CN114157167A - Two-level driving device based on real-time simulation controller - Google Patents
Two-level driving device based on real-time simulation controller Download PDFInfo
- Publication number
- CN114157167A CN114157167A CN202010936889.XA CN202010936889A CN114157167A CN 114157167 A CN114157167 A CN 114157167A CN 202010936889 A CN202010936889 A CN 202010936889A CN 114157167 A CN114157167 A CN 114157167A
- Authority
- CN
- China
- Prior art keywords
- driving
- real
- board
- level
- time simulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
- H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
- H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
- H02M5/453—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/458—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/483—Converters with outputs that each can have more than two voltages levels
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
- H02M7/53871—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current
- H02M7/53873—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current with digital control
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
- H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
- H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
- H02P27/14—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation with three or more levels of voltage
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Inverter Devices (AREA)
Abstract
The invention provides a two-level driving device based on a real-time simulation controller, which comprises: the processing board is provided with a conditioning circuit, and the conditioning circuit is used for conditioning an input pulse width modulation signal; the driving board is connected with the processing board, a driving module and a power module are arranged on the driving board, the driving module is used for boosting the pulse width modulation signals after conditioning, and the power module is used for inverting the pulse width modulation signals after boosting and generating variable current signals and/or variable voltage signals; the maximum driving current of the driving module is 2.5A; the maximum switching frequency of the power module is 20 KHZ. The two-level driving device based on the real-time simulation controller has a simple structure, higher switching frequency and higher driving current, enables a user to carry out secondary development based on the real-time simulation controller, and can solve the problem that the existing driver cannot meet the technical requirements.
Description
Technical Field
The invention belongs to the technical field of power supplies and power electronics, and particularly relates to a two-level driving device based on a real-time simulation controller.
Background
At present, the mainstream drivers adopt a digital Signal processor (dsp), (digital Signal processing)/arm (advanced RISC machine)/fpga (field Programmable Gate array) as a control core, which can realize a relatively complex control algorithm, and realize digitization, networking and intelligence. The Power device generally adopts a driving circuit which is designed by taking an intelligent Power module IPM (intelligent Power module) as a core, the IPM is internally integrated with the driving circuit and is provided with fault detection protection circuits such as overvoltage, overcurrent, overheat and undervoltage, and a soft start circuit is added in a main loop so as to reduce the impact of a starting process on a driver. The power driving unit firstly rectifies input three-phase power or commercial power through a three-phase full-bridge rectification circuit to obtain corresponding direct current; the rectified three-phase power or commercial power is converted by a three-phase sine PWM (pulse Width modulation) voltage inverter to drive a three-phase permanent magnet synchronous alternating current servo motor, the whole process of the power driving unit can be simply referred to as an alternating current-direct current-alternating current rectification inversion (AC-DC-AC) process, and then the single motor is controlled.
The following technical requirements are generally applied to the driver: 1. input power supply requirements: 3, alternating current is 0-380V;
2. inversion requirements: the AC-DC-AC rectification inversion function and the DC-AC inversion function are supported; 3. sampling requirement: bus voltage sampling, output current sampling and temperature sampling; 4. protection claims are as follows: and the output current is subjected to overcurrent, bus overvoltage, overtemperature and overload protection.
However, the existing driver has a plurality of technical problems: 1. the input power supply has single requirement; 2. the number of sampling paths is extremely small; 3. the topological structure is single and not universal, and cannot meet the requirements of common customers; 4. the DSP/ARM/FPGA program is solidified, and the user can not carry out secondary development. Therefore, it is urgently required to develop a new driver which meets the requirements of the prior art.
Disclosure of Invention
The embodiment of the invention provides a two-level driving device based on a real-time simulation controller, which aims to solve the problem that the existing driver cannot meet the technical requirements.
To solve the foregoing technical problem, in one aspect, an embodiment of the present invention provides a two-level driving apparatus based on a real-time simulation controller, including:
the processing board is provided with a conditioning circuit, and the conditioning circuit is used for conditioning an input pulse width modulation signal;
the driving board is connected with the processing board, a driving module and a power module are arranged on the driving board, the driving module is used for boosting the pulse width modulation signal after conditioning, and the power module is used for inverting the pulse width modulation signal after boosting and generating a variable current signal and/or a variable voltage signal;
wherein the maximum driving current of the driving module is 2.5A;
the maximum switching frequency of the power module is 20 KHZ.
According to an embodiment of the invention, the driving module comprises a driving chip, and the model of the driving chip is ACPL-332J.
According to another embodiment of the present invention, the driving module further includes a push-pull circuit connected to the driving chip, and the push-pull circuit is configured to perform a push-pull boosting process on the pulse width modulation signal received by the driving chip.
According to another embodiment of the present invention, the driving module includes a two-way push-pull circuit.
According to another embodiment of the present invention, the dc side main circuit structure of the driving board is an ac-dc-ac structure or a dc-ac structure, and the topology structure adopted by the inverter side of the driving board is any one of a single-phase half bridge, a single-phase full bridge, a two-level three-phase half bridge, a two-level three-phase full bridge, a five-level three-phase half bridge, a five-level three-phase full bridge, a three-phase three-leg bridge, and a three-phase four-leg bridge.
According to another embodiment of the present invention, the power module is an English-flying PIM module.
According to another embodiment of the invention, a sampling module is further arranged on the driving plate, and the sampling module comprises 4 voltage samples and 5 current samples.
According to another embodiment of the present invention, the two-level driving apparatus based on the real-time simulation controller further comprises an electromagnetic compatibility board, and the electromagnetic compatibility board is respectively connected with the driving board and the processing board.
According to another embodiment of the present invention, the two-level driving apparatus based on the real-time simulation controller further includes an adapter plate, and the processing board is connected to the real-time simulation controller through the adapter plate.
On the other hand, the embodiment of the invention also provides a driving system, which comprises the two-level driving device based on the real-time simulation controller and the equipment to be driven, wherein the equipment to be driven is connected with the two-level driving device based on the real-time simulation controller.
The invention has the beneficial effects that:
the pulse width modulation signal input into the two-level driving device based on the real-time simulation controller is processed by the conditioning circuit of the processing board, sent to the driving module on the driving board to be boosted to a preset voltage value, then sent to the power module to be inverted, and processed by the power module to generate a variable current-voltage signal, so that the variable current-voltage signal is used for controlling equipment to be driven. In addition, in the embodiment, the maximum driving current of the driving module is 2.5A, and the maximum switching frequency of the power module is 20 KHZ. Therefore, the two-level driving device based on the real-time simulation controller has a simple structure, higher switching frequency and higher driving current, enables a user to carry out secondary development based on the real-time simulation controller, and can solve the problem that the existing driver cannot meet the technical requirements.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic block diagram of one embodiment of a two-level drive arrangement based on a real-time emulation controller of the present invention;
FIG. 2 is a schematic block diagram of one embodiment of a drive board of a two-level drive arrangement based on a real-time emulation controller of the present invention;
FIG. 3 is a schematic diagram of a three phase half bridge main circuit of one embodiment of the drive board of the two level drive arrangement of the present invention based on a real time emulation controller;
FIG. 4 is a schematic block diagram of another embodiment of a two-level driver apparatus based on a real-time simulation controller according to the present invention;
FIG. 5 is a topological block diagram of one embodiment of an electromagnetic compatibility board of a two-level driving apparatus based on a real-time simulation controller according to the present invention;
FIG. 6 is a topological circuit diagram of one embodiment of a bus capacitor plate of a two-level driver based on a real-time simulation controller of the present invention;
FIG. 7 is a schematic block diagram of one embodiment of the drive system of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides a two-level driving apparatus 100 based on a real-time simulation controller, including:
the processing device comprises a processing board 1, wherein a conditioning circuit 10 is arranged on the processing board 1, and the conditioning circuit 10 is used for conditioning an input pulse width modulation signal (PWM);
the driving board 2 is connected with the processing board 1, a driving module 20 and a power module 21 are arranged on the driving board 2, the driving module 20 is used for boosting the pulse width modulation signals after conditioning, and the power module 21 is used for inverting the pulse width modulation signals after boosting and generating variable current signals and/or variable voltage signals;
wherein, the maximum driving current of the driving module 20 is 2.5A;
the maximum switching frequency of the power module 21 is 20 KHZ.
The pulse width modulation signal input into the two-level driving device based on the real-time simulation controller is processed by the conditioning circuit of the processing board, sent to the driving module on the driving board to be boosted to a preset voltage value, then sent to the power module to be inverted, and processed by the power module to generate a variable current-voltage signal, so that the variable current-voltage signal is used for controlling equipment to be driven. In addition, in the embodiment, the maximum driving current of the driving module is 2.5A, and the maximum switching frequency of the power module is 20 KHZ. Therefore, the two-level driving device based on the real-time simulation controller has a simple structure, higher switching frequency and higher driving current, enables a user to carry out secondary development based on the real-time simulation controller, and can solve the problem that the existing driver cannot meet the technical requirements.
In some implementations, the driver module 20 of the embodiment of the invention includes a driver chip 201, and the model of the driver chip 201 is ACPL-332J. The driving chip, namely the driving optocoupler, is ACPL-332J in the embodiment, and the chip has the following advantages: supporting pulse signals above 1000 KHZ; excellent common mode transient suppression (CMTI) up to 100 kV/. mu.s, which avoids false gate driver failures in noisy environments; rail-to-rail output currents of up to 5A are supported, thus eliminating the need for output buffer circuitry; the integrated fault safety IGBT and MOSFET diagnosis, protection and fault reporting functions are provided; providing minimal propagation delay and excellent timing skew. The high peak output current and wide operating voltage range of the chip eliminates the need for output buffer circuits, enabling designers to implement cost-effective gate driver solutions for motor drivers and power inverters.
In some implementations, referring to fig. 2, the driving module 20 of the embodiment of the present invention further includes a push-pull circuit 202 connected to the driving chip 201, where the push-pull circuit 202 is configured to perform a push-pull boosting process on the pulse width modulation signal received by the driving chip 201. The driving circuit in the embodiment uses a push-pull circuit, which has the advantages that: in a general push-pull circuit, such as an output stage, the circuit operates to amplify an input signal; the circuit operation is completed, but generally, the push-pull circuit uses the same-order elements (transistors or electronic tubes) to realize the alternate conduction of the output stage elements, two signals with equal magnitude and opposite phases must be excited, namely, the problem of phase inversion is solved, the circuit for phase inversion can be completed, and an inductance element (transformer) can be used without increasing the complexity and the reliability of the circuit. The complementary circuit overcomes the above-described problems with unipolar elements. When the circuit works, the bipolar elements are conducted in turn, so that an inverter can be omitted or the circuit can be simplified, and the stability of the circuit can be correspondingly improved. For example, when the input signal is positive, the PNP transistor in the bipolar transistor is turned on, and the PNP transistor is turned off due to the polarity thereof, and when the input signal is negative, the PNP transistor is turned on, and the NPN transistor is turned off. The circuit can be automatically switched on and off to complete the circuit operation regardless of the change of the signal. The push-pull circuit has simple structure and high utilization rate of the magnetic core of the switch transformer, and when the push-pull circuit works, only one of the two symmetrical power switch tubes is conducted at a time, so that the conduction loss is small.
In some implementations, referring to fig. 2, the driving board 2 of the embodiment of the present invention further includes a driving power source 22, and the type of the driving power source 22 is: QA 151M. The QA151M is used as the driving power supply in the embodiment, and the power supply has the advantages that: the power conversion efficiency is high and reaches 83%; the isolation voltage is 6000VDC, the ultra-small isolation capacitor is 3.5pF, and the short-circuit protection can be continued; the power module is internally connected with a common mode after two paths of independent outputs are adopted, energy can be better provided for the on and off of the power module, and meanwhile, the power module has output short circuit protection and self-recovery capability.
In some embodiments, the driving module of embodiments of the present invention includes a two-way push-pull circuit. In the embodiment, the power module drive adopts two paths of double-path push-pull circuits for current expansion, and can realize the drive capability of up to 4A with smaller temperature rise by matching with an excellent heat dissipation design.
In some implementations, the power module 21 of embodiments of the present invention is an English-flying PIM module. In the embodiment, the power module IGBT is completely of the first worldwide Infineon brand, the maximum bearing voltage is 1200V, the current is selected according to the power grade, and the switching frequency of the IGBT is as high as 20 KHZ.
The two-level driving device based on the real-time simulation controller can be used for driving a three-phase four-bridge arm driving board, and mainly realizes an AC-DC-AC inversion function, temperature sampling, 4-path output current sampling, 3-path output voltage sampling, 1-path bus current sampling and 8-path PWM push-pull boosting to 15V output; the control of a three-phase motor and a three-phase four-bridge arm power grid can be realized; the driving chip ACPL-332J which is newly introduced by AVAGO company of high Anghua is used, the driving chip has high performance, the driving current reaches 2.5A, and the driving chip has the characteristics of power supply under-voltage and short-circuit protection functions and the like, and the driving power supply QA151M of Jinshengyang company simultaneously uses a push-pull circuit to enable a power module to have higher switching frequency, so that the output current of the two-level driving device is controlled to be more vivid sine wave waveforms, and the motor control effect is better.
In some implementations, the main circuit structure on the dc side of the driving board 2 according to the embodiment of the present invention is an ac-dc-ac structure or a dc-ac structure, and the topology structure adopted on the inverter side of the driving board is any one of a single-phase half bridge, a single-phase full bridge, a two-level three-phase half bridge, a two-level three-phase full bridge, a five-level three-phase half bridge, a five-level three-phase full bridge, a three-phase three-leg bridge, and a three-phase four-leg bridge. The two-level driving device based on the real-time simulation controller of the embodiment can support various topologies.
In some implementations, referring to fig. 2, a sampling module 23 is further disposed on the driving board 2 according to an embodiment of the present invention, where the sampling module 23 includes 3 load voltage samples, 4 load current samples, 3 network access voltage samples, 4 network access current samples, multiple encoder samples, 3 digital input samples, and 3 digital output samples. The two-level driving device of the embodiment has more and richer sampling signal paths.
The driving board of the embodiment of the invention is also provided with a signal level conversion module, a weak current signal isolation module,
The device comprises a buffer relay module, a rectifying module, a bus capacitor filtering module, a bus voltage-sharing module, a braking module, a multi-path power supply module, an active Miller clamping module, a power module short-circuit protection module and the like.
To sum up, the driving board of the embodiment of the present invention mainly includes:
1. converting the weak-current digital signal into an analog signal, conditioning and amplifying the analog signal, and transmitting the analog signal to a controlled object;
2. the power frequency alternating current power supply or the direct current power supply is inverted into alternating current power supplies with various frequencies and is supplied to a controlled object, so that the power conversion function of the power supply is realized, and the functions of regulating voltage, frequency, current, speed and the like are further realized;
3. the power device generally adopts a driving circuit which is designed by taking intelligent power modules IPM, PIM, IGBT and silicon carbide SIC as cores, but the IPM is internally integrated with the driving circuit and is also provided with fault detection protection circuits such as overvoltage, overcurrent, overheat and undervoltage, and a soft start circuit or a buffer circuit is also designed in a main loop to reduce the impact of the starting process on a driver so as to prevent the instantaneous current from being overlarge and the bus capacitor from forming short circuit to cause explosion; the power driving unit firstly rectifies input three-phase power or commercial power through a three-phase full-bridge uncontrolled rectifying circuit to obtain corresponding direct current, and then controls a controlled object through a three-phase sine PWM voltage type inverter, wherein the whole process of the power driving unit can be simply referred to as an AC-DC-AC process; the main topological circuit of the rectifying unit (AC-DC) is a three-phase full-bridge uncontrolled rectifying circuit;
4. the main circuit on the direct current side of the driving plate adopts an alternating current-direct current-alternating current structure AC-DC-AC and a direct current-alternating current structure DC-AC; the inverter side of the driving plate can adopt a three-phase half bridge, which is shown in figure 3;
5. multiple input voltage levels are supported: the method comprises the following steps of inputting 220V/three-phase 380V alternating current and inputting 0-600V direct current;
6. the supported power level: rated output power (current): 2KW, 15KW, 30KW, 55KW, and the like;
7. a variety of topologies are supported: single-phase full bridge, two-level three-phase half bridge three-bridge arm and four-bridge arm, two-level three-phase full bridge and other topological structures;
8. the IGBT of the power module adopts a global first brand Yingfei PIM module, the maximum bearing voltage is 1200V, the current is selected and matched according to the power grade, and the switching frequency is as high as 20 KHZ;
9. the bus voltage supports a rated direct current voltage DC600V, and the maximum voltage is 720V (overvoltage threshold);
10. the overload capacity currently supports 3 times of overload (overload time is 1 second) at most;
11. voltage sampling module (4 paths total): the sampling (optional) of phase voltage and line voltage is supported, the bus voltage is 1 path, and the output voltage of the driving plate is 3 paths; the precision is 0.5%, the response time is less than 40us, and the frequency is 200 Hz;
12. current sampling module (total 5 paths): 1 bus current path, 4 driving board output currents; the precision is 0.5%, the response time is less than 1us, and the frequency is 100 KHz;
13. and (4) protection function: bus overvoltage, driver output current overcurrent, over-temperature protection, braking function and the like;
14. the driving chip of the power module adopts AVAGO brand, and has the characteristics of high performance, driving current reaching 2.5A, power supply under-voltage and short-circuit protection functions and the like;
15. the DCDC power supply module adopts a MORNSUN brand, and has the characteristics of small ripple, low noise, low heat emission and the like of an output power supply;
16. the Hall voltage/current sensor adopts ZX brand, and can accurately measure direct current, alternating current, pulse and various voltage/current with irregular waveform under the condition of electrical isolation;
17. the protection circuit is formed by DQ triggers newly promoted by TI brand, and has the characteristics of sensitive response, low power consumption and the like.
18. Various motor controls are supported: alternating current asynchronous/synchronous motors, permanent magnet synchronous motors, alternating current servo motors, direct current brushless/brushed motors, alternating current/direct current linear motors, custom motors, and the like; the method is widely applied to the fields of new energy automobiles, motor support aligning systems, servo industrial control and the like;
19. and grid connection control is supported: the single-phase grid-connected inversion function and the three-phase grid-connected inversion function are realized; the method is widely applied to the fields of wind power, photovoltaics, energy storage systems, UPS systems, active filtering, harmonic suppression, reactive compensation, three-phase imbalance and the like.
20. The circuit board is designed by adopting 6 layers, and has the characteristics of strong anti-interference capability, high signal reliability, strong EMC electromagnetic compatibility function and the like.
The processing board in the embodiment of the invention has the main functions of conditioning the acquired signals such as current, voltage and an encoder, processing fault protection and fault reset in time, indirectly controlling digital input and output signals and the like.
The processing board comprises a plurality of modules, specifically:
1. conditioning circuitry, i.e. sampling signal conditioning modules (voltage, current, temperature, etc.):
the Hall voltage/current sensor adopts ZX brand, and can accurately measure direct current, alternating current, pulse and various voltage/current with irregular waveform under the condition of electrical isolation;
voltage sampling module (total 10 paths): the bus voltage is 1 path, the driver outputs 3 paths of voltage, the network access voltage is 3 paths, and the load voltage is 3 paths; the precision is 0.5%, the response time is less than 40us, and the frequency is 200 Hz;
current sampling module (13 paths in total): 1 bus current, 4 driver output currents, 4 network access currents and 4 load currents; the precision is 0.5%, the response time is less than 1us, and the frequency is 100 KHz;
2. digital input module DI: 3-path high-speed isolation input (bidirectional) with maximum frequency of 50 KHZ;
3. digital output module DO: 3 paths of high-speed isolated output, the maximum frequency of 50KHZ, the current of 3A/AC250V and the current of 1A/DC 30V;
4. multi-channel power supply module (3.3V, 5V, +15V, -15V, 24V):
the precision and the linear voltage stabilization degree are 1 percent; the MORSUN brand is adopted, and the power supply has the characteristics of small ripple, small noise, low heat emission and the like of an output power supply;
5. encoder acquisition module and signal conditioning module:
multiple encoder types are supported: single-ended/differential incremental (5V/24V), absolute, rotary, hall, grating scale encoders, etc.; support encoder digital/analog signal output, support high resolution/precision encoders (such as 2500 lines/3600 lines/5000 lines, etc.);
6. protection module (overvoltage, overcurrent, overtemperature, etc.):
the protection circuit formed by the LM293 comparator and a DQ trigger newly promoted by a TI brand has the characteristics of sensitive response, low power consumption and the like, and has the functions of bus overvoltage, driver output current overcurrent, over-temperature protection, braking and the like;
7. a fault reset module:
the reset circuit adopts a protection circuit formed by DQ triggers newly promoted by TI brand, has the characteristics of sensitive response, low power consumption and the like,
8. 4 pairs of complementary PWM signal outputs are supported.
9. The circuit board is designed by adopting 6 layers, and has the characteristics of strong anti-interference capability, high signal reliability, strong EMC electromagnetic compatibility function and the like.
In some implementations, referring to fig. 4, the two-level driving apparatus 100 according to the embodiment of the present invention further includes an electromagnetic compatibility board 3, and the electromagnetic compatibility board 3 is connected to the driving board 2 and the processing board 1, respectively.
The EMC main functions of the electromagnetic compatibility board in this embodiment are:
1. the method is mainly used for reducing and inhibiting the electromagnetic interference generated by the driver and meeting the European standard EN61000 level standard;
2. the EMC electromagnetic compatibility board topological structure can be used as a single L filter and a one-stage LC and two-stage LC filter, and is shown in figure 5;
3. technical parameters of the EMC electromagnetic compatibility board:
1) rated input voltage: three-phase AC 0-380V;
2) rated output voltage: three-phase AC 0-380V;
3) rated output power (current): 15KW (25A);
4) device configuration: the device comprises an X safety capacitor, a Y safety capacitor, a piezoresistor, a discharge tube and a common mode inductor;
5) inductance L parameter: 20 mH;
6) the working frequency is as follows: 50/60 Hz;
7) temperature range: -25 ℃ to +85 ℃;
8) temperature rise: < 30 ℃;
9) and (3) withstand voltage test: 1 minute;
10) line-to-line SURGE voltage: 2 KV;
11) line-ground SURGE voltage: 2 KV;
12) line-to-line burst EFT voltage: 4 KV;
13) line-to-line burst EFT voltage: 4 KV;
14) the circuit board is designed by adopting 6 layers, and has the characteristics of strong anti-interference capability, high signal reliability, strong EMC electromagnetic compatibility function and the like.
In some implementations, referring to fig. 4, the two-level driving apparatus 100 based on a real-time simulation controller according to an embodiment of the present invention further includes an adapter board 4, and the processing board 1 is connected to the real-time simulation controller through the adapter board 4.
In some implementations, referring to fig. 4, the two-level driving apparatus 100 based on a real-time simulation controller according to an embodiment of the present invention further includes a bus capacitor board 5, and the bus capacitor board 5 is connected to the processing board 1 and the driving board 2, respectively.
The main functions of the bus capacitor board in this embodiment are:
1. in an open-source driver, an alternating current power supply or a direct current power supply is used as an input power supply and is connected to an inversion side of the driver through a direct current bus, and because an inversion bridge obtains an effective value or a high-peak pulse current from a bus capacitor, a high-pulse voltage peak is generated on a bus branch, so that the inversion bridge is difficult to bear the high-peak voltage peak, and a bus capacitor plate is required to be selected for smoothing and filtering and then output to the inversion bridge;
2. when the IGBT switch of the power tube is switched on, the bus voltage can be smooth, so that the bus voltage of the driver is kept stable;
3. inductance parameters of the IGBT of the power tube are reduced to the minimum as possible, and the peak voltage of a bus is weakened;
4. absorbing high pulse current on a bus capacitor of the driver;
5. the influence of the inverter bridge overcharge voltage and the instantaneous voltage on the driver is prevented;
6. a voltage equalizing circuit is added to prevent the driver from exploding due to the unbalanced voltage at the upper end and the lower end of a bus capacitor when the driver fails;
7. the bus voltage initial charging circuit is designed, a current-limiting resistor is connected in series in a charging loop before bus voltage is stabilized and built up, and the current-limiting resistor is removed after the voltage is stabilized, so that the phenomenon that electrolytic capacitance on a direct current bus is large, the capacitor voltage cannot suddenly change, the capacitor current can suddenly change, R =0, the charging time t =0, the charging current is large, and the short circuit, the burning of a rectifier bridge and a power supply are equivalent to be avoided.
8. Technical parameters of the bus capacitor plate:
a. rated input voltage: DC600V, max 720V;
b. rated input current: 60A;
c. the capacitance parameter is as follows: a single capacitor 450V, 1500 UF; sampling in a serial-parallel connection mode for capacity expansion, and supporting at most four groups;
d. configuring a safety capacitor: y capacitance (capacitance value 4700 pF); a thin film capacitor;
e. temperature range: -25 to 85;
f. temperature rise: less than 30;
g. parameters of voltage-sharing resistance: 2KV high-voltage resistor with resistance value of 150K, and performing resistance value expansion in a sampling series-parallel connection mode;
h. the circuit board is designed by adopting 6 layers, and has the characteristics of strong anti-interference capability, high signal reliability, strong EMC electromagnetic compatibility function and the like.
On the other hand, referring to fig. 7, an embodiment of the present invention further provides a driving system, which includes the two-level driving apparatus 100 based on the real-time simulation controller and a device to be driven 200 connected to the two-level driving apparatus 100 based on the real-time simulation controller.
Referring to fig. 7, the driving system in this embodiment further includes a controller 300, wherein the controller 300 may be a real-time simulation controller.
The driving system in this embodiment is applied to various motor control occasions and power grid control, for example:
1. steel: rolling mill, roller way, fan, pump, crane, buggy ladle, converter tilting, etc.;
2. steel rolling and line making: wire drawing machine, winding machine, blower, pump, hoisting machine, fixed length shearing, automatic feeding, etc.;
3. electric power: a blower for a boiler drum, a feed pump, a centrifugal mixer, a conveyor belt, a water raising power station, a flywheel and the like;
4. petroleum: oil transfer pump, electric submersible pump, water injection pump, oil pumping unit, etc. 5. Paper making industry: paper machines, pumps, mills, fans, blenders, blowers, and the like.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A two-level driving apparatus based on a real-time simulation controller, comprising:
the processing board is provided with a conditioning circuit, and the conditioning circuit is used for conditioning an input pulse width modulation signal;
the driving board is connected with the processing board, a driving module and a power module are arranged on the driving board, the driving module is used for boosting the pulse width modulation signal after conditioning, and the power module is used for inverting the pulse width modulation signal after boosting and generating a variable current signal and/or a variable voltage signal;
wherein the maximum driving current of the driving module is 2.5A;
the maximum switching frequency of the power module is 20 KHZ.
2. The two-level driving apparatus based on real-time simulation controller of claim 1, wherein the driving module comprises a driving chip, and the model of the driving chip is ACPL-332J.
3. The two-level driving apparatus based on real-time simulation controller as claimed in claim 2, wherein the driving module further comprises a push-pull circuit connected to the driving chip, and the push-pull circuit is configured to perform a push-pull boost process on the pulse width modulation signal received by the driving chip.
4. The two-level driving apparatus based on real-time simulation controller of claim 3, wherein the driving module comprises a two-way push-pull circuit.
5. The two-level driving apparatus based on the real-time simulation controller according to claim 1, wherein the main circuit structure of the dc side of the driving board is an ac-dc-ac structure or a dc-ac structure, and the topology structure adopted by the inverter side of the driving board is any one of a single-phase half-bridge, a single-phase full-bridge, a two-level three-phase half-bridge, a two-level three-phase full-bridge, a five-level three-phase half-bridge, a five-level three-phase full-bridge, a three-phase three-leg and a three-phase four-leg.
6. The real-time simulation controller based two-level driver of claim 1, wherein the power module is an English-flying PIM module.
7. The two-level driving device based on the real-time simulation controller according to any one of claims 1 to 6, wherein a sampling module is further provided on the driving board, and the sampling module comprises 4 voltage samples and 5 current samples.
8. The real-time simulation controller based two-level driving apparatus according to any one of claims 1 to 6, further comprising an electromagnetic compatibility board, wherein the electromagnetic compatibility board is connected to the driving board and the processing board respectively.
9. The real-time simulation controller based two-level driving apparatus according to any one of claims 1 to 6, further comprising an adapter board, wherein the processing board is connected with the real-time simulation controller through the adapter board.
10. A driving system comprising a two-level driving apparatus based on a real-time simulation controller according to any one of claims 1 to 9 and a device to be driven connected to the two-level driving apparatus based on a real-time simulation controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010936889.XA CN114157167A (en) | 2020-09-08 | 2020-09-08 | Two-level driving device based on real-time simulation controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010936889.XA CN114157167A (en) | 2020-09-08 | 2020-09-08 | Two-level driving device based on real-time simulation controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114157167A true CN114157167A (en) | 2022-03-08 |
Family
ID=80462134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010936889.XA Pending CN114157167A (en) | 2020-09-08 | 2020-09-08 | Two-level driving device based on real-time simulation controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114157167A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118100380A (en) * | 2024-04-29 | 2024-05-28 | 华羿微电子股份有限公司 | BMS active clamp protection circuit and chip |
-
2020
- 2020-09-08 CN CN202010936889.XA patent/CN114157167A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118100380A (en) * | 2024-04-29 | 2024-05-28 | 华羿微电子股份有限公司 | BMS active clamp protection circuit and chip |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1766491B1 (en) | Output power factor control of pulse-width modulated inverter | |
| US9007796B2 (en) | Power conversion with current sensing coupled through saturating element | |
| EP3657661A1 (en) | Conversion circuit, control method, and power supply device | |
| EP2555405B1 (en) | Converter, motor driving module, and refrigerating apparatus | |
| CN103560680A (en) | Double fed induction generator (dfig) converter and method for improved grid fault ridethrough | |
| EP2579416A1 (en) | Converting device of electrical energy | |
| CN203840210U (en) | AC inverter circuit | |
| CN101106338A (en) | Bidirectional power flow efficient energy saving converter | |
| CN105703689B (en) | The two-way frequency conversion speed-adjusting system of high-power brushless double-fed three level of machine | |
| CN110920422B (en) | High-power electric vehicle charging device based on current source and control method | |
| CN106849702A (en) | A kind of Novel rotary rectifier with malfunction monitoring function | |
| US9088150B2 (en) | Overvoltage clipping device for a wind turbine and method | |
| JP2006121890A (en) | Dc power supply and compressor drive device | |
| CN112234839A (en) | Hybrid distribution transformer and power-on soft start method thereof | |
| CN105305483A (en) | Inverter grid connected type power source impedance measurement model optimization method under the condition of external disturbance signals | |
| Sharma et al. | Comparative analysis of VSI, CSI and ZSI fed induction motor drive system | |
| CN114157167A (en) | Two-level driving device based on real-time simulation controller | |
| CN201774451U (en) | Direct-current unloading circuit of double-fed wind power converter | |
| KR101514803B1 (en) | Single-Phase Voltage Source SPWM inverter System used Renewable energy in Grid-Connected Distributed Power System | |
| CN212649375U (en) | Silicon carbide driving device and driving system thereof | |
| CN212486397U (en) | Two-level driving device based on real-time simulation controller | |
| CN110794327A (en) | Grounding point judgment method for rectifier and inverter of HXD2 electric locomotive | |
| Rajendran et al. | Open Switch Fault-Tolerant VOC-PI Controller based Vienna Rectifier for EV Charging Stations | |
| CN201530653U (en) | Elevator electrical energy feedback device | |
| CN105024396A (en) | Energy feedback frequency converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |