Synchronous phasor measuring device of ship electrical power system

Abstract

The invention discloses a synchronous phasor measuring device of a ship electrical power system; the synchronous phasor measuring device comprises a processor, an analog-to-digital conversion module, a IIC extension switching value input module, a IIC extension switching value output module, a local area network controller module, a pulse width modulation module, a first asynchronous serial interface UART (Universal Asynchronous Receiver / Transmitter) module and a second asynchronous serial interface UART module and an Ethernet control module; the voltage and the magnitude-of-current of a measuring point of the ship electrical power system or the switching value of a relay or breaker of the electric power system are calculated and logically judged through the processor, then are respectively output through the IIC extension switching value output module and the pulse width modulation (PWM) module and finally are transmitted through the first asynchronous serial interface UART module, the second asynchronous serial interface UART module, the local area network controller module and / or the Ethernet control module. The synchronous phasor measuring device has the functions of dynamic measurement and transient measurement on the electric power system, can be used for carrying out transient analysis and dynamic monitoring on the ship electrical power system and simultaneously has the functions of onsite UART debugging and firmware upgrading of remote equipment by using an Ethernet RJ450 interface.

Description

technical field [0001] The invention belongs to the field of power measurement of a ship power system, and in particular relates to a synchronized phasor measurement device (SPMU, Synchronized Phasor Measurement Unit) for power power of a ship power system, which is suitable for synchronous collection and acquisition of data for dynamic monitoring of a ship power system. Background technique [0002] The ship power system has spatial properties, which determines that the underlying sensors and actuators must be scattered at various measurement and feedback execution points in different geographic locations. In addition, the ship power system also has a time attribute, that is, the state of the ship power system equipment and network changes with time. Therefore, the time uniformity requirement of dynamic monitoring must take certain measures to synchronize the clocks of each measurement node to achieve the accuracy required for real-time dynamic monitoring, so as to establis...

AI Technical Summary

Problems solved by technology

At the same time, the Ethernet remote online configuration method is used to complete the firmware upgrade of the equipment program, serial port baud rate, IP address configuration and other operations, to solve the problem that the measurement point of the ship power system is restricted by the space position, and some synchrophasor measurement devices cannot be on site. Problems caused by firmware upgrades, program downloads, etc., which greatly facilitate users

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