CN201260133Y - Large power electric electronic interface device - Google Patents
Large power electric electronic interface device Download PDFInfo
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- CN201260133Y CN201260133Y CNU2008201910288U CN200820191028U CN201260133Y CN 201260133 Y CN201260133 Y CN 201260133Y CN U2008201910288 U CNU2008201910288 U CN U2008201910288U CN 200820191028 U CN200820191028 U CN 200820191028U CN 201260133 Y CN201260133 Y CN 201260133Y
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Abstract
The utility model provides a high-power power electronic interface device, which adopts a total control device IGBT driving unit and a three-phase rectification plus inversion structure, and comprises an isolating transformer, a rectification circuit, an inverter circuit and an interface control unit; the rectification circuit is connected with an alternating current system by the isolating transformer, and the inverter circuit is connected with an examined device basic circuit; and the interface control unit receives signals from a real time digital simulation subsystem, and is connected with the rectification circuit and the inverter circuit respectively. The device replaces the traditional power amplifier in a power supply quality and energy-saving equipment comprehensive experimental platform, and provides energy to the power system environment required by the examined device and completes the input and feedback of the required energy; the device can increase interface electric parameters, realize large capacity of power throughput, and solve the performance limitation problem of a power amplifier in a digital-physical hybrid simulation system in the experimental platform; meanwhile, the device provides high voltage and high power non-linear power electronic loads to the experimental platform.
Description
Technical field
The utility model relates to a kind of high-power electric and electronic interface arrangement, be particularly related to a kind of high-power electric and electronic interface arrangement that is used for the quality of power supply and energy-saving equipment synthesis experiment platform, belong to quality of power supply control, improve equipment experiment porch field and high-power electric and electronic technical field.
Background technology
The quality of power supply is a system problem, not only relevant with load, and it is relevant with the network configuration of system, system parameters, operational mode etc., therefore, examination quality of power supply equipment not only needs the various electric parameters and the performance of testing equipment, more prior is that equipment is placed electric power system, comprehensively weighs operation function and every performance index of equipment.Therefore the examination of quality of power supply equipment need be based upon on the real-time simulation analog platform based on electric power system, and should provide have high voltage, the experimental ability of big electric current.
Large-scale popularization in electric power system is used along with quality of power supply control appliance and various electric power energy-saving equipment, and traditional only slave unit is made angle can not adapt to the modern power systems development to the wire examination method of equipment needs.How the operation and the control of holding this kind equipment from the angle of electric power system is estimated most important to the function of this kind equipment.For example, putting into operation to the Voltage Stability Control of certain electrical network and reducing network loss etc. of reactive-load compensation equipment has obvious benefit, need examination a lot of with the problem of assessment, except the safety of equipment, reliability index, the problem that is related to power system operation and control aspect has: (1) how quantitatively calibrating improves effect to line voltage; (2) how quantitatively to reduce the size and the energy-saving benefit thereof of network loss; (3) after equipment drops into electrical network, whether adaptive with the parameter of electrical network, whether there are problems such as harmonic wave amplification or resonance; (4) equipment puts into operation the back to the influence of electric grid relay protection etc.And for example, the test of power quality controlling equipment is divided into type approval test, delivery test and field test, because the restriction of wire examination method and equipment, many tests can't be carried out.The pilot project that is difficult to assess in the product design stage is a lot of in a word, test as harmonic suppression effect, because lacking high-power harmonic source is difficult to carry out, even possess high-power harmonic source, but can't inject harmonic wave at real system, thereby the standard of examination or tight excessively or loose partially, therefore cause the standard of much electricity quality equipment to be difficult to formulate, or the poor operability of standard, cause standard to lack restraining force.Energy-conservation class electric equipment examination is needed direct run with load usually, the energy-saving effect that this class electric equipment produces is mostly from load itself, as the pipe network system of blower fan water pump class, lamp optical system etc., need simulate all kinds of load characteristics to the examination of this kind equipment.
Set up the quality of power supply and the energy-saving equipment synthesis experiment platform need address the problem, how one is for provided a kind of power grid environment of realistic service conditions by apparatus for checking, to be placed the virtual electric power system by apparatus for checking, carry out various post-installation reviews near actual condition; Fed back in the virtual electric power system by the various running statuses of apparatus for checking, examine in real time and estimate, and carry out performance evaluation according to its result by the operation and the control situation of apparatus for checking in electric power system.It two is how to make up the digital large power electronic load, is used to simulate the arbitrary load characteristic.Therefore need to solve following problem:
1) how to make up required virtual digit power system environment;
One of key problem that makes up the quality of power supply and energy-saving equipment synthesis experiment platform is to make up the virtual digit electric power system.Input by making up a kind of real-time simulation, output signal and by the interface of apparatus for checking, make by the restriction relation (voltage-current characteristic/differential of voltage, electric current-algebraic model) of examining electric equipment in the virtual digit electric power system, to show as a kind of element and participate in the real-time simulation calculating, node voltage, electric current algebraic equation according to real-time calculating, by the fast controllable property of power electronic system, provide energy Flow and exchange required when being moved by apparatus for checking.On the one hand, passed through links such as voltage, current transformer, A/D and photoelectricity isolation, be converted to weak electric signal and input to the virtual digit electric power system, be used to control input variable, form the boundary condition that real-time digital calculates by apparatus for checking node voltage and branch current.On the other hand, each node voltage signal of virtual digit electric power system is exported by port, carries out power amplification by high power electronic equipment, for being powered by apparatus for checking, forms by examination electric equipment required electric power system environments.
2) how provide high voltage, high-power electric and electronic interface arrangement for experiment porch;
In quality of power supply all-around test stand, high power electronic equipment is controlled by the virtual digit electric power system, for being provided energy by examination electric equipment required power system environment and finishing the input and the feedback of institute's energy requirement.Be to realize quality of power supply equipment examination target, the required high-power electric and electronic power requirement of synthesis experiment platform has quick response, characteristics such as random waveform can be provided.
No matter be power system environment or load simulation environment, the high-power electric and electronic interface arrangement will be realized energy exchange and feedback, make the required power consumption of whole experimental system minimum.
Summary of the invention
The purpose of this utility model is to provide a kind of high-power electric and electronic interface arrangement, it replaces traditional power amplifier in the quality of power supply and energy-saving equipment synthesis experiment platform, for being provided energy by the required power system environment of apparatus for checking and finishing the input and the feedback of institute's energy requirement, it provides a kind of power grid environment of realistic service conditions, to be placed the virtual electric power system by apparatus for checking, carry out various post-installation reviews near actual condition; It improves the interface electric parameter simultaneously, realizes handling up of larger capacity power, has solved the performance limitations problem of numeral in the quality of power supply and the energy-saving equipment synthesis experiment platform-physical mixed analogue system intermediate power amplifier.
The technical solution of the utility model is: a kind of high-power electric and electronic interface arrangement, it is characterized in that: adopt full control device IGBT driver element and fly-wheel diode to constitute three phase rectifier+inverter structure, mainly form by isolating transformer, rectification circuit, inverter circuit and interface control unit; Rectification circuit connects AC system by isolating transformer, and inverter circuit connects by the apparatus for checking basic circuit; Interface control unit receives the signal from the real-timedigital simulation subsystem, and is connected with inverter circuit with rectification circuit respectively.
Aforesaid high-power electric and electronic interface arrangement is characterized in that: when the high-power nonlinear-load of needs, rectified three-phase circuit and inverter circuit are exchanged.
Aforesaid high-power electric and electronic interface arrangement is characterized in that: it is the input, outputting data signals of real-timedigital simulation subsystem and by the interface between the apparatus for checking.
Operation principle of the present utility model is: in the quality of power supply and energy-saving equipment synthesis experiment platform, adopt the power amplifier in the utility model replacement conventional hybrid analogue system, it is back-to-back converter in essence; Current transformer is controlled by the boundary voltage digital signal of real-timedigital simulation subsystem output, exportable random waveform under the control of this signal.The energy of high-power electric and electronic interface arrangement is taken from electrical network, according to being regulated arbitrarily by the big I of apparatus for checking rated voltage, power, so the electric parameter of high-power electric and electronic interface arrangement can reach by the level of the on-the-spot operation of apparatus for checking, and can and comprise the high-power electric and electronic interface arrangement and be carried out four-quadrant meritorious, idle exchange by the dynamic physical subsystem of apparatus for checking according to actual conditions, realize the structure and the simulation of on-the-spot running environment.
Because the high-power electric and electronic interface arrangement adopts converter structure, rectification and inverter circuit can arbitrarily be controlled conversion each other, but so high-power nonlinear-load of high-power electric and electronic interface arrangement double as, nonlinear-load is by being driven by apparatus for checking, the character of load, parameter are then by the real-timedigital simulation subsystem controls, this load can be simulated all kinds of load characteristics, for experiment porch provides the load environment under the control of real-timedigital simulation subsystem.Wherein, rectification circuit adopts independent control mode; Consider the influence of DC side load variations, reduce to inject the harmonic wave of electrical network as far as possible.Inverter circuit requires trace port signal fast, and the dead beat control technology that adopts response speed to be exceedingly fast realizes the accurate tracking of port signal.
In the quality of power supply and energy-saving equipment synthesis experiment platform, the dynamic physical analog subsystem forms corresponding aanalogvoltage, current signal at its network port under the control of real-timedigital simulation subsystem; The high-power electric and electronic interface arrangement is amplified to this signal by the operation level at apparatus for checking scene.The operational factor of the virtual electric power system that the real-timedigital simulation subsystem constitutes sends to the dynamic physical analog subsystem, and the running status of each element of system carried out the real-time parameter identification, get the electric current of dynamic physical analog subsystem point of interface as the node injection current in each simulation step length, its running status is joined in the simulation calculation of real-timedigital simulation subsystem, realize under the laboratory condition quality of power supply and energy-saving equipment being tested the examination experiment.By the high-power electric and electronic interface arrangement the input of real-timedigital simulation subsystem, outputting data signals with by docking between the apparatus for checking, make the calculating that in the virtual digit electric power system, is shown as a kind of restriction relation (voltage-current characteristic/differential of electric current and voltage-algebraic model) participation real-time simulation of element by apparatus for checking, according to the node voltage electric current algebraic equation of real-time calculating, required energy Flow and exchange when the fast controllable property by the high-power electric and electronic interface arrangement provides and moved by apparatus for checking.
The beneficial effects of the utility model are: it replaces traditional power amplifier in the quality of power supply and energy-saving equipment synthesis experiment platform, for being provided energy by examination electric equipment required power system environment and finishing the input and the feedback of institute's energy requirement, and can respond and provide random waveform fast, improve the interface electric parameter, realize handling up of larger capacity power, solved the performance limitations problem of numeral in the quality of power supply and the energy-saving equipment synthesis experiment platform-physical mixed analogue system intermediate power amplifier; It provides high voltage, high-power non-linear power electronics load for experiment porch simultaneously, and this is loaded under the control of real-timedigital simulation subsystem, can simulate all kinds of load characteristics, for experiment porch provides the load environment.
Description of drawings
Fig. 1 adopts the synthesis experiment platform The general frame of the quality of power supply of the present utility model and energy-saving equipment.
Fig. 2, the structured flowchart of the utility model embodiment.
Fig. 3, the interface control unit theory diagram among Fig. 2.
Embodiment
Below in conjunction with drawings and Examples the utility model high-power electric and electronic interface arrangement is described in detail.
Mark among Fig. 1: 1-real-timedigital simulation subsystem, 2-high-power electric and electronic interface arrangement, 3-dynamic physical analog subsystem, 4-is by apparatus for checking, 5-controlling unit, 6-basic circuit, 7-overall situation control unit, 8-man-machine interface, 9-database, the 10-data analysis, 11-watch-dog A, 12-watch-dog B, 13-voltage/current instrument transformer, 14-light is every, 15-modulus converter A/D, 16-digital equivalent controlled source, 17-output port, 18-Digital Simulation unit;
Mark among Fig. 2: 19-isolating transformer, 20-rectification circuit, 21-inverter circuit, 22-interface control unit, 23-AC system;
Mark among Fig. 3: 24-main circuit control DSP, 25-main circuit control FPGA, 26-light is every FPGA;
The synthesis experiment platform The general frame that adopts the quality of power supply of the present utility model and energy-saving equipment as shown in Figure 1, this synthesis experiment platform comprises real-timedigital simulation subsystem 1, dynamic physical analog subsystem 3 and overall control unit 7; Overall situation control unit 7 mainly is divided into man-machine interface 8, database 9 and data analysis 10 3 parts; High-power electric and electronic interface arrangement 2 is arranged in the dynamic physical analog subsystem 3, by apparatus for checking 4 and watch-dog A11, be electrically connected by controlling unit 5 in the apparatus for checking 4 and basic circuit 6, basic circuit 6 is electrically connected with high-power electric and electronic interface arrangement 2 again, and watch-dog A11 is electrically connected with high-power electric and electronic interface arrangement 2, controlling unit 5, database 9 and data analysis 10 respectively; Real-timedigital simulation subsystem 1 comprises watch-dog B12, digital equivalent controlled source 16, output port 17, Digital Simulation unit 18; Digital equivalent controlled source 16 and output port 17 are electrically connected, and watch-dog B12 is electrically connected with database 9, data analysis 10 and Digital Simulation unit 18 respectively;
The signal of output port 17 in the real-timedigital simulation subsystem 1 is transferred to high-power electric and electronic interface arrangement 2 by modulus converter A/D 15 and light every 14; Port signal and local signal that high-power electric and electronic interface arrangement 2 transmits according to real-timedigital simulation subsystem 1, the control interface operation is amplified to the actual field level with port signal; Wherein, modulus converter A/D 15, light every 14 and high-power electric and electronic interface arrangement 2 between order be electrically connected, form hardware interface, promptly dynamic physical analog subsystem 3 forms corresponding aanalogvoltage and current signal on its network port under the control of reading in signal;
The compensating signal that is produced by apparatus for checking 4 by voltage/current instrument transformer 13, light every 14 and modulus converter A/D 15 pass to real-timedigital simulation subsystem 1, real-timedigital simulation subsystem 1 feeds back to this compensating signal the output port 17 of real-timedigital simulation subsystem as digital equivalent controlled source 16; Wherein, voltage/current instrument transformer 13, the light order every 14, between modulus converter A/D 15 and the digital equivalent controlled source 17 is electrically connected, form software interface, be voltage, the current signal of real-timedigital simulation subsystem 1 by the input boundary point, the digital quantity that after modulus converter A/D 15 conversions, obtains, the boundary condition of formation Digital Simulation subsystem 1.
Simultaneously Digital Simulation subsystem 1, high-power electric and electronic interface arrangement 2, dynamic physical analog subsystem 3, by all essential system's run signal such as apparatus for checking 4 signal transmission, be sent to the database 9 and the data analysis 10 of overall control unit 7 by watch-dog A11, B12, for storage, analyze.
The structured flowchart of the utility model embodiment as shown in Figure 2, high-power electric and electronic interface arrangement 2 mainly is made up of isolating transformer 19, rectification circuit 20, inverter circuit 21 and interface control unit 22; Rectification circuit 20 connects AC system 23 by isolating transformer 19, and inverter circuit 21 connects by the basic circuit 6 of apparatus for checking 4; The signal that interface control unit 22 receives from real-timedigital simulation subsystem 1, and be connected with inverter circuit 21 with rectification circuit 20 respectively; When the high-power nonlinear-load of needs, rectified three-phase circuit 20 and inverter circuit 21 are exchanged, rectified three-phase circuit 20 and inverter circuit 21 are made of fly-wheel diode gr1-gr6, gi1-gi6.
Interface control unit theory diagram among Fig. 2 as shown in Figure 3, rectification circuit 20 all adopts full control device IGBT driver element and DSP (Digital Signal Processing)+FPGA (field programmable gate array) structure with the controller of inverter circuit 21, divides two-layer.Upper strata control is made up of main circuit control DSP24 and main circuit control FPGA25 two boards card; Upper strata control be responsible for finishing man-machine interface, switching value open into // leave the functions such as realization, the generation of main circuit control signal of control, algorithm controls and detection algorithm.Lower floor is controlled to be light every the FPGA26 integrated circuit board, by optical fiber transmitting-receiving control and main circuit control FPGA25 cartoon news, receive the control signal that the upper strata control unit sends, distribute to each electronic power switch device of high-power electric and electronic interface arrangement 2, monitor the operating state of high-power electric and electronic interface arrangement 2 main circuits simultaneously, and upload fault message.
Claims (2)
1, a kind of high-power electric and electronic interface arrangement is characterized in that: adopt full control device IGBT driver element and fly-wheel diode to constitute three phase rectifier+inverter structure, mainly be made up of isolating transformer, rectification circuit, inverter circuit and interface control unit; Rectification circuit connects AC system by isolating transformer, and inverter circuit connects by the apparatus for checking basic circuit; Interface control unit receives the signal from the real-timedigital simulation subsystem, and is connected with inverter circuit with rectification circuit respectively.
2, high-power electric and electronic interface arrangement according to claim 1 is characterized in that: when the high-power nonlinear-load of needs, rectified three-phase circuit and inverter circuit are exchanged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201910288U CN201260133Y (en) | 2008-09-25 | 2008-09-25 | Large power electric electronic interface device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201910288U CN201260133Y (en) | 2008-09-25 | 2008-09-25 | Large power electric electronic interface device |
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| Publication Number | Publication Date |
|---|---|
| CN201260133Y true CN201260133Y (en) | 2009-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201910288U Expired - Lifetime CN201260133Y (en) | 2008-09-25 | 2008-09-25 | Large power electric electronic interface device |
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| Country | Link |
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| CN (1) | CN201260133Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812309A (en) * | 2012-11-14 | 2014-05-21 | 中国北车股份有限公司 | System and method for controlling IGBT driver board |
| CN111179709A (en) * | 2020-03-13 | 2020-05-19 | 安徽工业大学 | Digital multifunctional power electronic technology teaching experiment platform |
-
2008
- 2008-09-25 CN CNU2008201910288U patent/CN201260133Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812309A (en) * | 2012-11-14 | 2014-05-21 | 中国北车股份有限公司 | System and method for controlling IGBT driver board |
| CN111179709A (en) * | 2020-03-13 | 2020-05-19 | 安徽工业大学 | Digital multifunctional power electronic technology teaching experiment platform |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090617 |
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| CX01 | Expiry of patent term |