CN217720728U - Novel power unit is administered to harmonic for lighting load - Google Patents

Novel power unit is administered to harmonic for lighting load Download PDF

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Publication number
CN217720728U
CN217720728U CN202220649033.9U CN202220649033U CN217720728U CN 217720728 U CN217720728 U CN 217720728U CN 202220649033 U CN202220649033 U CN 202220649033U CN 217720728 U CN217720728 U CN 217720728U
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igbt module
circuit
inductor
igbt
harmonic suppression
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叶瑾
李宁
王国冬
邱寒
马刚
王汇明
赵小宇
翟亚军
高润明
陈伟夫
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Southwest Municipal Engineering Design and Research Institute of China
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Southwest Municipal Engineering Design and Research Institute of China
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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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/40—Arrangements for reducing harmonics

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Abstract

The utility model discloses a novel harmonic suppression power unit for lighting loads, which comprises a harmonic suppression power unit and a harmonic suppression IGBT circuit which are electrically connected; the harmonic suppression IGBT circuit is an IGBT circuit adopting a twelve-pulse circuit and energy storage capacitor structure mode; according to the invention, the number of power units is managed by combining harmonics as required, so that the lighting echo harmonics are effectively filtered, the zero line current is reduced and eliminated, the zero voltage is reduced, the problem of the power quality of lighting equipment and a control system caused by the harmonics is fundamentally solved, the faults of main distribution equipment of a switch and a transformer caused by resonance are avoided, and the fire hazard of zero line overheating caused by the harmonics is eliminated; meanwhile, the harmonic wave treatment IGBT circuit adopts a structure mode of a twelve-pulse circuit and an energy storage capacitor, so that the harmonic wave treatment power unit can stably and effectively filter basic harmonic wave quantity and compensate reactive power quantity, and then the variable harmonic wave part is filtered through the quick response of the IGBT, and the problem of the electric energy quality of an illumination loop is solved.

Description

Novel power unit is administered to harmonic for lighting load
Technical Field
The utility model relates to a power electronics and communication control field, concretely relates to novel power unit is administered with harmonic to illumination load.
Background
Data information processing, building control and lighting control in the current building industry; industrial process manufacturing and equipment requirements, realization of high-tech products, improvement of productivity and product competitiveness increasingly depend on high-quality power supply, and quality parameters of power consumption power supplies are not only basic technical indexes of voltage, frequency and the like in an original power system, but also relate to safe, stable, economic and reliable operation of the whole power system and equipment, electrical environment protection, energy conservation, consumption reduction and the like. The improvement of the power quality has important significance on safe, economic and reliable operation of a power grid, guarantee of normal operation of industrial product quality and scientific experiments, stable control of buildings, improvement of lighting quality and reduction of energy consumption.
The same type of harmonic wave treatment products in the market are basically used for treating equipment such as industrial frequency conversion, metallurgical smelting furnaces and the like, the structure mostly adopts a wire screwing type structure, and when the equipment is subjected to fault maintenance or replacement, a wiring terminal needs to be sequentially screwed off and reconnected; the problem that an installer neglects to connect wrong wires can occur in the reinstallation process, the maintenance time cost is high, the product function is single, only the single compensation reactive power or the harmonic filtering function is provided, the functions cannot be combined and selected or simultaneously provided, so that the power quality can be comprehensively managed, meanwhile, the harmonic wave of the building lighting loop is not designed, the characteristics of novel lighting LEDs and lighting control cannot be solved, and the lighting load harmonic wave cannot be managed well and thoroughly.
SUMMERY OF THE UTILITY MODEL
The aforesaid is not enough among the prior art, the utility model provides a novel power unit is administered to harmonic for lighting load.
In order to achieve the above object, the utility model discloses a technical scheme be:
a novel harmonic suppression power unit for lighting loads comprises a harmonic suppression power unit and a harmonic suppression IGBT circuit, wherein the harmonic suppression power unit is electrically connected with the harmonic suppression IGBT circuit;
the harmonic suppression IGBT circuit is an IGBT circuit adopting a twelve-pulse circuit and energy storage capacitor structure mode.
Preferably, the harmonic suppression IGBT circuit comprises an output filter, an IGBT module circuit, an energy storage capacitor, a solid-state filter circuit, a lighting load and a power module;
wherein the power supply module is connected with the inductance coil ST in parallelaAnd an inductance coil STbAnd an inductance coil STcAnd the output filter, the IGBT module circuit, the solid-state filter circuit and the lighting load are respectively and electrically connected.
Preferably, the harmonic suppression IGBT circuit comprises an output filter, an IGBT module circuit, an energy storage capacitor, a solid-state filter circuit, a lighting load and a power module;
the power supply module is electrically connected with the output filter, the IGBT module circuit, the energy storage capacitor, the solid-state filtering circuit and the lighting load through the inductance coil.
Preferably, the IGBT module circuit is specifically:
comprising an inductance LAInductor LBInductor LCThe IGBT module comprises a first filter capacitor, a second filter capacitor, a first IGBT module, a second IGBT module, a third IGBT module, a fourth IGBT module, a fifth IGBT module and a sixth IGBT module;
inductor LAInductor LBInductor LCOne end of each of which is connected to the inductance coil STaAnd an inductance coil STbAnd an inductance coil STcIs connected to the output terminal of the inductor LAThe other end of the first IGBT module is respectively connected with one end of the first IGBT module and one end of the second IGBT module; the other end of the first IGBT module is respectively connected with one end of a third IGBT module, one end of a fifth IGBT module and one end of a first filter capacitor; the other end of the second IGBT module is connected with one end of a fourth IGBT module and one end of a sixth IGBT module respectively; inductor LBThe other end of the first IGBT module is respectively connected with the other end of the third IGBT module and the other end of the fourth IGBT module; inductor LCThe other end of the second IGBT module is respectively connected with the other end of the fifth IGBT module and the other end of the sixth IGBT module; and the other end of the first filter capacitor is connected with one end of the sixth IGBT module through the first filter capacitor.
Preferably, the solid-state filter circuit is specifically:
comprises at least one solid-state filter sub-circuit;
wherein the solid-state filtering sub-circuit comprises an inductor LDInductor LEInductor LFCapacitor C1Capacitor C2Capacitor C3(ii) a Inductor LDOne end of (1), an inductance LEOne end of (1), an inductance LFOne end of each of the first and second inductors ST is connected in parallel with the first inductor STaAnd an inductance coil STbAnd an inductance coil STcIs connected to the output terminal of the inductor LDThe other end of each of the first and second capacitors is connected to a capacitor C1One terminal of (1), a capacitor C2Is connected with one end of the connecting rod; inductor LEAnother terminal of which is respectively a capacitor C1Another terminal of (1), a capacitor C3Is connected with one end of the connecting rod; inductor LFThe other end of each of the first and second capacitors is connected to a capacitor C3In addition toOne terminal, capacitor C2The other end of the connecting rod is connected.
Preferably, more than one harmonic suppression power unit and one harmonic suppression power unit are installed in the novel lighting load harmonic suppression power unit in parallel through multiple machines.
The utility model discloses following beneficial effect has:
a novel harmonic suppression power unit for lighting loads comprises a harmonic suppression power unit and a harmonic suppression IGBT circuit, wherein the number of the harmonic suppression power units is combined according to requirements, lighting echo harmonics are effectively filtered, zero line current is reduced and eliminated, zero earth voltage is lowered, the problem of electric energy quality of lighting equipment and a control system caused by the harmonics is fundamentally solved, faults of switches and main distribution equipment of a transformer caused by resonance are avoided, and fire hazard of zero line overheating caused by the harmonics is eliminated; meanwhile, the harmonic wave treatment IGBT circuit adopts a structure mode of a twelve-pulse circuit and an energy storage capacitor, so that the harmonic wave treatment power unit can stably and effectively filter basic harmonic wave quantity and compensate reactive power quantity, and then the variable harmonic wave part is filtered through the quick responsiveness of the IGBT, and the problem of the quality of electric energy of an illumination loop is solved.
Drawings
Fig. 1 is a schematic structural diagram of a novel harmonic suppression power unit for lighting loads according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a harmonic suppression unit according to an embodiment of the present invention;
FIG. 3 is a top view of a harmonic suppression unit according to an embodiment of the present invention;
fig. 4 is a bottom view of the harmonic suppression unit in the embodiment of the present invention;
FIG. 5 is a schematic diagram of a harmonic suppression IGBT circuit according to an embodiment of the present invention;
fig. 6 is an expanded installation diagram of an embodiment of the present invention, wherein fig. 6 (a) is and fig. 6 (b) is;
fig. 7 is a diagram of power distribution installation in an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that all modifications made by the invention conceived of by the present invention are protected as long as they come within the spirit and scope of the invention as defined and defined by the appended claims.
The embodiment of the utility model provides a novel harmonic treatment power unit for lighting load, which comprises a harmonic treatment power unit and a harmonic treatment IGBT circuit, wherein the harmonic treatment power unit is electrically connected with the harmonic treatment IGBT circuit;
the harmonic suppression IGBT circuit is an IGBT circuit adopting a twelve-pulse circuit and energy storage capacitor structure mode.
The harmonic suppression power unit for the novel lighting load in the embodiment of the utility model can adopt a direct wall-hanging installation mode or a combined installation mode;
the combined installation mode is specifically that the number of the novel harmonic suppression power units for the lighting load is determined according to the required capacity, and multiple devices are connected in parallel.
Preferably, more than one harmonic suppression power unit and one harmonic suppression power unit are installed in the novel lighting load harmonic suppression power unit in parallel through multiple machines.
In practice, as shown in fig. 1, the harmonic suppression power unit for the novel lighting load can adopt a direct wall-mounted installation mode or a combined installation mode, wherein the direct wall-mounted appearance is used for placing the device in an insufficient space of a field lighting power distribution cabinet, and the device is directly installed on the edge of the power distribution cabinet, hung on a wall and connected with the power distribution cabinet in a lead wire mode; the combined installation is that the device can be according to reactive compensation capacity and harmonic demand size, and the quantity of selection device carries out many devices parallel connection, connects in parallel each other through the wiring between the device, and the device is placed in block terminal or switch board, makes up into a large capacity device that satisfies the demand by a plurality of small capacity devices, and the capacity of output during operation is exactly the capacity value that a plurality of small devices superpose mutually.
The harmonic suppression power unit in the embodiment of the utility model comprises an aviation socket stationary contact, a top heat dissipation air duct, a bottom heat dissipation air duct, a grounding terminal, a start-stop switch, a 5G and memory card expansion interface, a communication address setter and a cover plate;
the static contact of the aviation socket is arranged at the top of the harmonic suppression power unit;
the grounding terminal is arranged on one side of the static contact of the aviation socket;
the top radiating air duct is arranged at the lower end of the static contact of the aviation socket;
the bottom heat dissipation air duct is arranged at the bottom of the harmonic control power unit;
the cover plate is arranged on the top heat dissipation air duct;
the start-stop switch is arranged at the bottom of the harmonic suppression power unit;
the 5G and the memory card expansion interface are arranged on one side of the start-stop switch;
the communication address setting device is arranged above the bottom heat dissipation air duct.
As shown in fig. 2, a top view of the harmonic suppression power unit is shown, an aviation socket stationary contact (including a power line, a current sampling signal, a communication control signal and the like) is arranged in a ring, wiring is very convenient and firm, disassembly during maintenance is convenient, safety of maintainers is guaranteed, and other parts are a heat dissipation air duct, a grounding terminal, a cover plate and the like;
as shown in fig. 3, the harmonic suppression power unit bottom view includes a start/stop switch, a communication address setting device, a 5G and memory card expansion interface, and a heat dissipation duct.
Preferably, the wave governing IGBT circuit includes an output filter, an IGBT module circuit, an energy storage capacitor, a solid state filter circuit, a lighting load, and a power module;
wherein the power supply module is connected with the inductor ST in parallelaAnd an inductance coil STbAnd an inductance coil STcAnd the output filter, the IGBT module circuit, the solid-state filter circuit and the lighting load are respectively and electrically connected.
Preferably, the IGBT module circuit is specifically:
comprising an inductance LAInductor LBAn inductor LCThe IGBT module comprises a first filter capacitor, a second filter capacitor, a first IGBT module, a second IGBT module, a third IGBT module, a fourth IGBT module, a fifth IGBT module and a sixth IGBT module;
inductor LAInductor LBInductor LCOne end of each of which is connected to the inductance coil STaAnd an inductance coil STbAnd an inductance coil STcIs connected to the output terminal of the inductor LAThe other end of the first IGBT module is respectively connected with one end of the first IGBT module and one end of the second IGBT module; the other end of the first IGBT module is connected with one end of a third IGBT module, one end of a fifth IGBT module and one end of a first filter capacitor respectively; the other end of the second IGBT module is connected with one end of a fourth IGBT module and one end of a sixth IGBT module respectively; inductor LBThe other end of the first IGBT module is respectively connected with the other end of the third IGBT module and the other end of the fourth IGBT module; inductor LCThe other end of the first IGBT module is connected with the other end of the fifth IGBT module and the other end of the sixth IGBT module respectively; and the other end of the first filter capacitor is connected with one end of the sixth IGBT module through the first filter capacitor.
The embodiment of the utility model provides an adopt among the prior art model to be MDS150A 1200V's IGBT module.
Preferably, the solid-state filter circuit is specifically:
comprises at least one solid-state filter sub-circuit;
wherein the solid-state filtering sub-circuit comprises an inductor LDAn inductor LEInductor LFCapacitor C1Capacitor C2Capacitor C3(ii) a Inductor LDOne end of (1), an inductance LEOne end of (1), an inductance LFOne end of each of the first and second inductors ST is connected in parallel with the first inductor STaAnd an inductance coil STbAnd an inductance coil STcIs connected to the output terminal of the inductor LDThe other end of each of the first and second capacitors is connected to a capacitor C1One terminal of (1), a capacitor C2Is connected with one end of the connecting rod; inductor LEAnother terminal of which is respectively a capacitor C1Another end of (2)Capacitor C3Is connected with one end of the connecting rod; inductor LFThe other end of each of the first and second capacitors is connected to a capacitor C3Another terminal of (1), a capacitor C2And the other end of the two is connected.
In the embodiment of the utility model, the harmonic wave control IGBT circuit adopts a twelve-pulse circuit and energy storage capacitor structure mode; as shown in fig. 4, the harmonic suppression IGBT circuit structure adopts a twelve-pulse circuit plus energy storage capacitor structure, and a solid-state filter circuit is added, so that the power unit firstly stably and effectively filters out the basic harmonic quantity and compensates for the reactive quantity, and then filters out the variable harmonic part through the fast responsiveness of the IGBT.
In the embodiment of the present invention, as shown in fig. 5 and 6, the harmonic suppression power unit is led to the terminal installation bus by a dedicated connection cable, the communication lines from unit 1 to unit n are all connected together, unit 1 is communicated to each module through the communication line via current sampling, and the working state of each module and the data such as the working state of the reading device can be controlled through communication.
As shown in fig. 7, the novel harmonic suppression power unit for the lighting load is formed by combining harmonic suppression power units, wherein, as shown in fig. 7 (a), a side view of the novel harmonic suppression power unit for the lighting load is shown, as shown in fig. 7 (b), a front view of the novel harmonic suppression power unit for the lighting load is shown, the units are superposed inside the device, the number of the units is determined according to the required capacity, the device is assembled in a modularized manner, the units are convenient and simple to install, disassemble and replace and can be operated without needing a very professional person, the units are mutually connected by a plug connecting wire in a cabinet, and when the device is operated, a main unit is arranged as a host, and other units are slaves and are controlled by the main unit; if the main unit is damaged in the operation process, the next unit is automatically allocated to be the main unit, an alarm is given on a display man-machine, the device continues to work, and the original main unit is offline, so that the continuity of optimizing the power quality is not influenced.
It will be appreciated by those of ordinary skill in the art that the embodiments described herein are intended to assist the reader in understanding the principles of the invention and are to be construed as being without limitation to such specifically recited embodiments and examples. Those skilled in the art can make various other specific changes and combinations based on the teachings of the present invention without departing from the spirit of the invention, and these changes and combinations are within the scope of the invention.

Claims (5)

1. A novel harmonic suppression power unit for lighting loads is characterized by comprising a harmonic suppression power unit and a harmonic suppression IGBT circuit, wherein the harmonic suppression power unit is electrically connected with the harmonic suppression IGBT circuit;
the harmonic suppression IGBT circuit is an IGBT circuit adopting a twelve-pulse circuit and energy storage capacitor structure mode.
2. The harmonic suppression power unit for the novel lighting load according to claim 1, wherein the harmonic suppression IGBT circuit comprises an output filter, an IGBT module circuit, an energy storage capacitor, a solid state filter circuit, the lighting load and a power module;
wherein the power supply module is connected with the inductance coil ST in parallelaAnd an inductance coil STbAnd an inductance coil STcAnd the output filter, the IGBT module circuit, the solid-state filter circuit and the lighting load are respectively and electrically connected.
3. The novel harmonic suppression power unit for the lighting load according to claim 2, wherein the IGBT module circuit is specifically:
comprising an inductance LAInductor LBAn inductor LCThe IGBT module comprises a first filter capacitor, a second filter capacitor, a first IGBT module, a second IGBT module, a third IGBT module, a fourth IGBT module, a fifth IGBT module and a sixth IGBT module;
inductor LAInductor LBInductor LCOne end of each of which is connected to the inductance coil STaAnd an inductance coil STbAnd an inductance coil STcIs connected to the output terminal of the inductor LAThe other end of the first IGBT module is connected with one end of the first IGBT module and one end of the second IGBT module respectively; the other end of the first IGBT module is respectively connected with one end of the third IGBT module, one end of the fifth IGBT module and the first filterOne end of the capacitor is connected; the other end of the second IGBT module is connected with one end of a fourth IGBT module and one end of a sixth IGBT module respectively; inductor LBThe other end of the first IGBT module is connected with the other end of the third IGBT module and the other end of the fourth IGBT module respectively; inductor LCThe other end of the first IGBT module is connected with the other end of the fifth IGBT module and the other end of the sixth IGBT module respectively; and the other end of the first filter capacitor is connected with one end of the sixth IGBT module through the first filter capacitor.
4. The novel harmonic suppression power unit for the lighting load according to claim 3, wherein the solid-state filter circuit is specifically:
comprises at least one solid-state filter sub-circuit;
wherein the solid-state filtering sub-circuit comprises an inductor LDInductor LEInductor LFCapacitor C1Capacitor C2Capacitor C3(ii) a Inductor LDOne end of (1), an inductance LEOne end of (1), an inductance LFAre respectively connected with the parallel inductance coils STaAnd an inductance coil STbAnd an inductance coil STcIs connected to the output terminal of the inductor LDThe other end of each of the first and second capacitors is connected to a capacitor C1One terminal of (1), a capacitor C2Is connected with one end of the connecting rod; inductor LEAnother terminal of (2) is respectively a capacitor C1Another terminal of (C), a capacitor C3Is connected with one end of the connecting rod; inductor LFThe other end of each of the first and second capacitors is connected to a capacitor C3Another terminal of (C), a capacitor C2The other end of the connecting rod is connected.
5. The harmonic suppression power unit for the novel lighting load according to claim 1, wherein a plurality of the harmonic suppression power units and one harmonic suppression power unit are installed in parallel in the harmonic suppression power unit for the novel lighting load through a plurality of machines.
CN202220649033.9U 2022-03-23 2022-03-23 Novel power unit is administered to harmonic for lighting load Active CN217720728U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202220649033.9U CN217720728U (en) 2022-03-23 2022-03-23 Novel power unit is administered to harmonic for lighting load

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202220649033.9U CN217720728U (en) 2022-03-23 2022-03-23 Novel power unit is administered to harmonic for lighting load

Publications (1)

Publication Number Publication Date
CN217720728U true CN217720728U (en) 2022-11-01

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