External monitoring device for STATCOM (static synchronous compensation) high-voltage capacitor discharge container

Abstract

The invention discloses an external monitoring device for an STATCOM (static synchronous compensation) high-voltage capacitor discharge container. The external monitoring device comprises an embedded microcomputer, a first Bluetooth transceiver, a second Bluetooth transceiver and a driver. The embedded microcomputer has an interlocking function and can receive working state signals of a capacitor in real time, the first Bluetooth transceiver is arranged on an internal control system of the STATCOM container, the second Bluetooth transceiver capable of being communicated with the first Bluetooth transceiver of the internal control system of the container is arranged on the embedded microcomputer, and the driver for controlling opening of a container door is connected onto the embedded microcomputer. The monitoring device can be mounted on the optional container door, and can quickly and accurately judge the discharge state of the high-voltage capacitor, and the driver is in linkage with a door lock of the container door, so that safety of operators can be guaranteed. Besides, faults of an STATCOM system can be timely handled, so that normal running of a power system can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of monitoring, in particular to an external monitoring device for a STATCOM high-voltage capacitor discharge container. Background technique [0002] In the prior art, the STATCOM device is mostly installed in the factory building, but the investment cost is high, so it is installed in the container and the container is installed outside the substation, which can reduce the cost. When the container of the STATCOM device is in normal operation, since the container is in a high-voltage area, the container door must be locked. When the STATCOM system stops running, disconnect the high-voltage circuit breaker and cut off the high-voltage power supply. The high voltage capacitors in the STATCOM unit must be discharged before the container door can be opened. Since the display of the monitoring device of the STATCOM system is set in the container, the voltage display value on the capacitor cannot be seen outside...

AI Technical Summary

Problems solved by technology

Since the display of the monitoring device of the STATCOM system is set in the container, the voltage display value on the capacitor cannot be seen outside the container, and if the door is opened to enter, it will cause a safety accident

For this reason, it is necessary to install a monitoring device for the discharge state of the high-voltage capacitor inside the container on the door of the power container. However, the current monitoring device is generally connected to the container door in the high-voltage area, and the safety performance is poor, and the connection is complicated.

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