CN102983730A - Direct-current harmonic suppression system and method of double reversed star-like rectification system - Google Patents
Direct-current harmonic suppression system and method of double reversed star-like rectification system Download PDFInfo
- Publication number
- CN102983730A CN102983730A CN201210589605XA CN201210589605A CN102983730A CN 102983730 A CN102983730 A CN 102983730A CN 201210589605X A CN201210589605X A CN 201210589605XA CN 201210589605 A CN201210589605 A CN 201210589605A CN 102983730 A CN102983730 A CN 102983730A
- Authority
- CN
- China
- Prior art keywords
- current
- switching tube
- inductance
- circuit
- diode
- 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
Landscapes
- Inverter Devices (AREA)
Abstract
The invention discloses a direct-current harmonic suppression system and method of a double reversed star-like rectification system, belonging to the field of electric power and electronic technologies. The problems that due to the non-linearity of the conventional double reversed star-like rectification system, a great quantity of harmonic waves are generated and the size and the capacity of the system are both increased after a harmonic wave compensating device is installed at an alternative current side. According to the direct-current harmonic suppression system and method, a synchronous circuit acquires a reference triangular wave signal; in a control circuit, the signal is multiplied with an acquired current of a load circuit so as to obtain a current reference signal; the current reference signal is compared with the acquired current so as to generate a driving signal; the PWM (Pulse-Width Modulation) driving signal is transmitted to a driving circuit; the driving circuit carries out power amplification on the received PWM driving signal and outputs to a third harmonic generation current triangular wave inverter circuit; a secondary side current value of an interphase reactor is adjusted; and the secondary side current value of the interphase reactor with a secondary side is 0.5 times of a load loop current value through current closed-loop control. The direct-current harmonic suppression system and method is applicable to the harmonic suppression of the double reversed star-like rectification system.
Description
Technical field
The DC side harmonics that the present invention relates to a kind of double reverse-stars type commutation system suppresses System and method for, belongs to electric and electronic technical field.
Background technology
In the commercial Application such as metallide, the DC power supply that often needs low-voltage, high-current, the double reverse-stars type commutation system is widely applied in these low-voltage, high-currents (for example tens volts to tens volts, the hundreds of peace is to several Wan An) occasion as a kind of common low-voltage, high-current commutation system.Because this commutation system is non-linear, can make it produce a large amount of harmonic waves, reduce the power factor of system, electrical network is produced serious harmonic pollution.
At present, the main method that solves high-power double reverse-stars type commutation system harmonic pollution problem in the prior art is to compensate the harmonic wave that commutation system produces by the installing harmonic compensation device, for example adopt various active, passive and hybrid filters to compensate the harmonic wave that commutation system produces, this method all is suitable for for the harmonic wave that various harmonic sources produce.But in a lot of occasions, the power grade of filter and the power grade of commutation system are more or less the same, and so not only can increase capacity and the volume of whole system, also can increase system loss and cost simultaneously.The method that the installing harmonic compensation device compensates the harmonic wave of commutation system generation is to suppress after harmonic wave produces again, and this time-harmonic wave produces the impact of system.More rational harmonic suppressing method should be able to the active suppression harmonic wave generation, harmonic carcellation is on the impact of system, do not increase simultaneously or capacity and the volume of the least possible increase system.
Summary of the invention
In order to solve the non-linear of existing double reverse-stars type commutation system, can make it produce a large amount of harmonic waves and make the volume of system and the problem that capacity all increases at AC installing harmonic compensation device, the DC side harmonics that has proposed the double reverse-stars type commutation system suppresses System and method for.
The DC side harmonics inhibition system of double reverse-stars type commutation system comprises interphase reactor, frequency tripling electric current triangular wave inverter circuit, drive circuit, signal processing and control circuit, interphase reactor secondary current transducer, synchronous circuit and the load circuit current sensor with secondary
Primary coil with the paralleing reactor of secondary is connected in parallel between two groups of three phase half wave rectification bridge positive polarity output terminals of double reverse-stars type rectification circuit, the positive polarity output terminal that connects load power source with the centre tap of the primary coil of the paralleing reactor of secondary, with the secondary coil of the paralleing reactor of secondary, be connected in parallel on the interchange input side of frequency tripling electric current triangular wave inverter circuit, the positive and negative output of DC side of frequency tripling electric current triangular wave inverter circuit is connected with the positive polarity output terminal of load power source and the negative polarity output of load power source respectively
The first signal input of synchronous circuit links to each other with the different name end of double reverse-stars type commutation system the first secondary coil, the secondary signal input of synchronous circuit links to each other with the different name end of double reverse-stars type commutation system the second secondary coil, the 3rd signal input part of synchronous circuit links to each other with the different name end of double reverse-stars type commutation system the 3rd secondary coil, the output of synchronous circuit connects the synchronizing datum signal input of signal processing and control circuit
The load circuit current sensor is for detection of the electric current between the centre tap of the primary coil of the interphase reactor of the positive polarity output terminal band secondary of load power source, the current signal output end of load circuit current sensor connects the load circuit current signal input of signal processing and control circuit
Reactor secondary current transducer is for detection of the electric current with the secondary coil of the interphase reactor of secondary, and the current signal output end of reactor secondary current transducer connects that signal is processed and the reactor secondary current signal input part of control circuit,
The control signal output of signal processing and control circuit connects the control signal input of drive circuit, and the driving signal output part of drive circuit connects the driving signal input of frequency tripling electric current triangular wave inverter circuit.
Adopt the DC side harmonics inhibition system of double reverse-stars type commutation system to realize that the method that harmonic wave suppresses is: load to be connected between the negative polarity output of load power source of the positive polarity output terminal of load power source of double reverse-stars type commutation system and double reverse-stars type commutation system, synchronous circuit gathers the line voltage signal of two anti-star transformer secondary, after filtering and signal processing, generate the benchmark triangular signal, this benchmark triangular signal is input in signal processing and the control circuit
The load circuit current signal that signal is processed and control circuit detects the benchmark triangular signal that receives and the load circuit current sensor generation current reference signal that multiplies each other, this current reference signal with detect with the secondary current signal of the interphase reactor of secondary relatively after, after the controller of signal processing and control circuit is processed, produce PWM and drive signal, and this PWM driving signal is sent to drive circuit;
Drive circuit drives signal with the PWM that receives to carry out exporting to frequency tripling electric current triangular wave inverter circuit after the power amplification, the secondary current value of adjustment reactor, making secondary current value with the interphase reactor of secondary by current closed-loop control is 0.5 times of described load circuit current value, namely realizes the harmonic wave of double reverse-stars type commutation system is suppressed.
Harmonic wave harmonic wave of the present invention suppresses system extracts former double reverse-stars type commutation system by the secondary with the interphase reactor of secondary harmonic energy, obtain the current source of a required low capacity at the secondary with the interphase reactor of secondary through the conversion of frequency tripling electric current triangular wave inverter circuit, affect the electric current of AC by this current source, realize that the AC Harmonics of Input is in the inhibition of DC side.
System configuration is simple, can active suppression double reverse-stars type commutation system AC the current harmonics of input, after former double reverse-stars type commutation system DC side adds harmonic wave inhibition of the present invention system, the THD of AC input current drops to about 3% by original about 30%, and it only is about 8% of commutation system capacity that harmonic wave of the present invention suppresses power system capacity, can not cause large increase to volume and the capacity of original double reverse-stars type commutation system.
Description of drawings
Fig. 1 is the double reverse-stars type commutation system electrical block diagram that suppresses system with DC side harmonics;
Fig. 2 is the frequency tripling electric current triangular wave inverter circuit structure chart of execution mode two described employing half-bridge structures;
Fig. 3 is the frequency tripling electric current triangular wave inverter circuit structure chart of execution mode three described employing full bridge structures;
Fig. 4 is the unipolarity course of work curve chart of execution mode four described DC side harmonics inhibition methods;
Fig. 5 is the bipolarity course of work curve chart of execution mode four described DC side harmonics inhibition methods;
Fig. 6 to 9 be frequency tripling electric current triangular wave inverter circuit under the unipolarity operating state, the current circuit schematic diagram corresponding with four periods in the course of work curve chart shown in Figure 4, wherein:
Fig. 6 represents 0 to t
1The current circuit schematic diagram of section;
Fig. 7 represents t
1To t
2The current circuit schematic diagram of section;
Fig. 8 represents t
2To t
3The current circuit schematic diagram of section;
Fig. 9 represents t
3To t
4The current circuit schematic diagram of section;
Figure 10 to 13 be frequency tripling electric current triangular wave inverter circuit under the bipolarity operating state, the current circuit schematic diagram corresponding with four periods in the course of work curve chart shown in Figure 5, wherein:
Figure 10 represents 0 to t
1The current circuit schematic diagram of section;
Figure 11 represents t
1To t
2The current circuit schematic diagram of section;
Figure 12 represents t
2To t
3The current circuit schematic diagram of section;
Figure 13 represents t
3To t
4The current circuit schematic diagram of section.
Embodiment
Embodiment one: present embodiment is described in conjunction with Fig. 1, the DC side harmonics inhibition system of the described double reverse-stars type commutation system of present embodiment is installed in the DC side of original double reverse-stars type commutation system, the DC side harmonics inhibition system of described double reverse-stars type commutation system comprises the interphase reactor 1 with secondary, frequency tripling electric current triangular wave inverter circuit 2, drive circuit 3, signal is processed and control circuit 4, interphase reactor secondary current transducer 5, synchronous circuit 6 and load circuit current sensor 7
With the primary coil of the paralleing reactor 1 of secondary, be connected in parallel on two groups of three phase half wave rectification bridge positive polarity output terminal M of double reverse-stars type rectification circuit, between P, the positive polarity output terminal P that connects load power source with the centre tap of the primary coil of the paralleing reactor 1 of secondary, with the secondary coil of the paralleing reactor 1 of secondary, be connected in parallel on the interchange input side of frequency tripling electric current triangular wave inverter circuit 2, the positive and negative output of DC side of frequency tripling electric current triangular wave inverter circuit 2 is connected with negative polarity output N with the positive polarity output terminal P of load power source respectively
The first signal input of synchronous circuit 6 links to each other with the different name end of double reverse-stars type commutation system the first secondary coil, the secondary signal input of synchronous circuit 6 links to each other with the different name end of double reverse-stars type commutation system the second secondary coil, the 3rd signal input part of synchronous circuit 6 links to each other with the different name end of double reverse-stars type commutation system the 3rd secondary coil, the output of synchronous circuit 6 connects the synchronizing datum signal input of signal processing and control circuit 4
Load circuit current sensor 7 is for detection of the positive polarity output terminal P of load power source and with the electric current between the centre tap of the primary coil of the interphase reactor 1 of secondary, the current signal output end of load circuit current sensor 7 connects the load circuit current signal input of signal processing and control circuit 4
Reactor secondary current transducer 5 is for detection of the electric current with the secondary coil of the interphase reactor 1 of secondary, and the current signal output end of reactor secondary current transducer 5 connects that signal is processed and the reactor secondary current signal input part of control circuit 4,
The control signal output of signal processing and control circuit 4 connects the control signal input of drive circuit 3, and the driving signal output part of drive circuit 3 connects the driving signal input of frequency tripling electric current triangular wave inverter circuit 2.
The described harmonic wave inhibition of present embodiment system is installed on the DC side of original double reverse-stars type commutation system, original double reverse-stars type commutation system is connected to electrical network by the double reverse-stars type transformer, the output of double reverse-stars type transformer connects two three phase half wave rectification bridges, the cathode output end M that connects a three phase half wave rectification bridge of double reverse-stars type rectification circuit with former limit one end of the interphase reactor 1 of secondary, the cathode output end Q that connects another three phase half wave rectification bridge of double reverse-stars type rectification circuit with the former limit other end of the interphase reactor 1 of secondary, the input of synchronous circuit 6 connects the line voltage signal output end of two anti-star transformer secondary, and load 8 is connected between the cathode output end N of load power source of the cathode output end P of load power source of double reverse-stars type commutation system and double reverse-stars type commutation system.
Embodiment two: present embodiment is the DC side harmonics of embodiment one described double reverse-stars type commutation system to be suppressed the further restriction of system, and described frequency tripling electric current triangular wave inverter circuit 2 adopts half-bridge or full bridge structure.
Embodiment three: present embodiment is the DC side harmonics of embodiment one described double reverse-stars type commutation system to be suppressed the further restriction of system, described frequency tripling electric current triangular wave inverter circuit 2 adopts full bridge structure, and frequency tripling electric current triangular wave inverter circuit 2 adopts unipolarity or ambipolar PWM control mode.
Embodiment four: present embodiment is described referring to Fig. 2, present embodiment is the DC side harmonics of embodiment one described double reverse-stars type commutation system to be suppressed the further restriction of system, described frequency tripling electric current triangular wave inverter circuit 2 is half-bridge structure, and circuit is by the first inductance L
1N, the one one switching tube S
11, the one one diode D
11, the one one capacitor C
11, the one one resistance R
11, the one or three switching tube S
13, the one or three diode D
13, the one or three capacitor C
13, the one or three resistance R
13, the one or two capacitor C
12, the one or two resistance R
12, the one or four capacitor C
14With the one or four resistance R
14Form the first inductance L
1NAn end link to each other the first inductance L with a end with the secondary coil of the interphase reactor 1 of secondary
1NThe other end simultaneously and the one one diode D
11Anode, the one one switching tube S
11One end, the one one resistance R
11An end, the one or three switching tube S
13An end, the one or three diode D
13Negative electrode, the one or three capacitor C
13An end link to each other the one one switching tube S
11The other end simultaneously and the one one diode D
11Negative electrode, the one one capacitor C
11An end, the one or two capacitor C
12An end, the one or two resistance R
12An end and the positive polarity output terminal P of load power source link to each other the one one resistance R
11The other end and the one one capacitor C
11The other end link to each other, the negative polarity output N of load power source is simultaneously and the one or four resistance R
14An end, the one or four capacitor C
14An end, the one or three resistance R
13An end, the one or three diode D
13Anode and the one or three switching tube S
13The other end link to each other the one or four resistance R
14The other end simultaneously and the one or two resistance R
12The other end, the one or four capacitor C
14The other end, the one or two capacitor C
12Link to each other the one or three capacitor C with the other end with the secondary coil of the interphase reactor 1 of secondary
13The other end link to each other and the one or three resistance R
13The other end link to each other.
Fig. 2 is, the described frequency tripling electric current of present embodiment triangular wave inverter circuit 2 is lower in working order, when the secondary of the interphase reactor 1 of secondary is output as state shown in Figure 2, that is: coil upper end be just, the lower end is in the situation about bearing, the first inductance L
1NThe middle sense of current is direction shown in the arrow among the figure, this first inductance L
1NThe voltage at two ends is state shown in the figure.
Embodiment five: present embodiment is described referring to Fig. 3, present embodiment is the DC side harmonics of embodiment one described double reverse-stars type commutation system to be suppressed the further restriction of system, described frequency tripling electric current triangular wave inverter circuit circuit 2 is the full-bridge controlled rectification circuit, and described full-bridge controlled rectification circuit is by the second inductance L
2N, the 21 switching tube S
21, the 21 diode D
21, the 21 capacitor C
21, the 21 resistance R
21, the two or three switching tube S
23, the two or three diode D
23, the two or three capacitor C
23, the two or three resistance R
23, the two or two switching tube S
22, the two or two diode D
22, the two or two capacitor C
22, the two or two resistance R
22, the two or four switching tube S
24, the two or four diode D
24, the two or four capacitor C
24With the two or four resistance R
24Form,
The second inductance L
2NAn end link to each other the second inductance L with a end with the secondary coil of the interphase reactor 1 of secondary
2NThe other end simultaneously and the 21 switching tube S
21An end, the 21 diode D
21Anode, the 21 resistance R
21An end, the two or three switching tube S
23An end, the two or three diode D
23Negative electrode and the two or three capacitor C
23An end link to each other the 21 switching tube S
21The other end simultaneously and the 21 diode D
21Negative electrode, the 21 capacitor C
21An end, the two or two switching tube S
22An end, the two or two diode D
22Negative electrode, the two or two capacitor C
22An end and the positive polarity output terminal P of load power source link to each other the 21 capacitor C
21The other end and the 21 resistance R
21The other end link to each other the two or two capacitor C
22The other end and the two or two resistance R
22An end link to each other the two or two resistance R
22The other end simultaneously and the two or two switching tube S
22The other end, the two or two diode D
22Anode, with the other end, the two or the four switching tube S of the secondary coil of the interphase reactor 1 of secondary
24An end, the two or four diode D
24Negative electrode, the two or four capacitor C
24An end link to each other the two or four capacitor C
24The other end and the two or four resistance R
24An end link to each other the two or four resistance R
24The other end simultaneously and the two or four switching tube S
24The other end, the two or four diode D
24Anode, negative polarity output N, the two or the three switching tube S of load power source
23The other end, the two or three diode D
23Anode, the two or three resistance R
23An end link to each other the two or three resistance R
23The other end and the two or three capacitor C
23The other end link to each other.
Fig. 3 is, the described frequency tripling electric current of present embodiment triangular wave inverter circuit 2 is lower in working order, when the secondary of the interphase reactor 1 of secondary is output as state shown in Figure 3, that is: coil upper end be just, the lower end is in the situation about bearing, the second inductance L
2NThe middle sense of current is direction shown in the arrow among the figure, this second inductance L
2NThe voltage at two ends is state shown in the figure.
Described frequency tripling electric current triangular wave inverter circuit 2 is full bridge structure, and definition is exported an end for anodal with the secondary of the interphase reactor 1 of secondary, and the other end is output as negative pole.Adopt the frequency tripling electric current triangular wave inverter circuit of full bridge structure as shown in Figure 3.
Embodiment six: present embodiment is the DC side harmonics of embodiment four or five described double reverse-stars type commutation systems to be suppressed the further restriction of system, and described switching tube is selected MOSFET or IGBT.
Described MOSFET or IGBT carry body diode, and the every pair of diode in the frequency tripling electric current triangular wave inverter circuit of described employing full bridge structure and switching tube can be replaced by MOSFET or an IGBT with body diode.
The specific embodiment seven: adopt the DC side harmonics inhibition system of the described double reverse-stars type commutation system of the specific embodiment one to realize that the method that harmonic wave suppresses is: load 8 is connected between the negative polarity output N of load power source of the positive polarity output terminal P of load power source of double reverse-stars type commutation system and double reverse-stars type commutation system, synchronous circuit 6 gathers the line voltage signal of two anti-star transformer secondary, after filtering and signal processing, generate the benchmark triangular signal, this benchmark triangular signal is input in signal processing and control circuit 4
The load circuit current signal that signal is processed and control circuit 4 detects the benchmark triangular signal that receives and the load circuit current sensor 7 generation current reference signal that multiplies each other, this current reference signal with detect with the secondary current signal of the interphase reactor 1 of secondary relatively after, after the controller of signal processing and control circuit is processed, produce PWM and drive signal, and this PWM driving signal is sent to drive circuit 3;
Drive circuit 3 drives signal with the PWM that receives to carry out exporting to frequency tripling electric current triangular wave inverter circuit 2 after the power amplification, the secondary current value of adjustment reactor 1, making secondary current value with the interphase reactor 1 of secondary by current closed-loop control is 0.5 times of described load circuit current value, namely realizes the harmonic wave of double reverse-stars type commutation system is suppressed.
The secondary current zero crossing of described interphase reactor 1 with secondary overlaps with the zero crossing of described two anti-star transformer secondary output phase voltages.
Embodiment eight: referring to Fig. 4,6,7,8 and 9 explanation present embodiments, present embodiment is the further restriction to the method for embodiment seven described harmonic waves inhibition, frequency tripling electric current triangular wave inverter circuit adopts full bridge structure, and uses the unipolar control method
When adopting the unipolar control method, frequency tripling electric current triangular wave inverter circuit has four kinds of mode of operations in half period, and the below introduced four kinds of mode of operations of positive half period successively since 0 moment:
0 to t
1Section: in 0 moment, open the two or three switching tube S
23, the two or three switching tube S
23With the two or four diode D
24Together conducting is with the secondary voltage u of the interphase reactor of secondary
sBe added in the second inductance L
2NOn, the second inductance L
2NCurrent i
sForward flow, and the rising of starting from scratch, the second inductance L
2NStorage power, this moment, the alternating current-direct current side did not have the exchange of energy,
t
1To t
2Section: at t
1Constantly, open the two or two switching tube S
22, this moment the two or three switching tube S
23With the two or two switching tube S
22Together conducting is with the secondary voltage u of the interphase reactor of secondary
sBe added in together the second inductance L with the voltage in the load
2NOn, the second inductance L
2NCurrent i
sRise rapidly the second inductance L
2NContinue storage power, this moment, the alternating current-direct current side was all exported energy to the second inductive energy storage,
t
2To t
3Section: at t
2Constantly, turn-off the two or three switching tube S
23, the 21 diode D
21Afterflow, at this moment the two or two switching tube S
22With the 21 diode D
21Together conducting is with the secondary voltage u of the interphase reactor of secondary
sBe added in the second inductance L
2NOn, the second inductance L
2NCurrent i
sContinue to rise the second inductance L
2NContinue storage power, this moment, the alternating current-direct current side did not have the exchange of energy,
t
3To t
4Section: at t
3Constantly, turn-off the two or two switching tube S
22, the 242 closes pipe D
24Pipe D is closed in conducting this moment the 242
24With the 212 pass pipe D
21Together conducting is with the secondary voltage u of the interphase reactor of secondary
sPower to the load the second inductance L with inductance
1NCurrent i
sBegin to descend the second inductance L
1NContinue storage power, this moment, the energy of AC and inductance passed to load.
Present embodiment is that the mode of operation to the frequency tripling electric current triangular wave inverter circuit 2 that adopts full bridge structure is introduced, this circuit is when the positive half cycle of alternating current and negative half period, the circuit working principle is identical, just operating state is symmetrical, mode of operation when therefore only alternating current being positive half cycle is described, when electric current is negative half period, can obtain the mode of operation of frequency tripling electric current triangular wave inverter circuit when electric current is positive half cycle according to symmetric relation.
Embodiment nine: referring to Fig. 5,10,11,12 and 13 explanation present embodiments, present embodiment is the further restriction to the method for embodiment seven described harmonic waves inhibition, frequency tripling electric current triangular wave inverter circuit adopts full bridge structure, and uses ambipolar control method
When adopting ambipolar control method, frequency tripling electric current triangular wave inverter circuit has four kinds of mode of operations in one-period,, since 0 moment 2 kinds of mode of operations of positive half period is introduced successively at positive half period:
0 to t
1Section: in 0 moment, open the two or three switching tube S
23With the two or two switching tube S
22, with the secondary voltage u of the interphase reactor of secondary
sBe added in together the second inductance L with the voltage in the load
2NOn, the second inductance L
2NCurrent i
sForward increases, at this moment the second inductance L
2NStorage power,
t
1To t
2Section: at t
1Constantly, turn-off the two or three switching tube S
23With the two or two switching tube S
22Switching tube, the second inductance L
2NCurrent i
sThrough the 21 diode D
21With the two or four diode D
24Afterflow, the second inductance L
2NCurrent i
sLinear decline, at this moment the second inductance L
2NWith the secondary voltage u with the interphase reactor of secondary
sPower to the load together,
Negative half-cycle from
Constantly begin, 2 kinds of mode of operations of negative half-cycle introduced successively:
To t
3Section:
Constantly, open the 21 switching tube S
21With the two or four switching tube S
24, with the secondary voltage u of the interphase reactor of secondary
sBe added in together the second inductance L with the voltage in the load
2NOn, the second inductance L
2NCurrent i
sOppositely increase, at this moment the second inductance L
2NStorage power,
t
3To t
4Section: at t
3Constantly, turn-off the 21 switching tube S
21With the two or four switching tube S
24Switching tube, the second inductance L
2NCurrent i s through the two or two diode D
22With the two or three diode D
23Afterflow, the second inductance L
2NCurrent i
sLinear decline, at this moment the second inductance L
2NWith the secondary voltage u with the interphase reactor of secondary
sPower to the load together.
Claims (9)
1. the DC side harmonics of double reverse-stars type commutation system suppresses system, it is characterized in that: it comprises interphase reactor (1), frequency tripling electric current triangular wave inverter circuit (2), drive circuit (3), signal processing and control circuit (4), interphase reactor secondary current transducer (5), synchronous circuit (6) and load circuit current sensor (7) with secondary
Be connected in parallel on two groups of three phase half wave rectification bridge positive polarity output terminal (M of double reverse-stars type rectification circuit with the primary coil of the interphase reactor (1) of secondary, P) between, the positive polarity output terminal (P) that connects load power source with the centre tap of the primary coil of the interphase reactor (1) of secondary, be connected in parallel on the interchange input side of frequency tripling electric current triangular wave inverter circuit (2) with the secondary coil of the interphase reactor (1) of secondary, the DC side of frequency tripling electric current triangular wave inverter circuit (2) just, negative output terminal is connected N with the positive polarity output terminal (P) of load power source respectively with the negative polarity output) be connected
Synchronous circuit, (6) first signal input links to each other with the different name end of double reverse-stars type commutation system the first secondary coil, synchronous circuit, (6) secondary signal input links to each other with the different name end of double reverse-stars type commutation system the second secondary coil, synchronous circuit, (6) the 3rd signal input part links to each other with the different name end of double reverse-stars type commutation system the 3rd secondary coil, synchronous circuit, (6) output connects signal to be processed and control circuit, (4) synchronizing datum signal input
Load circuit current sensor (7) for detection of the positive polarity output terminal (P) of load power source with the electric current between the centre tap of the primary coil of the interphase reactor (1) of secondary, the current signal output end of load circuit current sensor (7) connects the load circuit current signal input of signal processing and control circuit (4)
Reactor secondary current transducer (5) is for detection of the electric current with the secondary coil of the interphase reactor (1) of secondary, the current signal output end of reactor secondary current transducer (5) connects the reactor secondary current signal input part of signal processing and control circuit (4)
The control signal output of signal processing and control circuit (4) connects the control signal input of drive circuit (3), and the driving signal output part of drive circuit (3) connects the driving signal input of frequency tripling electric current triangular wave inverter circuit (2).
2. the DC side harmonics of double reverse-stars type commutation system according to claim 1 suppresses system, it is characterized in that: described frequency tripling electric current triangular wave inverter circuit (2) adopts half-bridge or full bridge structure.
3. the DC side harmonics of double reverse-stars type commutation system according to claim 1 suppresses system, it is characterized in that: described frequency tripling electric current triangular wave inverter circuit (2) adopts full bridge structure, and frequency tripling electric current triangular wave inverter circuit (2) adopts unipolarity or ambipolar PWM control mode.
4. the DC side harmonics of double reverse-stars type commutation system according to claim 1 suppresses system, and it is characterized in that: described frequency tripling electric current triangular wave inverter circuit (2) is half-bridge structure, and circuit is by the first inductance (L
1N), the one one switching tube (S
11), the one one diode (D
11), the one one electric capacity (C
11), the one one resistance (R
11), the one or three switching tube (S
13), the one or three diode (D
13), the one or three electric capacity (C
13), the one or three resistance (R
13), the one or two electric capacity (C
12), the one or two resistance (R
12), the one or four electric capacity (C
14) and the one or four resistance (R
14) form the first inductance (L
1N) an end link to each other the first inductance (L with a end with the secondary coil of the interphase reactor 1 of secondary
1N) the other end simultaneously and the one one diode (D
11) anode, the one one switching tube (S
11) end, the one one resistance (R
11) an end, the one or three switching tube (S
13) an end, the one or three diode (D
13) negative electrode, the one or three electric capacity (C
13) an end link to each other the one one switching tube (S
11) the other end simultaneously and the one one diode (D
11) negative electrode, the one one electric capacity (C
11) an end, the one or two electric capacity (C
12) an end, the one or two resistance (R
12) an end and the positive polarity output terminal (P) of load power source link to each other the one one resistance (R
11) the other end and the one one electric capacity (C
11) the other end link to each other, the negative polarity output (N) of load power source is simultaneously and the one or four resistance (R
14) an end, the one or four electric capacity (C
14) an end, the one or three resistance (R
13) an end, the one or three diode (D
13) anode and the one or three switching tube (S
13) the other end link to each other the one or four resistance (R
14) the other end simultaneously and the one or two resistance (R
12) the other end, the one or four electric capacity (C
14) the other end, the one or two electric capacity (C
12) link to each other the one or three electric capacity (C with the other end with the secondary coil of the interphase reactor 1 of secondary
13) the other end link to each other and the one or three resistance (R
13) the other end link to each other.
5. the DC side harmonics of double reverse-stars type commutation system according to claim 1 suppresses system, and it is characterized in that: described full-bridge controlled rectification circuit is by the second inductance (L
2N), the 21 switching tube (S
21), the 21 diode (D
21), the 21 electric capacity (C
21), the 21 resistance (R
21), the two or three switching tube (S
23), the two or three diode (D
23), the two or three electric capacity (C
23), the two or three resistance (R
23), the two or two switching tube (S
22), the two or two diode (D
22), the two or two electric capacity (C
22), the two or two resistance (R
22), the two or four switching tube (S
24), the two or four diode (D
24), the two or four electric capacity (C
24) and the two or four resistance (R
24) form,
The second inductance (L
2N) an end link to each other the second inductance (L with a end with the secondary coil of the interphase reactor 1 of secondary
2N) the other end simultaneously and the 21 switching tube (S
21) an end, the 21 diode (D
21) anode, the 21 resistance (R
21) an end, the two or three switching tube (S
23) an end, the two or three diode (D
23) negative electrode and the two or three electric capacity (C
23) an end link to each other the 21 switching tube (S
21) the other end simultaneously and the 21 diode (D
21) negative electrode, the 21 electric capacity (C
21) an end, the two or two switching tube (S
22) an end, the two or two diode (D
22) negative electrode, the two or two electric capacity (C
22) an end and the positive polarity output terminal (P) of load power source link to each other the 21 electric capacity (C
21) the other end and the 21 resistance (R
21) the other end link to each other the two or two electric capacity (C
22) the other end and the two or two resistance (R
22) an end link to each other the two or two resistance (R
22) the other end simultaneously and the two or two switching tube (S
22) the other end, the two or two diode (D
22) anode, with the other end, the two or the four switching tube (S of the secondary coil of the interphase reactor (1) of secondary
24) an end, the two or four diode (D
24) negative electrode, the two or four electric capacity (C
24) an end link to each other the two or four electric capacity (C
24) the other end and the two or four resistance (R
24) an end link to each other the two or four resistance (R
24) the other end simultaneously and the two or four switching tube (S
24) the other end, the two or four diode (D
24) anode, the negative polarity output (N) of load power source, the two or three switching tube (S
23) the other end, the two or three diode (D
23) anode, the two or three resistance (R
23) an end link to each other the two or three resistance (R
23) the other end and the two or three electric capacity (C
23) the other end link to each other.
According to claim 5 or the DC side harmonics of 6 double reverse-stars type commutation systems suppress system, it is characterized in that: described switching tube is selected MOSFET or IGBT.
7. adopt the DC side harmonics inhibition system of double reverse-stars type commutation system claimed in claim 1 to realize the method that harmonic wave suppresses, it is characterized in that: described method is, load (8) is connected between the negative polarity output (N) of load power source of the positive polarity output terminal (P) of the load power source of double reverse-stars type commutation system and double reverse-stars type commutation system, synchronous circuit (6) gathers the line voltage signal of two anti-star transformer secondary, after filtering and signal processing, generate the benchmark triangular signal, this benchmark triangular signal is input in signal processing and the control circuit (4)
The load circuit current signal that signal is processed and control circuit (4) detects the benchmark triangular signal that receives and load circuit current sensor (7) the generation current reference signal that multiplies each other, the secondary current signal of this current reference signal and the interphase reactor with secondary (1) that detects relatively after, after the controller of signal processing and control circuit (4) is processed, produce PWM and drive signal, and this PWM driving signal is sent to drive circuit (3);
Drive circuit (3) drives signal with the PWM that receives to carry out exporting to frequency tripling electric current triangular wave inverter circuit (2) after the power amplification, the secondary current value of adjustment reactor (1), making the secondary current value of the interphase reactor (1) with secondary by current closed-loop control is 0.5 times of described load circuit current value, namely realizes the harmonic wave of double reverse-stars type commutation system is suppressed.
8. the method that suppresses of harmonic wave according to claim 7, it is characterized in that: frequency tripling electric current triangular wave inverter circuit adopts full bridge structure, and uses the unipolar control method,
When adopting the unipolar control method, frequency tripling electric current triangular wave inverter circuit has four kinds of mode of operations in half period, and the below is since 0 constantly, and four kinds of mode of operations of positive half period are followed successively by:
0 to t
1Section: in 0 moment, open the two or three switching tube (S
23), the two or three switching tube (S
23) and the two or four diode (D
24) together conducting, with the secondary voltage u of the interphase reactor of secondary
sBe added in the second inductance (L
2N) on, the second inductance (L
2N) current i
sForward flow, and the rising of starting from scratch, the second inductance (L
2N) storage power, this moment, the alternating current-direct current side did not have the exchange of energy,
t
1To t
2Section: at t
1Constantly, open the two or two switching tube (S
22), this moment the two or three switching tube (S
23) and the two or two switching tube (S
22) together conducting, with the secondary voltage u of the interphase reactor of secondary
sBe added in together the second inductance (L with the voltage in the load
2N) on, the second inductance (L
2N) current i
sRise rapidly the second inductance (L
2N) continue storage power, this moment, the alternating current-direct current side was all exported energy to the second inductive energy storage,
t
2To t
3Section: at t
2Constantly, turn-off the two or three switching tube (S
23), the 21 diode (D
21) afterflow, at this moment the two or two switching tube (S
22) and the 21 diode (D
21) together conducting, with the secondary voltage u of the interphase reactor of secondary
sBe added in the second inductance (L
2N) on, the second inductance (L
2N) current i
sContinue to rise the second inductance (L
2N) continue storage power, this moment, the alternating current-direct current side did not have the exchange of energy,
t
3To t
4Section: at t
3Constantly, turn-off the two or two switching tube (S
22), the 242 closes pipe (D
24) conducting, close pipe (D this moment the 242
24) and the 212 pass pipe (D
21) together conducting, with the secondary voltage (u of the interphase reactor of secondary
s) and inductance power to the load the second inductance (L
1N) current i
sBegin to descend the second inductance (L
1N) continue storage power, this moment, the energy of AC and inductance passed to load.
9. the method that suppresses of harmonic wave according to claim 7, it is characterized in that: frequency tripling electric current triangular wave inverter circuit adopts full bridge structure, and uses ambipolar control method,
When adopting ambipolar control method, frequency tripling electric current triangular wave inverter circuit has four kinds of mode of operations in one-period,, since 0 constantly 2 kinds of mode of operations of positive half period is followed successively by at positive half period:
0 to t
1Section: in 0 moment, open the two or three switching tube (S
23) and the two or two switching tube (S
22), with the secondary voltage u of the interphase reactor of secondary
sBe added in together the second inductance (L with the voltage in the load
2N) on, the second inductance (L
2N) current i
sForward increases, at this moment the second inductance (L
2N) storage power,
t
1To t
2Section: at t
1Constantly, turn-off the two or three switching tube (S
23) and the two or two switching tube (S
22) switching tube, the second inductance (L
2N) current i
sThrough the 21 diode (D
21) and the two or four diode (D
24) afterflow, the second inductance (L
2N) current i
sLinear decline, at this moment the second inductance (L
2N) and with the secondary voltage u of the interphase reactor of secondary
sPower to the load together,
Negative half-cycle from
Constantly begin, 2 kinds of mode of operations of negative half-cycle be followed successively by:
t
3To t
4Section: at t
3Constantly, turn-off the 21 switching tube (S
21) and the two or four switching tube (S
24) switching tube, the second inductance (L
2N) current i
sThrough the two or two diode (D
22) and the two or three diode (D
23) afterflow, the second inductance (L
2N) current i
sLinear decline, at this moment the second inductance (L
2N) and with the secondary voltage u of the interphase reactor of secondary
sPower to the load together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210589605XA CN102983730A (en) | 2012-12-31 | 2012-12-31 | Direct-current harmonic suppression system and method of double reversed star-like rectification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210589605XA CN102983730A (en) | 2012-12-31 | 2012-12-31 | Direct-current harmonic suppression system and method of double reversed star-like rectification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102983730A true CN102983730A (en) | 2013-03-20 |
Family
ID=47857529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210589605XA Pending CN102983730A (en) | 2012-12-31 | 2012-12-31 | Direct-current harmonic suppression system and method of double reversed star-like rectification system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102983730A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280955A (en) * | 2013-06-06 | 2013-09-04 | 哈尔滨工业大学 | Direct current side harmonic suspension system and method of double-inverted-star-shaped thyristor rectifying system |
| CN103580512A (en) * | 2013-11-28 | 2014-02-12 | 哈尔滨工业大学 | Direct-current side harmonic suppression system and method for multi-pulse wave thyristor controllable rectification system |
| CN103595231A (en) * | 2013-11-28 | 2014-02-19 | 哈尔滨工业大学 | Direct-current side harmonic suppression system and method of 12-pulse rectification system on basis of interleaved Boost APFC circuit |
| CN104362841A (en) * | 2014-12-02 | 2015-02-18 | 中国矿业大学 | 18 pulse wave rectification system harmonic suppression system and method |
| CN106130379A (en) * | 2016-04-26 | 2016-11-16 | 哈尔滨工业大学（威海） | Combination type high-current rectifier and active harmonics suppressing method thereof |
| CN118367805A (en) * | 2024-06-19 | 2024-07-19 | 四川杰莱美科技有限公司 | Power frequency full-bridge rectifying device based on signal judgment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006011206A1 (en) * | 2004-07-29 | 2006-02-02 | Mitsubishi Denki Kabushiki Kaisha | Multiplex rectifier circuit |
| CN201504181U (en) * | 2009-08-13 | 2010-06-09 | 上海米开罗那机电技术有限公司 | Three-phase double reverse-star rectifier transformer |
| CN101944843A (en) * | 2010-10-08 | 2011-01-12 | 哈尔滨工业大学 | Recovery-type harmonic suppression system at DC side of multi-pulse rectification system and method |
-
2012
- 2012-12-31 CN CN201210589605XA patent/CN102983730A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006011206A1 (en) * | 2004-07-29 | 2006-02-02 | Mitsubishi Denki Kabushiki Kaisha | Multiplex rectifier circuit |
| CN201504181U (en) * | 2009-08-13 | 2010-06-09 | 上海米开罗那机电技术有限公司 | Three-phase double reverse-star rectifier transformer |
| CN101944843A (en) * | 2010-10-08 | 2011-01-12 | 哈尔滨工业大学 | Recovery-type harmonic suppression system at DC side of multi-pulse rectification system and method |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280955A (en) * | 2013-06-06 | 2013-09-04 | 哈尔滨工业大学 | Direct current side harmonic suspension system and method of double-inverted-star-shaped thyristor rectifying system |
| CN103280955B (en) * | 2013-06-06 | 2016-05-18 | 哈尔滨工业大学 | The DC side harmonics of double reverse-stars type thyristor rectifier system suppresses System and method for |
| CN103580512A (en) * | 2013-11-28 | 2014-02-12 | 哈尔滨工业大学 | Direct-current side harmonic suppression system and method for multi-pulse wave thyristor controllable rectification system |
| CN103595231A (en) * | 2013-11-28 | 2014-02-19 | 哈尔滨工业大学 | Direct-current side harmonic suppression system and method of 12-pulse rectification system on basis of interleaved Boost APFC circuit |
| CN104362841A (en) * | 2014-12-02 | 2015-02-18 | 中国矿业大学 | 18 pulse wave rectification system harmonic suppression system and method |
| CN104362841B (en) * | 2014-12-02 | 2017-07-21 | 中国矿业大学 | A kind of 18 pulse wave rectifier system harmonicses suppression systems and method |
| CN106130379A (en) * | 2016-04-26 | 2016-11-16 | 哈尔滨工业大学（威海） | Combination type high-current rectifier and active harmonics suppressing method thereof |
| CN118367805A (en) * | 2024-06-19 | 2024-07-19 | 四川杰莱美科技有限公司 | Power frequency full-bridge rectifying device based on signal judgment |
| CN118367805B (en) * | 2024-06-19 | 2024-09-13 | 四川杰莱美科技有限公司 | Power frequency full-bridge rectifying device based on signal judgment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101917133B (en) | Five-electrical level inverter | |
| CN102185514B (en) | Single-phase three-level inverter | |
| CN101944843B (en) | Recovery-type harmonic suppression system at DC side of multi-pulse rectification system and method | |
| CN102005954B (en) | Single-phase non-isolated photovoltaic grid-connected inverter and control method | |
| CN102983730A (en) | Direct-current harmonic suppression system and method of double reversed star-like rectification system | |
| CN103036397B (en) | Single-level single-phase large-step-up-ratio cascade connection voltage type convertor of quasi impedance source | |
| CN102332839A (en) | Cascade type time-interval variable-order multi-level static converter | |
| CN205647288U (en) | Non - isolated form photovoltaic grid -connected inverter | |
| CN102255544A (en) | DC (direct current)/AC (alternating current) inverter circuit | |
| CN105226957A (en) | A kind of three-phase-single-phase potential device of no industrial frequency transformer | |
| CN103326606A (en) | One-phase five-level inverter | |
| CN102545681B (en) | Step wave synthesis three-phase inverter capable of eliminating low frequency harmonic waves and control method | |
| CN106712523A (en) | Boost three-level full-bridge inverter and control method thereof | |
| CN202524315U (en) | DC/AC grid-connected inversion circuit | |
| CN114268104A (en) | Novel transformerless three-bridge-arm series active voltage quality regulator and control method | |
| CN103280955B (en) | The DC side harmonics of double reverse-stars type thyristor rectifier system suppresses System and method for | |
| CN113965096B (en) | Series 12 pulse wave rectifier with auxiliary power factor correction circuit | |
| CN102684522A (en) | Non-isolated photovoltaic grid-connected inverter and control method thereof | |
| CN103618336A (en) | Output digital modulation circuit and control system of rectifier type high-frequency chain grid-connected inverter | |
| CN102710133A (en) | Seven-level circuit, a grid-connected inverter and modulation method and device of seven-level circuit | |
| CN103916036A (en) | Buck high-frequency isolation type five-level inverter | |
| CN103036398A (en) | Single-level single-phase large-step-up-ratio cascade connection voltage type convertor of quasi impedance source | |
| CN104467501A (en) | Shoot-through-prevention midpoint clamping type single-phase non-isolated photovoltaic inverter topology | |
| CN101795004A (en) | Alternating current active power factor correction compensation circuit | |
| CN103762839A (en) | Magnetic coupling type single-phase high-gain bridge-free power factor correction circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130320 |