9 results about "Trigger transformer" patented technology

The invention discloses a trigger and pre-combustion integrated laser power supply circuit, and relates to the field of laser power supplies, in particular to a trigger and pre-combustion integrated laser power supply circuit, which comprises an electric energy conversion module and a load driving module, the former comprises a multi-winding transformer and a dynamic voltage control unit, and the latter comprises a trigger branch and a pre-combustion branch. During starting, the dynamic voltage control unit enables the secondary auxiliary winding of the transformer to generate instantaneous overshoot voltage, the instantaneous overshoot voltage charges the energy storage element after rectification, when the instantaneous overshoot voltage reaches the threshold value of the breakdown switch, the breakdown switch is switched on, the high-voltage trigger transformer is triggered to generate pulse high voltage, the trigger voltage and the pre-combustion voltage are superposed to enable the starting voltage of the load to reach the standard, and triggering is achieved. And when the overshoot voltage falls back, the breakdown switch is turned off, the trigger branch is stopped, and the pre-combustion branch maintains the load to work. The trigger module and the pre-combustion module are integrated, the circuit design complexity is simplified, the cost is reduced, the size of the power supply is reduced, and the system integration degree and practicability are improved.

The utility model discloses a traction transformer differential protection device, which relates to the technical field of electrified railway transformer protection and comprises a first trigger circuit for triggering a first magnetizing inrush current blocking signal, a second trigger circuit for triggering a second magnetizing inrush current blocking signal and a third trigger circuit for triggering an empty charging state signal of a transformer. The fourth trigger circuit triggers a differential current waveform asymmetrical signal, the AND logic device I performs AND logic processing on a second magnetizing inrush current blocking signal, a transformer empty charging state signal and the differential current waveform asymmetrical signal, and the OR logic device I performs OR logic processing on an output result of the AND logic device I and a first magnetizing inrush current blocking signal. And triggering an excitation inrush current blocking signal according to an output result of the OR logic device 1. By adding a criterion of magnetizing inrush current locking, protection maloperation caused by magnetizing inrush current in the air-drop process of the traction transformer can be effectively avoided.

Discharge switching device (108), which includes: a comparator section (210) configured to compare an input voltage value with a reference voltage value; and a trigger section (212) configured to discharge stored energy when the input voltage value exceeds the reference voltage value, characterized by the fact that the discharge switching device (108) further comprises a temperature compensation diode (220) which is configured to reduce a change in the reference voltage value; the trigger section (212) comprises a trigger device and a discharge device; wherein the trigger device includes a trigger metal oxide semiconductor field effect transistor (MOSFET) (222) and a trigger transformer (216).

A method and system for dynamic power regulation of distributed energy storage is proposed. This method determines three types of correction values ​​for the energy storage power at different time periods: a first type, a second type, and a third type. Under an energy storage operation scenario determined by power regulation margin, the sum of these correction values ​​that satisfy the constraints is used as the corrected power. If the base power and the corrected power do not conflict, and the transformer is not overloaded but energy storage overcharge protection is triggered, the first type of correction value is used as the power regulation value. If the transformer is not overloaded but energy storage overdischarge protection is triggered, the third type of correction value is used as the power regulation value. During normal charging and discharging of the energy storage, if transformer overload protection is triggered, the second type of correction value is used as the power regulation value, regardless of whether there is a conflict between the base power and the corrected power. If neither energy storage overcharge nor overdischarge protection nor transformer overload protection is triggered, the power regulation value is determined based on the conflict between the base power and the corrected power. This addresses the problems of single regulation dimension, delayed response, insufficient equipment protection, and low renewable energy consumption efficiency in existing technologies.

The invention relates to the field of power equipment fault prediction and health management, in particular to a transformer fault diagnosis method and device, equipment and a medium, and the method comprises the steps: verifying the effectiveness of each gas sensor corresponding to online monitoring gas when the transformer fault diagnosis is triggered; for any gas sensor, if the verification of the gas sensor is not passed, triggering an online calibration process to obtain a calibrated gas sensor; according to the calibrated gas sensor, gas concentration data corresponding to the online monitoring gas and measurement uncertainty corresponding to the gas concentration data are obtained; performing fault diagnosis on the transformer based on each gas concentration data and the measurement uncertainty corresponding to each gas concentration data to obtain a diagnosis result and a confidence level of the diagnosis result; and a diagnosis report is output according to the diagnosis result and the confidence level of the diagnosis result, and the credibility of transformer fault diagnosis is effectively improved by establishing quantitative correlation between data quality and a diagnosis conclusion.

This invention discloses a parallel triggering circuit for pulsed thyristors and a pulsed discharge system, belonging to the field of thyristor triggering technology. It includes: N trigger power supplies, N trigger modules, and corresponding N sets of series-connected thyristor groups, where N > 1. Each trigger module includes a capacitor, a current-limiting resistor, a trigger switch, and a trigger transformer. The capacitor and trigger switch are connected in series and then in parallel to the primary side of the trigger transformer. Each set of series-connected thyristors is connected to the secondary side of the corresponding trigger transformer. The current-limiting resistor is connected between the positive terminal of the corresponding trigger power supply and one end of the capacitor. Each trigger power supply is used to charge the capacitor in the corresponding trigger module. Each trigger module is connected in parallel to the primary side of the trigger transformer through the two ends of the trigger switch. The trigger circuit of this invention has a simple structure, can simultaneously trigger each set of thyristors, has high reliability and safety, and is applicable to all scenarios requiring synchronous triggering.

The application discloses a balloon catheter structure and device. The balloon catheter structure comprises a tube assembly, a balloon, a first electrode assembly, a second electrode assembly and a trigger electrode assembly. The balloon is sleeved on the tube assembly. The first electrode assembly, the second electrode assembly and the trigger electrode assembly are arranged on the outer surface of the first tube of the tube assembly. The trigger electrode assembly comprises at least one first conductor and a first wire. The first conductor is connected with the first wire. The first conductor is arranged in the interior of the balloon. The device comprises the balloon catheter structure, a high-voltage generator and a trigger transformer. The high-voltage end of the high-voltage generator is connected with the first electrode assembly. The low-voltage end of the high-voltage generator is connected with the second electrode assembly. The trigger transformer is connected with the trigger electrode assembly. Compared with the prior art, the precision requirement of the balloon catheter is reduced, the processing difficulty and the assembly difficulty are reduced, and the service life is improved.

This invention relates to the field of power electronics testing and control technology, specifically a functional testing system based on zero-crossing detection, comprising: a signal acquisition module for filtering the input AC signal to generate an initial zero-crossing signal and acquiring the state parameters of the power switch transistor; a real-time evaluation module for extracting the time base drift over consecutive periods, calculating the phase jitter variance, and quantifying the current volt-second product asymmetry of the trigger transformer in conjunction with the state parameters; a defense decision module for comparing it with a preset danger threshold and generating a pulse control strategy; and a pulse output module for generating a target trigger pulse sequence and outputting it to the drive circuit to control the power switch transistor to conduct and adjust the flux state of the trigger transformer. This invention achieves closed-loop integration of functional testing and trigger link safety maintenance.

The application discloses an online monitoring system and method for dissolved gas in oil based on a spectrum principle, relates to the field of transformer online monitoring technology, and comprises a monitoring controller which is in communication connection with a transformer oil chromatography online monitoring module, is suitable for identifying the state of the transformer, and triggers the transformer oil chromatography online monitoring module to operate when an abnormality of the transformer is identified; the transformer oil chromatography online monitoring module is connected with the transformer and is suitable for acquiring data of dissolved gas in transformer oil; the application utilizes the characteristic that the transformer has a sound feature when a fault occurs, constructs the sound feature to pre-monitor the transformer, triggers the transformer oil chromatography online monitoring system to determine the abnormality when an abnormality of the transformer is identified, and realizes the effect of reducing carrier gas consumption.