CN102593835A - Fundamental wave magnetic flux tuning passive filter and harmonic wave extraction device - Google Patents
Fundamental wave magnetic flux tuning passive filter and harmonic wave extraction device Download PDFInfo
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Abstract
The invention provides a fundamental wave magnetic flux tuning passive filter and harmonic extraction device which comprises an alternating-current power supply, a harmonic filtering and extraction unit and a load harmonic source, wherein the alternating-current power supply is used for transmitting a generated fundamental wave signal to the harmonic filtering and extraction unit; the harmonic filtering and extraction unit is used for transmitting the fundamental wave signal to the load harmonic source in a tuning manner without attenuation; meanwhile, an extracted harmonic signal is subjected to harmonic rectification and filtering treatment in a tuning manner to obtain a direct-current signal; the load harmonic source is used for providing the fundamental wave signal subjected to harmonic source rectification to a load; and meanwhile, the generated harmonic wave signal is returned to the harmonic filtering and extraction unit. The fundamental wave magnetic flux tuning passive filter and harmonic extraction device has the characteristics of simple structure, better harmonic filtering effect, energy conservation and the like and can be widely applied to the field of accurate equipment control.
Description
Technical field
The present invention relates to the extracting harmonic technology, particularly relate to filtering of a kind of fundamental flux tuning passive and extracting harmonic device.
Background technology
Fig. 1 realizes the accurately composition structural representation of the system of control of power supply output through the supply voltage conversion in the prior art.As shown in Figure 1; Realizing power supply output through supply voltage conversion accurately in the application of other equipment of control, AC power is exported desirable fundamental signal, but the harmonic source that carries out voltage transitions produces desirable fundamental signal and pollutes; Make the desirable fundamental signal in the transmission line produce distortion owing to the harmonic signal of the various frequencies that superposeed; That is, pollute AC power, and then influenced the operate as normal of other loads; It is thus clear that the harmonic wave that power electronic equipment produces has become the main harmonic pollution source of electric power system.In the practical application, the value volume and range of product of harmonic source is more and more many, and the capacity of equipment is also more and more big, has caused the entrained energy of harmonic wave also considerable like this.Therefore, the difficulty of harmonic carcellation increases day by day, and expense is also corresponding to be increased; And the elimination of harmonic wave has also caused the waste of the energy.
Harmonic carcellation can adopt modes such as active power filtering and passive filtering.Fig. 2 is the composition structural representation of serial active filter in the prior art.Fig. 3 is the composition structural representation of shunt active power filter in the prior art.Active power filtering mainly adopts fundamental flux compensation and inversion transformation technique, and the mode through series transformer or shunt transformer realizes, like Fig. 2, shown in Figure 3.The active power filtering mode is introduced primary side with the Circuit Fault on Secondary Transformer fundamental current through inverter, make first-harmonic present zero impedance, and harmonic wave presents high impedance, can the filtering harmonic electric current, and effect is better, but complex structure, cost is higher.The passive filtering mode adopts passive components such as power capacitor, reactor and resistor to form single-tuned circuit or multiresonant circuit, but filtering once or the harmonic wave of certain predetermined number of times several times.Because the filtering performance of passive filtering mode receives the influence of system parameters, external environment condition bigger, filter effect is relatively poor.
This shows, in the prior art, the equipment of harmonic carcellation or circuit more complicated, it is relatively poor that harmonic wave is eliminated effect, and waste energy.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of simple in structure, harmonic wave to eliminate effect better and the filtering of fundamental flux tuning passive and the extracting harmonic device of energy savings.
In order to achieve the above object, the technical scheme of the present invention's proposition is:
Filtering of a kind of fundamental flux tuning passive and extracting harmonic device comprise that AC power, harmonic filtration and extraction unit and band carry harmonic source; The live wire end of AC power is connected to the input of harmonic filtration and extraction unit through first live wire; The output of harmonic filtration and extraction unit is connected to the live wire end that band carries harmonic source through second live wire, and the zero line side of AC power is connected through zero line with the zero line side that band carries harmonic source; Wherein,
AC power, be used for said AC power self produce fundamental signal be sent to harmonic filtration and extraction unit.
Harmonic filtration and extraction unit, the fundamental signal that is used to adopt tuning manner that AC power is sent is sent to band year harmonic source undampedly; Simultaneously, adopt tuning manner to extract band and carry the harmonic signal that harmonic source sends, and this harmonic signal is carried out harmonic wave rectification, Filtering Processing, to obtain direct current signal.
Band carries harmonic source, is used for the fundamental signal of harmonic filtration and extraction unit transmission is carried out offering load after the harmonic source rectification, simultaneously the harmonic signal that produces is back to harmonic filtration and extraction unit.
In sum; In fundamental flux tuning passive according to the invention filtering and the extracting harmonic device; Harmonic filtration and extraction unit are handled AC power fundamental signal that produces and the harmonic signal that band year harmonic source returns; On the one hand, the fundamental signal that AC power produces is sent to band with undamped mode unblockedly carried harmonic source under the tuning effect of fundamental flux, with the accurate control of thinking load the basis is provided; On the other hand; The harmonic signal that band year harmonic source returns is hindered under the tuning effect of fundamental flux and can't be passed to AC power; Can not produce and pollute, and convert the harmonic signal that extracts into supply external equipment to use direct current signal the fundamental signal that AC power generates.Because the present invention adopts tuning manner to extract fundamental signal, so extraction effect is relatively good and relatively simple for structure; Because the harmonic signal that the present invention extracts can be fully utilized, therefore also has the advantage of energy savings.
Description of drawings
Fig. 1 realizes the accurately composition structural representation of the system of control of power supply output through the supply voltage conversion in the prior art.
Fig. 2 is the composition structural representation of serial active filter in the prior art.
Fig. 3 is the composition structural representation of shunt active power filter in the prior art.
Fig. 4 is the composition structural representation of fundamental flux tuning passive according to the invention filtering and extracting harmonic device.
Fig. 5 is the composition structural representation of harmonic filtration of the present invention and extraction unit.
Fig. 6 is the composition structural representation of transformer module of the present invention.
Fig. 7 is the composition structural representation of harmonic wave processing module of the present invention.
Fig. 8 is the composition structural representation of filter circuit of the present invention.
Fig. 9 is the composition structural representation of tuner module of the present invention.
Figure 10 is the composition structural representation of first embodiment of the invention.
Figure 11 is the composition structural representation of second embodiment of the invention.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing and specific embodiment that the present invention is done to describe in detail further below.
Fig. 4 is the composition structural representation of fundamental flux tuning passive according to the invention filtering and extracting harmonic device.As shown in Figure 4, fundamental flux tuning passive according to the invention filtering and extracting harmonic device comprise that AC power 1, harmonic filtration and extraction unit 2 and band carry harmonic source 3; The live wire end of AC power 1 is connected to the input of harmonic filtration and extraction unit 2 through first live wire; The output of harmonic filtration and extraction unit 2 is connected to the live wire end that band carries harmonic source 3 through second live wire, and the zero line side of AC power 1 is connected through zero line with the zero line side that band carries harmonic source 3; Wherein,
Harmonic filtration and extraction unit 2, the fundamental signal that is used to adopt tuning manner that AC power 1 is sent is sent to band year harmonic source 3 undampedly; Simultaneously, adopt tuning manner to extract band and carry the harmonic signal that harmonic source sends, and this harmonic signal is carried out harmonic wave rectification, Filtering Processing, to obtain direct current signal.
Band carries harmonic source 3, is used for the fundamental signal of harmonic filtration and extraction unit 2 transmissions is carried out offering load after the harmonic source rectification, simultaneously the harmonic signal that produces is back to harmonic filtration and extraction unit 2.
In a word, in fundamental flux tuning passive according to the invention filtering and the extracting harmonic device, harmonic filtration and extraction unit adopt tuning manner to extract fundamental signal and harmonic signal on the transmission line, and band carries harmonic source and obtains undamped fundamental signal; In addition; Filtering hinders band with extraction harmonic wave unit and carries the harmonic signal that harmonic source returns; Make harmonic signal can't be passed to AC power, harmonic signal can not produce the fundamental signal that AC power generates and pollute, and also converts the harmonic signal that extracts into supply external equipment to use direct current signal.The present invention adopts tuning manner to extract fundamental signal, so the harmonic filtration effect is relatively good, and structure is also fairly simple; Also made full use of harmonic signal simultaneously, so the present invention also has the advantage of energy savings.
Fig. 5 is the composition structural representation of harmonic filtration of the present invention and extraction unit.As shown in Figure 5; Harmonic filtration and extraction unit 2 comprise transformer module 21, harmonic wave processing module 22 and tuner module 23; The input of the first input end of transformer module 21 through harmonic filtration and extraction unit 2 is connected to the live wire end of AC power 1 by first live wire, and first output of transformer module 21 is connected to the live wire end that band carries harmonic source 3 through the output of harmonic filtration and extraction unit 2 by second live wire; Second output of transformer module 21 is connected to the first input end of harmonic wave processing module 22; Second input of transformer module 21 is connected to first output of harmonic wave processing module 22, exports direct current signal between second input of harmonic wave processing module 22 and second output of harmonic wave processing module 22; The 3rd output of transformer module 21 is connected to the input of tuner module 23, and the 3rd input of transformer module 21 is connected to the output of tuner module 23; Wherein,
Transformer module 21; Be used under the control of the harmonic ringing that tuner module 23 sends; The fundamental signal that AC power 1 is sent is passed to band year harmonic source 3 undampedly; The fundamental signal that AC power 1 is sent is passed to tuner module 23, and the harmonic signal that band is carried harmonic source 3 transmissions is sent to harmonic wave processing module 22; The harmonic ringing that is sent by tuner module 23 obtains first induced signal, obtains second induced signal according to first induced signal again.
Harmonic wave processing module 22 after being used for the harmonic signal that transformer module 21 sends carried out harmonic wave rectification, Filtering Processing, obtains direct current signal.
Tuner module 23 is used for the fundamental signal that transformer module 21 sends is carried out tuning processing, and the harmonic ringing that obtains is sent to transformer module 21.
Fig. 6 is the composition structural representation of transformer module of the present invention.As shown in Figure 6, transformer module 21 comprises as the main coil of transformer first siding ring, as the extracting harmonic coil of Circuit Fault on Secondary Transformer first coil, as the syntonizing coil of Circuit Fault on Secondary Transformer second coil; The first input end of the input of main coil through transformer module 21 is connected to the live wire end of AC power 1 by first live wire, and the output of main coil is connected to the live wire end that band carries harmonic source 3 through first output of transformer module 21 by second live wire; The output of extracting harmonic coil is connected to the first input end of harmonic wave processing module 22 through second output of transformer module 21, and the input of extracting harmonic coil is connected to first output of harmonic wave processing module 22 through second input of transformer module 21; The output of syntonizing coil is connected to the input of tuner module 23 through the 3rd output of transformer module 21, and the input of syntonizing coil is connected to the output of tuner module 23 through the 3rd input of transformer module 21; Wherein,
Main coil is used under the control from the harmonic ringing of syntonizing coil, will be sent to band on the one hand from the fundamental signal that AC power 1 is sent undampedly and carry a harmonic source 3, is induced to syntonizing coil on the other hand; Harmonic ringing induction according to from syntonizing coil obtains first induced signal, and transmits first induced signal to the extracting harmonic coil; Also be used under control, band carried the harmonic signal that harmonic source 3 sends be passed to the extracting harmonic coil from the harmonic ringing of syntonizing coil.
The extracting harmonic coil is used for responding to second induced signal that obtains according to first induced signal of main coil, adopts induction mode to extract harmonic signal from main coil, and harmonic signal is sent to harmonic wave processing module 22.
In the practical application, said employing induction mode extracts harmonic signal from main coil and is: induction band carries the harmonic signal that harmonic source 3 is back to main coil.
Syntonizing coil is used for obtaining harmonic ringing according to the fundamental signal from main coil, and harmonic ringing is passed to main coil; Also be used for the fundamental signal from main coil is passed to tuner module 23.
In the practical application, obtain harmonic ringing according to the fundamental signal from main coil and be: the fundamental signal to obtaining from the main coil induction carries out tuning processing, obtains harmonic ringing.
Among the present invention, the ohmic leakage size of main coil is 0.001～0.03pu, and the leakage inductance size is 0.001～0.01pu; Extracting harmonic coil ohmic leakage size is 0.001～0.03pu, and the leakage inductance size is 0.001～0.01pu; The ohmic leakage size of syntonizing coil is 0.001～0.03pu, and the leakage inductance size is 0.001～0.01pu.
In the practical application, for guaranteeing filter effect, the ratio between the excitation impedance of transformer module 21 and the primary side leakage impedance is greater than 100; The size of the excitation resistance of transformer module 21 is Rm=15～25pu, and the size of magnetizing inductance is Lm=15～25pu.
Fig. 7 is the composition structural representation of harmonic wave processing module of the present invention.As shown in Figure 7, harmonic wave processing module 22 comprises harmonic wave rectification circuit 221 and filter circuit 222; The first input end of harmonic wave rectification circuit 221 is connected to second output of transformer module 21, and first output of harmonic wave rectification circuit 221 is connected to second input of transformer module 21; Second output of harmonic wave rectification circuit 221 is connected to the first input end of filter circuit 222, and second input of harmonic wave rectification circuit 221 is connected to first output of filter circuit 222; Second output of filter circuit 222 is as second output of harmonic wave processing module 22; Second input of filter circuit 222 is exported direct current signal as second input of harmonic wave processing module 22 between second output of filter circuit 222 and second input; Wherein,
Harmonic wave rectification circuit 221 is used for the harmonic signal that transformer module 21 sends is carried out harmonic wave rectification, convert harmonic signal into direct current signal after, be sent to filter circuit 222.
Here, for making full use of the each harmonic signal, harmonic wave rectification circuit 221 is a bridge rectifier.
Filter circuit 222 is used for the direct current signal that harmonic wave rectification circuit 221 sends is carried out filtering, with the pulsation of smooth direct current signal.
In the practical application, harmonic wave rectification circuit 221 is a bridge rectifier, and the content of bridge rectifier is a prior art, repeats no more here.
Fig. 8 is the composition structural representation of filter circuit of the present invention.As shown in Figure 8, filter circuit 222 comprises filter inductance L
2With filter capacitor C
2, filter inductance L
2An end be connected to second output of harmonic wave rectification circuit 221 through the first input end of filter circuit 222; Filter inductance L
2The other end on the one hand as second output of filter circuit 222, on the other hand with filter capacitor C
2An end connect; Filter capacitor C
2The other end on the one hand as second input of filter circuit 222, connect second input of harmonic wave rectification circuit 221 on the other hand; Filter inductance L
2The other end and filter capacitor C
2The other end between export direct current signal.
Fig. 9 is the composition structural representation of tuner module of the present invention.As shown in Figure 9,23 of tuner modules comprise tuning coil L
1With tuning capacity C
1, tuning coil L
1An end and tuning capacity C
1An end link to each other tuning coil L
1The first input end of the other end through tuner module 23 be connected tuning capacity C with the 3rd output of transformer module 21
1First output of the other end through tuner module 23 be connected with the 3rd input of transformer module 21; The tuning coil L that is serially connected
1With tuning capacity C
1Form resonant circuit.
In the practical application, tuning coil L
1Value be 0.01～0.3H; Tuning capacity C
1Value be 33.81～1014.24 μ F; And satisfy condition of resonance
Wherein, ω=2 π f, f is the fundamental signal frequency.
In the practical application, as the tuning coil L that is serially connected
1With tuning capacity C
1When forming the resonant circuit of fundamental signal, whole resonant circuit remains pure resistive; The value of voltage signal is zero in the syntonizing coil in resonant circuit and the transformer module 21, and this voltage signal is harmonic ringing.Syntonizing coil is induced to main coil with harmonic ringing, obtains first induced signal, that is, the value of first induced signal also is zero; Like this, main coil is induced to the extracting harmonic coil with first induced signal, obtains second induced signal, that is, the value of second induced signal also is zero.This shows; Tuning circuit carries out obtaining after the tuning processing harmonic ringing, first induced signal, second induced signal of null value to the fundamental signal that obtains from main coil induction; So just make the straightway band that is sent to of fundamental signal in the main coil carry harmonic source, and make the extracting harmonic coil to carry the each harmonic signal that harmonic source is passed to main coil by induction band.Tuning circuit does not produce resonance to the each harmonic signal from the main coil induction; Make harmonic ringing just be nonzero value; First induced signal, second induced signal that are obtained by harmonic ringing also are nonzero value; First induced signal plays inhibition to the each harmonic signal in the main coil, makes the each harmonic signal can't be passed to the band AC power.In a word, the present invention adopts simple fundamental signal resonant circuit, has realized the extraction and application of straightway transmission of fundamental signal and each harmonic signal.
Embodiment
Embodiment one Figure 10 is the composition structural representation of first embodiment of the invention.Shown in figure 10, in the single phase power supply system, first embodiment of the invention comprises single phase alternating current power supply, one group of three-winding transformer, a tuner module, and harmonic wave rectification circuit, filter circuit and band carry a harmonic source.The quality factor q of resonant circuit＞100 in the tuner module, thus harmonic current can more effectively be suppressed.For guaranteeing filter effect; Transformer module is except that satisfying rated power and rated voltage condition; The leakage impedance ratio that also should make static exciter impedance and first siding ring in the transformer module is greater than 100; Static exciter impedance Rm=15～25pu, Lm=15～25pu, the ratio of nth harmonic excitation impedance and first-harmonic leakage impedance will be above 100n.
Embodiment two Figure 11 are the composition structural representation of second embodiment of the invention.Shown in figure 11; In three-phase power supply system; Second embodiment of the invention comprises three-phase alternating-current supply, three groups of three-winding transformers, three tuner modules, and the three phase harmonic rectification circuit of being made up of three harmonic wave rectification circuit, filter circuit and band carry a harmonic source; Wherein, between the three-phase alternating-current supply be star connection; Three windings of three-winding transformer are respectively the main coil of primary side, the extracting harmonic coil of secondary side, syntonizing coil; Three main coil one ends in three groups of three-winding transformers are connected respectively to three-phase alternating-current supply, and the other end is connected to band and carries a harmonic source; Three syntonizing coils in three groups of three-winding transformers are connected to three tuning circuits respectively; Three extracting harmonic coils of three groups of three-winding transformers are connected into star connection, and an end of three extracting harmonic coils all links together, and the other end of three extracting harmonic coils all is connected to the three phase harmonic rectification circuit.Here, the three phase harmonic rectification circuit can be the controlled bridge rectifier of three-phase, also can be the uncontrollable bridge rectifier of three-phase.
In sum, more than being merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. fundamental flux tuning passive filtering and extracting harmonic device is characterized in that, said device comprises that AC power, harmonic filtration and extraction unit and band carry harmonic source; The live wire end of AC power is connected to the input of harmonic filtration and extraction unit through first live wire; The output of harmonic filtration and extraction unit is connected to the live wire end that band carries harmonic source through second live wire, and the zero line side of AC power is connected through zero line with the zero line side that band carries harmonic source; Wherein,
AC power is used for the fundamental signal that said AC power self produces is sent to harmonic filtration and extraction unit;
Harmonic filtration and extraction unit, the fundamental signal that is used to adopt tuning manner that AC power is sent is sent to band year harmonic source undampedly; Simultaneously, adopt tuning manner to extract band and carry the harmonic signal that harmonic source sends, and this harmonic signal is carried out harmonic wave rectification, Filtering Processing, to obtain direct current signal;
Band carries harmonic source, is used for the fundamental signal of harmonic filtration and extraction unit transmission is carried out offering load after the harmonic source rectification, simultaneously the harmonic signal that produces is back to harmonic filtration and extraction unit.
2. fundamental flux tuning passive according to claim 1 filtering and extracting harmonic device is characterized in that said harmonic filtration and extraction unit comprise transformer module, harmonic wave processing module and tuner module; The input of the first input end of transformer module through said harmonic filtration and extraction unit is connected to the live wire end of said AC power by first live wire, and first output of transformer module is connected to the live wire end that said band carries harmonic source through the output of said harmonic filtration and extraction unit by second live wire; Second output of transformer module is connected to the first input end of harmonic wave processing module; Second input of transformer module is connected to first output of harmonic wave processing module, exports direct current signal between second input of harmonic wave processing module and second output of harmonic wave processing module; The 3rd output of transformer module is connected to the input of tuner module, and the 3rd input of transformer module is connected to the output of tuner module; Wherein,
Transformer module; Be used under the control of the harmonic ringing that tuner module sends; The fundamental signal that said AC power is sent is passed to said band undampedly and carries harmonic source; The fundamental signal that said AC power is sent is induced to tuner module, and the harmonic signal that said band is carried the harmonic source transmission is passed to the harmonic wave processing module; The harmonic ringing that is sent by tuner module obtains first induced signal, obtains second induced signal according to first induced signal again;
The harmonic wave processing module after being used for the harmonic signal that transformer module sends carried out harmonic wave rectification, Filtering Processing, obtains direct current signal;
Tuner module is used for the fundamental signal that transformer module sends is carried out tuning processing, and the harmonic ringing that obtains is sent to transformer module.
3. fundamental flux tuning passive according to claim 2 filtering and extracting harmonic device; It is characterized in that said transformer module comprises as the main coil of transformer first siding ring, as the extracting harmonic coil of Circuit Fault on Secondary Transformer first coil, as the syntonizing coil of Circuit Fault on Secondary Transformer second coil; The first input end of the input of main coil through said transformer module is connected to the live wire end of said AC power by first live wire, and the output of main coil is connected to the live wire end that said band carries harmonic source through first output of said transformer module by second live wire; The output of extracting harmonic coil is connected to the first input end of said harmonic wave processing module through second output of said transformer module, and the input of extracting harmonic coil is connected to first output of said harmonic wave processing module through second input of said transformer module; The output of syntonizing coil is connected to the input of said tuner module through the 3rd output of said transformer module, and the input of syntonizing coil is connected to the output of said tuner module through the 3rd input of said transformer module; Wherein,
Main coil is used under the control from the harmonic ringing of syntonizing coil, and be sent to said band carries harmonic source to the fundamental signal that said AC power is sent undampedly on the one hand, is induced to syntonizing coil on the other hand; Harmonic ringing induction according to from syntonizing coil obtains first induced signal, and transmits first induced signal to the extracting harmonic coil; Also be used under control, said band carried the harmonic signal that harmonic source sends be passed to the extracting harmonic coil from the harmonic ringing of syntonizing coil;
The extracting harmonic coil is used for responding to second induced signal that obtains according to first induced signal of main coil, adopts induction mode to extract harmonic signal from main coil, and harmonic signal is sent to said harmonic wave processing module;
Syntonizing coil is used for obtaining harmonic ringing according to the fundamental signal from main coil, and harmonic ringing is passed to main coil; Also be used for the fundamental signal from main coil is passed to said tuner module.
4. fundamental flux tuning passive according to claim 3 filtering and extracting harmonic device is characterized in that, the ohmic leakage size of said main coil is 0.001～0.03pu, and the leakage inductance size is 0.001～0.01pu; Said extracting harmonic coil ohmic leakage size is 0.001～0.03pu, and the leakage inductance size is 0.001～0.01pu; The ohmic leakage size of said syntonizing coil is 0.001～0.03pu, and the leakage inductance size is 0.001～0.01pu.
5. fundamental flux tuning passive according to claim 2 filtering and extracting harmonic device is characterized in that, said harmonic wave processing module comprises harmonic wave rectification circuit and filter circuit; The first input end of harmonic wave rectification circuit is connected to second output of said transformer module, and first output of harmonic wave rectification circuit is connected to second input of said transformer module; Second output of harmonic wave rectification circuit is connected to the first input end of filter circuit, and second input of harmonic wave rectification circuit is connected to first output of filter circuit; Second output of filter circuit is as second output of said harmonic wave processing module, and second input of filter circuit is exported direct current signal as second input of said harmonic wave processing module between second output of filter circuit and second input; Wherein,
The harmonic wave rectification circuit is used for the harmonic signal that said transformer module sends is carried out harmonic wave rectification, convert harmonic signal into direct current signal after, be sent to filter circuit;
Filter circuit is used for the direct current signal that the harmonic wave rectification circuit sends is carried out filtering, with the pulsation of smooth direct current signal.
6. fundamental flux tuning passive according to claim 2 filtering and extracting harmonic device; It is characterized in that; Said tuner module comprises tuning coil and tuning capacity; One end of tuning coil links to each other with an end of tuning capacity, and the other end of tuning coil is connected with the 3rd output of said transformer module through the first input end of said tuner module, and the other end of tuning capacity is connected with the 3rd input of said transformer module through first output of said tuner module; Tuning coil that is serially connected and tuning capacity are formed resonant circuit.
7. fundamental flux tuning passive according to claim 6 filtering and extracting harmonic device is characterized in that, the value of said tuning coil is 0.01～0.3H;
The value of said tuning capacity is 33.81～1014.24 μ F.
8. fundamental flux tuning passive according to claim 5 filtering and extracting harmonic device; It is characterized in that; Said filter circuit comprises filter inductance and filter capacitor, and an end of filter inductance is connected to second output of said harmonic wave rectification circuit through the first input end of said filter circuit; The other end of filter inductance as second output of said filter circuit, is connected with an end of filter capacitor on the one hand on the other hand; The other end of filter capacitor connects second input of said harmonic wave rectification circuit on the other hand on the one hand as second input of said filter circuit; Export direct current signal between the end that the other end of filter inductance is connected with an end of filter capacitor and the other end of filter capacitor.
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