The invention relates to an electrification identification method of a high-voltage power transmission line. The method comprises: whether a power transmission line is electrified is determined; if so, an electrified state of the power transmission line is analyzed further; a feature value of a practical measuring point is calculated; simulated measuring points with positions corresponding to that of the practical measuring point are selected at all simulated measuring paths; with the same method, feature values of all simulated measuring points at each simulated measuring path are calculated; the feature value of the practical measuring point is compared with the feature values of the simulated measuring points successively; if the feature value of the practical measuring point matches the feature values of the simulated measuring points at a certain standard curve, the standard curve is classified into a matching curve set; after traversing of all standard curves, distances between all standard curves in the practical measuring point set and the matching curve set are calculated respectively; and a simulation condition corresponding to the standard curve with the minimum distance is used as an electrification state of the power transmission line. Therefore, whether the line is electrified is identified and the specific electrification situation of the line can be identified.

Electrification identification method of high-voltage power transmission line

The invention discloses a high-voltage pulse generation circuit, which comprises a direct-current voltage stabilizing power supply, a current-limiting resistor, a high-voltage capacitance ratio pulsemodulation circuit, a driving module, a control module and a load, wherein the direct-current voltage stabilizing power supply is connected with the current-limiting resistor to supply power to the high-voltage capacitance ratio pulse modulation circuit, the high-voltage capacitance ratio pulse modulation circuit generates pulses and applies the pulses to the load, and the control module generatescontrol signals which are amplified by the driving module and are respectively connected to corresponding solid-state switches in the high-voltage capacitance ratio pulse modulation circuit. According to the invention, through mutual cooperation between topology and a solid-state switch time sequence, cyclic stepped voltage-multiplying charging and discharging are realized, the number of devicesis greatly reduced while high boosting capability is ensured, the size is small, the weight is light, parameters are adjustable, and certain anti-interference capability is realized.

High-voltage pulse generation circuit

The invention discloses a power frequency high-voltage electrification detection device, which comprises a coupling capacitance module, a current acquisition sensor module, a pre-processing module, an A/D acquisition module, a GPRS communication module, a central processor module, a probe position information module and a power supply module, wherein output ends of the coupling capacitance module and current acquisition sensor module are connected with first and second input ends of the pre-processing module separately; an output end of the pre-processing module is connected with an input end of the A/D acquisition module; output ends of the A/D acquisition module and the probe position information module are connected with first and second input ends of the central processor module separately; an output end of the central processor module is connected with an input end of the GPRS communication module; and power supply ends of the pre-processing module, the A/D acquisition module, the central processor module, the probe position information module and the GPRS communication module are connected with the power supply module. The power frequency high-voltage electrification detection device provided by the invention can be used for detecting the high-voltage and current-carrying situations of a detected object, is safe and simple in operation, and is efficient and accurate.

Power frequency high-voltage electrification detection device

The invention discloses a compact high-voltage controllable Marx generator which comprises a charge power supply, a charge resistor, a sphere-gap trigger switch, a withstand voltage capacitor set, (N-1) capacitors, (N-1) spark switches, 2N resistors and steep gaps, wherein the charge resistor, the sphere-gap trigger switch, the withstand voltage capacitor set, the capacitors, the spark switches and the resistors are all arranged in a sealed metal barrel; the sealed metal barrel is filled with mixed gas of liquid nitrogen and sulfur hexafluoride; the steep gaps are used for outputting steep leading edge high voltage pulses. The compact high-voltage controllable Marx generator is high in reliability, small in size, steep in pulse high voltage leading edge and low in construction cost.

Zhu Ge

Papers

Power frequency high-voltage electrification detection device

Compact high-voltage controllable Marx generator