Ethernet-based remote monitoring system and method for active power filters
A remote monitoring system and power filter technology, which is applied in active power filtering, information technology support systems, and AC networks to reduce harmonics/ripples, etc. , Accurate, real-time communication needs and other issues, to achieve the effect of large data transmission, high accuracy, and good real-time performance
Active Publication Date: 2016-04-13
NANJING APAITEK TECH
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Problems solved by technology
[0003] Since the active power filter has a large amount of operating data, the monitoring system has high requirements for remote data communication. Traditional bus mechanisms such as RS232, RS485, etc. have been unable to meet the high-speed, accurate and real-time communication needs of large data volumes.
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[0013] Such as figure 1 As shown, an Ethernet-based active power filter remote monitoring system includes a display unit, a communication unit, a main control unit and an active filter bank. The active filter bank is composed of n active filters, n ≥1, each active filter interacts with the main control unit through optical fiber; the main control unit interacts with the communication unit through the optical fiber with the operating data of each active filter and the related data of the power grid, and the controller of the communication unit includes FPGA and MCU, FPGA and MCU perform data interaction through dual-port RAM; FPGA receives data sent by the main control unit, MCU connects and controls the Ethernet controller of the remote display unit and the PC monitoring system, and communicates remotely through the internet.
[0014] The FPGA of the communication unit detects the RAM state space with a period of 200ms, and reads and writes data according to the corresponding ...
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The invention discloses an ethernet-based remote monitoring system and method for active power filters. The system comprises a display unit, a communication unit, a master control unit and an active filter bank, wherein the active filter bank comprises n active filters; n is greater than or equal to 1; each active filter and the master control unit carry out data interaction through an optical fiber; the master control unit and the communication unit carry out interaction on operating data of each active filter and related data of a power grid through the optical fiber; a controller of the communication unit comprises an FPGA and an MCU; the FPGA and the MCU carry out data interaction through a dual-port RAM; the FPGA receives data transmitted by the master control unit; and the MCU is connected with an ethernet controller of the remote display unit, controls the ethernet controller to be connected with a PC monitoring system, and carries out remote communication through the internet. The system is simple in structure, large in data transmission amount, high in accuracy and good in instantaneity; and an ethernet access technology is combined with data collection of the active power filters, so that the functions of monitoring, controlling, data downloading and the like for the active power filters are well achieved.
Description
technical field [0001] The invention relates to a remote monitoring system, in particular to a remote monitoring system through an Ethernet-based active power filter. Background technique [0002] In modern society, the load harmonic current seriously affects the use of electric energy by users. Active power filters are a powerful means to solve power harmonic problems. The quality of the power grid and the operation of active power filter devices need to be monitored by the terminal monitoring system. Therefore, whether the active power filter monitoring system can monitor the operation of the active power filter and the quality of the power grid in real time, accurately and comprehensively; whether it can accurately control the operating parameters of the active power filter on site is very important. important. [0003] Since the active power filter has a large amount of operating data, the monitoring system has high requirements for remote data communication. Traditiona...
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Login to View More IPC IPC(8): H02J13/00H02J3/01
CPCH02J13/0062H02J3/01H02J13/00001Y04S40/124Y04S40/128Y02E40/20Y02E60/00
Inventor 张勇葛文海仇志凌芮国强陈斐斐
Owner NANJING APAITEK TECH