CN113839572B - Rectifying module and high-voltage direct-current power supply system - Google Patents
Rectifying module and high-voltage direct-current power supply system Download PDFInfo
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- CN113839572B CN113839572B CN202111296178.1A CN202111296178A CN113839572B CN 113839572 B CN113839572 B CN 113839572B CN 202111296178 A CN202111296178 A CN 202111296178A CN 113839572 B CN113839572 B CN 113839572B
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M7/2176—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only comprising a passive stage to generate a rectified sinusoidal voltage and a controlled switching element in series between such stage and the output
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
- H02M1/4208—Arrangements for improving power factor of AC input
- H02M1/4233—Arrangements for improving power factor of AC input using a bridge converter comprising active switches
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
Abstract
The invention discloses a rectifying module and a high-voltage direct current power supply system, wherein the rectifying module comprises an inductance component, a switch component, a rectifying component and a capacitance component which form a three-phase bridgeless BOOST-BUCK topology connected with a phase-shifting transformer; the inductance assembly comprises a first inductance, a second inductance, a third inductance and a fourth inductance; the switch assembly comprises a first switch, a second switch, a third switch and a fourth switch; the rectifying component comprises a first rectifying element, a second rectifying element, a third rectifying element and a fourth rectifying element; the capacitive assembly includes a first capacitance and a second capacitance. The invention can realize the functions of PFC, rectification, voltage rising and dropping and the like and obviously improve the efficiency and the power density through the three-phase bridgeless BOOST-BUCK and the phase-shifting transformer, thereby meeting the requirements of power grid development, and the invention has the advantages of simple topology, low control complexity and high reliability and is suitable for large-scale popularization and application.
Description
Technical Field
The invention relates to the technical field of high-voltage direct-current transmission, in particular to a rectifying module and a high-voltage direct-current power supply system.
Background
As is well known, the current social power transmission and distribution mode is mainly alternating current power transmission and distribution, but the alternating current power transmission and distribution has limitations in many aspects because of high quality requirements of alternating current, and the problems of frequency, power factors, harmonic waves, capacitance current to ground, line impedance, synchronous processing and the like are considered. Meanwhile, the direct current power transmission and distribution technology has the unique characteristics, so that the problems of alternating current which are needed to be considered are avoided, direct current power transmission and distribution, in particular high-voltage direct current power transmission and distribution, are widely focused and applied, and have wide market demands and play a great role in current and even future power grids.
At present, the topology of the traditional high-voltage direct-current power supply system usually adopts a traditional transformer, a PFC (Power Factor Correction) circuit and an LLC resonant circuit, and the topology can realize the functions of PFC, rectification, voltage boosting and the like, but has the problems that the efficiency is lower and the development requirement of a power grid cannot be met.
Therefore, there is a great need for improvements in the art.
The above information is presented as background information only to aid in the understanding of the present disclosure and is not intended or admitted to be prior art relative to the present disclosure.
Disclosure of Invention
The invention provides a rectifying module and a high-voltage direct current power supply system, which are used for solving the defects in the prior art.
In order to achieve the above object, the present invention provides the following technical solutions:
In a first aspect, an embodiment of the present invention provides a rectifying module, including an inductance component, a switch component, a rectifying component, and a capacitance component; wherein,
The inductance assembly comprises a first inductance L1, a second inductance L2, a third inductance L3 and a fourth inductance L4;
The switch assembly comprises a first switch S1, a second switch S2, a third switch S3 and a fourth switch S4;
the rectifying assembly comprises a first rectifying element D1, a second rectifying element D2, a third rectifying element D3 and a fourth rectifying element D4;
The capacitor assembly comprises a first capacitor C1 and a second capacitor C2;
The reverse ends of the first rectifying element D1, the second rectifying element D2 and the third rectifying element D3 are connected in parallel and then connected with one end of the fourth switch S4, the forward end of the first rectifying element D1 is connected with one end of the first switch S1, the forward end of the second rectifying element D2 is connected with one end of the second switch S2, the forward end of the third rectifying element D3 is connected with one end of the third switch S3, and the other ends of the first switch S1, the second switch S2 and the third switch S3 are connected in parallel and then connected with a load;
one end of the first inductor L1, the second inductor L2 and the third inductor L3 are respectively connected with one of three-phase windings in the phase-shifting transformer, the other end of the first inductor L1 is connected between the first switch S1 and the first rectifying element D1, the other end of the second inductor L2 is connected between the second switch S2 and the second rectifying element D2, and the other end of the third inductor L3 is connected between the third switch S3 and the third rectifying element D3;
The other end of the fourth switch S4 is connected with the fourth inductor L4 in series and then connected with the load;
The positive end of the fourth rectifying element D4 is connected between one end of the first switch S1, the second switch S2 and the third switch S3 connected in parallel and the load, and the reverse end of the fourth rectifying element D4 is connected between the fourth switch S4 and the fourth inductor L4;
One end of the first capacitor C1 is connected between one end of the first rectifying element D1, the second rectifying element D2 and the third rectifying element D3 connected in parallel and the fourth switch S4, and the other end of the first capacitor C1 is connected between one end of the first switch S1, the second switch S2 and the third switch S3 connected in parallel and the load;
One end of the second capacitor C2 is connected between the fourth inductor L4 and the load, and the other end of the second capacitor C2 is connected between the load and one end of the first switch S1, the second switch S2, and the third switch S3 after being connected in parallel.
Further, in the rectifying module, the rectifying assembly further includes a fifth rectifying element D5, a sixth rectifying element D6, and a seventh rectifying element D7;
the reverse end of the fifth rectifying element D5 is connected between the first inductor L1 and the phase-shifting transformer, and the forward end of the fifth rectifying element D5 is connected to one end of the first switch S1, the second switch S2 and the third switch S3 after being connected in parallel;
the reverse end of the sixth rectifying element D6 is connected between the second inductor L2 and the phase-shifting transformer, and the forward end of the fifth rectifying element D5 is connected to one end of the first switch S1, the second switch S2, and the third switch S3 after being connected in parallel;
The reverse end of the seventh rectifying element D7 is connected between the third inductor L3 and the phase-shifting transformer, and the forward end of the fifth rectifying element D5 is connected to one end of the first switch S1, the second switch S2, and the third switch S3 after being connected in parallel.
Further, in the rectifying module, the first switch S1, the second switch S2, the third switch S3, and the fourth switch S4 are all switching tubes.
Further, in the rectifying module, the switching tube is a MOS tube or a triode.
Further, in the rectifying module, the first rectifying element D1, the second rectifying element D2, the third rectifying element D3, the fifth rectifying element D5, the sixth rectifying element D6 and the seventh rectifying element D7 are all diodes or MOS transistors.
Further, in the rectifying module, the fourth rectifying element D4 is a diode.
In a second aspect, an embodiment of the present invention provides a high-voltage dc power supply system, including a high-voltage incoming line cabinet, an isolation transformer cabinet, a rectifier cabinet, and a dc power distribution cabinet that are sequentially connected;
the high-voltage incoming line cabinet is used for connecting high-voltage commercial power to the isolation transformer cabinet;
the isolation transformer cabinet comprises a phase-shifting transformer provided with a plurality of three-phase windings and is used for regulating the voltage of high-voltage commercial power;
The rectification cabinet comprises a rectification plug frame and a plurality of rectification modules arranged on the rectification plug frame and used for rectifying the high-voltage commercial power after voltage regulation;
The direct-current power distribution cabinet is used for outputting the rectified high-voltage commercial power to a load;
Wherein the rectifying module is the rectifying module according to the first aspect.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
according to the rectifying module and the high-voltage direct current power supply system provided by the embodiment of the invention, through the three-phase bridgeless BOOST-BUCK and the phase-shifting transformer, the functions of PFC, rectification, BUCK-BOOST and the like can be realized, and the efficiency and the power density can be obviously improved, so that the requirements of power grid development are met, and the system is concise in topology, low in control complexity, high in reliability and suitable for large-scale popularization and application.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic circuit diagram of a rectifying module according to a first embodiment of the present invention;
fig. 2 is a schematic diagram of a wave generation mode of the first switch S1, the second switch S2, and the third switch S3 in the first embodiment of the present invention;
Fig. 3 is a schematic control logic diagram of a rectifying module according to a first embodiment of the present invention;
fig. 4 is a schematic diagram of another circuit of a rectifying module according to a first embodiment of the present invention;
FIG. 5 is a schematic waveform diagram of a conventional three-phase bridgeless BOOST-BUCK according to an embodiment of the present invention;
FIG. 6 is a schematic waveform diagram of an improved three-phase bridgeless BOOST-BUCK according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a dc-dc power supply system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only some embodiments of the present invention, not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it will be understood that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present.
Furthermore, the terms "long," "short," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings, for convenience of description of the present invention, and are not intended to indicate or imply that the apparatus or elements referred to must have this particular orientation, operate in a particular orientation configuration, and thus should not be construed as limiting the invention.
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
Example 1
In view of the above-mentioned drawbacks of the conventional dc power supply technology, the present inventors have actively studied and innovated based on practical experience and expertise which are rich for years in designing and manufacturing in the industry, and in combination with application of the theory, so as to hope to create a technology capable of solving the drawbacks of the prior art, so that the dc power supply technology has more practicability. After continuous research and design and repeated sample test and improvement, the application with practical value is finally created.
Referring to fig. 1, an embodiment of the present invention provides a rectifying module, including an inductance component, a switch component, a rectifying component and a capacitance component; wherein,
The inductance assembly comprises a first inductance L1, a second inductance L2, a third inductance L3 and a fourth inductance L4;
The switch assembly comprises a first switch S1, a second switch S2, a third switch S3 and a fourth switch S4;
the rectifying assembly comprises a first rectifying element D1, a second rectifying element D2, a third rectifying element D3 and a fourth rectifying element D4;
The capacitor assembly comprises a first capacitor C1 and a second capacitor C2;
The reverse ends of the first rectifying element D1, the second rectifying element D2 and the third rectifying element D3 are connected in parallel and then connected with one end of the fourth switch S4, the forward end of the first rectifying element D1 is connected with one end of the first switch S1, the forward end of the second rectifying element D2 is connected with one end of the second switch S2, the forward end of the third rectifying element D3 is connected with one end of the third switch S3, and the other ends of the first switch S1, the second switch S2 and the third switch S3 are connected in parallel and then connected with a load;
one end of the first inductor L1, the second inductor L2 and the third inductor L3 are respectively connected with one of three-phase windings in the phase-shifting transformer, the other end of the first inductor L1 is connected between the first switch S1 and the first rectifying element D1, the other end of the second inductor L2 is connected between the second switch S2 and the second rectifying element D2, and the other end of the third inductor L3 is connected between the third switch S3 and the third rectifying element D3;
The other end of the fourth switch S4 is connected with the fourth inductor L4 in series and then connected with the load;
The positive end of the fourth rectifying element D4 is connected between one end of the first switch S1, the second switch S2 and the third switch S3 connected in parallel and the load, and the reverse end of the fourth rectifying element D4 is connected between the fourth switch S4 and the fourth inductor L4;
One end of the first capacitor C1 is connected between one end of the first rectifying element D1, the second rectifying element D2 and the third rectifying element D3 connected in parallel and the fourth switch S4, and the other end of the first capacitor C1 is connected between one end of the first switch S1, the second switch S2 and the third switch S3 connected in parallel and the load;
One end of the second capacitor C2 is connected between the fourth inductor L4 and the load, and the other end of the second capacitor C2 is connected between the load and one end of the first switch S1, the second switch S2, and the third switch S3 after being connected in parallel.
It should be noted that, in this embodiment, by designing the three-phase bridgeless BOOST-BUCK and the phase-shifting transformer, the functions of PFC, rectification, BUCK-BOOST and the like can be realized as in the prior art, but the efficiency and the power density can be obviously improved.
Specifically, the wave-generating modes of the first switch S1, the second switch S2, and the third switch S3 are shown in fig. 2, three-phase input voltages are compared in real time, the switch corresponding to the phase with the highest input voltage is turned on and off, and the other two switches are correspondingly exchanged at the input voltage commutation point. The bridgeless BOOST circuit and the BUCK circuit are controlled by two loops, and the loops of the three-phase bridgeless BOOST are described in an emphasized mode, as shown in fig. 3, an outer loop is a voltage loop, error amplification is carried out on the busbar voltage, the output of the voltage loop is given as a current loop, an inner loop is a current loop, three-phase input voltage is compared in real time, a switch corresponding to the phase with the highest input voltage carries out high-frequency switching, the current of the switch is the controlled quantity of the inner loop, and the other two switches are turned off.
In this embodiment, the three-phase bridgeless BOOST-BUCK is a common three-phase bridgeless BOOST-BUCK, and by improving the common three-phase bridgeless BOOST-BUCK, an improved three-phase bridgeless BOOST-BUCK can be obtained, as shown in fig. 4, and in particular, when improving, some elements need to be added for matching, that is, the rectifying element further includes a fifth rectifying element D5, a sixth rectifying element D6 and a seventh rectifying element D7;
the reverse end of the fifth rectifying element D5 is connected between the first inductor L1 and the phase-shifting transformer, and the forward end of the fifth rectifying element D5 is connected to one end of the first switch S1, the second switch S2 and the third switch S3 after being connected in parallel;
the reverse end of the sixth rectifying element D6 is connected between the second inductor L2 and the phase-shifting transformer, and the forward end of the fifth rectifying element D5 is connected to one end of the first switch S1, the second switch S2, and the third switch S3 after being connected in parallel;
The reverse end of the seventh rectifying element D7 is connected between the third inductor L3 and the phase-shifting transformer, and the forward end of the fifth rectifying element D5 is connected to one end of the first switch S1, the second switch S2, and the third switch S3 after being connected in parallel.
In this embodiment, the first switch S1, the second switch S2, the third switch S3, and the fourth switch S4 are all switching tubes.
Preferably, the switch tube is a MOS tube or a triode.
In this embodiment, the first rectifying element D1, the second rectifying element D2, the third rectifying element D3, the fifth rectifying element D5, the sixth rectifying element D6 and the seventh rectifying element D7 are all diodes or MOS transistors.
The fourth rectifying element D4 is a diode.
Next, detailed operation principles of the general three-phase bridgeless BOOST-BUCK and the improved three-phase bridgeless BOOST-BUCK will be described respectively.
Ordinary three-phase bridgeless BOOST-BUCK:
The waveforms of the topology are shown in fig. 5, t0 to t1: when the first switch S1 is turned on, current flows through the first inductor L1, the anti-parallel body diode of the first switch S1 and the anti-parallel body diode of the second switch S2, and the second inductor L2, at this time, the first inductor L1 and the second inductor L2 store energy, and current rises, and when the first switch S1 is turned off, current flows through the first inductor L1, the first rectifying element D1, the first capacitor C1, the anti-parallel body diode of the second switch S2, and the second inductor L2, at this time, the first inductor L1 and the second inductor L2 release energy, and current drops; t1 to t2: when the first switch S1 is turned on, current flows through the first inductor L1, the anti-parallel body diode of the first switch and the anti-parallel body diode of the third switch S3, and the third inductor L3, the first inductor L1 and the third inductor L3 store energy, the current rises, and when the first switch S1 is turned off, the current flows through the first inductor L1, the first rectifying element D1, the first capacitor C1 and the anti-parallel body diode of the third switch S3, and the third inductor L3 releases energy, and the current drops; the input current of the three-phase bridgeless BOOST is a non-sinusoidal wave, but the current is sinusoidal at the 10KV side because of harmonic cancellation of the phase-shifting transformer, and the PF value can reach more than 0.99; the basic working principle of the first rectifying element D1, the second rectifying element D2 and the third rectifying element D3 is the same as that described above if MOS transistors are used to realize synchronous rectification.
Improved three-phase bridgeless BOOST-BUCK:
The waveforms of the topology are shown in fig. 6, t0 to t1: when the first switch S1 is turned on, current flows through the first inductor L1, the first switch S1 and the sixth rectifying element D6, at this time, the first inductor L1 stores energy, the current rises, and when the first switch S1 is turned off, the current flows through the first inductor L1, the first rectifying element D1, the first capacitor C1 and the sixth rectifying element D6, at this time, the first inductor L1 releases energy, and the current drops; t1 to t2: when the first switch S1 is turned on, current flows through the first inductor L1, the first switch S1 and the seventh rectifying element D7, at this time, the first inductor L1 stores energy, the current rises, and when the first switch S1 is turned off, the current flows through the first inductor L1, the first rectifying element D1, the first capacitor C1 and the seventh rectifying element D7, at this time, the first inductor L1 releases energy, and the current drops; the input current of the three-phase bridgeless BOOST is a non-sinusoidal wave, but the current is sinusoidal at the 10KV side because of harmonic cancellation of the phase-shifting transformer, and the PF value can reach more than 0.99; the basic working principle of the first rectifying element D1, the second rectifying element D2, the third rectifying element D3, the fifth rectifying element D5, the sixth rectifying element D6 and the seventh rectifying element D7 is the same as that described above if MOS transistors are used to realize synchronous rectification.
According to the rectifying module provided by the embodiment of the invention, through the three-phase bridgeless BOOST-BUCK and the phase-shifting transformer, the functions of PFC, rectification, voltage boosting and reducing and the like can be realized, and the efficiency and the power density can be obviously improved, so that the requirements of power grid development are met, and the rectifying module is concise in topology, low in control complexity, high in reliability and suitable for large-scale popularization and application.
Example two
Referring to fig. 7, an embodiment of the present invention provides a high-voltage dc power supply system, which includes a high-voltage incoming line cabinet, an isolation transformer cabinet, a rectifier cabinet and a dc power distribution cabinet that are sequentially connected;
the high-voltage incoming line cabinet is used for connecting high-voltage commercial power to the isolation transformer cabinet;
the isolation transformer cabinet comprises a phase-shifting transformer provided with a plurality of three-phase windings and is used for regulating the voltage of high-voltage commercial power;
The rectification cabinet comprises a rectification plug frame and a plurality of rectification modules arranged on the rectification plug frame and used for rectifying the high-voltage commercial power after voltage regulation;
The direct-current power distribution cabinet is used for outputting the rectified high-voltage commercial power to a load;
The rectifying module is the rectifying module according to the first embodiment.
It should be noted that, since the phase-shifting transformer has a function of canceling higher harmonics, the PFC function of the system is implemented by the phase-shifting transformer, the rectifying module may not have the PFC function, and the input stage hardware and software may be simplified.
According to the high-voltage direct-current power supply system provided by the embodiment of the invention, through the three-phase bridgeless BOOST-BUCK and the phase-shifting transformer, the functions of PFC, rectification, BUCK-BOOST and the like can be realized, and the efficiency and the power density can be obviously improved, so that the requirements of power grid development are met, and the system is concise in topology, low in control complexity, high in reliability and suitable for large-scale popularization and application.
The description of the foregoing embodiments has been provided for the purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure. Individual elements or features of a particular embodiment are generally not limited to the particular embodiment, but, where applicable, may be interchanged and used with the selected embodiment even if not specifically shown or described. The same elements or features may also be varied in many ways. Such variations are not to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.
Example embodiments are provided so that this disclosure will be thorough, and will fully convey the scope to those skilled in the art. Numerous details are set forth, such as examples of specific parts, devices, and methods, in order to provide a thorough understanding of embodiments of the present disclosure. It will be apparent to one skilled in the art that the exemplary embodiments may be embodied in many different forms without the use of specific details, and neither should be construed to limit the scope of the disclosure. In certain example embodiments, well-known processes, well-known device structures, and well-known techniques are not described in detail.
The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises" and "comprising" are inclusive and, therefore, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order discussed and illustrated, unless specifically indicated. It should also be appreciated that additional or alternative steps may be employed.
When an element or layer is referred to as being "on," "engaged with," "connected to" or "coupled to" another element or layer, it can be directly on, engaged with, connected to or coupled to the other element or layer, or intervening elements or layers may also be present. In contrast, when an element or layer is referred to as being "directly on" … …, "" directly engaged with "… …," "directly connected to" or "directly coupled to" another element or layer, there may be no intervening elements or layers present. Other words used to describe the relationship of elements should be interpreted in a similar fashion (e.g., "between … …" and "directly between … …", "adjacent" and "directly adjacent", etc.). The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items. Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region or section from another element, component, region or section. Unless clearly indicated by the context, terms such as the terms "first," "second," and other numerical values are used herein to not imply a sequence or order. Accordingly, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
Spatially relative terms, such as "inner," "outer," "below," "beneath," "lower," "above," "upper," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. Spatially relative terms may be intended to encompass different orientations of the device in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the example term "below … …" may include both upward and downward orientations. The device may be otherwise oriented (rotated 90 degrees or otherwise) and interpreted in the relative description of the space herein.
Claims (5)
1. The rectifying module is characterized by comprising an inductance component, a switch component, a rectifying component and a capacitance component; wherein,
The inductance assembly comprises a first inductance L1, a second inductance L2, a third inductance L3 and a fourth inductance L4;
The switch assembly comprises a first switch S1, a second switch S2, a third switch S3 and a fourth switch S4;
the rectifying assembly comprises a first rectifying element D1, a second rectifying element D2, a third rectifying element D3 and a fourth rectifying element D4;
The capacitor assembly comprises a first capacitor C1 and a second capacitor C2;
The reverse ends of the first rectifying element D1, the second rectifying element D2 and the third rectifying element D3 are connected in parallel and then connected with one end of the fourth switch S4, the forward end of the first rectifying element D1 is connected with one end of the first switch S1, the forward end of the second rectifying element D2 is connected with one end of the second switch S2, the forward end of the third rectifying element D3 is connected with one end of the third switch S3, and the other ends of the first switch S1, the second switch S2 and the third switch S3 are connected in parallel and then connected with a load;
one end of the first inductor L1, the second inductor L2 and the third inductor L3 are respectively connected with one of three-phase windings in the phase-shifting transformer, the other end of the first inductor L1 is connected between the first switch S1 and the first rectifying element D1, the other end of the second inductor L2 is connected between the second switch S2 and the second rectifying element D2, and the other end of the third inductor L3 is connected between the third switch S3 and the third rectifying element D3;
The other end of the fourth switch S4 is connected with the fourth inductor L4 in series and then connected with the load;
The positive end of the fourth rectifying element D4 is connected between one end of the first switch S1, the second switch S2 and the third switch S3 connected in parallel and the load, and the reverse end of the fourth rectifying element D4 is connected between the fourth switch S4 and the fourth inductor L4;
One end of the first capacitor C1 is connected between one end of the first rectifying element D1, the second rectifying element D2 and the third rectifying element D3 connected in parallel and the fourth switch S4, and the other end of the first capacitor C1 is connected between one end of the first switch S1, the second switch S2 and the third switch S3 connected in parallel and the load;
one end of the second capacitor C2 is connected between the fourth inductor L4 and the load, and the other end of the second capacitor C2 is connected between one end of the first switch S1, the second switch S2, and the third switch S3 connected in parallel and the load;
The rectifying assembly further comprises a fifth rectifying element D5, a sixth rectifying element D6 and a seventh rectifying element D7;
the reverse end of the fifth rectifying element D5 is connected between the first inductor L1 and the phase-shifting transformer, and the forward end of the fifth rectifying element D5 is connected to one end of the first switch S1, the second switch S2 and the third switch S3 after being connected in parallel;
the reverse end of the sixth rectifying element D6 is connected between the second inductor L2 and the phase-shifting transformer, and the forward end of the fifth rectifying element D5 is connected to one end of the first switch S1, the second switch S2, and the third switch S3 after being connected in parallel;
the reverse end of the seventh rectifying element D7 is connected between the third inductor L3 and the phase-shifting transformer, and the forward end of the fifth rectifying element D5 is connected to one end of the first switch S1, the second switch S2, and the third switch S3 after being connected in parallel;
The first switch S1, the second switch S2, the third switch S3 and the fourth switch S4 are all switching tubes.
2. The rectifier module of claim 1, wherein the switching tube is a MOS tube or a triode.
3. The rectifying module according to claim 1, wherein the first rectifying element D1, the second rectifying element D2, the third rectifying element D3, the fifth rectifying element D5, the sixth rectifying element D6, and the seventh rectifying element D7 are diodes or MOS transistors.
4. A rectifying module according to claim 3, characterized in that said fourth rectifying element D4 is a diode.
5. The high-voltage direct-current power supply system is characterized by comprising a high-voltage incoming line cabinet, an isolation transformer cabinet, a rectifier cabinet and a direct-current power distribution cabinet which are connected in sequence;
the high-voltage incoming line cabinet is used for connecting high-voltage commercial power to the isolation transformer cabinet;
the isolation transformer cabinet comprises a phase-shifting transformer provided with a plurality of three-phase windings and is used for regulating the voltage of high-voltage commercial power;
The rectification cabinet comprises a rectification plug frame and a plurality of rectification modules arranged on the rectification plug frame and used for rectifying the high-voltage commercial power after voltage regulation;
The direct-current power distribution cabinet is used for outputting the rectified high-voltage commercial power to a load;
Wherein the rectifying module is the rectifying module according to any one of claims 1 to 4.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201194372Y (en) * | 2008-04-18 | 2009-02-11 | 艾默生网络能源有限公司 | Three-phase input non-isolation type converter |
| CN202888900U (en) * | 2012-10-30 | 2013-04-17 | 广东易事特电源股份有限公司 | Storage battery charging and boosting circuit for online UPS (Uninterrupted Power Supply) |
| CN103066865A (en) * | 2013-02-04 | 2013-04-24 | 电子科技大学 | Three-phase bridgeless power factor correction alternating current-direct current converter |
| WO2013159539A1 (en) * | 2012-04-27 | 2013-10-31 | 华为技术有限公司 | Circuit and control method thereof |
| CN103516192A (en) * | 2012-06-29 | 2014-01-15 | 艾默生网络能源系统北美公司 | Power-factor correction circuit, switching power supply module and power-factor correction method |
| CN204733105U (en) * | 2015-05-25 | 2015-10-28 | 江苏苏美达机电科技有限公司 | A kind of DC generation unit |
| CN108528263A (en) * | 2018-06-08 | 2018-09-14 | 重庆聚陆新能源有限公司 | A kind of efficient electric vehicle direct current charge system |
| CN109450276A (en) * | 2018-11-20 | 2019-03-08 | 株洲科盟车辆配件有限责任公司 | Power generator and train |
| CN214314583U (en) * | 2020-07-07 | 2021-09-28 | 青岛瑞阳电子有限公司 | Power take-off and power generation system of road carrying tool |
| CN216252557U (en) * | 2021-11-03 | 2022-04-08 | 易事特储能科技有限公司 | Rectifier module and high-voltage direct-current power supply system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753369B (en) * | 2015-03-18 | 2017-06-06 | 深圳市保益新能电气有限公司 | A kind of high-frequency isolation ac-dc conversion circuit and its control method |
-
2021
- 2021-11-03 CN CN202111296178.1A patent/CN113839572B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201194372Y (en) * | 2008-04-18 | 2009-02-11 | 艾默生网络能源有限公司 | Three-phase input non-isolation type converter |
| WO2013159539A1 (en) * | 2012-04-27 | 2013-10-31 | 华为技术有限公司 | Circuit and control method thereof |
| CN103516192A (en) * | 2012-06-29 | 2014-01-15 | 艾默生网络能源系统北美公司 | Power-factor correction circuit, switching power supply module and power-factor correction method |
| CN202888900U (en) * | 2012-10-30 | 2013-04-17 | 广东易事特电源股份有限公司 | Storage battery charging and boosting circuit for online UPS (Uninterrupted Power Supply) |
| CN103066865A (en) * | 2013-02-04 | 2013-04-24 | 电子科技大学 | Three-phase bridgeless power factor correction alternating current-direct current converter |
| CN204733105U (en) * | 2015-05-25 | 2015-10-28 | 江苏苏美达机电科技有限公司 | A kind of DC generation unit |
| CN108528263A (en) * | 2018-06-08 | 2018-09-14 | 重庆聚陆新能源有限公司 | A kind of efficient electric vehicle direct current charge system |
| CN109450276A (en) * | 2018-11-20 | 2019-03-08 | 株洲科盟车辆配件有限责任公司 | Power generator and train |
| CN214314583U (en) * | 2020-07-07 | 2021-09-28 | 青岛瑞阳电子有限公司 | Power take-off and power generation system of road carrying tool |
| CN216252557U (en) * | 2021-11-03 | 2022-04-08 | 易事特储能科技有限公司 | Rectifier module and high-voltage direct-current power supply system |
Non-Patent Citations (1)
| Title |
|---|
| Diode Current Reduction Method of Three-Phase Boost PFC Converter with Semi-Bridgeless PFC Diode;Jeongjun Seo，et al;《2022 IEEE Energy Conversion Congress and Exposition (ECCE)》;20221201;第1-5页 * |
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