this, a specific fault type is determined, a quantitative diagnostic report is generated, or the healthy state energy manifold is updated. This invention enables interpretable identification of transient faults during opening and closing of vacuum circuit breakers and improves their anti-interference capability.

The application relates to a distributed real-time fault monitoring method and system, belonging to the technical field of optical communication network fault monitoring, which realizes high-sampling-rate continuous monitoring of optical power waveforms through distributed deployment of monitoring units; adopts an intelligent triggering algorithm based on instantaneous change rate, power drop amplitude and self-adaption with a dynamic threshold to capture millisecond-level transient faults in real time; utilizes a multi-event intelligent decoupling algorithm to identify and strip multiple fault events occurring simultaneously or overlapping; and based on the relative time difference of fault events on different monitoring units and in combination with optical signal propagation delay, accurately calculates the fault occurrence position. The application realizes real-time high-precision detection of millisecond-level transient faults, can perform real-time continuous monitoring without interrupting services, accurately locates faults to specific physical positions (such as 30 km), effectively handles multiple fault scenarios, greatly reduces fault troubleshooting time and significantly improves the reliability and operation efficiency of optical networks.