CN202150697U - STATCOM controlling device based on hybrid chaotic sequence generator - Google Patents
STATCOM controlling device based on hybrid chaotic sequence generator Download PDFInfo
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- CN202150697U CN202150697U CN201020539306U CN201020539306U CN202150697U CN 202150697 U CN202150697 U CN 202150697U CN 201020539306 U CN201020539306 U CN 201020539306U CN 201020539306 U CN201020539306 U CN 201020539306U CN 202150697 U CN202150697 U CN 202150697U
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Abstract
Disclosed is an STATCOM controlling device based on a hybrid chaotic sequence generator, comprising a DSP unit connected with a pulse generation unit; the pulse generation unit connected with the DSP unit through a data line and a control line, and then connected with a power driving and protection unit; the power driving and protection unit connected with the pulse generation unit and a hybrid cascaded multilevel inverter unit; and the hybrid cascaded multilevel inverter unit connected with the pulse generation unit and an electric power system. Aimed at the requirements of an STAMCOM for an inversion unit, and utilizing the high speed and parallel processing capability of a CPLD and the characteristics of a hybrid chaotic sequence, the utility model provides an STATCOM controlling device based on a hybrid chaotic sequence generator. A digital logic of the hybrid chaotic sequence generator is designed by using a VHDL language through an MAT+PLUSII platform, thus realizing the CSPWM modulation for the STATCOM system, realizing control of the STATCOM system, and reaching better reactive compensation effect.
Description
Technical field
The utility model belongs to flexible transmission system (FACTS---Flexible Alternative Current Transmission System) STATCOM (STATCOM---Static Synchronous Compensator) equipment and electric and electronic technical field.Be specifically related to a kind of STATCOM control device of mixed chaos sequencer.
Background technology
Along with the expansion and the through-put power of network system scale continues to increase, the damping of low frequency region pattern is constantly reducing, and makes that the low-frequency oscillation of electric power system is more serious.In recent years, in order to improve the ability to transmit electricity of existing transmission system, except increasing transmission line, the extensive use of flexible AC transmitting system device is progressively replacing traditional electric device.
STATCOM can realize quickly and smoothly absorbing the purpose of perception and capacitive reactive power in electric power system; Can better realize compensation to reactive power; Reduce voltage flicker, realize that voltage is stable; The imbalance of the subsynchronous concussion of damping, minimizing voltage and current, and in power distribution network, be used to improve quality of power supply or the like, all have very big advantage at aspects such as regulating system voltage, correcting power factors, balanced load, filtering harmonic; And it has advantages such as the starting nothing is impacted, regulated continuously, response is quick, floor space is little; Become the most promising reactive power compensator at present, develop rapidly in the high-voltage large-capacity electric power system is one of important composition parts of flexible AC transmitting system.
STATCOM just becomes the research focus with its numerous superiority; But whether STATCOM can well reach the effects such as node voltage, damping system vibration, raising transmission system steady stability and transient stability of keeping in the electric power system desired, and key is the design level of its controller.The utility model is studied based on operation principle, the composition mode of STATCOM, and has proposed a kind of design framework of STATCOM controller, uses CPLD to design to wherein pulse generator, and realizes the CSPWM modulation to inversion unit.
The utility model is based on a kind of STATCOM control device of mixed chaos sequencer.To the requirement of STATCOM to inversion unit, utilize high speed, parallel processing capability and the mixed chaos sequence characteristic of CPLD, designed a kind of mixed chaos sequencer of STATCOM.This generator is accepted CSPWM (Chaos SPWM) control variables λ, the δ that digital signal processor (DSP) writes through the I/O mouth, regularly produces the CSPWM pulse signal by CPLD then.CPLD can be independent of the formation that DSP carries out start pulse signal after initialization.Utilize MAX+PLUS II platform, adopt the Digital Logic of VHDL language design generator, thereby realize CSPWM modulation, realize control, reach better inactive power compensation STATCOM to the STATCOM system.
The utility model content
The purpose of the utility model provides a kind of STATCOM control device of mixed chaos sequencer; This system utilizes MAX+PLUS II platform; In conjunction with of the control of VHDL hardware description language to the CPLD chip, accept CSPWM control variables δ, the λ that digital signal processor (DSP) writes through the I/O mouth, regularly produce the CSPWM pulse signal by CPLD then; Reach control fast and accurately, in time realize reactive power compensation system to STATCOM.
The STATCOM control device based on the mixed chaos sequencer that the utility model provides comprises:
DSP unit: be connected with the pulse generation unit; Be used for the realization of data acquisition, feedback and algorithm; Collection, conversion on-site signal; Realize manual adjustments, automatic idle adjusting and multi objective fuzzy controlled function; Utilize the mixed chaos sequence to realize the SPWM modulation, be used for reaching burning voltage, improve the purpose of the transient stability limit, damped oscillation, also be used for debugging and the test job of STATCOM;
The pulse generation unit is the CPLD unit: be connected with the DSP unit by data wire and control line, join with power drive and protected location then;
Power drive and protected location: join with pulse generation unit CPLD and Mixed cascading multi-electrical level inverter unit;
Mixed cascading multi-electrical level inverter unit: join with pulse generation unit and electric power system.
The utility model is connected with man-machine interface, DSP unit, CPLD unit, MCU unit through the CAN bus based on the network-type DSP+CPLD control structure of CAN bus simultaneously, and links to each other with the Long-distance Control PC through ICP/IP protocol through man-machine interface, sees Fig. 3.
Described power drive and protected location comprise:
Photoelectric isolating circuit: link to each other with power amplification circuit;
Power amplification circuit: link to each other with power drive pipe circuit with photoelectric isolating circuit; One of power amplification circuit comprises the drive circuit of amplification "+A1 " pulse mutually, contains optocoupler U9, diode D1, resistance and triode N1; Amplify the drive circuit of " A1 " pulse, contain optocoupler U10, diode D2, resistance and triode N2; Amplify the drive circuit of "+A2 " pulse, contain optocoupler U11, diode D3, resistance and triode N3; Amplify the drive circuit of " A2 " pulse, contain optocoupler U12, diode D4, resistance and triode N4; In like manner other two totally 12 pulse driving circuits mutually;
Power drive pipe circuit: link to each other with power amplification circuit.
Described Mixed cascading multi-electrical level inverter unit comprises:
Energy storage device: link to each other with inverter module;
Inverter module: each module is made up of 4 IGBT unit, and N module amounts to 4*N IGBT unit;
Filter: constitute by the LC filter circuit, link to each other with protected location, link to each other with electrical network then with the prime power drive.
The generator unit of described realization mixed chaos sequence (Fig. 7,8) comprising:
Mainly, go the SPWM that modulates STATCOM to realize to modulation to inversion unit according to the periodicity and the Rapid Realization uniformity of mixed chaos sequence (infinitely folding chaos sequence and Chebyshev chaos sequence).Utilize MAX+Plus II design platform to realize the generator design of mixed chaos sequence.
The VHDL hardware description language is mainly used in structure, behavior and the interface of description control device.The structure of control device is described with finite state machine, and interface is meant being connected of PC and CPLD chip.
The CPLD chip includes macro block, programmable interconnector resource and basic logical gate, and its output signal is connected with power driving circuit, adopts the SPWM pulse generator of a special use of VHDL language design.The CPLD chip receives the command signal that controller sends at any time, produces three-phase six road SPWM pulse signals with dead band voluntarily according to instruction then.Simultaneously triggering system has the certain protection function, in case when preventing that inversion from failure taking place, burn peripheral equipment.
MAX+Plus II is mainly used in design new unit and extensive CPLD/FPGA, uses simply, and desin speed is very fast.
The utility model operation principle:
The related STATCOM control device based on the mixed chaos sequencer of this case is intended to the requirement to inversion unit to STATCOM; Utilize high speed, parallel processing capability and the mixed chaos sequence characteristic of CPLD unit, designed a kind of mixed chaos sequencer of STATCOM.This generator is accepted CSPWM (Chaos SPWM) control variables λ, the δ that digital signal processor (DSP) writes through the I/O mouth, regularly produces the CSPWM pulse signal by the CPLD unit then.The CPLD unit can be independent of the formation that the DSP unit carries out start pulse signal after initialization.Utilize MAX+PLUS II platform, adopt the Digital Logic of VHDL language design generator, thereby realize CSPWM modulation, realize control, reach better inactive power compensation STATCOM to the STATCOM system.
Advantage of the utility model and good effect:
(1) programming is much easier with respect to the STATCOM controller being carried out integral body to adopt modular construction to make the program composition of each functional module.(2) utilize the mixed chaos sequence to realize modulation to SPWM.(3) dateout of each functional module of STATCOM is easy to monitoring, helps the fault detect of STATCOM controller.(4) introduce the interface of PC, feasible simple to operateization to STATCOM as man-machine interaction.(5) because the introducing of PC, be convenient to being connected of underlying protocol and ICP/IP protocol, therefore can be through being connected with INTERNET, realization is to the Long-distance Control of STATCOM.(6) controller has total digitalization, has the partial protection function, high-speed parallel is handled, adopt characteristics such as advanced data processing and control algolithm.
Description of drawings
Fig. 1 is the STATCOM control device general structure sketch map of the related a kind of mixed chaos sequence of the utility model.
Fig. 2 is the structural representation of pulse generation unit of the STATCOM control device of the related a kind of mixed chaos sequence of the utility model.
Fig. 3 is the general illustration of controller of the STATCOM control device of the related a kind of mixed chaos sequence of the utility model.
Fig. 4 is the STATCOM control device power driving circuit structural representation of the related a kind of mixed chaos sequence of the utility model.
Fig. 5 is the phase structure figure of mixed type cascaded multilevel inverter of the STATCOM control device of the related a kind of mixed chaos sequence of the utility model.
Fig. 6 is the three-phase modulations structure chart of CSPWM of mixed type cascaded multilevel inverter of the STATCOM control device of the related a kind of mixed chaos sequence of the utility model.
Fig. 7 is the generation module sketch map of mixed chaos sequence of the STATCOM control device of the related a kind of mixed chaos sequence of the utility model
Fig. 8 is the mixed chaos sequence realization flow figure of the STATCOM control device of the related a kind of mixed chaos sequence of the utility model.
Embodiment
Embodiment 1:
A kind of STATCOM control device (see figure 1) native system based on the mixed chaos sequencer is by forming with lower unit:
Realize the DSP unit of control, pulse generation unit, power drive unit; The generator unit of control impuls, power drive unit, Mixed cascading multi-electrical level inverter unit; And realize mixed chaos sequencer unit, be connected in the no-power compensation function of realizing in the electric power system electric power system.
The DSP unit (Fig. 2,3) that data acquisition, feedback and algorithm are realized: the output current of collection, conversion on-site signal such as system voltage, STATCOM device and dc voltage etc.; Realize functions such as manual adjustments, automatic idle adjusting and multi objective fuzzy control; Be used for reaching burning voltage, improve the purpose of the transient stability limit, damped oscillation, also be used for debugging and the test job of STATCOM.The design's main characteristic is to utilize the mixed chaos sequence to realize the SPWM modulation.
Remote monitoring and protection: be used for protection action (Fig. 2) is monitored, diagnoses and implemented to the fault of control impuls.
Clock-pulse generator unit (see figure 3) according to the IGBT pilot angle that dsp controller sends, produces high-precision IGBT trigger impulse.
Realize mixed chaos sequencer unit (Fig. 7,8), mainly, go the SPWM that modulates STATCOM to realize modulation to inversion unit according to the periodicity and the Rapid Realization uniformity of mixed chaos sequence (infinitely folding chaos sequence and Chebyshev chaos sequence).Utilize MAX+Plus II design platform to realize the generator design of mixed chaos sequence.
The power driving circuit (see figure 4) comprises photoelectric isolating circuit and power amplification circuit, is made up of photoelectrical coupler and power amplifier respectively; Power drive pipe circuit with the input pulse signal through photoelectricity isolate, triode amplifies, and offers power switch circuit, when the input signal of the comparing unit that receives when power driving circuit is 1, the conducting of output trigger impulse control Cascade H bridge circuit; Otherwise make its shutoff.One of said three-phase pulse amplifying circuit comprises the drive circuit of amplification "+A1 " pulse mutually, contains optocoupler U9, diode D1, resistance and triode N1; Amplify the drive circuit of " A1 " pulse, contain optocoupler U10, diode D2, resistance and triode N2; Amplify the drive circuit of "+A2 " pulse, contain optocoupler U11, diode D3, resistance and triode N3; Amplify the drive circuit of " A2 " pulse, contain optocoupler U12, diode D4, resistance and triode N4; In like manner other two totally 12 pulse driving circuits mutually.The effect of diode D1, D2, D3 and D4 is to prevent the pulse reverse input, guarantees the circuit operate as normal.
Mixed cascading multi-electrical level inverter unit refers to that the inversion unit of being made up of the Mixed cascading multi-electrical level inverter (seeing Fig. 5,6) comprising: 4 IGBT unit of energy storage device, filter, coupling capacitance, single module, the N module amounts to 4*N IGBT unit.This circuit working process is: control impuls is from through CSPWM signal after the power driving circuit processing and amplifying; 4*N in the circuit IGBT unit reception at random is able to trigger from the signal of power driving circuit, realizes that cascade multilevel inverter closes, opens function.
The VHDL hardware description language is mainly used in structure, behavior and the interface of description control device.The structure of control device is described with finite state machine, and interface is meant being connected of PC and CPLD chip.
The CPLD chip includes macro block, programmable interconnector resource and basic logical gate, and its output signal is connected with power driving circuit, adopts the SPWM pulse generator of a special use of VHDL language design.The CPLD chip receives the command signal that controller sends at any time, produces three-phase six road SPWM pulse signals with dead band voluntarily according to instruction then.Simultaneously triggering system has the certain protection function, in case when preventing that inversion from failure taking place, burn peripheral equipment.
MAX+Plus II is mainly used in design new unit and extensive CPLD/FPGA, uses simply, and desin speed is very fast.
Claims (3)
1. STATCOM control device based on the mixed chaos sequencer is characterized in that this system comprises:
DSP unit: be connected with the pulse generation unit;
The pulse generation unit is the CPLD unit: be connected with the DSP unit by data wire and control line, join with power drive and protected location then;
Power drive and protected location: join with pulse generation unit and Mixed cascading multi-electrical level inverter unit;
Mixed cascading multi-electrical level inverter unit: join with pulse generation unit and electric power system.
2. control device according to claim 1 is characterized in that described power drive comprises for conventional the connection with protected location:
Photoelectric isolating circuit: link to each other with power amplification circuit;
Power amplification circuit: link to each other with power drive pipe circuit with photoelectric isolating circuit;
Power drive pipe circuit: link to each other with power amplification circuit.
3. control device according to claim 1 is characterized in that described Mixed cascading multi-electrical level inverter unit, comprising:
Energy storage device: link to each other with inverter module;
Inverter module: each module is made up of 4 IGBT unit, and N module amounts to 4*N IGBT unit;
Filter: constitute by the LC filter circuit, link to each other with protected location, link to each other with electrical network then with the prime power drive.
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| CN201020539306U CN202150697U (en) | 2010-09-25 | 2010-09-25 | STATCOM controlling device based on hybrid chaotic sequence generator |
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| CN201020539306U CN202150697U (en) | 2010-09-25 | 2010-09-25 | STATCOM controlling device based on hybrid chaotic sequence generator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832909A (en) * | 2012-09-10 | 2012-12-19 | 浙江晨泰科技股份有限公司 | Portable pulse signal generator |
| CN104037786A (en) * | 2014-07-04 | 2014-09-10 | 湖南工业大学 | Cascading STATCOM steady-state zero-error control method |
| CN105186530A (en) * | 2015-09-15 | 2015-12-23 | 安徽佑赛科技有限公司 | D-STATCOM-device-based split-phase repetitive learning control method |
-
2010
- 2010-09-25 CN CN201020539306U patent/CN202150697U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832909A (en) * | 2012-09-10 | 2012-12-19 | 浙江晨泰科技股份有限公司 | Portable pulse signal generator |
| CN104037786A (en) * | 2014-07-04 | 2014-09-10 | 湖南工业大学 | Cascading STATCOM steady-state zero-error control method |
| CN105186530A (en) * | 2015-09-15 | 2015-12-23 | 安徽佑赛科技有限公司 | D-STATCOM-device-based split-phase repetitive learning control method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID XINYUAN ZHANGJIAKOU SCENERY STORAGE DEM Effective date: 20131205 Owner name: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: TIANJIN UNIVERSITY OF TECHNOLOGY Effective date: 20131205 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liang Tingting Inventor after: Kong Xiangfu Inventor after: Zhou Xuesong Inventor after: Li Man Inventor after: Ma Youjie Inventor after: Chen Hao Inventor after: Liu Yiqi Inventor after: Gao Mingjie Inventor after: Yang Meng Inventor after: Liu Zhihao Inventor before: Zhou Xuesong Inventor before: Li Man Inventor before: Ma Youjie Inventor before: Chen Hao Inventor before: Liu Yiqi |
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| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 300384 XIQING, TIANJIN TO: 100031 XICHENG, BEIJING Free format text: CORRECT: INVENTOR; FROM: ZHOU XUESONG LI MAN MA YOUJIE CHEN HAO LIU YIQI TO: LIANG TINGTING ZHOU XUESONG LI MAN MA YOUJIE CHEN HAO LIU YIQI GAO MINGJIE YANG MENG LIU ZHIHAO KONG XIANGFU |
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| TR01 | Transfer of patent right |
Effective date of registration: 20131205 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: State Grid Xinyuan Zhangjiakou Scenery Storage Demonstration Power Plant Co., Ltd. Address before: 300384 Tianjin Xiqing District Hongqi South Road Extension Line University of science and Technology Campus Patentee before: Tianjin University of Technology |
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| CX01 | Expiry of patent term |
Granted publication date: 20120222 |
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