CN105119517A - High-voltage pulse power supply for synchronous discharge of multiple spark plasma synthetic jet actuators - Google Patents
High-voltage pulse power supply for synchronous discharge of multiple spark plasma synthetic jet actuators Download PDFInfo
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Abstract
The invention discloses a high-voltage pulse power supply for the synchronous discharge of multiple spark plasma synthetic jet actuators, and the power supply comprises a main circuit module which is used for generating multiple synchronous negative high-voltage pulses; a control circuit module which is used for generating an IGBT switch drive signal; a power supply module which is used for supplying power to a main circuit module and a control circuit module; and a protection circuit module, wherein a thyristor switch in the protection circuit module is connected with an IGBT switch in the control circuit module. The power supply module is connected with the main circuit module and the control circuit module. The protection circuit module is connected with the main circuit module and the control circuit module. The control circuit module is connected with the main circuit module. The beneficial effects of the invention are that the structure is simple and compact; the plasma synthetic jet speed is high and the work efficiency is high; the power supply can output multiple 10kV negative high-voltage pulses synchronously to achieve the synchronous excitation of a plurality of spark plasma synthetic jet actuators, achieves the synchronous discharge of the plurality of spark plasma synthetic jet actuators, and enables the discharge current of a single spark plasma synthetic jet actuator to be greater than 100A.
Description
Technical Field
The invention relates to the technical field of high-voltage pulse power supplies, in particular to a negative-polarity high-voltage pulse power supply for synchronous discharge application of a plurality of plasma synthetic jet actuators.
Background
The flow control can be divided into two categories of passive control and active control, the active control is realized by directly injecting proper disturbance mode and energy into a flow field to enable the disturbance mode and the energy to have certain interaction with the flow in a system, and the control effect can be adjusted in a self-adaptive manner according to the actual working condition. The synthetic jet flow is used as a brand new active flow control technology, does not need an air source supply system, has the characteristics of simple structure, quick response, wide working frequency band, zero mass flow rate and the like, and has wide application in the field of flow control. With the rapid development of the plasma technology, the plasma synthetic jet technology has great advantages in high-speed flow field control.
At present, the power sources for generating plasma synthetic jet mainly include the following power sources:
the French space navigation bureau develops two pulse transformer type inductive energy storage type and capacitive energy storage type power supplies, and the two power supplies are applied to a plasma synthetic jet experiment, and the experiment shows that: at a spacing of 1.2mm, the discharge voltage is approximately 4.7kV, the discharge current of the inductive energy storage type power supply is approximately 30A, and the discharge current of the capacitive energy storage type power supply is approximately 250A (Belinger A, HardyP, BarricauP, et al. Influenceoftheenergydispatitionassociated with the synthesis of electromagnetic reactor [ J ]. journal of Physics D: applied Physics,2011,44(36): 365201.). The designed power supply is connected with a current limiting resistor in series on the high-voltage side, so that the repetition frequency of the power supply is low, and the energy conversion efficiency is low.
The university of texas developed a set of excitation sources for plasma synthetic jet applications, including high voltage dc power supplies, storage capacitors, current limiting resistors, MOSFET switches, and the like. At 5mm intervals, the discharge point voltage was about 2.2kV, and the discharge current was about 3A (NarayanasswamyV, RajaLL, ClemenNT. Characterisationofahigh-frequency-modulated-plasmajetatorfor super sonic flow control [ J ]. AIAAjournal,2010,48(2): 297-305). The device has the advantages of relatively scattered structure, low power and low speed of the generated plasma synthetic jet.
The university of defense science and technology utilizes a direct current source and a pulse source to research the characteristics of the three-electrode plasma synthetic jet, and experiments show that the breakdown voltage of the plasma synthetic jet actuator can be obviously reduced by utilizing the cooperation of the two power sources (Wangl, Xiaoaz, LuoZ, et, three-electric plasma synthetic jet actuator for high-speed FlowControl [ J ]. AIAAjournal,2013,52(4): 879-. However, the use of two power supplies in combination increases the complexity of the device, which is not practical.
The pneumatic characteristic of the plasma synthetic jet is researched by utilizing a magnetic compression type nanosecond pulse power supply at the university of air force engineering, the output voltage of the pulse source is 50kV at most, the frequency is 5kHz at most, the rising edge is 20ns-30ns, the full width at half maximum is 50ns, the discharge voltage in the experiment is about 4.7kV, the discharge current is 20A (Jamin, Libra, Songhui, and the like, the pneumatic excitation characteristic of the nanosecond pulse plasma synthetic jet [ J ] high voltage technology, 2011,37(6): 1493-. The discharge current of the power supply is small, and the heating of the cavity of the plasma synthetic jet exciter is not facilitated.
The patent (application number 2015100580904) discloses a device and a method for synchronously discharging a plurality of plasma synthetic jet actuators, wherein the device comprises a plurality of high-voltage modules, and the plurality of plasma synthetic jet actuators are synchronously excited by a switch synchronous triggering technology to synchronously discharge the plurality of actuators.
In summary, the characteristics of a single plasma synthetic jet actuator are mostly studied at home and abroad, and the used power supply device has many defects. The plasma synthetic jet flow exciters can not discharge synchronously, the device has the advantages of complex structure, incompact structure, small discharge current, low plasma synthetic jet flow speed and low working efficiency.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a high voltage pulse power supply for synchronously discharging a plurality of plasma synthetic jet actuators, which can synchronously output a plurality of 10kV negative polarity high voltage pulses to synchronously excite the plurality of plasma synthetic jet actuators, and can synchronously discharge the plurality of plasma synthetic jet actuators, and the discharge current of a single plasma synthetic jet actuator exceeds 100A.
The invention provides a high-voltage pulse power supply for synchronous discharge of a plurality of plasma synthetic jet actuators, which comprises:
the main circuit module is respectively connected with the control circuit module, the power supply module and the protection circuit module and is used for generating a plurality of paths of synchronous negative-polarity high-voltage pulses;
the control circuit module is respectively connected with the main circuit module, the power supply module and the protection circuit module and is used for generating an IGBT switch driving signal;
the power supply module is respectively connected with the main circuit module and the control circuit module and supplies power to the main circuit module and the control circuit module;
and the protection circuit module is respectively connected with the main circuit module and the control circuit module and protects a thyristor switch in the main circuit module and an IGBT switch in the control circuit module.
As a further improvement of the invention, the main circuit module comprises a voltage regulating circuit, a booster circuit, a rectifying circuit, a charging circuit, a switching circuit and a load;
one end of the voltage regulating circuit is connected with one end of the boosting circuit, the other end of the boosting circuit is connected with one end of the rectifying circuit, the other end of the rectifying circuit is connected with one end of the charging circuit, the other end of the charging circuit is connected with one end of the switch circuit, and the other end of the switch circuit is connected with the load.
As a further improvement of the present invention,
the voltage regulating circuit is a first alternating current voltage regulator and is used for regulating the voltage of 220V alternating current commercial power to realize voltage regulation;
the boosting circuit is a boosting transformer and boosts the output voltage of the first alternating-current voltage regulator;
the rectifying circuit consists of four high-voltage rectifying diodes, a first current-limiting resistor and a first energy-storing capacitor, the first rectifying diode, a second rectifying diode, a third rectifying diode and a fourth rectifying diode form a rectifying bridge, the input end of the rectifying bridge is connected with the output end of the boosting transformer, the output end of the boosting transformer is connected with the two ends of the first energy-storing capacitor through the first current-limiting resistor, the alternating-current voltage output by the boosting transformer is rectified, the first energy-storing capacitor is charged through the first current-limiting resistor, and the alternating-current voltage is converted into direct-current voltage;
the charging circuit consists of a current-limiting inductor, an isolation diode, a plurality of discharging capacitors and a plurality of freewheeling diodes, one end of the first energy-storing capacitor is connected with one end of the current-limiting inductor, the isolation diode, the discharging capacitors and the freewheeling diodes are connected in series, one end of each freewheeling diode is connected with the other end of the energy-storing capacitor and connected with the ground in parallel, and a branch formed by connecting the discharging capacitors and the freewheeling diodes in series is connected in parallel;
the switch circuit consists of a static voltage-sharing circuit consisting of an inductor, eleven thyristor switches, eleven freewheeling diodes and eleven groups of static voltage-sharing resistors and a dynamic voltage-sharing circuit consisting of eleven groups of dynamic voltage-sharing resistors and eleven groups of dynamic voltage-sharing capacitors which are connected in series; in the single-group thyristor system circuit, a single-group thyristor driving circuit is connected with a single-group static voltage-sharing circuit and a single-group dynamic voltage-sharing circuit in parallel; the eleven groups of thyristor system circuits are connected in series to form a thyristor series high-voltage switch, one end of the high-voltage switch is connected with one end of the inductor, the other end of the inductor is connected with the cathode of the isolating diode, and the other end of the high-voltage switch is connected with one end of the first energy storage capacitor to control the working states of the plurality of discharging capacitors;
the load consists of a plurality of plasma synthetic jet actuators and a plurality of current limiting diodes, wherein each single plasma synthetic jet actuator consists of a cavity, a hole cover and two tungsten needle electrodes which penetrate through the cavity and have adjustable intervals, one end of each single plasma synthetic jet actuator is connected with the anode of each current limiting diode, the cathode of each current limiting diode is connected with one end of each discharge capacitor, the other end of each plasma synthetic jet actuator is connected with the grounding end of the first energy storage capacitor, and the connection modes of the plurality of discharge capacitors, the plurality of freewheeling diodes, the plurality of current limiting diodes and the plurality of plasma synthetic jet actuators are consistent with the connection modes.
As a further improvement of the present invention, the switch protection circuit of the main circuit module is an RC circuit in which an absorption resistor and an absorption capacitor are connected in series, and the RC circuit is connected in parallel with the high-voltage thyristor switch to absorb a voltage spike generated when the high-voltage thyristor switch is turned on and off.
As a further improvement of the present invention, the control circuit module includes a pulse generator module and a switch driving circuit, one end of the pulse generator module is connected to one end of the switch driving circuit, the other end of the switch driving circuit is connected to one end of the switch circuit in the main circuit module, and the pulse generator module in the control circuit module generates a control signal to control the on and off of the thyristor switch in the switch circuit of the main circuit module through the switch driving circuit.
As a further improvement of the present invention,
the pulse generator module consists of a pulse generator and an electric-optical conversion plate, and the output end of the pulse generator is connected with the electric-optical conversion plate; the pulse generator comprises a keyboard, a display screen and an ARM chip, wherein the output end of the ARM chip is connected with the keyboard and the display screen, and the pulse generator provides optical signals with adjustable pulse width, frequency and pulse number through keyboard input, ARM chip processing, power amplification, electric-optical conversion and display screen display; the electro-optic conversion board converts the electric signal into an optical signal, separates the high-voltage output circuit from the control circuit, prevents the interference of an electromagnetic signal to the control circuit, and avoids the false triggering of a high-voltage switch;
the switch driving circuit consists of a rectifying module, a second energy storage capacitor, an IGBT switch driving module, a light-electricity conversion board, eleven isolated pulse transformers, eleven voltage-dividing resistors, eleven current-limiting resistors, eleven fly-wheel diodes and eleven current-limiting diodes, wherein the rectifying module consists of four rectifying diodes; the alternating current commercial power is connected with the input end of the rectifying module, and the output end of the rectifying module is connected with the input end of the second energy storage capacitor to generate stable direct current voltage; the trigger electrode of the IGBT switch is connected with the output end of the IGBT drive module, the input end of the IGBT switch drive module is connected with the output end of the photoelectric conversion plate, and the photoelectric conversion plate is connected with the photoelectric conversion plate to control the on and off of the IGBT switch; one end of the IGBT switch is connected with the primary side of the eleven-path isolation pulse transformer, the secondary side of the single isolation pulse transformer is connected with one end of a single divider resistor, the other end of the single divider resistor is connected with the cathode of the trigger electrode of the single thyristor switch, the other end of the single current limiting resistor is connected with the anode of the single current limiting diode, the cathode of the single current limiting diode is connected with the anode of the trigger electrode of the single thyristor, the single divider resistor is connected with the single fly-wheel diode in parallel, one end of the single divider resistor is connected with the anode of the single current limiting diode, the other end of the single divider resistor is connected with the cathode of the trigger electrode of the single thyristor switch, the connection mode of the secondary side of the eleven-path isolation pulse transformer is consistent with the connection mode, and eleven-path synchronous.
As a further improvement of the present invention, the switch protection circuit of the control circuit module is an RCD circuit in which an absorption resistor is connected in parallel with a freewheeling diode and then connected in series with an absorption capacitor, and is connected in parallel with the IGBT switch to absorb a voltage spike generated when the IGBT switch is turned on and off.
As a further improvement of the present invention, the power supply module includes a power supply circuit, one end of the power supply circuit is respectively connected to one end of a voltage regulating circuit in the main circuit module, one end of a pulse generator module in the control circuit module, and one end of a switch driving circuit in the control circuit module, and the power supply circuit provides 220V ac voltage for the main circuit module, 220V ac voltage for the switch driving circuit of the control circuit module, and 5V dc voltage for the pulse generator module of the control circuit module.
As a further improvement of the present invention, the protection circuit module includes a switch protection circuit, the switch protection circuit is respectively connected to the switch circuit in the main circuit module and the switch driving circuit in the control circuit module, and the switch protection circuit provides protection for the thyristor switch of the switch circuit in the main circuit module and provides protection for the IGBT switch of the switch driving circuit in the control circuit module.
The invention has the beneficial effects that:
1. the structure is simple and compact;
2. the multi-channel 10kV negative-polarity high-voltage pulse can be synchronously output to synchronously excite a plurality of plasma synthetic jet actuators, so that the plurality of plasma synthetic jet actuators can synchronously discharge, and the discharge current of a single plasma synthetic jet actuator exceeds 100A.
3. The plasma synthesized jet flow has high speed and high working efficiency.
Drawings
FIG. 1 is a system diagram of a high voltage pulse power supply with synchronous discharge of multiple plasma synthetic jet actuators according to an embodiment of the present invention;
FIG. 2 is a circuit diagram of an embodiment of the main circuit module of FIG. 1;
fig. 3 is a circuit diagram of an embodiment of the control circuit module in fig. 1.
In the figure, the position of the upper end of the main shaft,
100. a main circuit module; 101. a voltage regulating circuit; 102. a boost circuit; 103. a rectifying circuit; 104. a charging circuit; 105. a switching circuit; 106. a load; 110. a control circuit module; 111. a switch drive circuit; 112. a pulse generator module; 120. a power supply module; 121. a power supply circuit; 130. a protection circuit module; 131. a switch protection circuit; 200. a first power frequency commercial power; 201. a first AC voltage regulator; 202. a step-up transformer; 203. a first rectifying diode; 204. a second rectifying diode; 205. a third rectifying diode; 206. a fourth rectifying diode; 207. a first current limiting resistor; 208. a first energy storage capacitor; 209. a current limiting inductor; 210. an isolation diode; 211. an inductance; 212. a first thyristor drive circuit; 213. a second thyristor drive circuit; 214. an eleventh thyristor drive circuit; 215. a first thyristor switch; 220. a second thyristor switch; 225. an eleventh thyristor switch; 216. a first freewheeling diode; 221. a second freewheeling diode; 226. an eleventh freewheeling diode; 217. a first static voltage-sharing resistor; 222. a second static voltage-sharing resistor; 227. an eleventh static voltage-sharing resistor; 218. a first dynamic voltage-sharing capacitor; 223. a second dynamic voltage-sharing capacitor; 228. an eleventh dynamic voltage-sharing capacitor; 219. a first dynamic voltage-sharing resistor; 224. a second dynamic voltage-sharing resistor; 229. an eleventh dynamic voltage grading resistor; 230. a first absorption capacitor; 231. a first absorption resistor; 232. a first discharge capacitor; 236. a second discharge capacitor; 240. a third discharge capacitor; 233. a first current limiting diode; 237. a second current limiting diode; 241. a third current limiting diode; 234. a first plasma synthetic jet actuator; 238. a second plasma synthetic jet actuator; 242. a third plasma synthetic jet actuator; 235. a twelfth freewheel diode; 239. a thirteenth freewheeling diode; 243. a fourteenth freewheeling diode; 244. the earth; 300. a second power frequency commercial power; 301. a second AC voltage regulator; 302. a fifth rectifying diode; 303. a sixth rectifying diode; 304. a seventh rectifying diode; 305. an eighth rectifying diode; 306. a second current limiting resistor; 307. a second energy storage capacitor; 308. a second absorption resistance; 309. a second absorption capacitance; 310. a fifteenth freewheeling diode; 311. an IGBT switch; 312. an IGBT switch driving module; 313. an optical-to-electrical conversion module; 314. an electro-optic conversion module; 315. a pulse generator; 316. eleven isolated pulse transformers; 317. a third current limiting resistor; 322. a fourth current limiting resistor; 327. a thirteenth current limiting resistor; 318. a first voltage dividing resistor; 323. a second voltage dividing resistor; 328. an eleventh voltage-dividing resistor; 320. a sixteenth freewheeling diode; 325. a seventeenth freewheeling diode; 330. a twenty-sixth freewheeling diode; 319. a fourth current limiting diode; 324. a fifth current limiting diode; 329. a fourteenth current limiting diode.
Detailed Description
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
As shown in fig. 1, a high-voltage pulse power supply for synchronous discharge of multiple plasma synthetic jet actuators according to an embodiment of the present invention includes a main circuit module 100, a control circuit module 110, a power supply module 120, and a protection circuit module 130. The power supply module 120 is connected to the main circuit module 100 and the control circuit module 110, the protection circuit module 130 is connected to the main circuit module 100 and the control circuit module 110, and the control circuit module 110 is connected to the main circuit module 100.
Wherein,
the main circuit module 100 includes a voltage regulating circuit 101, a voltage boosting circuit 102, a rectifying circuit 103, a charging circuit 104, a switching circuit 105, and a load 106, and is configured to generate multiple paths of synchronous negative-polarity high-voltage pulses. One end of the voltage regulating circuit 101 is connected to one end of the voltage boosting circuit 102, the other end of the voltage boosting circuit 102 is connected to one end of the rectifying circuit 103, the other end of the rectifying circuit 103 is connected to one end of the charging circuit 104, the other end of the charging circuit 104 is connected to one end of the switching circuit 105, and the other end of the switching circuit 105 is connected to the load 106.
The control circuit module 110 includes a pulse generator module 112 and a switch driving circuit 111 for generating an IGBT switch driving signal. One end of the pulse generator module 112 is connected to one end of the switch driving circuit 111, the other end of the switch driving circuit 111 is connected to one end of the switch circuit 105 in the main circuit module 100, and the pulse generator module 112 in the control circuit module 110 generates a control signal to control the on/off of the thyristor switch in the switch circuit 105 of the main circuit module 100 through the switch driving circuit 111.
The power supply module 120 includes a power supply circuit 121 for supplying power to the main circuit module 100 and the control circuit module 110. One end of the power supply circuit 121 is connected to one end of the voltage regulating circuit 101 in the main circuit module 100, one end of the pulse generator module 112 in the control circuit module 110, and one end of the switch driving circuit 111 in the control circuit module 110, respectively, and the power supply circuit 121 provides 220V ac voltage for the main circuit module 100, 220V ac voltage for the switch driving circuit 111 of the control circuit module 110, and 5V dc voltage for the pulse generator module 112 of the control circuit module 110.
The protection circuit module 130 includes a switch protection circuit 131 protecting switches in the main circuit module 100 and the control circuit module 110. The switch protection circuit 131 is respectively connected to the switch circuit 105 of the main circuit module 100 and the switch driving circuit 111 of the control circuit module 110, and the switch protection circuit 131 provides protection for the thyristor switch of the switch circuit 105 of the main circuit module 100 and provides protection for the IGBT switch of the switch driving circuit 111 of the control circuit module 110.
Fig. 2 is a circuit diagram of a main circuit module 100. The synchronous discharge of three plasma synthetic jet actuators is taken as an example for explanation. The 220V ac commercial power is changed into high voltage dc power after being regulated by the voltage regulating circuit 101, boosted by the voltage boosting circuit 102 and rectified by the rectifying circuit 103 in the main circuit module 100, and then changed into negative high voltage pulse to be applied to the load 106 through the charging circuit 104 and the switching circuit 105 in sequence.
The voltage regulating circuit 101 is composed of a first alternating current voltage regulator 201, and is used for regulating voltage of 220V alternating current commercial power to realize voltage regulation.
The booster circuit 102 is composed of a booster transformer 202, and boosts the output voltage of the first ac voltage regulator 201. The output end of the step-up transformer 202 is connected to both ends of the first energy storage capacitor 208 via the first current limiting resistor 207, and rectifies the ac voltage output from the step-up transformer 202, and charges the first energy storage capacitor 208 via the first current limiting resistor 207, thereby converting the ac voltage into a dc voltage.
The rectifying circuit 103 is composed of four high-voltage rectifying diodes 203, 204, 205, 206, a first current-limiting resistor 207 and a first energy-storage capacitor 208, and a rectifying bridge is formed by the first rectifying diode 203, the second rectifying diode 204, the third rectifying diode 205 and the fourth rectifying diode 206.
The charging circuit 104 is composed of a current-limiting inductor 209, an isolation diode 210, three discharging capacitors 232, 236 and 240 and three freewheeling diodes 235, 239 and 243. One end of the first energy storage capacitor 208 is connected with one end of the current limiting inductor 209, the isolating diode 210, the three discharging capacitors 232, 236, 240 and the three freewheeling diodes 235, 239 and 243 are connected in series, one ends of the three freewheeling diodes 235, 239 and 243 are connected with the other end of the first energy storage capacitor 208 and connected with the ground 244 in parallel, and branches formed by the three discharging capacitors 232, 236 and 240 and the three freewheeling diodes 235, 239 and 243 which are connected in series are connected in parallel.
The switch circuit 105 is composed of a static voltage-sharing circuit formed by an inductor 211, eleven thyristor switches, eleven freewheeling diodes and eleven groups of static voltage-sharing resistors, and a dynamic voltage-sharing circuit formed by eleven groups of dynamic voltage-sharing resistors and eleven groups of dynamic voltage-sharing capacitors connected in series. In the single-group thyristor system circuit, a single-group thyristor driving circuit is connected with a single-group static voltage-sharing circuit and a single-group dynamic voltage-sharing circuit in parallel. The eleven groups of thyristor system circuits are connected in series to form a thyristor series high-voltage switch, one end of the high-voltage switch is connected with one end of an inductor 211, the other end of the inductor 211 is connected with the cathode of an isolating diode 210, and the other end of the high-voltage switch is connected with one end of a first energy storage capacitor 208 to control the working states of the three discharging capacitors 232, 236 and 240.
The load 106 is composed of three plasma synthetic jet actuators 234, 238, 242, three current limiting diodes 233, 237, 241, the plasma synthetic jet actuator is composed of a cavity, a perforated cover and two tungsten needle electrodes with adjustable distance penetrating through the cavity. One end of a single plasma synthetic jet actuator is connected with the anode of a single current limiting diode, the cathode of the single current limiting diode is connected with one end of a single discharge capacitor, the other end of the plasma synthetic jet actuator is connected with the grounding end of a first energy storage capacitor, and the connection modes of a plurality of discharge capacitors, a plurality of freewheeling diodes, a plurality of current limiting diodes and a plurality of plasma synthetic jet actuators are consistent with the connection modes.
The specific connection is as follows: the first industrial frequency commercial power 200 is connected with the input end of a first alternating current voltage regulator 201, the output end of the first alternating current voltage regulator 201 is connected with the input end of a step-up transformer 202, the output end of the step-up transformer 202 is connected with the input end of a rectifier bridge, one end of the rectifier bridge is connected with one end of a first current limiting resistor 207, the other end of the rectifier bridge is connected with one end of a first energy storage capacitor 208, the other end of the first energy storage capacitor 208 is connected with the other end of the first current limiting resistor 207 and one end of a current limiting inductor 209, the other end of the current limiting inductor 209 is connected with the anode of an isolation diode 210, the cathode of the isolation diode 210 is connected with an inductor 211, one end of a first discharge capacitor 232, one end of a second discharge capacitor 236 and one end of a third discharge capacitor 240, the other end of the inductor 211 is connected with the anode of a first thyristor switch 215, the, One end of a first dynamic voltage-sharing capacitor 218 and one end of a first absorption capacitor 230 are connected, the other end of the first dynamic voltage-sharing capacitor 218 is connected with one end of a first dynamic voltage-sharing resistor 219, the other end of the first absorption capacitor 230 is connected with one end of a first absorption resistor 231, eleven thyristor switches are connected in series, eleven freewheeling diodes are connected in series, eleven static voltage-sharing resistors are connected in series, eleven dynamic voltage-sharing capacitors and eleven dynamic voltage-sharing resistors are connected in series, a cathode of an eleventh thyristor switch 225, an anode of an eleventh freewheeling diode 226, the other end of an eleventh static voltage-sharing resistor 227, the other end of an eleventh dynamic voltage-sharing resistor 229 and the other end of the first absorption resistor 231 are connected with one end of a first energy-storage capacitor 208, the other end of a first discharge capacitor 232, the other end of a second discharge capacitor 236 and the other end of a third discharge capacitor 240 are respectively connected with a cathode of a first current-limiting, The cathode of the second current limiting diode 237, the cathode of the third current limiting diode 241, the anode of the twelfth freewheeling diode 235, the anode of the thirteenth freewheeling diode 239, and the anode of the fourteenth freewheeling diode 243 are connected, respectively, the anode of the first current limiting diode 233, the anode of the second current limiting diode 237, and the anode of the third current limiting diode 241 are connected to one end of the plasma synthetic jet actuator 234, one end of the second plasma synthetic jet actuator 238, and one end of the third plasma synthetic jet actuator 242, respectively, the other end of the first plasma synthetic jet actuator 234, the other end of the second plasma synthetic jet actuator 238, and the other end of the third plasma synthetic jet actuator 242 are connected to the cathode of the twelfth freewheeling diode 235, the cathode of the thirteenth freewheeling diode 239, the cathode of the fourteenth freewheeling diode 243, respectively, One end of the first energy storage capacitor 208 is connected to the ground 244, and the output end of the first thyristor driving circuit 212, the output end of the second thyristor driving circuit 213, and the output end of the eleventh thyristor driving circuit 214 are respectively connected to the trigger electrode of the first thyristor switch 215, the trigger electrode of the second thyristor switch 220, and the trigger electrode of the eleventh thyristor switch 225.
Fig. 3 is a circuit diagram of an embodiment of the control circuit module 110. The control circuit module 110 includes a pulse generator module 112 and a switch driving circuit 111, one end of the pulse generator module 112 is connected to one end of the switch driving circuit 111, the other end of the switch driving circuit 111 is connected to one end of the switch circuit 105 in the main circuit module 100, and the pulse generator module 112 generates a control signal to control the on and off of the thyristor switch in the switch circuit 105 through the switch driving circuit 111.
The pulse generator module 112 is composed of a pulse generator 315 and an electro-optical conversion panel 314, and an output terminal of the pulse generator 315 is connected to the electro-optical conversion panel 314. The pulse generator 315 comprises a keyboard, a display screen, and an ARM chip, wherein an output end of the ARM chip is connected with the keyboard and the display screen. The light signals with adjustable pulse width, frequency and pulse number are provided through keyboard input, ARM chip processing, power amplification, electric-optical conversion and display screen display. The electro-optic converter 314 converts the electrical signal into an optical signal, and separates the high-voltage output circuit from the control circuit, thereby preventing the interference of the electromagnetic signal to the control circuit and avoiding the false triggering of the high-voltage switch.
The switch driving circuit 111 is composed of a rectifying module, a second energy storage capacitor 307, an IGBT switch 311, an IGBT switch driving module 312, a photo-electric conversion board 313, eleven isolation pulse transformers 316, eleven voltage dividing resistors, eleven current limiting resistors, eleven freewheeling diodes and eleven current limiting diodes. The rectifying module consists of four rectifying diodes 302, 303, 304, 305. The ac mains supply is connected to the input terminal of the rectifier module, and the output terminal of the rectifier module is connected to the input terminal of the second energy storage capacitor 307, so as to generate a stable dc voltage. The trigger electrode of the IGBT switch 311 is connected to the output end of the IGBT driving module 312, the input end of the IGBT driving module 312 is connected to the output end of the optical-to-electrical converter 313, and the optical-to-electrical converter 313 is connected to the electro-optical converter 314 in the pulse generator 315, so as to control the on/off of the IGBT switch 311. One end of an IGBT switch 311 is connected with the primary side of an eleven-path isolation pulse transformer 316, the secondary side of a single isolation pulse transformer is connected with one end of a single divider resistor, the other end of the single divider resistor is connected with the cathode of the trigger electrode of a single thyristor switch, the other end of the single current limiting resistor is connected with the anode of a single current limiting diode, the cathode of the single current limiting diode is connected with the anode of the trigger electrode of the single thyristor, the single divider resistor is connected with the single fly-wheel diode in parallel, one end of the single divider resistor is connected with the anode of the single current limiting diode, the other end of the single divider resistor is connected with the cathode of the trigger electrode of the single thyristor switch, the connection mode of the secondary side of the eleven-path isolation pulse transformer is consistent with the connection, and eleven-path.
The specific connection is as follows: the second industrial-frequency commercial power 300 is connected with the input end of a second alternating-current voltage regulator 301, the output end of the second alternating-current voltage regulator 301 is connected with the input end of a rectifying module composed of four rectifying diodes 302, 303, 304 and 305, one end of the rectifying module is connected with one end of a second current-limiting resistor 306, the other end of the rectifying module is connected with one end of a second energy-storing capacitor 307, the other end of the second energy-storing capacitor 307 is connected with the other end of the second current-limiting resistor 306, the collector of an IGBT switch 311, one end of a second absorption resistor 308 and the anode of a fifteenth fly-wheel diode 310, the other end of the second absorption resistor 308 and the cathode of the fifteenth fly-wheel diode 310 are connected with one end of a second absorption capacitor 309, the emitter of the IGBT switch 311 is connected with one end of the primary side of an eleven-way isolation pulse transformer 316 and the other end of the second absorption capacitor 309, the other end of the primary side, the output end of the pulse generator 315 is connected to the input end of the electro-optical conversion module 314, the output end of the electro-optical conversion module 314 is connected to the input end of the electro-optical conversion module 313, the output end of the electro-optical conversion module 313 is connected to the input end of the IGBT driving module 312, the output end of the IGBT driving module 312 is connected to the gate of the IGBT switch 311, one end of the secondary side of the eleven-way isolation pulse transformer 316 is connected to one end of the third current-limiting resistor 317, one end of the fourth current-limiting resistor 322, and one end of the thirteenth current-limiting resistor 327, and the other end of the secondary side of the eleven-way isolation pulse transformer 316 is connected to one end of the first voltage-dividing resistor 318, one end of the second voltage-dividing resistor 323, one end of the eleventh voltage-dividing resistor 328, the anode of the sixteenth freewheeling diode 320, the anode of the seventeenth freewheeling, The trigger cathode of the first thyristor switch 215, the trigger cathode of the second thyristor switch 220 and the trigger cathode of the eleventh thyristor switch 225 are connected, the other end of the third current-limiting resistor 317, the other end of the fourth current-limiting resistor 322 and the other end of the thirteenth current-limiting resistor 327 are respectively connected with the other end of the first voltage-dividing resistor 318, the other end of the second voltage-dividing resistor 323, the other end of the eleventh voltage-dividing resistor 328, the cathode of the sixteenth freewheeling diode 320, the cathode of the seventeenth freewheeling diode 325, the cathode of the twenty-sixth freewheeling diode 330 and the anodes of the current-limiting diodes 319, 324 and 329, the cathode of the fourth current limiting diode 319, the cathode of the fifth current limiting diode 324, and the cathode of the fourteenth current limiting diode 329 are connected to the trigger anode of the first thyristor switch 215, the trigger anode of the second thyristor switch 220, and the trigger anode of the eleventh thyristor switch 225, respectively.
The working process of the present invention is explained with reference to fig. 2 and 3. In fig. 2, a first industrial frequency commercial power 200 is adjusted in voltage by a first ac voltage regulator 201, is boosted by a boost transformer 202 to become a high-voltage ac, the high-voltage ac is changed into a high-voltage dc by a first rectifier diode 203, a second rectifier diode 204, a third rectifier diode 205, a fourth rectifier diode 206, and is charged to a first energy storage capacitor 208 by a first current limiting resistor 207, the first current limiting resistor 207 is used for protecting the first ac voltage regulator 201, the boost transformer 202, the first rectifier diode 203, the second rectifier diode 204, the third rectifier diode 205, and the fourth rectifier diode 206, the first energy storage capacitor 208 is used for respectively providing a first discharge capacitor 232 with a current limiting inductor 209, an isolation diode 210, a first discharge capacitor 232, a second discharge capacitor 236, a third discharge capacitor 240, a twelfth freewheeling diode 235, a thirteenth freewheeling diode 239, and a fourteenth freewheeling diode 243, The second and third discharging capacitors 236 and 240 are charged. Similarly, in fig. 3, the second industrial-frequency mains 300 is regulated by the second ac voltage regulator 301, and rectified by the fifth rectifier diode 302, the sixth rectifier diode 303, the seventh rectifier diode 304, and the eighth rectifier diode 305 to become a 22V dc voltage, the 22V dc voltage charges the second energy-storage capacitor 307 through the second current-limiting resistor 306, and the second current-limiting resistor 306 is used for protecting the second ac voltage regulator 301, the fifth rectifier diode 302, the sixth rectifier diode 303, the seventh rectifier diode 304, and the eighth rectifier diode 305. When the pulse generator 315 generates a required pulse signal, the pulse signal is output by the ARM chip, the electrical signal is converted into an optical signal by the electrical-to-optical conversion module 314, the optical signal is transmitted to the optical-to-electrical conversion module 313, the optical signal is converted into an electrical signal and is input to the IGBT switch driving module 312, the IGBT switch driving module 312 inputs a driving signal to the gate of the IGBT switch 311, the IGBT switch 311 is turned on, the second energy storage capacitor 307 generates a low-voltage signal on the primary side of the eleven isolation pulse transformers 316, the low-voltage signal is boosted by the eleven isolation pulse transformers 316, the eleven synchronous driving signals are generated on the secondary side of the eleven isolation pulse transformers 316, the eleven synchronous driving signals are limited by the third current limiting resistor 317, the fourth current limiting resistor 322, the thirteenth current limiting resistor 327, the first voltage dividing resistor 318, the second voltage dividing resistor 323, the eleventh voltage dividing resistor 328, and the, The current amplitude satisfies the synchronous trigger signal of the trigger requirement of eleven thyristor switches, the back pressure is removed by the sixteenth freewheeling diode 320, the seventeenth freewheeling diode 325 and the twenty-sixth freewheeling diode 330, the reverse current is removed by the fourth current limiting diode 319, the fifth current limiting diode 324 and the fourteenth current limiting diode 329, and then the ten synchronous trigger signals with better waveform are obtained, the fifteenth freewheeling diode 310, the second absorption resistor 308 and the second absorption capacitor 309 are connected in parallel at two ends of the IGBT switch 311 and are used for absorbing the peak voltage generated when the IGBT switch 311 is turned on and off, the eleven synchronous trigger signals are respectively connected with the trigger cathode and the trigger anode of eleven thyristor switches in the main circuit module 110, so that the eleven thyristor switches in the main circuit module 110 are simultaneously turned on. The first discharge capacitor 232, the second discharge capacitor 236 and the third discharge capacitor 240 respectively apply three paths of synchronous 10kV negative polarity high voltage to the first plasma synthetic jet exciter 234, the second plasma synthetic jet exciter 238, the third plasma synthetic jet exciter 242 and two ends of the first plasma synthetic jet exciter 234, the second plasma synthetic jet exciter 238, the third plasma synthetic jet exciter 242, the first current limiting diode 233, the second current limiting diode 237 and the third current limiting diode 241, and discharge respectively through the inductor 211, the eleven thyristor switches connected in series, the first plasma synthetic jet exciter 234, the second plasma synthetic jet exciter 238, the third plasma synthetic jet exciter 242, the first current limiting diode 233, the second current limiting diode 237 and the third current limiting diode 241 to generate three paths of synchronous plasma synthetic jets. The first current limiting diode 233, the second current limiting diode 237 and the third current limiting diode 241 are used for only allowing the forward discharge current to pass; the twelfth freewheeling diode 235, the thirteenth freewheeling diode 239 and the fourteenth freewheeling diode 243 provide a loop for charging the first discharging capacitor 232, the second discharging capacitor 236 and the third discharging capacitor 240 on the one hand, and provide a freewheeling channel for the discharged reverse current on the other hand; the inductor 211 is used for adjusting the discharge parameters of the circuit; the first static voltage-sharing resistor 217, the second static voltage-sharing resistor 222 and the eleventh static voltage-sharing resistor 227 have the functions of ensuring that the voltages borne by the thyristor series-connected switches are consistent when the thyristor series-connected switches are blocked, and avoiding burning of a certain thyristor switch due to overvoltage; the first dynamic voltage-sharing capacitor 218, the second dynamic voltage-sharing capacitor 223, the eleventh dynamic voltage-sharing capacitor 228, the first dynamic voltage-sharing resistor 219, the second dynamic voltage-sharing resistor 224 and the eleventh dynamic voltage-sharing resistor 229 are used for ensuring that the voltages borne by the thyristor series switch during the on and off processes are consistent, and avoiding burning of a certain thyristor switch due to overvoltage; the current-limiting inductor 209 is used for ensuring that the series thyristor switches can be normally switched on and off; the isolation diode 210 functions to prevent a reverse current generated from a subsequent circuit from affecting a previous stage. The forward current generated by the simultaneous operation of the first plasma synthetic jet actuator 234, the second plasma synthetic jet actuator 238 and the third plasma synthetic jet actuator 242 passes through eleven thyristor switches connected in series, the reverse current passes through the first freewheeling diode 216, the second freewheeling diode 221 and the eleventh freewheeling diode 226, the reliable turn-off of the series thyristor switches is ensured when the main functions of the first freewheeling diode 216, the second freewheeling diode 221 and the eleventh freewheeling diode 226 are achieved, and the first absorption capacitor 230 and the first absorption resistor 231 are used for absorbing the peak voltage generated by the series thyristor switches during the turn-on and turn-off.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A high voltage pulse power supply with synchronous discharge of a plurality of plasma synthetic jet actuators, comprising:
the main circuit module (100) is respectively connected with the control circuit module (110), the power supply module (120) and the protection circuit module (130), and the main circuit module (100) is used for generating multiple paths of synchronous negative-polarity high-voltage pulses;
the control circuit module (110) is respectively connected with the main circuit module (100), the power supply module (120) and the protection circuit module (130), and the control circuit module (110) is used for generating an IGBT switch driving signal;
a power supply module (120) respectively connected to the main circuit module (100) and the control circuit module (110), the power supply module (120) supplying power to the main circuit module (100) and the control circuit module (110);
a protection circuit module (130) respectively connected to the main circuit module (100) and the control circuit module (110), the protection circuit module (130) protecting thyristor switches in the main circuit module (100) and IGBT switches in the control circuit module (110).
2. The high-voltage pulse power supply according to claim 1, wherein the main circuit module (100) comprises a voltage regulating circuit (101), a boosting circuit (102), a rectifying circuit (103), a charging circuit (104), a switching circuit (105), and a load (106);
one end of the voltage regulating circuit (101) is connected with one end of the boosting circuit (102), the other end of the boosting circuit (102) is connected with one end of the rectifying circuit (103), the other end of the rectifying circuit (103) is connected with one end of the charging circuit (104), the other end of the charging circuit (104) is connected with one end of the switch circuit (105), and the other end of the switch circuit (105) is connected with the load (106).
3. The high-voltage pulse power supply according to claim 2,
the voltage regulating circuit (101) is a first alternating current voltage regulator (201) and is used for regulating the voltage of 220V alternating current commercial power to realize voltage regulation;
the boosting circuit (102) is a boosting transformer (202) and boosts the output voltage of the first alternating current voltage regulator (201);
the rectifying circuit (103) is composed of four high-voltage rectifying diodes (203), (204), (205), (206), a first current-limiting resistor (207) and a first energy-storage capacitor (208), the first rectifying diode (203), the second rectifying diode (204), a third rectifying diode (205) and the fourth rectifying diode (206) form a rectifying bridge, the input end of the rectifying bridge is connected with the output end of the boosting transformer (202), the output end of the boosting transformer (202) is connected with the two ends of the first energy-storage capacitor (208) through the first current-limiting resistor (207) to rectify the alternating-current voltage output by the boosting transformer (202), and the first energy-storage capacitor (208) is charged through the first current-limiting resistor (207) to change the alternating-current voltage into direct-current voltage;
the charging circuit (104) is composed of a current-limiting inductor (209), an isolating diode (210), a plurality of discharging capacitors and a plurality of freewheeling diodes, one end of the first energy-storing capacitor (208) is connected with one end of the current-limiting inductor (209), the isolating diode (210), the plurality of discharging capacitors and the plurality of freewheeling diodes are connected in series, one end of each freewheeling diode is connected with the other end of the energy-storing capacitor (208) and connected with the ground (244), and a branch formed by connecting the plurality of discharging capacitors and the plurality of freewheeling diodes in series is connected in parallel;
the switch circuit (105) consists of a static voltage-sharing circuit consisting of an inductor (211), eleven thyristor switches, eleven freewheeling diodes and eleven groups of static voltage-sharing resistors, and a dynamic voltage-sharing circuit consisting of eleven groups of dynamic voltage-sharing resistors and eleven groups of dynamic voltage-sharing capacitors which are connected in series; in the single-group thyristor system circuit, a single-group thyristor driving circuit is connected with a single-group static voltage-sharing circuit and a single-group dynamic voltage-sharing circuit in parallel; the eleven groups of thyristor system circuits are connected in series to form a thyristor series high-voltage switch, one end of the high-voltage switch is connected with one end of the inductor (211), the other end of the inductor (211) is connected with the cathode of the isolation diode (210), and the other end of the high-voltage switch is connected with one end of the first energy storage capacitor (208) to control the working states of the plurality of discharge capacitors;
the load (106) consists of a plurality of plasma synthetic jet actuators and a plurality of current limiting diodes, each single plasma synthetic jet actuator consists of a cavity, a hole cover and two tungsten needle electrodes which penetrate through the cavity and have adjustable intervals, one end of each single plasma synthetic jet actuator is connected with the anode of each current limiting diode, the cathode of each current limiting diode is connected with one end of each discharge capacitor, the other end of each plasma synthetic jet actuator is connected with the grounding end of the first energy storage capacitor (208), and the connection modes of the discharge capacitors, the freewheel diodes, the current limiting diodes and the plasma synthetic jet actuators are consistent with the connection modes.
4. The high voltage pulse power supply according to claim 3, wherein the switch protection circuit of the main circuit module (100) is an RC circuit having an absorption resistor and an absorption capacitor connected in series, and is connected in parallel with the high voltage thyristor switch to absorb voltage spikes generated by the high voltage thyristor switch during turning on and off.
5. The high-voltage pulse power supply according to claim 1, wherein the control circuit module (110) comprises a pulse generator module (112) and a switch driving circuit (111), one end of the pulse generator module (112) is connected to one end of the switch driving circuit (111), the other end of the switch driving circuit (111) is connected to one end of a switch circuit (105) in the main circuit module (100), and the pulse generator module (112) in the control circuit module (110) generates a control signal to control the on and off of a thyristor switch in the switch circuit (105) of the main circuit module (100) through the switch driving circuit (111).
6. The high-voltage pulse power supply according to claim 5,
the pulse generator module (112) is composed of a pulse generator (315) and an electro-optic conversion plate (314), and the output end of the pulse generator (315) is connected with the electro-optic conversion plate (314); the pulse generator (315) comprises a keyboard, a display screen and an ARM chip, wherein the output end of the ARM chip is connected with the keyboard and the display screen, and the pulse generator provides optical signals with adjustable pulse width, frequency and pulse number through keyboard input, ARM chip processing, power amplification, electric-optical conversion and display screen display; the electro-optic conversion board (314) converts the electric signal into an optical signal, separates the high-voltage output circuit from the control circuit, prevents the interference of an electromagnetic signal to the control circuit and avoids the false triggering of a high-voltage switch;
the switch driving circuit (111) consists of a rectifying module, a second energy storage capacitor (307), an IGBT switch (311), an IGBT switch driving module (312), a light-electricity conversion plate (313), eleven isolation pulse transformers (316), eleven voltage dividing resistors, eleven current limiting resistors, eleven freewheeling diodes and eleven current limiting diodes, wherein the rectifying module consists of four rectifying diodes (302), (303), (304) and (305); the alternating current commercial power is connected with the input end of the rectification module, and the output end of the rectification module is connected with the input end of the second energy storage capacitor (307) to generate stable direct current voltage; the trigger electrode of the IGBT switch (311) is connected with the output end of the IGBT drive module (312), the input end of the IGBT switch drive module (312) is connected with the output end of the photoelectric conversion plate (313), the photoelectric conversion plate (313) is connected with the photoelectric conversion plate (314), and the IGBT switch (311) is controlled to be switched on and off; one end of the IGBT switch (311) is connected with the primary side of the eleven-path isolation pulse transformer (316), the secondary side of the single isolation pulse transformer is connected with one end of a single divider resistor, the other end of the single divider resistor is connected with the cathode of the trigger electrode of the single thyristor switch, the other end of the single current limiting resistor is connected with the anode of the single current limiting diode, the cathode of the single current limiting diode is connected with the anode of the trigger electrode of the single thyristor, the single divider resistor is connected with the single fly-wheel diode in parallel, one end of the single divider resistor is connected with the anode of the single current limiting diode, the other end of the single divider resistor is connected with the cathode of the trigger electrode of the single thyristor switch, the connection mode of the secondary side of the eleven-path isolation pulse transformer is consistent with the connection mode, and eleven-path synchronous driving signals.
7. The high-voltage pulse power supply according to claim 6, wherein the switch protection circuit of the control circuit module (110) is an RCD circuit in which an absorption resistor is connected in parallel with a freewheeling diode and then connected in series with an absorption capacitor, and is connected in parallel with an IGBT switch to absorb voltage spikes generated by the IGBT switch when the IGBT switch is turned on and off.
8. The high-voltage pulse power supply according to claim 1, wherein the power supply module (120) comprises a power supply circuit (121), one end of the power supply circuit (121) is respectively connected to one end of a voltage regulating circuit (101) in the main circuit module (100), one end of a pulse generator module (112) in the control circuit module (110), and one end of a switch driving circuit (111) in the control circuit module (110), the power supply circuit (121) provides 220V ac voltage for the main circuit module (100), provides 220V ac voltage for the switch driving circuit (111) of the control circuit module (110), and provides 5V dc voltage for the pulse generator module (112) of the control circuit module (110).
9. The high-voltage pulse power supply according to claim 1, wherein the protection circuit module (130) comprises a switch protection circuit (131), the switch protection circuit (131) is respectively connected to the switch circuit (105) in the main circuit module (100) and the switch driving circuit (111) in the control circuit module (110), and the switch protection circuit (131) provides protection for the thyristor switch of the switch circuit (105) in the main circuit module (100) and protection for the IGBT switch of the switch driving circuit (111) in the control circuit module (110).
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| CN113644837A (en) * | 2021-08-11 | 2021-11-12 | 中国空气动力研究与发展中心低速空气动力研究所 | Multi-channel high-current pulse excitation circuit for deicing |
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| CN114221569A (en) * | 2021-12-21 | 2022-03-22 | 中国人民解放军国防科技大学 | Parallel discharge device and method for plasma high-energy synthetic jet actuator |
| CN114221569B (en) * | 2021-12-21 | 2023-12-01 | 中国人民解放军国防科技大学 | Parallel discharge device and method for plasma high-energy synthetic jet exciter |
| CN115459603A (en) * | 2022-09-22 | 2022-12-09 | 南京航空航天大学 | Synthetic jet flow generating circuit based on isolation saturated inductor |
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