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ARM (Advanced RISC Machine) embedded microprocessor based reactive power compensation device

A microprocessor and compensation device technology, applied in the direction of reactive power compensation, reactive power adjustment/elimination/compensation, etc., can solve the problems of unable to compensate the reactive power of the grid, and the power factor cannot be approached, so as to avoid repeated switching, The effect of continuous regulation

Inactive Publication Date: 2014-01-22
SHAANXI HI-TECH IND CO LTD
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Problems solved by technology

Since the switching of capacitors is carried out in stages, the compensation current generated is also step-wise, which cannot properly compensate the reactive power of the grid, often making the grid in an over-compensation or under-compensation state, and the power factor cannot be close
Considering the shortcomings of the above capacitor parallel connection and graded switching compensation scheme

Method used

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  • ARM (Advanced RISC Machine) embedded microprocessor based reactive power compensation device

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Embodiment Construction

[0011] see figure 1 , a reactive power compensation device based on an ARM embedded microprocessor, including a 32-bit microprocessor based on the ARM architecture, the 32-bit microprocessor is connected with 16MB non-linear Flash, 8MB SDEM, IBM linear Flash, LCD display, and communication interface , status signal input DI interface, status signal output DO interface and keyboard. The 32-bit microprocessor is a 32-bit microprocessor whose model is S3C44B0X. The communication interface includes TCP / IP protocol and two RS232 serial communication interfaces. The keyboard is a 4×4 keyboard.

[0012] The S3C4480X microprocessor that the present invention adopts is the cost-effective and high-performance microcontroller solution that Samsung provides for handheld devices and general applications. It is a 32-bit embedded processor with ARM7TDMI as the core, working at 66 MHz , with 8 memory banks (Bank), each Bank up to 32 Mb, a total of up to 256 Mb. Adopt L / O address and stor...

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Abstract

An ARM embedded microprocessor based reactive power compensation device comprises a 32-bit microprocessor based on an ARM framework, wherein the 32-bit microprocessor is connected with a 16 MB nonlinear Flash, 8 MB SDEM (software development engineering methodology), IBM (international business machine) linear Flash, an LCD (liquid crystal display), a communication interface, a status signal input DI (digital input) interface, a status signal output DO (digital output) interface and a keyboard. According to the continuous reactive power compensation device which is based on a soft switching technology and suitable for a high-voltage three-phase symmetric system, the continuous adjustment of reactive power can be achieved, a power factor is closer to 1, over compensation cannot be caused, and the problem of repeated switching is solved.

Description

technical field [0001] The invention relates to a reactive power compensation device, in particular to a reactive power compensation device based on an ARM embedded microprocessor. Background technique [0002] With the development and application of power electronic technology, a large number of non-linear power electronic devices and devices are widely used in modern industry. The operation of these devices makes the reactive power loss of power grid harmonic pollution increasingly serious. How to improve and ensure power quality has become an urgent problem at home and abroad. One of the important issues to be solved. The control of static var compensator SVC (Static V stare Compensator), static var generator SVG (Static Var G.en.erator) and active filter device APF (Actiye P0wer Filter) is complicated and expensive, and parallel capacitor banks are used. To carry out reactive power compensation, it is still the main reactive power compensation device currently used in o...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/18
CPCY02E40/30
Inventor 王耀斌
Owner SHAANXI HI-TECH IND CO LTD
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