CN1021532C - Bridge-type semi-(full-) wave rectifying circuit - Google Patents
Bridge-type semi-(full-) wave rectifying circuit Download PDFInfo
- Publication number
- CN1021532C CN1021532C CN 89100898 CN89100898A CN1021532C CN 1021532 C CN1021532 C CN 1021532C CN 89100898 CN89100898 CN 89100898 CN 89100898 A CN89100898 A CN 89100898A CN 1021532 C CN1021532 C CN 1021532C
- Authority
- CN
- China
- Prior art keywords
- tap
- rectifying
- phase
- devices
- rectification
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Rectifiers (AREA)
Abstract
The present invention relates to a bridge type semi-(full-) wave rectification circuit which is mainly a basic electric power conversion circuit for combining two basic controllable rectification circuits of a bridge type and a half-wave type to generate a great lot of high performance. The present invention solves two problems (low power factors for deep control, and heavy pollution to electric networks of harmonic waves) which are difficult to solve for a long time of controllable rectification equipment. The present can be applied to various rectification equipment and controllable rectification equipment, and are used for enhancing the utilization ratio of rectification devices and transformer rectification windings of the rectification equipment, enhancing power factors and rectification efficiency and reducing harmonic voltage and the interference of the harmonic waves to the electric networks. Thus, the present invention not only can be used for single-phase equipment, but also can be used for three-phase equipment.
Description
The present invention relates to a kind of controlled rectification circuit.
Have only half-wave (comprising two half-waves) and two kinds of fundamental types of bridge-type no matter existing controlled rectification circuit is single-phase or heterogeneous, they only just have an optimum power factor point existing controlled rectification circuit when maximum output voltage, the voltage of output is low more, the power factor of rectification circuit is low more, output current is more little, and harmonic voltage is also big more.
" the half-wave controlled rectification circuit is primarily characterized in that the electric current that flows through in the rectification winding is unidirectional; and controlled bridge rectifier circuit is characterized in that the electric current that flows through in the rectification winding is a twocouese; and be positive and negative symmetry ", the controlled rectification circuit that two kinds of controlled rectification circuits of bridge-type and half-wave are creatively combined is called bridge half-controlled rectification circuit (following identical), it is characterized in that the electric current that flows through in the rectification winding is a twocouese, and be positive and negative asymmetric, it has a plurality of optimum power factor points.
Disclose the single-phase bridge half-controlled rectification circuit of part in the CN87105504A patent announcement, it has two optimum power factor points.One another is at 50% output voltage point at the maximum output voltage point, and they are all fixed, and can not be according to actual needs the position of the optimum power factor point in the range of regulation be changed flexibly.No matter single-phase in actual applications or heterogeneous controlled rectification circuit is to wish " in range of regulation " optimum power factor point design at 70%～80% maximum output voltage value (rectifying device often the magnitude of voltage of use near) eventually, and wishes that optimum power factor point can be from motion tracking pressure regulation value.
Three phase full bridge controlled rectifier with one or two centering diode is the three-phase bridge half-controlled rectification circuit that known three-phase bridge combines with half-wave, it can only be applied in the three phase full bridge controlled rectifier that transformer secondary output is Y-connection, is the three-phase controlled rectifier circuit that triangle connects and can not be used for secondary.
The purpose that the present invention is one is to provide a kind of High Power Factor and high efficiency, the controlled rectification circuit that harmonic wave is few.
A further object of the present invention is to be provided at the controlled rectification circuit that two or more optimum power factors working point is specifically arranged in the range of regulation.
To achieve these goals, the invention provides a kind of being used for to convert single phase alternating current (A.C.) to galvanic single phase-controlled rectification circuit, it comprises:
A transformer, its elementary winding is used to be connected to an AC power, and its secondary winding has odd number of taps,
In a plurality of rectifying devices, described a plurality of rectifying devices comprise:
A plurality of first rectifying devices.Each device has a conducting state and not on-state, and its anode all connects one first output, and its negative electrode is used for connecting respectively the tap of described secondary winding.
A plurality of second rectifying devices, each device has a conducting state and not on-state, and its anode is used for connecting respectively the described tap of described secondary winding, and negative electrode all is connected to one second output.
Wherein, tap connects described first rectifying device, or second rectifying device, perhaps both.
Above-mentioned a plurality of first and second rectifying devices should be controlled so as to second rectifying device conducting simultaneously that makes at least one first rectifying device that connects certain tap with certain electromotive force have high potential at least one connection, thereby make the electrical potential difference between above-mentioned two taps of output between described first and second outputs, by selecting to be connected at least one first rectifying device and at least one second rectifying device in the different taps and making their conductings simultaneously, perhaps change their ON time, output different value on described first and second outputs but the commutating voltage of identical polar is arranged.
From the summary of front, it will be appreciated that, the invention provides a kind of have two and two above optimum power factor working points, the single-phase or heterogeneous controlled rectification circuit that harmonic wave is little.
Consult following detailed description in conjunction with the accompanying drawings, will hold very much and be familiar with above-mentioned purpose of the present invention apparently, and many advantages of the present invention, wherein:
Accompanying drawing 1～8th, the embodiment circuit diagram of single-phase bridge half-controlled rectification circuit of the present invention and their corresponding output voltage oscillograms.
Fig. 9～10 and 12～16th, three-phase bridge half-controlled rectification circuit embodiment circuit diagram of the present invention.One of floating-point three-phase half-wave controlled rectifier circuit shown in the accompanying drawing 17.Accompanying drawing 11 is a kind of band interphase reactor six phase half wave rectifying circuits.
Accompanying drawing 1c is one of accompanying drawing 1a bridge half-controlled rectification circuit output voltage waveform under pure resistor load, wherein α
1, α
2α
7And α
8Be respectively controllable silicon kp
1, kp
2Kp
7And kp
8Phase-shift control angle, u
1, u
2, u
3And u
4Be the magnitude of voltage between four taps of transformer rectification winding.Rectification winding the right is for just, and the left side is shown in 0～π interval for negative controlled rectification voltage waveform, and the rectification winding left side is for just, and the right is that the controlled rectification voltage waveform of bearing is shown in π～2 π intervals.In order to obtain good control voltage adjustment characteristic, the relation between each pilot angle generally should satisfy the α shown in accompanying drawing 1c
1≤ α
3≤ α ,≤α
7And α
2≤ α
4≤ α
5≤ α
8, perhaps α
1≤ α
5≤ α
3≤ α
7And α
2≤ α
6≤ α
4≤ α
2Requirement, and be preferably in last pilot angle and be adjusted to after the minimum value, back one pilot angle is adjusted to minimum value by maximum again.
The output voltage waveform of the operation principle of the bridge half-controlled rectification circuit of accompanying drawing 1a contrast accompanying drawing 1c can divide four sections to be summarized as follows: when diode (do not connect in the dotted line)
(1) gives kp
1And kp
2Add triggering signal, winding voltage u
3And u
2Respectively by ZP, KP
1With ZP, KP
2Form two half-wave controlled rectifications, obtain two half-wave controlled rectification voltages, work as kp in I and II output
1And kp
2During full conducting, I and II two ends obtain the maximum output voltage of this section, and obtain first optimum power factor point.
(2) keep kp
1And kp
2Triggering signal, add kp again
3And kp
4Triggering signal, and make α
1≤ α
3And α
1≤ α
4, winding voltage (u
2+ u
3) pass through kp
1, kp
3, kp
2And kp
4Form controlled bridge rectifier circuit, obtain the voltage of above-mentioned (1) at I and II two ends first half, latter half obtains (u
2+ u
3) bridge-type controlled rectification voltage, work as kp
1, kp
2, kp
3And kp
4During full conducting, I and II two ends obtain this section maximum output voltage, and obtain second optimum power factor: point.
If keep kp
1And kp
2Triggering signal, be not to add kp
3And kp
4Triggering signal, but add kp again
3And kp
6Triggering signal, and make α
1≤ α, and α
2≤ α
6, winding voltage (u
3+ u
4) and (u
1+ u
2) respectively by zp, kp and ZP, kp
6Form another group voltage higher two half-wave controlled rectification circuits, obtain two half-wave controlled rectification voltages of above-mentioned (1) in I and II two ends forward part, the rear section obtains (u
3+ u
4) and (u
1+ u
2) two half-wave controlled rectification voltages, work as kp
3And kp
6During full conducting, I and II two ends obtain this section maximum output voltage, and obtain another kind of second optimum power factor point.
(3) keep kp
3And kp
4(or kp
3And kp
6) triggering signal, add kp again
3And kp
6(or kp
3And kp
4) triggering signal, and make α
3≤ α
5And α
4≤ α
6(or α
5≤ α
3And α
6≤ α
4), winding voltage (u
2+ u
3+ u
4) and (u
1+ u
2+ u
3) pass through kp respectively
3, kp
5And kp
4, kp
6Form and prolong the limit controlled bridge rectifier circuit, get the voltage of above-mentioned (2) in I and II two ends forward part, the rear section obtains (u
2+ u
3+ u
4) and (u
1+ u
2+ u
3) prolong limit bridge-type controlled rectification voltage, work as kp
3, kp
4, kp
5And kp
6During full conducting, I and II two ends obtain this section maximum output voltage, and obtain the 3rd optimum power factor point.
(4) keep kp
3And kp
6Triggering signal, add kp again
7And KP
8Triggering signal, and make α
5≤ α
7And α
6≤ α
8, winding voltage (u
1+ u
2+ u
3+ u
4) pass through KP
5, KP
6, KP
7And KP
8Form controlled bridge rectifier circuit, obtain the voltage of above-mentioned (3) in I and II two ends forward part, the rear section obtains (u
1+ u
2+ u
3+ u
4) bridge-type controlled rectification voltage, work as KP
3, KP
6, KP
7And KP
8During full conducting, I and II two ends obtain this bridge half-controlled rectification circuit maximum output voltage, and obtain the 4th optimum power factor point.
The triggering signal of eight controllable devices in the accompanying drawing 1a circuit can adopt eight independent triggers circuit, also can adopt four independent triggers signal (KP
1And KP
2, KP
3And KP
4, KP
5And KP
6, KP
7And KP
8Each public one), above-mentioned triggering mode is simple, but the triggering mode of the bridge half-controlled rectification circuit of accompanying drawing 1a is not only limited to above-mentioned triggering mode, by the numerical value of suitable each section of selection voltage and other triggering mode, above-mentioned bridge half-controlled rectification circuit also can be obtained more optimum power factor point, for example: with eight controllable devices KP
1, KP
2, KP
3, KP
4, KP
5, KP
6, KP
7, KP
8Add the phase shift triggering signal in order successively, and after last controllable devices reaches maximum conduction angle, the triggering signal that adds back one controllable devices again, just can obtain the phase-shift voltage regulating of eight optimum power factor points, but this moment commutating voltage in the minimum harmonic frequency than low one times of aforementioned triggering mode.For example eight controllable devices are spared again and adopt zero cross fired, and trigger in the following order: KP
1, KP
2, KP
5, KP
6, remove KP
5Add KP afterwards again
3, remove KP
6Add KP afterwards again
4, KP
5, KP
6, KP
7, KP
8, at 2u
1=2u
4=u
2=u
3Voltage relationship under, can realize ten the retaining output dc voltages pressure regulation.
According to above-mentioned similar circuit structure and operation principle, represent the number of taps of secondary winding as long as suitably increase number of taps-available (2n+1) of secondary winding, and the quantity of rectification and controlled rectification device, adopt suitable control triggering mode, the optimum power factor point is evenly distributed in the whole range of regulation, be implemented in the controllable rectifying and pressure-regulating that is similar to permanent High Power Factor in the range of regulation, this is just for improving the power factor and the rectification efficiency of controlled rectification equipment, reduce the harmonic wave in the controlled rectification equipment output voltage, reduce controlled rectification equipment the harmonic pollution of electrical network has been opened up a new road.
The single-phase bridge half-controlled rectification circuit of accompanying drawing 1 needs eight (or seven) controlled rectification devices, and one or two rectifier diode reduces some controlled rectification device and can derive following several bridge half-controlled rectification circuit.
(1) circuit shown in accompanying drawing 2a and the b, accompanying drawing 2c illustrate one of accompanying drawing 2a output voltage waveform.ZP among accompanying drawing 2a and the b and KP are received respectively between I and the centre tap, again with kp among the accompanying drawing 2b
3, kp
4, Zp
5, Zp
6Change Zp respectively into
3, ZP
4, KP
5, KP
6Afterwards, can get other two kinds of bridge half-controlled rectification circuits.
(2) a in the accompanying drawing 3,4,5,6,7,8 and the circuit shown in the b, c shows one of their output voltage waveform respectively.By the rectification circuit of accompanying drawing 8 and oscillogram as can be known, it is characterised in that in the controlled bridge rectifier circuit, between two taps of rectification winding, increase a new centre tap, between this tap and dc output end, be linked with a rectification or controlled rectification device, (u in the circuit
1+ u
2) need not be equal to (u
3+ u
4) time, as this tap (u on central point
1+ u
2=u
3+ u
4) time, this circuit can be described as bridge type fully controlled rectification circuit, as (u
3+ u
4) be not equal to (u
1+ u
2) time, it is more appropriate that this circuit is called bridge half (two half-wave) controlled rectification circuit.We can say that by drawing bridge half-controlled rectification circuit comprises bridge type fully controlled rectification circuit, bridge type fully controlled rectification circuit is a special case of bridge half-controlled rectification circuit, and the research of bridge half rectification circuit is the continuation and the development of bridge type fully controlled rectification circuit research.CN87105504A circuit patent is that bridge half rectification circuit research is laid a good foundation, and the research of bridge half circuit is enriched and developed bridge type fully controlled rectification circuit.
Above-mentioned single-phase bridge half-controlled rectification circuit is characterized in that the single-phase rectifier transformer secondary winding has (2n+1) individual tap, is connected with between the centre tap of winding and dc output end: (a) one or two rectifying device; (b) controllable devices.Between other tap and dc output end, be connected with: (a) rectification or controlled rectification device; (b) rectifying device and a controlled rectification device; (c) two controlled rectification devices.It comprises that also the known replacement circuit that replaces two controllable devices is interior with after a controllable devices and the combination of two rectifier diodes.
Has an out of phase with three or more.After two dc output ends of above-mentioned (1) and (2) described single-phase bridge half-controlled rectification circuit directly are in parallel, can obtain corresponding 18 types heterogeneous bridge half-controlled rectification circuit, these heterogeneous bridge half-controlled rectification circuits is characterized in that three-phase transformer, and each evenly mutually has (2n+1) individual rectification winding of drawing tap, is connected with between middle tap and the dc output end in every phase winding: (a) one or two rectifying device; (b) controlled rectification device.Between other tap and dc output end, be connected with: (a) rectifying device and a controlled rectification device; (b) two controlled rectification devices; (c) rectification or controlled rectification device.
Circuit shown in the accompanying drawing 9 is by three phase differences, 120 degree, one of three-phase bridge half-controlled rectification circuit that the single-phase bridge half-controlled rectification circuit of accompanying drawing 1a is formed, because parallel three phase output, so the maximum conduction angle of each controlled rectification device has only 60 degree, in order to improve the secondary utilance of controllable devices and transformation, six phase bridge half-controlled rectification circuits of band interphase reactor have as shown in Figure 10 been invented, make the maximum conduction angle of device bring up to 120 degree by 60 degree, thereby the utilance of device and transformer is all greatly improved, by this principle, the bridge half-controlled rectification circuit of band interphase reactor also extends in any one circuit of above-mentioned polytype heterogeneous bridge half-controlled rectification circuit, the even maximum conduction angle of device that can make doubles, the utilance of transformer and device improves, the heterogeneous bridge half-controlled rectification circuit of this band interphase reactor, it is characterized in that secondary each the even mutually rectification winding that the individual tap of band (2n+1) is arranged of three-phase transformer, be connected with a rectification or controlled rectification device between a middle tap and a dc output end in every phase winding, in other tap, be connected with: (a) rectification or controlled rectification device; (b) rectifying device and a controlled rectification device; (c) two controlled rectification devices.Another anode (or negative electrode) end of all these devices is also received afterwards on the direct current output negative terminal (or anode) mutually, two terminations that another negative electrode (or anode) end is alternately received interphase reactor respectively successively, and the centre tap of interphase reactor is direct current output plus terminal (or negative terminal).
Controlled rectification device KP in accompanying drawing 10
3A, b, c, KP
5A, b, c, KP
7A, b, c and KP
8During the full conducting of a, b, c, other all devices all bear reverse voltage and ineffective, so invented the basic rectification circuit of six phases (heterogeneous) of the band interphase reactor shown in the accompanying drawing 11 again.The rectifying device of accompanying drawing 11 all changes the controlled rectification device into, has invented the basic controlled rectification circuit of six phases (heterogeneous) of band interphase reactor again.
Six phases (heterogeneous) the bridge-type controlled rectification and the rectification circuit of band interphase reactor, it is characterized in that having an interphase reactor, on two leading-out ends of each phase secondary commutation winding, all be connected with two controlled rectifications or rectifying device, after being in parallel, receives on the direct current output negative terminal (or anode) at another anode of all these devices (or resistance utmost point) end, another negative electrode (or anode) end is alternately received respectively on two terminations of interphase reactor successively, and the centre tap of interphase reactor is direct current output plus terminal (or negative terminal), when whole rectifying devices were rectifier diode, circuit was called six phases (heterogeneous) bridge rectifier of being with interphase reactor.When part or all of rectifying device was the controlled rectification device, circuit was called six phases (heterogeneous) controlled bridge rectifier circuit of being with interphase reactor.They are compared with controlled rectification circuit with the double star rectification of known band interphase reactor, the transformer utilization factor height, and device withstand voltage requires low.They are compared with controlled rectification circuit with known six phase bridge rectifiers, device and transformer secondary output utilance height.They are compared with controlled rectification circuit with three-phase bridge rectification, output current big (can reduce the number in parallel of device), they have using value in the occasion of some big electric current high voltage output very much, and they also extend in 12,18,24 and 36 commutating phases and the controlled rectification circuit and use.
Circuit shown in the accompanying drawing 12 is that the transformer secondary output winding is one of three-phase bridge half-controlled rectification circuit of connecting of triangle mode.It is by main rectifier transformer B
1With the auxiliary transformer B that is connected the three-phase Y-connection in three taps in the secondary centre of main transformer
2, 12 controlled rectification devices and two rectifying devices form.As seen from the figure, by rectifying device ZP
13, ZP
14, controlled rectification device KP
7, KP
8, KP
9, KP
10, KP
11, KP
12With the three phase full bridge controlled rectifier of Y-connection, when it is exported in low-voltage, by KP
7, KP
8, KP
9And ZP
14, by KP
10, KP
11, KP
12And ZP
13The controlled rectification circuit of forming the output in parallel of two groups of three-phase semiwaves, when high voltage is exported, by six controlled rectification devices the phase voltage on three secondary winding centre taps is carried out the bridge-type controlled rectification, when these six full conductings of controlled rectification device, export the highest controlled rectification voltage of this section, obtain first optimum power factor point.When triggering six controlled rectification device KP that directly are connected on the secondary delta windings of main rectifier transformer
1, KP
2, KP
3, KP
4, KP
5And KP
6The time, rectification circuit can be exported higher three-phase controlled rectification voltage.When these six full conductings of controllable devices, other all devices are just blocked because of bearing reverse voltage, and the highest controlled rectification voltage of rectification circuit output this moment obtains second optimum power factor point.The capacity of auxiliary three-phase transformer changes with the secondary tap position of main transformer is different, the position of first optimum power factor point also changes with secondary tap position, tap is when the center position of secondary winding, the capacity minimum of auxiliary transformer, as long as this transformer is according to passing through diode ZP
13And ZP
14Current values design get final product.
Secondary winding shown in the accompanying drawing 12 is the bridge half-controlled rectification circuit that the three-phase bridge half-controlled rectification circuit of triangle connection can also derive various ways, is several most important derivation bridge half-controlled rectification circuits below.
(1) the secondary band auxiliary transformer shown in the accompanying drawing 13 and the bridge half-controlled rectification circuit of two diodes.It and accompanying drawing 12 differences are to have saved three controlled rectification devices and their circuits for triggering, and its maximum output voltage is by KP
1, KP
2, KP
3, KP
10, KP
11And KP
12The floating-point three-plase half wave rectifier circuit of six device compositions is determined.
(2) the secondary band auxiliary transformer shown in the accompanying drawing 14 and the bridge half-controlled rectification circuit of two diodes.It and accompanying drawing 12 differences, be six controlled rectification devices and their circuits for triggering that saved in the one group of three-phase bridge circuit that is connected in the secondary centre tap, it is little to use sort circuit to be worth separately, but it cooperates with the three-phase bridge half circuit that is Y-connections with two center pole pipe secondary winding, can create 12 phase controlled rectification circuits (comprising the combinational circuit of series connection and parallel connection 12 controlled rectification circuit mutually of band interphase reactor), this circuit just has big using value.
The three-phase bridge half-controlled rectification circuit of the no auxiliary transformer shown in the accompanying drawing 15, it is compared with accompanying drawing 13 bridge half-controlled rectification circuits, an auxiliary transformer and two rectifying devices have been saved, when it is exported in low-voltage, adopt the phase voltage on the secondary winding centre tap to carry out the three-phase full-controlled bridge rectification, after six full conductings of controllable devices, trigger KP again
1, KP
2And KP
3, at this moment circuit is just by KP
1, KP
2, KP
3And KP
10, ZP
11, ZP
12Six devices are formed the floating-point three-phase half-wave controlled rectifier circuit, output three phase half wave rectification voltage.
The three-phase bridge half-controlled rectification circuit of the no auxiliary transformer shown in the accompanying drawing 16.It is to change three controllable devices in the bridge half-controlled rectification circuit in the accompanying drawing 15 into three rectifying devices, and circuits for triggering are simplified, and cost reduces, but big than accompanying drawing 15 at low-voltage output time-harmonic wave.It is in the controlled rectification circuit of Y-connection that accompanying drawing 16 and 17 bridge half-controlled rectification circuit all extend to secondary.
The floating-point three-phase half-wave controlled rectifier circuit that circuit shown in the accompanying drawing 17 is invented during bridge half-controlled rectification circuit for research a kind of, wherein three controllable devices KP
4, KP
5, KP
6Change uncontrollable device ZP into
4, ZP
5And ZP
6Can get a kind of irreversible floating-point three-phase half-wave controlled rectifier circuit again.All change whole controllable devices in the accompanying drawing 17 into rectifying device ZP
4, ZP
5, ZP
7, ZP
7, ZP
8, ZP
9Can get the uncontrollable rectification circuit in a kind of basis again, these three kinds of tandem circuits are compared with controlled rectification circuit (comprising three-phase semiwave and tortuous three-phase semiwave) with known three phase half wave rectification, transformer secondary output utilance height, the requirement of withstand voltage of device is low, because the electric current that flows through in the rectification winding is positive and negative asymmetric bidirectional current, and the secondary winding utilance is more than general three-phase semiwave height, therefore, form six phase half-wave rectifications and the controlled rectification circuit of corresponding band interphase reactor with them, the design capacity of transformer be can significantly reduce, and copper material and steel saved.
From the above: the secondary commutation winding is that the bridge half-controlled rectification circuit that the triangle mode connects can be divided into two types, and a kind of is not to be with center diode and auxiliary transformer, and another kind is band center two-stage pipe and auxiliary transformer.
The three-phase bridge half circuit of no auxiliary transformer it is characterized in that the rectifier transformer secondary winding be with tapped, secondary winding connects in the triangle mode, be connected with three controlled rectification device anodes (or resistance utmost point) respectively on three summits that triangle connects, perhaps be connected to the rectified three-phase circuit of six controlled rectification devices, the three-phase bridge that is connected with six devices compositions on the centre tap of each secondary winding respectively (comprises rectifier bridge, half control bridge and fully controlled bridge) rectification circuit, another anode tap of all these devices is in parallel and is the negative terminal of direct current output, another resistance extremely is in parallel to the anode of direct current output, makes them can export three-phase semiwave with a pair of dc output end, three-phase bridge, and both controlled rectification voltages of combining.It also should comprise: have only the anode (or negative electrode) of three rectifications or controlled rectification device in three tops that rectification winding triangle connects, have only three kinds of circuit (full control, half control and rectification) that have only six devices of the negative electrode (or anode) of other three rectifications or controlled rectification device on three secondary centre taps.When whole devices all were rectifier diode, circuit was the floating-point three-plase half wave rectifier circuit, and as half or when all device is controllable devices, circuit is the floating-point three-phase half-wave controlled rectifier circuit.
The band auxiliary transformer the three-phase bridge half-controlled rectification circuit it is characterized in that the rectifier transformer secondary winding be with tapped, and the rectification winding connects in the triangle mode, three summits that connect at triangle are connected to three or six controlled rectification devices respectively, and connect with three-phase semiwave or three-phase bridge mode, on the centre tap of three windings, be connected to six rectifications or controlled rectification device respectively, perhaps three rectifying devices and three controlled rectification devices, and they connect in the three-phase bridge mode, also on three centre taps, be connected with the three-phase auxiliary transformer of a Y-connection simultaneously, one or two rectifier diode is arranged on the central point of Y-connection, receive the negative terminal of direct current output after another anode tap of all these devices is in parallel, receive the direct current output plus terminal after another anode tap is in parallel.
The present invention is not only limited to above-mentioned described embodiment circuit, also should comprise using the expanded application circuit of foregoing circuit as the basis.
Bridge half-controlled rectification circuit can be realized the tracking of multiple spot High Power Factor, difficulty-power factor that the two big difficulty or ease that having solved influences the use of controlled rectification circuit large-scale popularization for many years overcome is low, Harmonic Interference is big, therefore, the invention of bridge half-controlled rectification circuit will bring controlled rectification equipment to use and go up generation one quantum leap.Make the bridge half circuit obtain good Regulation Control characteristic, must have good bridge half circuits for triggering to match, it is made up of bridge half circuits for triggering dephased single-phase or heterogeneous circuits for triggering more than two groups.Microelectric technique now can be finished this task fully well, can also design and make integrated circuit-bridge half integrated trigger circuit of special-purpose bridge half circuits for triggering for bridge half-controlled rectification circuit, also can realize triggering control with microcomputer or monolithic in the triggering system of heterogeneous bridge half-controlled rectification circuit.
In order to reduce the interference of controllable device to electrical network, no matter be single-phase or heterogeneous bridge half-controlled rectification circuit, can trigger with zero and realize branch retaining contactless voltage-regulating, the bridge half-controlled rectification circuit of for example above-mentioned five taps can realize that branch eight retainings zero trigger the adjusting of output direct voltage, this regulative mode and trigger to regulate output DC with leading zero and be pressed with substantial difference, therefore the former exports direct current, and to stop the beginning from second be continuous, and the latter just is discontinuous, is a leap.
Existing rectification and controlled rectification circuit all have special-purpose rectification module and special-purpose integrated trigger circuit.Bridge half-controlled rectification circuit also can be produced special-purpose rectification module-bridge half rectification module and special-purpose integrated trigger circuit-bridge half integrated trigger circuit from now on.
Advantages such as bridge half rectification circuit can be applied in the existing various single-phase controlled rectification equipment, can be applied in existing poly phase rectification and the controlled rectification equipment, and the equipment that uses the present invention to produce has High Power Factor, harmonic voltage is low, and Harmonic Interference is few.Be fit to make the equipment of high performance-price ratio.
Some circuit of the present invention not only can be used for rectification, and what have also can be used for inversion.
N in the specification of the present invention is the natural number since 1.
Claims (9)
1, a kind of being used for converts single-phase alternating current to galvanic single phase-controlled rectification circuit, and it comprises:
A transformer, its elementary winding is used to be connected to an AC power, and its secondary winding has odd number of taps, comprises a centre cap, two end taps and be arranged in the middle plug of described centre cap both sides symmetrically.
A plurality of rectifying devices is characterized in that, described a plurality of rectifying devices comprise:
A plurality of first rectifying devices, each device has a conducting state and not on-state, and its anode all connects one first output, and its resistance utmost point is used for connecting respectively the tap of described secondary winding,
A plurality of second rectifying devices, each device has a conducting state and not on-state, and its anode is used for connecting respectively the described tap of described secondary winding, and its negative electrode all is connected to one second output,
Wherein, tap connects described first rectifying device, or second rectifying device, perhaps the two,
Above-mentioned a plurality of first and second rectifying devices should be controlled so as to first rectifying device that makes at least one connect certain tap with certain electromotive force and connect the conducting simultaneously of certain second rectifying device with high potential at least one, thereby make the electrical potential difference between above-mentioned two taps of output between described first and second outputs, by selecting to be connected at least one first rectifying device and at least one second rectifying device in the different taps and making their conductings simultaneously, change perhaps that their ON time are exported different value on described first and second outputs but commutating voltage that identical polar is arranged.
2, rectification circuit as claimed in claim 1 is characterized in that, described first or the quantity of second rectifying device can elect as respectively on demand 2 to the arbitrary numerical value between the described tap number, and its total quantity should equate with described tap number at least.
3, rectification circuit as claimed in claim 2, it is characterized in that, described a plurality of rectifying device comprises at least 3 controllable devices, also can further comprise rectifier diode, the rectifier diode that is used as first rectifying device connects two taps of described secondary winding centre cap or close centre tapped both sides, controllable devices as first rectifying device then connects more deep tap or centre cap, and is also identical for described second rectifying device.
4, rectified current as claimed in claim 2 is characterized in that, described secondary winding has 5 taps, has 4 first rectifying devices to connect other 4 taps except that described centre cap respectively, and has 5 second rectifying devices to connect described 5 taps respectively.
5, rectification circuit as claimed in claim 2, it is characterized in that, described secondary winding has 5 to draw tap, draw tap for 2 that have 2 rectifying devices to connect respectively except that described centre cap, and have 3 second rectifying devices to connect described center leading-out end and the other not leading-out end of connected device spare respectively.
6, a kind of being used for converts three-phase alternating current to galvanic rectification circuit, and it is characterized in that: it comprises:
A three-phase rectifier transformer, its elementary winding is used to be connected to a three-phase alternating-current supply, and all having odd number, each phase secondary winding draws tap, comprise that each phase secondary winding has at least a center to draw tap, draw tap with two ends, draw tap in the middle of other and be distributed in the both sides that tap is drawn at described center symmetrically
A plurality of first rectifying devices, each device have a conducting state and a not on-state, and its anode all connects an electronegative potential output, and its negative electrode is used for directly connecting respectively the tap of drawing of described secondary winding.
A plurality of second rectifying devices, each device has a conducting state and not on-state, and its anode is used for directly connecting the described of described secondary winding respectively and draws tap, and its negative electrode is connected to a high potential output,
Wherein, draw tap for one and connect described first rectifying device, or second rectifying device, perhaps both,
Described a plurality of first and second rectifying devices should be controlled so as to and make at least one connect certain first rectifying device of drawing tap with certain electromotive force connects certain while of second rectifying device with high potential at least one conducting, thereby make above-mentioned two electrical potential differences of drawing between the tap of output between described electronegative potential and the high potential output, by selecting to be connected different drawing at least one first rectifying device and at least one second rectifying device in the tap and make their conductings simultaneously, perhaps change the time of their conductings simultaneously, at described electronegative potential and high potential output different value but the commutating voltage of identical polar is arranged.
7, rectification circuit as claimed in claim 6, it is characterized in that, the total quantity of described first and second rectifying devices can be elected transformer secondary output on demand respectively as and draw between tap number and the 2 times of leading-out end numbers, and its total quantity should be the leading-out end number of secondary winding at least and equates.
8, rectification circuit as claimed in claim 6, it is characterized in that, each phase secondary winding has five to draw tap, and for each phase secondary winding, it is that first rectifying device is connected to the tap that is symmetrical in leading-out end both sides, center respectively that two controllable devices are arranged, and second rectifying device comprises that one is connected to the centre tapped rectifier diode of this winding and two controllable devices that are connected all the other two taps respectively.
9, rectification circuit as claimed in claim 6 is characterized in that, each secondary winding of three-phase transformer all has only a centre tap.Secondary winding connects with triangular form, secondaryly draws six leading-out ends altogether, and it is that first rectifying device is connected to secondary six leading-out ends respectively that six controllable devices are arranged, and is connected to three secondary tapped leading-out ends respectively and second rectifying device is three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89100898 CN1021532C (en) | 1989-02-18 | 1989-02-18 | Bridge-type semi-(full-) wave rectifying circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89100898 CN1021532C (en) | 1989-02-18 | 1989-02-18 | Bridge-type semi-(full-) wave rectifying circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1045007A CN1045007A (en) | 1990-08-29 |
| CN1021532C true CN1021532C (en) | 1993-07-07 |
Family
ID=4854062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89100898 Expired - Fee Related CN1021532C (en) | 1989-02-18 | 1989-02-18 | Bridge-type semi-(full-) wave rectifying circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1021532C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101141108B (en) * | 2007-01-10 | 2010-10-13 | 龚秋声 | DC motor bridge full thyristor speeder |
| CN102594172B (en) * | 2012-03-02 | 2017-10-13 | 龚秋声 | Compound controllable rectification circuit |
| CN108667319A (en) * | 2017-04-02 | 2018-10-16 | 龚秋声 | Positive and negative star three phase full bridge controlled rectifier |
-
1989
- 1989-02-18 CN CN 89100898 patent/CN1021532C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1045007A (en) | 1990-08-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Menzies et al. | Advanced static compensation using a multilevel GTO thyristor inverter | |
| US20050111246A1 (en) | Multilevel converter based intelligent universal transformer | |
| CN106655737A (en) | Tapped balance reactor with secondary side winding rectification function | |
| CN100424973C (en) | Integrated converting means with three-phase activity coefficient adjustment | |
| CN1021532C (en) | Bridge-type semi-(full-) wave rectifying circuit | |
| US3931563A (en) | Force commutation static frequency changer apparatus using direct current chopper technique | |
| Baiju et al. | A high resolution multilevel voltage space phasor generation for an open-end winding induction motor drive | |
| CN1122967A (en) | Single phase and multiple phase non-zero base electronic voltage regulating circuit | |
| Das et al. | A novel asymmetrical reduced switch nine-level inverter | |
| WO2018091065A1 (en) | A modular multilevel converter for use in a high voltage traction system | |
| CN205945540U (en) | Controlled rectifier that three -phase fully controlled bridge and six phase half -wave combined together | |
| CN202444438U (en) | Duplex controllable rectifying device | |
| US4517635A (en) | Line-commutated converter circuit | |
| RU2156024C1 (en) | Three-phase sine-voltage regulator with high- frequency section | |
| CN1076064A (en) | The interchange voltage regulating circuit with controllable of controllable devices conversion transformation ratio | |
| CN205986658U (en) | Controlled rectifier that five stem stem three -phase fully controlled bridges and six phase half -wave combined together | |
| CN1067770A (en) | Rectification of electric capacity unsteady flow and controlled rectification circuit | |
| CN216721192U (en) | Combined voltage regulating circuit of high-voltage power supply rectifier | |
| CN102255492B (en) | Main circuit for increasing power factor of controllable silicon power supply | |
| CN202142993U (en) | Main circuit capable of improving silicon controlled power supply power coefficient | |
| CN106936322A (en) | Compound band paralleing reactor double reverse-stars type controlled rectification circuit | |
| CN206060571U (en) | Three-phase corner connection half-wave mutually ties full controlled rectifier with half-controlled bridge | |
| CN1079082A (en) | Chopper-type controlled rectification and AC voltage adjusting circuit | |
| SU997201A1 (en) | Ac-to-dc voltage converter | |
| CN206060570U (en) | A kind of double control angle three-phase multiple rectifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |