JPS63194579A - Pulsed high voltage power supply - Google Patents

Abstract

PURPOSE:To obtain an inexpensive and simple high voltage power supply, by a method wherein respective capacitors are charged in parallel with a DC high voltage power supply while the voltages of the capacitors are discharged to loads in series through a high speed switching element. CONSTITUTION:The electric dust collector 1 of high voltage load is equipped with a dust collecting electrode 2 and a discharging electrode while the dust collector 1 is connected to a DC high voltage power supply through an air-core coil 5. A pulse high voltage generating unit 10 is also connected between the discharging electrode 3 and the dust collecting electrode 2. In the high voltage generating unit 10, two sets of capacitors 16-17 of the array 15 of the capacitors are connected in series through a rotary spark switch 18 while respective capacitors 16-17 are provided with charging inductance elements 32-33 and diode elements 34, 35. According to this constitution, the capacitors 16-17 in the array 15 of capacitors are charged in parallel with the power supply 6. Then, a high speed switching element 18 is put ON to connect respective capacitors 16-17 in series and all of the charging voltages thereof is superposed to impress it on both terminals of the load 1.

Description

[Detailed Description of the Invention] Industrial Application Fields The present invention applies a periodic pulse high voltage with an extremely short duration to a DC high voltage to a crystal type load such as an electrostatic precipitator. This relates to pulsed high-voltage power supplies for I[tI, the pulsed high-voltage power supply of the present invention is applicable not only to electrostatic precipitators, but also to any high-voltage application equipment that needs to be driven by applying a pulsed high voltage superimposed on an Il'l flow high voltage; e.g., pulsed corona discharge. 11! S021) N02NO2,I, a flowing ozone generator that uses pulsed 210n discharge
A device for removing harmful gases such as lg, dioxins, and furans from combustion 1 north gases, or a device for making surface talkative of plastics using pulsed corona discharge: 4r, which is also used for η, etc.
I can do it.

I Conventional Technology] & eHigashi This type of power supply ζ applies a DC high voltage to a high voltage load such as an electrostatic precipitator using an independent 1 hour current high voltage power supply, and then superimposes it on top of it. Its own separate iI! f′f
Type 17 has been used, which applies a periodic pulsed high voltage to the high voltage load via a coupling capacitor from an independent pulsed high voltage power supply equipped with an L high voltage power supply.

1 While the present invention is trying to solve the problem, 1iff 11 b'C East technology is capable of applying not only a 1/+ current high voltage power supply for directly applying DC high voltage to the high voltage load, but also a pulse high voltage power supply. As for its configuration @A, there is a separate power supply with an output voltage of about 4, and a separate power supply with an output voltage of about 4, which makes the cost of the pulsed high-voltage power supply very high. There was a problem. The present invention solves this problem and provides a simple and inexpensive pulse for applying periodic pulsed high voltage directly superimposed on one high voltage to the electrostatic precipitator 'A: 6 and the various high voltage loads mentioned above. Its purpose is to provide a high voltage power source.

Means for Solving Problem E] The present invention provides a DC high rI power supply for supplying DC ρ1 voltage to the high voltage load (hereinafter referred to as 1Q) indicated in ``-''.
Simultaneously charge two or more capacitors in parallel through a charging impedance, then connect the charging voltage of all capacitors in series through a fast switching element, is being applied! A negative load is applied across both ends of the load, resulting in a 1/
"By applying a steep pulsed high voltage superimposed on the current high voltage, the number of DC high voltage power supplies to be used can be reduced to just 1
As -1, solve the problem listed below.

That is, the novel pulsed high-voltage power supply according to the present invention has a DC high-voltage power supply connected to the high-voltage load via a high-frequency current blocking element made of an inductance element such as an air-core coil for supplying DC high voltage to the high-voltage load. , at least 2111
It has a capacitor string consisting of capacitors I and J connected in parallel through a high-speed switching element between each capacitor and a high voltage load, and two capacitors at both ends of the capacitor string.
1Ill capacitors each connect the connection point with the high-speed switching element t to the connection point with the high voltage load of the capacitor at the opposite end via a charging impedance, and
The capacitors in the middle of the capacitor array are connected at both ends to the two connection points between the capacitors at both ends and the voltage load to the voltage load through their respective charging impedances. After being charged in parallel by a voltage source through their respective charging impedances, all high-speed switching elements are turned on at 1.1 o'clock, thereby applying the charging voltage of the light capacitor in series to both ends of the 11 high-voltage loads, Thereafter, this operation is repeated Ii periodically to apply a period+1 target pulse high voltage to the high voltage load by superimposing it on the high voltage fIi.

In this case, all of the ultra-high-speed switch elements may be self-destruct high-speed switch elements that automatically turn on at an overvoltage of 1-1 or more, such as a spark switch element consisting of a pair of spark electrodes. In this case, when the charging voltage of the capacitor exceeds the first overvoltage, all self-destructive high-speed switching elements are turned on. Alternatively, at least one of the two-speed switching elements is an externally controlled high-speed switching element whose on operation can be controlled and set from the outside, m is a self-destructing type high-speed switching element, and the externally controlled high-speed The switch element may be turned on periodically by an external operation, and other self-destruction or high-speed switch elements -f may be turned on at 111 o'clock each time. In this case, when the high-speed switching element turns on the external control, II! All suicide bombings of l,
f: Overvoltage is generated in the 1st speed switch element and it becomes "1" which automatically turns on everything.

The external f, II m'? I As a high-speed switching element, an appropriate fEE is suitable as long as it starts an on operation at a preset time point in a predetermined pulse crystal cycle. For example, you can use a thyristor element that is turned on by an external trigger signal, a TO element (-, a FET switching element, and a Q-conductor switch element, or an electric current).
You may use a discharge tube equipped with a trigger type f electrode such as an R tube or a hydrogen thyratron, or you can use a G2I11 type spark switch element to turn on by generating a spark by external operation. Good too. Examples of such externally controlled spark switch elements include, for example, a three-point spark switch that is equipped with a trigger extraction electrode and that triggers a spark by applying a trigger voltage to it, and a laser that triggers the fire 7L by ionization by laser irradiation. Trigger-type spark switches, etc., which are turned on by external trigger operation, are connected to a spark switch or a pair of fixed electrodes, and between them En1 is rotatably insulated and rotated immediately by a tu motor. It is composed of a rotating ta electrode body consisting of a plurality of ln1 rotary poles supported on the L and L, and sparks are generated only when the rotary electrode body rotates and the fixed electrode and the rotating B pole approach each other. There are rotary spark switches, etc. that operate by generating .

Also, as charging impedance, inductance element,
Any resistive element may be used, but when an inductance element is used, the inductance is required when charging each capacitor from a voltage source. Charging due to transient vibration, ll1I, so-called resonance charging is performed, and the charging loss is reduced by 4 times, which is a good result. In this case, when connecting diode elements j''- to the inductance element in a row with the charging direction of the DC high-voltage power source of the capacitor being the conduction direction, the capacitor that has been made light 1 by the above-mentioned resonant charging. The peak value of the voltage is maintained as it is, and the voltage of each capacitor is generally higher than the DC high voltage of the DC high voltage power supply, and the connection IA
The maximum pulse output zs pressure can now be obtained.

111' River 1 Hereinafter, the effect of the present invention will be described as its output pulse crystal type 1 red wave IFj
This is explained by the 11th "4" which shows llj L l
+F1 diagram shows the voltage I when using a negative 1ffft high voltage.
The I-waveform is shown, with Vo=-V.

Of course 1. Each of the capacitors forming the capacitor row:
are charged in parallel by the high-voltage power supply through their respective charging impedances, and the voltage Vc of all capacitors is the output 1i1 current, 1 voltage Vo of the DC high-voltage power supply.
= Vc equal to or higher than −−V
At the 0th time point 1 when = -Ve (during resonance charging) is reached, all of the high-speed switching elements are turned on at the same time, and the photoelectric voltages of each capacitor are all superimposed in series through them, and Vc A pulsed high voltage with a full wave peak value NVc multiplied by the number N of capacitor elements is generated across the capacitor string, which is applied to the M end of the voltage load to note i. At this time, what about the above high frequency current blocking element? Therefore, the DC high voltage Xr! of this pulsed high voltage is The intrusion into the h source is prevented, and at the on point Ll, Vp=NVc-\/f
A pulse high voltage having a peak value of 1 is applied to both ends of the 2&high-U positive load in the form of 1rr multiplied by the DC voltage vO.

The voltage waveform at this time is as shown in the same figure, and the direct rM voltage V is a sawtooth wave of the leading peak value Vp with one cycle being the period T=t/1-Ll of the pulse high voltage.

= -Based on the one superimposed on V, the 'JA tooth-shaped wave leading wheel] - extremely high frequency high frequency 'JQ
The details of this will be explained in relation to the 214th chapter in Hajime. The first half-wave of this high-frequency vibration has a time width of about 1 microsecond, and this part exhibits the same effect as pulse charging by extremely sharp pulsed AtIF, and is essentially a pulsed high voltage (
Until).

In this case, when three or more E capacitors are used in the capacitor string, the capacitors other than the capacitors at both ends are connected to a total of two charging impedances rLFl, one at each inner end, and these are It is necessary to connect each terminal to both ends of the high voltage load.

1 Implementation PAF No. 2I7I is a circuit diagram showing one embodiment of the present invention. In this example, l is a high voltage load.In this example, the dust collecting electrode 2 is grounded, and the discharge electrode 3, which is insulated and supported from this, is connected to a conductor 4. It is connected to the negative output terminal 7 of the DC high voltage power supply 6 through the air-core coil 5 (inductance Ll), and a 1/1 current high voltage -■ of El is applied, and the positive output terminal 8 of 0 is Grounded. 1 (J is the pulse high voltage generating section according to the present invention, and its high voltage side output terminal 11 is connected to the 49 wire 1
2 to the discharge electrode 3.

The ground side output end r13 is connected to the dust collection electrode 2 via the conductor 111.
It is also grounded. Reference numeral 15 denotes the capacitor series already mentioned, which is composed of two capacitors 16 and 7 connected in series via a rotary spark switch 18.

19.20 are the fixed electrodes of the 3&I++1 spark switch 18, which are connected to the capacitor 1 via connection points 21.22, respectively.
6.17 is connected. 23 is an insulating disk rotatably supported by a rotating shaft 24 arranged in seven rows on an imaginary axis connecting the fixed electrodes and 20, and the peripheral edge of 23 fits into the gap 19. At a symmetrical position, an electric motor 11 (directly passing through the circular plate 26) is arranged. , the rotating electrode 25.2() of the IC 11 is caused to pass through the gap between the constant electrodes 19, 20, and each time a spark is generated, the rotating flame is
:Turns on the switch 18. The other end 28.20 of the capacitor 16.17 is connected to the high-voltage output end T-11. through conductors 30.31, respectively. It is connected to the ground side output terminal F13. 32.3 people 16.1
The inductance element 7 is connected in series with the diode element 34.35 at the connection points 21 and 29.22.
and 30. The six directions of 3.l, 35 are two sets C (the capacitor 1 (i,
The dynamic fi: of the power supply in the 0-wire example, which is the charging direction of 17, will be described next. First, when the H spark switch 18 is off (the fixed electrodes 19, 20 and the rotating electrodes 25 and 26 are separated), the =I inductors 16, 17 are connected to the respective charging inductance elements 32, 33, . They are charged in parallel by the DC high-voltage power supply 6 via the diode elements 33 and 34 and the air-core inductance 5. In this case, the capacitor 16.
17 is charged (resonant charging) by overM vibration due to the presence of the respective charging inductance elements 32 and 33, so the charging loss is extremely small, and the diode elements 34 and 35 ((
As a result, the charging voltage Vc of each capacitor is held at the peak voltage Vc-=-Ve of the transient oscillation, which is higher than -■.0 Next, when the rotary spark switch 18 is turned on, both capacitors 16 and 17 are charged via 18. Connected in series, the respective voltage phase 2Vc=-2Ve appears between the output terminals 11.13, which is collected via the conductor m12.14 with the discharge electrode 3, which is already charged to the negative high DC voltage -V. It is applied between the dust electrodes 2. Therefore, between 3 and 2, a negative pulse high voltage VP= (2Ve-V
) is applied, and a voltage waveform like 112il (N=2> appears. That is, at time t1, the 31111 rolling spark switch 18 is turned on, and at this moment, the discharge electrode 3 and the dust collection electrode 2, a pulse high voltage with a peak value close to 2VC=-2Ve is instantaneously applied, and superimposed on this,
Total circuit capacity Ct, (capacitance 1 of capacitor 16.17
ick, C2, series capacity of interelectrode capacitance C'e between discharge electrode 3 and dust collection electrode 2), and total circuit inductance Lt
(Series inductance of each inductance of the spark switch 18 and the conducting wires 30, 12, 14, 31) A high frequency transient damped vibration occurs due to series resonance. This vibration has a frequency of about 1000kHz and is extremely attenuated at one point t,
2 (approximately 0.1 milliseconds after tt), but a strong pulse-like corona discharge occurs at the discharge electrode 3 only at the peak of the first half-wave, and the negative ions of personnel are noticeably deposited on the surface of the discharge electrode. will occur. Since the space charge of this emitted negative ion is so large, corona discharge does not occur after the next vibrational peak due to its static shielding effect on the discharge electrode.

As a result, the peak of this transient vibration at the beginning of the ship is the total wave height -2
Ve, a very short pulse with a pentavalent hearing width of about 1 microsecond, exerts a pulse charging effect on a high voltage load that is completely equivalent to a voltage. In this case capacitor I (
The discharge current through the co-rotating spark switch 18 of J and 17 is blocked by the large impedance of the charging inductance 32 and 33 against high frequencies, at least for a short period of time until 18 is turned off, and almost no current flows, and the discharge current is not collected from the discharge electrode 3. The pulsed corona current due to n ion transfer to the dust electrode 2 is too small to maintain the spark switch 18 at a constant temperature, so 1
- The high frequency over M vibration described above is extinguished and the arc heating effect due to the high frequency current stops +1-1. Immediately at time L2, the arc is also IJI and the rotation hole/I1. The switch 18 is turned off, and the supply of current from the pulse high voltage generator 10 to the electrode 3.2 is cut off. A large one caused by a pulsed corona discharge!
After this, the harmful negative ions continue to move from the discharge electrode 3 toward the dust collection electrode 2. Due to the accompanying large pulsed ion current, the charges stored in the interelectrode electrostatic field jIIce between 3 and 2 are discharged at a speed of
decreases rapidly, and the movement of -I2 negative ions is completed at point L3 (
A few milliseconds after t2), the rapid drop in voltage (2) ends. After that, V continues to slowly decrease due to normal DC negative corona discharge, and V approaches the original DC voltage -■, reaching the next ON point of the 1-turn spark switch 18, 4.
The above operation is repeated. In this case, the air-core coil 5 presents a large impedance to the high-frequency oscillating voltage, and this causes an obstruction! The high-frequency oscillating voltage does not enter the DC high-voltage power supply 6, and due to the effect of this impedance, a pulse voltage close to the full-wave peak value -2■e appears between the electrodes 3 and 2 without any drop. Moreover, after the high frequency oscillating voltage disappears, the overvoltage during the period t2-L3 cannot be prevented by the air core coil 5, but since the change is slower, the rectifier inside the II'I high voltage power supply can prevent the overvoltage. As soon as the rotary flame 7E switch 18 is turned off at time t2, when it can be blocked for 1 minute and there is no way to destroy it, the photoelectric inductance 32
．． 33 and the diode 34.35, charging of the =1 capacitor 16.17 starts, but in the case of completion, the inductance I/(Ll, L
2, the capacitance of the Ji capacitor +, +-ct, and the period of transient vibration determined by c2 'r'1. If 'r2 is large, it takes a long waiting time for resonance charging. 1! Station i starts charging just before time L5. On the contrary, I'1. T”2 is time (t, 3-1
2>, the amount and fraction is smaller than that of electrode 2 at time L2.
．． A relatively high tu charged in the capacitor Ce between 3
People's capacitors 16.1 with resonant charging due to transient oscillations of pressure Ce-1,-1-CI and Ce-Ll-CI
7, and the pulse waveform becomes very steep as shown in FIG. Along with this, when pulses are applied from the capacitors 16 and 17, the electrodes are the same! The town's portion of the suspicious energy supplied to 11Ce will be collected by FI11 on 16.17, making the energy efficiency extremely high. In this case as well, the diodes 34 and 35 play the role of holding the peak of the two reverse charging voltages.

In this example, both or one of the charging impedances 32 and 33 is made variable, and is increased to increase the time constant RT1. If both or one of T2 is made larger than 1/3 of the pulse period "1", one or more of the capacitors 16 and 17 will not be charged to 12 even when the next trigger point t4 is reached.
The output voltage of the pulsed high-voltage power supply will be smaller than -2.

Therefore, by adjusting both or one of Ll and L2 to be larger than the corresponding value above, the total 'f' of the pulse voltage I3:
! L high value Vp is variable within the range of -2V or less.
It becomes possible. In this case, a fixed or variable charging resistor may be used instead of the charging inductance.
Ha goes around until 3. In addition, in the case, 1 redior l; 34
．． 35? ? It is possible to omit °1t, but at this time light',
The photoelectric voltage of the =1 capacitor 1(), ]7 of kIIIF is increased by 1 or more by 1. Also, rotating spark switch y-) 1 Instead of H, IE, H externally controlled high-speed switching element-2 or] ^1 Self-destruction of constant spark switch, etc. 1'! A high-speed switching element ■' may also be used.

The 414th fixes the first =1 densityer 3G between the =1 densityers 16 and 17 at both ends of 2114? 137
．． This is an example in which the capacitor array 15 is constructed by inserting the self-destructing spark switch 38 consisting of 3 self-destructive spark switches and the L simultaneous spark switch 18, for a total of 3 capacitors. =36 is a charging inductance element 42.4" inserted between both ends 40.41 and the connection point 28.2, and diode elements -44 and /15 are connected to the capacitor 36, respectively. -
They are connected in series with the charging direction by the C source 6 being conductive. In this way, if the number of medium 1n+ capacitors is 1111 in a tree row, then -[regardless of whether the barrel is
Both ends of people and both ends of the high voltage DC power supply 6 r7.8
Each two charging impedances inserted between
It goes without saying that 1t, which cannot produce light tu without polarization, is 0
What about the elements numbered l to 35 in the diagram? The + name and the key are the same as those of the 1st and 1st numbered elements in the 21st J. j! [[+1 When the spark switch 18 is turned on, the sum of the charging type rh of capacitors 17 and 16, that is, the voltage of 2Vo is applied between the identification electrodes 37 and 38 of the self-destructing spark switch 39, and 39 instantly and automatically Turn on. Since xyaa of the pulse high voltage generation operation that follows this is obvious. Omit 凭明.

No. 5121 is another embodiment of the present invention, in which, in place of the rotary spark switch 8 in the embodiment shown in FIG. A three-ignition spark switch 50 consisting of a power source 49 is used, and a light source is used instead of the charging impedance 32,33.
Using resistors '51a and 5lb for 51a, and in series with 51a, FI-:1'
A charging current control element 54 consisting of 3 is inserted to form a pulse output type j to υ1... element. The names and functions of elements 1 to 631 in No. 14 are 1 in No. 214.
14 is the same as that of the numbered element 0 In this example, the 1/
When the capacitors Ib and 17 are charged by the + current high voltage power supply 6, 16 is charged via the charging resistor 51 and the charging current V+11 element "i4", and 17 is charged via the charging resistor 52. The photoelectric speed of 17 is determined by the value of the charging resistor 52, but the charging speed of 16 can be freely controlled by the charging current f, II control element 54. 1
The charging type C of () can be freely adjusted within the range of V o L'11-, and the pulse output Jl voltage can be freely adjusted within the range of Vo to 2VO. The pulse high voltage generation operation of this embodiment is as follows. Since there is basically no difference from that shown in FIG. 2, the explanation thereof will be omitted.

When the external control used in the present invention is a high-speed switching element, for example, when using an element 55 such as a thyristor that has a rectifying property of tI, a diode element is connected in parallel to it as shown in No. 6 [A(a), (1)). 7-56, and 5 further connect an inductance element 57 in series with the above parallel connected element as shown in L4 (a), or in line with the branch of the diode element 56 as shown in figure (b). The capacitive energy stored at electrode 2.3 during pulse application is [40+'
If a is collected into a condenser by shaking 9, it is possible to collect it in a condenser.

It goes without saying that in No. 6171, a trigger-height I/H switch or a trigger-heavy/H switch or the like may be used in place of the thyristor element 55.

Also, between the connection point 28 and the pole 3, or the connection point 29
Interposed between the electrode 2 and the 5AI% electrode 2, a suitable charging current control element consisting of a 71st m(a) variable charging inductance, ti) variable charging resistance, and a solid-state element having a power control function. A pulse output voltage control element 60 is inserted in which a high-speed switcher element 59 is connected in parallel with a high-speed switcher element 59 that allows conduction only in the discharge direction when the capacitor array is discharged.
It is possible to freely control the pulse output voltage by controlling the charging speed of each capacitor in the capacitor array, thereby changing the charging voltage at the time of series discharge of each capacitor. In this case, when the capacitor is discharged in series, the discharge current instantly flows through the high-speed switching element 5.
Since the current flows through the charging current control element 5, the 7th N(tI) does not cause any hindrance to its discharge operation.
8, a variable inductance element 61; a high-speed switch f, which allows conduction only in the discharge direction when the capacitor string is discharged; and a trigger 11', which triggers a spark in synchronization with the series discharge of the capacitor string, as a child 59; A spark switch 62 is used to configure the pulse output voltage control element 60 in item 1-. In this case, a diode element 63 is connected in series to 61 with the charging direction of each capacitor by the power supply 6 as a conductive horn, and this first column-connected element is connected to 62 in parallel. In this case, a trigger signal is applied to 62 when the capacitor is discharged in series, and 62 instantaneously produces a spark and turns on. Also, when charging the capacitor, J
The existence of a uf variable inductance element (F) causes resonant charging of each capacitor due to transient vibration, which not only greatly reduces charge loss, but also reduces the amount of energy stored between electrodes 2 and 3 when a pulse voltage is applied. JJ sex energy 1
-1 harvest will also be held. Also, due to the presence of the diode element, the charging voltage of each capacitor is held at the peak value of the transient oscillation, and the value increases.

Effects of the Invention 1 The present invention has a DC high voltage power source 6 that supplies a DC high voltage Vo to an electrostatic precipitator and other high voltage loads 1 as described above, and 21111 or more capacitors constituting a capacitor array are connected to each other. By discharging the capacitor voltage in series toward the load 1 via a high-speed switching element, a pulsed high voltage superimposed on the DC high voltage ■0 is applied to the load 1. This has the advantage of not requiring a separate DC high voltage power supply for charging the pulsed high voltage source capacitor, making the pulsed high voltage power supply extremely cheap and simple. In addition, by using an inductance element as a charging impedance element for the capacitors mentioned above, resonance charging can be used for parallel charging of each capacitor, greatly reducing charging loss and increasing charging energy efficiency. , I can do it. Furthermore, by inserting a diode element in series with this charging inductance and performing resonance charging of the capacitor through this, the charging voltage of the capacitor can be held at the peak value of the transient oscillation during resonance charging, and the charging voltage can be made lower than VO. It is convenient because it can be made high. In addition to this, the pulse output voltage can be easily adjusted by controlling the charging current during parallel charging of the capacitors using a pulse output voltage control element consisting of a capacitor charging current control element. In addition, by utilizing the peak voltage of the i-wave of the LC transient high-frequency vibration with a time width of about 1 microsecond when the high-speed switching element is turned on for pulse charging, extremely steep and short-width pulse high voltage can be generated. An extremely excellent pulse charging effect, similar to that obtained when using , can be obtained.

1114 I! ? iQt Description No. 114 shows a typical voltage waveform appearing between the electrodes of the aerosol device during the pulse of the present invention; 11th path 14 of the embodiment, the third tlI is an electrostatic precipitator:
No. 4171 and No. 51'N showing typical electric waveforms appearing between the superelectrodes when the capacitance energy stored during application of pulsed high voltage between the electrodes is recovered to the =I capacitor by the LCC transient force. Figure 6 shows a circuit diagram of another embodiment of the present invention, Part 6] (a) and (b) shows the circuit 14 of an externally controlled high speed switching element 1 which uses a thyristor and simultaneously performs the above energy recovery. show,
71'll +), (L+1 respectively shows the principle 1'7I and i (interbody circuit 14 of an example of the pulse output voltage control element, [4 in v-m-load voltage IE
+2. +4-conductor 1--electrostatic precipitator
15-11 Capacitor row 2--- Dust collection electrode
+6. +7.3G~Contensor 3---
- Discharge electrode 18-11 rotary spark switch 4.9. +2.14.30.31-Conductor +
9.20.37.38.46.47-Fixed electrode 5-11 air core, inductance 21,22.28,29,4
0.41-Connection point 6i voltage DC power supply 23--
--Insulation disc 7, --Output terminal 24-
--Same" rotational axis 10-m-Pulse high pressure generation part 2
41.26-rotating electrode H, +3-times 1. Output terminal
27-----Electric motor 32.33.42.43
53--1+ for Kamikawa-1-circuit--
--Charging inductance 54--Charging current control element 34.3!1, 44, 45.5G, 63
55 --- Thyristor --- Diode cable 7'
57---Inductance element 39---Self-destruction η
1 spark switch! +L---Charging section current control element 4
8- -Auxiliary electrode for trigger! +9---High-speed switch element 4'1l---Trigger river pulse 6
0----Pulse output voltage power supply
a, lI type element 50--3 ignition spark switch
61---, M (variable inductance element 51.52
= Charging Il (anti-G2-1--Trigger type spark switch 52--FI': i' element row -1°V---11 Charging c) 32.33.
42.431--Electrostatic precipitator sAi---
Charging inductance 2---'41XCM+
34.35.44.4S, 56.633--
-Discharge electrode---Diode, #
f4.9. +2. +4.30.31-Birch! II
119---1'l explosive spark switch Ichi 5----Kuya 1 inductance 48---- Trigger sleeve auxiliary electrode 6--- +ff1llV (current current jll 4
Q-1・') n -kawa/<JLX7--141 out 11
End f--Electric H, In 41 Output end 1' 5G--Ignition switch +2. +4 - conductor 11
51a! +lh-charging resistor 15-capacitor string! +2- -1'l>T element-'A1G17
-Capacitor b3--Toll-gate
1.Circuit 18- One rotation spark suinochi 5to-
- Hikate u Denshi familiar f book 19.20.37.38.4G,
47 5! l --Thyristor-(^l
Constant electricity i4i! +7---Inductance element 21.22.2a, 29.40.4+58---
Light: Visit Git2-Taste m□at element---Connection point
59---High speed suinochi! ? 23 - Insulating disk Go - Pulse output car L 24 -
-11111 Rotation axis control element 25
．． 2G -1ol inversion'414i 6+-
---1+ra in! 79th e element 27---:-Motive 62---Trigger 1'I fire? Jade l-o 6 figure off 0

Claims (33)

[Claims] (1) It has a high-voltage DC power source that is connected to a high-voltage load through a high-frequency current blocking element consisting of an inductance element and supplies high-voltage DC to the high-voltage load, and has at least two capacitors interposed between each high-speed switching element. The two capacitors at both ends of the capacitor array connect the high voltage of the capacitor at the opposite end via a charging impedance to the connection point with each of the high-speed switching elements. The capacitors in the middle of the capacitor array are connected to the connection point between the capacitors at both ends and the high voltage load through respective charging impedances, and each of the capacitors is After being charged in parallel by the DC high-voltage power supply through their respective charging impedances, all the high-speed switching elements are turned on simultaneously, thereby applying the charging voltage of each of the capacitors in series to both ends of the high-voltage load, A pulsed high-voltage power supply characterized in that this operation is repeated periodically to apply a periodic pulsed high voltage to the high-voltage load superimposed on the DC high voltage. (2) In the device according to claim (1),
A pulsed high-voltage power supply characterized in that all of the high-speed switching elements are self-destructing type high-speed switching elements that automatically turn on in the event of overvoltage. (3) In the device according to claim (2),
A pulsed high-voltage power supply characterized in that the self-destructing high-speed switching elements are self-destructing spark switches each comprising a pair of spark electrodes. (4) In the device according to claim (1),
A pulsed high-voltage power supply characterized in that at least one of the high-speed switching elements is an externally controlled high-speed switching element whose ON operation can be controlled and set from the outside. (5) In the device described in claim (4),
A pulsed high-voltage power supply characterized in that the high-speed switching elements other than the externally controlled high-speed switching element are self-destructing high-speed switching elements that automatically turn on in the event of an overvoltage. (6) A pulsed high-voltage power supply according to claim (5), wherein the self-destructing high-speed switching elements are spark switching elements each comprising a pair of spark electrodes. (7) In the device according to any one of claims (4) to (6), the externally controlled high-speed switching element is provided with an external control capable of externally controlling and setting an ON operation due to spark generation. A pulse high voltage power supply characterized by a type spark switch element. (8) The device according to claim (7), wherein the externally controlled spark switch element is a trigger type spark switch element that can trigger a spark by external operation. . (9) A pulse high-voltage power source in the device according to claim (8), characterized in that the trigger type spark switch element is a three-point spark switch element equipped with a trigger auxiliary electrode. (10) In the device according to claim (8),
A pulse high voltage power supply characterized in that the trigger type spark switch element is a laser trigger type spark switch element that triggers a spark by laser irradiation. (11) In the device according to claim (7),
The externally controlled spark switch element consists of a pair of fixed electrodes and a plurality of rotating electrodes disposed on a rotor which is rotatably supported and insulated between them and driven by an electric motor. A pulsed high-voltage power source characterized in that it is a rotary spark switch that is turned on by spark generation due to the proximity of the fixed electrode and the rotating electrode. (12) In the device according to any one of claims (4) to (6), the pulsed high-voltage power supply is characterized in that the externally controlled high-speed switching element is a solid state switching element. . (13) In the device according to claim (12), the solid state switching element is a thyristor, GTO, FET.
, a pulsed high-voltage power supply characterized by being one of transistors. (14) A pulsed high-voltage power source in the device according to any one of claims (4) to (6), characterized in that the externally controlled high-speed switching element is an electron tube. (15) In the device according to any one of claims (4) to (6), the externally controlled high-speed switching element is a discharge tube equipped with a trigger grid electrode. Features a pulsed high voltage power supply. (16) A pulsed high-voltage power source in the device according to claim (15), wherein the discharge tube is a hydrogen thyratron. (17) A pulsed high-voltage power source in the device according to any one of claims (1) to (16), characterized in that the charging impedance is a charging inductance element. (18) A pulsed high-voltage power supply in the device according to any one of claims (1) to (16), characterized in that the charging impedance is a charging resistance element. (19) The device according to claim (17), wherein the charging inductance element is a variable inductance element. (20) In the device according to any one of claims (17) or (19), the direction in which the capacitor is charged by the DC high voltage power source is connected in series with at least one of the charging inductance elements. A pulsed high-voltage power supply characterized by inserting a diode element with the conduction direction as . (21) The device according to claim (18), wherein the charging resistance element is a variable resistance element. (22) In the device according to any one of claims (1) to (21), an element for controlling the charging current of the capacitor that intervenes between the capacitor string and the high voltage load. A pulsed high-voltage power supply characterized by inserting a pulse output voltage control element consisting of a parallel connection of a high-speed switching element that only allows conduction of current in the opposite direction to the charging current. (23) A pulsed high-voltage power supply in the device according to claim (22), wherein the charging current control element is a variable resistance element. (24) The device according to claim (22), wherein the charging current control element is a variable inductance element. (25) The device according to claim (22), wherein the charging current control element is a solid state element having a current control function. (26) A pulsed high-voltage power supply in the device according to any one of claims (22) to (25), characterized in that the high-speed switching element is a spark switch. (27) A pulse high voltage power supply in the device according to claim (26), characterized in that the spark switch is a trigger type spark switch that can trigger the initial spark of the spark from the outside. (28) In the device according to any one of claims (1) to (27), a pulse output voltage control element comprising a charging current control element in series with at least one of the charging impedances. A pulse high voltage power supply characterized by the insertion of a. (29) The device according to claim (28), wherein the charging current control element is a solid state element having a current control function. (30) In the device according to any one of claims (1) to (29), intervening between the capacitor array and the high voltage load, A diode element whose conduction direction is the parallel charging direction of each capacitor is connected in series with an inductance element, and a high-speed switch element that only allows conduction of current in the direction opposite to the conduction direction of the diode element is connected in parallel to this series-connected element. A pulse high-voltage power supply characterized by the insertion of an energy recovery element consisting of a (31) A pulsed high-voltage power supply in the device according to claim (30), wherein the high-speed switching element is a spark switch. (32) In the device according to any one of claims (1) to (31), the capacitor is connected in parallel to all the high-speed switching elements including the externally controlled high-speed switching elements. A pulse high-voltage power supply characterized in that diode elements are connected in a conduction direction opposite to that of series discharge, and an inductance element is connected to at least one of the parallel-connected elements and a capacitor connected to the parallel-connected element. (33) In the device according to any one of claims (1) to (31), the capacitor is connected in parallel to all the high-speed switching elements including the externally controlled high-speed switching elements. A pulsed high-voltage power supply characterized in that diode elements are connected in a conduction direction opposite to that of the series discharge, and an inductance element is connected in series to the diode element in at least one of the parallel connected elements.