CN202721448U - SVG controller - Google Patents
SVG controller Download PDFInfo
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- CN202721448U CN202721448U CN2012204124387U CN201220412438U CN202721448U CN 202721448 U CN202721448 U CN 202721448U CN 2012204124387 U CN2012204124387 U CN 2012204124387U CN 201220412438 U CN201220412438 U CN 201220412438U CN 202721448 U CN202721448 U CN 202721448U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/10—Flexible AC transmission systems [FACTS]
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Abstract
The utility model relates to a SVG controller, which comprises a microcontroller, a signal input/output end is connected to an AD converter, the microcontroller employs a TMS320F28335 chip, and the AD converter employs a MAX110049 chip. The microcontroller employs a high-speed floating-point type DSP chip-TMS320F28335 chip, each module has three protection interruptions, can determine the position of the power circuit fault; the AD converter employs the 16 site ADMAX110049 chip with power supply by single power and high input resistance, an operational circuit is not required, a bipolarity signal can be directly accessed, the disadvantage of the above technical schemes can be overcome, the chips amount is greatly reduced, the power requirement is reduced, the volume of the controller is narrowed, the cost is reduced, and the efficiency is enhanced.
Description
Technical field
The utility model relates to a kind of controller, especially a kind of SVG controller.
Background technology
Along with various increase of AC network load, voltage fluctuation, idle and harmonic wave have the trend of increase, and the SVG compensation way will progressively replace the compensation way of switched capacitor formula.The dsp chip of existing SVG controller generally adopts the TMS320F2812 chip, and modulus conversion chip adopts AD7865 or AD7656(ADS8556) chip, the shortcoming of existence is as follows:
The first, TMS320F2812 chip is fixed-point type dsp processor chip, when processing floating data, need to program carry out that the data format dress changes, speed is slow, for requirement of real time, must adopt the multi-DSP processor; Each module of TMS320F2812 chip only has 1 tunnel protection to interrupt, and can't judge the accurate location of power circuit fault;
The second, AD7865 chip is powered by multiple power supplies, and sinusoidal signal can't be directly processed in the unipolarity input, needs to make up discharge circuit, adopts the external voltage standard that the double polarity sine signal is carried out the level lifting, the conversion unipolar signal; AD7865 chip signal input channel input resistance is little, must must build discharge circuit before each passage and carry out signal condition; AD7656 chip and ADS8556 chip are complete compatible bipolarity analog-digital chips, can directly process the double polarity sine signal, have equally the multiple power supplies power supply, the problem that the signal input channel input resistance is little also must must be built discharge circuit and be carried out signal condition before each passage.
Therefore, existing SVG controller chip is many, power requirement is high, circuit is complicated, volume is large, power consumption is large, cost is also higher.
The utility model content
The purpose of this utility model is to provide a kind of SVG controller that can dwindle the controller volume, reduce cost, raise the efficiency.
For achieving the above object, the utility model has adopted following technical scheme: a kind of SVG controller, comprise microcontroller, and its signal input output end links to each other with AD converter, described microcontroller adopts the TMS320F28335 chip, and described AD converter adopts the MAX110049 chip.
As shown from the above technical solution, the microcontroller in the utility model adopts high-speed floating point type dsp chip---and TMS320F28335 chip, each module have 3 tunnel protections to interrupt, and can judge the power circuit location of fault; AD converter adopts 16 AD MAX110049 chips of single power supply, high input resistance, need not discharge circuit, bipolar signal can directly access, overcome the existing deficiency of aforementioned techniques scheme, greatly reduce number of chips, reduce power requirement, dwindled controller volume, reduced cost, improved efficient.
Description of drawings
Fig. 1 is circuit block diagram of the present utility model;
Fig. 2 is circuit theory diagrams of the present utility model.
Embodiment
A kind of SVG controller, comprise microcontroller 1, its signal input output end links to each other with AD converter 4, described microcontroller 1 adopts the TMS320F28335 chip, described AD converter 4 adopts MAX110049 chip 16 bit synchronizations sampling AD converter 4 that electrical network piezoelectric voltage, load current and external power circuital current are converted to digital signal, provides to microcontroller 1; The program of microcontroller 1 and storage thereof reads digital signal, calculates size and the phase place of the reactive current of load; The program of microcontroller 1 and storage thereof provides correct SPWM signal through computing.As shown in Figure 1.
As shown in Figure 1, the input/output terminal of described microcontroller 1 links to each other with display, its signal input part links to each other with keyboard, its signal output part links to each other with interface circuit 5, described display is liquid crystal display 2, described keyboard is button keyboard 3, and 5 inching buttons are set on the described button keyboard 3.Interface circuit 5 amplifies the SPWM signal, drives the external power circuit, and the electric current of generation and the reactive current of load be equivalence as far as possible, realizes the local compensation of reactive current, makes the electric current in the equipment for power transmission and distribution minimum, reduces energy consumption, burning voltage; Button keyboard 3 is used for operational factor and the control strategy that input comprises setting.
As shown in Figure 2, the following device of main employing among the embodiment of the present utility model:
1 liquid crystal display 2, namely chip IC 1;
5 inching button S1, S2, S3, S4 and S5;
The 32-bit microprocessor IC2 that 1 model is TMS320F218335 is as microcontroller 1;
2 models are 16 figure place weighted-voltage D/A converter IC3 and the IC4 of MAX11049, as AD converter 4;
1 bus transceiver IC5 that model is 74HC245;
6 high speed photo coupling IC6, IC7, IC8, IC9, IC10 and IC11 that model is TLP250;
Terminal CON1, CON2 access line voltage, load current and external power circuital current signal;
The SPWM signal that terminal CON3 output is amplified through isolation.
In a word, the utility model is measured load current and external power circuital current in real time, with correct SPWM signal driver external power circuit, makes the electric current of external power circuit generation and the reactive current component equivalence of load, realizes the local compensation of reactive current.In addition, the number of chips that the utility model adopts is few, and power requirement is low, and the controller volume is little, cost is low, efficient is high, is convenient to safeguard.
Claims (4)
1. SVG controller, it is characterized in that: comprise microcontroller (1), its signal input output end links to each other with AD converter (4), and described microcontroller (1) adopts the TMS320F28335 chip, and described AD converter (4) adopts the MAX110049 chip.
2. SVG controller according to claim 1, it is characterized in that: the input/output terminal of described microcontroller (1) links to each other with display, and its signal input part links to each other with keyboard, and its signal output part links to each other with interface circuit (5).
3. SVG controller according to claim 2, it is characterized in that: described display is liquid crystal display (2), described keyboard is button keyboard (3).
4. SVG controller according to claim 3 is characterized in that: 5 inching buttons are set on the described button keyboard (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204124387U CN202721448U (en) | 2012-08-20 | 2012-08-20 | SVG controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204124387U CN202721448U (en) | 2012-08-20 | 2012-08-20 | SVG controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202721448U true CN202721448U (en) | 2013-02-06 |
Family
ID=47623252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204124387U Expired - Lifetime CN202721448U (en) | 2012-08-20 | 2012-08-20 | SVG controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202721448U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103258455A (en) * | 2013-03-23 | 2013-08-21 | 郭玉 | Automobile sensor signal simulated practical training device |
-
2012
- 2012-08-20 CN CN2012204124387U patent/CN202721448U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103258455A (en) * | 2013-03-23 | 2013-08-21 | 郭玉 | Automobile sensor signal simulated practical training device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 230031, No. 9, Bridge Road, Shushan Industrial Park, Hefei, Anhui Patentee after: ANHUI ZHONGXIN JIYUAN INFORMATION TECHNOLOGY CO.,LTD. Address before: 230031, No. 9, Bridge Road, Shushan Industrial Park, Hefei, Anhui Patentee before: Anhui Zhongxing Jiyuan Information Technology Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130206 |
|
| CX01 | Expiry of patent term |