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Dynamic reactive power compensation controller based on instant sequence component power

A compensation controller and instantaneous sequence technology, applied in reactive power compensation, reactive power adjustment/elimination/compensation, etc., can solve problems such as theoretical application limitations

Active Publication Date: 2015-06-17
SOUTHEAST UNIV
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  • Description
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Problems solved by technology

[0005] Since Japanese scientists put forward the theory of instantaneous reactive power in the last century, the theory of instantaneous power has been widely used in fast dynamic reactive power compensation devices. The unbalanced load of the three-phase four-wire system limits the application of the theory, and it is necessary to correct it

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  • Dynamic reactive power compensation controller based on instant sequence component power
  • Dynamic reactive power compensation controller based on instant sequence component power
  • Dynamic reactive power compensation controller based on instant sequence component power

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Embodiment Construction

[0074] specific implementation plan

[0075] 1. Hardware of dynamic reactive power compensation controller based on instantaneous sequence component power

[0076] The hardware of the dynamic reactive power compensation controller based on the instantaneous sequence component power is designed according to the modular design, mainly including the following modules: digital signal processing module 1, AC sampling module 2, serial bus communication module 3, and man-machine interface module 4.

[0077] 1. Digital signal processing module

[0078] Digital signal processing module 1 includes peripheral auxiliary circuits such as DSP TMS320F2833511, external static memory SRAM12, external FLASH13, EEPROM14, real-time clock 15, watchdog timer chip 16, and buffer chip, and they constitute a basic embedded system (see appendix figure 2 ).

[0079] (1) Digital signal processor

[0080] The performance of the hardware platform is mainly reflected in the selection of the digital sign...

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Abstract

The invention discloses a dynamic reactive power compensation controller based on instant sequence component power. The dynamic reactive power compensation controller comprises a hardware portion and a software portion. The hardware portion is mainly composed of a digital signal processing module, an alternating current sampling module, a serial communication module, a man-machine interface module and the like. The software portion is mainly composed of an instant sequence component power algorithm, a capacitor switching control algorithm and the like. By means of the dynamic reactive power compensation controller, low-cost large-capacity reactive power fast compensation is achieved. The instant sequence component power algorithm can achieve self-adaptation three-phase co-phase or split-phase fast mixed compensation on balanced or unbalanced load.

Description

technical field [0001] The invention is designed based on the instantaneous sequence component power algorithm according to the reactive power requirements of the distribution network or users, and has the characteristics of modularization, networking, and intelligence, and can realize self-adaptive three-phase power distribution for balanced or unbalanced loads. The invention relates to a quasi-real-time dynamic reactive power compensation controller for phase-co-phase or phase-separate mixed compensation, which belongs to the technical field of power quality. Background technique [0002] With the increasing number of unbalanced and impactful industrial electrical equipment such as AC electric arc furnaces and rolling mills, many power quality problems such as low power factor, voltage fluctuation and flicker, and unbalanced three-phase voltage and current have arisen. Conventional low-voltage reactive power compensation devices are generally composed of controllers, paral...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/18
CPCY02E40/30
Inventor 吴在军吕振宇窦晓波胡敏强秦申蓓
Owner SOUTHEAST UNIV
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