WO2017088223A1 - Led lighting driver power supply system for high-voltage alternating current system - Google Patents

Led lighting driver power supply system for high-voltage alternating current system Download PDF

Info

Publication number
WO2017088223A1
WO2017088223A1 PCT/CN2015/098380 CN2015098380W WO2017088223A1 WO 2017088223 A1 WO2017088223 A1 WO 2017088223A1 CN 2015098380 W CN2015098380 W CN 2015098380W WO 2017088223 A1 WO2017088223 A1 WO 2017088223A1
Authority
WO
WIPO (PCT)
Prior art keywords
pulse transformer
phase
alternating current
rectifier
isolated
Prior art date
Application number
PCT/CN2015/098380
Other languages
French (fr)
Chinese (zh)
Inventor
叶阳
Original Assignee
上海泓语电气技术有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 上海泓语电气技术有限公司 filed Critical 上海泓语电气技术有限公司
Publication of WO2017088223A1 publication Critical patent/WO2017088223A1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • 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
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac 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
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac 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
    • 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
    • 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
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Definitions

  • the present invention relates to a power supply system, and more particularly to an LED illumination drive power supply system for a high voltage AC system.
  • the LED driver power supply under normal application conditions is already a mature product, and there are many types and models to choose from.
  • a general solution may not solve the problem.
  • the 480V three-phase AC system has a phase voltage of 277V and a line voltage of 480V. Such systems are generally three-phase three-wire systems, so neutral points cannot be used.
  • LED lighting is used in this system, the LED light needs to be directly connected to the 480V AC line.
  • Conventional LED driver power supplies, even for wide input power types, have an input voltage of only 305V, which is not sufficient for this particular need.
  • Option 1 The step-down method. As shown in Figure 1, a step-down transformer is first connected to the 480V system to reduce the voltage to 220V or 11V, so that the ordinary LED driver can be directly used in the latter stage. This is a relatively easy to think solution, and its shortcomings are more obvious: the addition of transformers increases costs and losses.
  • Option 2 High-voltage drive method. That is, the purchase can withstand 480V drive power, as shown in Figure 2. This allows the luminaire to be directly connected to the system without adding additional components.
  • the disadvantage is that there are few manufacturers of 480V driving power, and the selection range is limited; the power supply volume of the high voltage input is limited.
  • the weight is greater than the ordinary drive power, and the efficiency and power factor are generally not as good as the ordinary drive power; the price of the high-voltage drive power is significantly higher than the ordinary drive power of the same power.
  • the technical problem to be solved by the present invention is to provide an LED lighting driving power supply system for a high voltage alternating current system, which adopts multi-pulse transformer-rectifying technology, has high reliability, high efficiency, high power factor, low harmonic content and low cost.
  • an LED lighting driving power supply system for a high voltage alternating current system including a three-phase alternating current system, an LED lamp, a multi-pulse transformer rectifier, and a non-isolated DC/DC converter. Circuit, where:
  • the three-phase alternating current system and the non-isolated DC/DC conversion circuit are respectively connected to an input end and an output end of the multi-pulse transformer rectifier, and the multi-pulse transformer rectifier comprises an AC side three-phase filter inductor, a multi-pulse transformer, a plurality of three-phase rectifier bridges, a DC-side filter inductor, and a DC capacitor corresponding to the pulse number of the multi-pulse transformer, wherein the AC-side three-phase filter inductor is connected to an input end of the multi-pulse transformer, the three-phase rectifier The AC input end of the bridge is connected to the output end of the multi-pulse transformer, and the DC output end of the three-phase rectifier bridge is directly connected in parallel and connected to the DC side filter inductor and the DC capacitor, and the non-isolated DC/DC converter circuit further Connected to the LED luminaire.
  • the non-isolated DC/DC conversion circuit is a Buck circuit.
  • the AC/DC conversion of the present invention adopts multi-pulse transformer-rectification technology, which has high reliability, high efficiency, high power factor, low harmonic content and low cost.
  • the AC/DC conversion of the present invention adopts an isolation scheme, and the DC voltage can be freely set.
  • the DC voltage can still be set to a reasonable range (for example, 250V).
  • the DC/DC conversion on the DC side can be a non-isolated Buck circuit with high reliability, high efficiency and low cost.
  • the invention reduces costs and automatically achieves three-phase load balancing.
  • the invention is applicable not only to the 480V three-phase AC system in the United States, but also to the 380V three-phase AC system in China, as well as all other three-phase AC systems.
  • Figure 1 is a circuit diagram of a conventional step-down method.
  • FIG. 2 is a circuit diagram of a conventional high voltage driving method.
  • FIG. 3 is a schematic block diagram of an LED lighting driving power supply system for a high voltage alternating current system according to the present invention.
  • FIG. 4 is a specific circuit diagram of an LED lighting driving power supply system for a high voltage alternating current system according to the present invention.
  • Figure 5 is a schematic view showing the structure of a winding in the present invention.
  • FIG. 6 is a schematic structural view of a non-isolated DC/DC conversion circuit according to the present invention.
  • the LED lighting driving power supply system for a high voltage alternating current system includes a three-phase alternating current system (such as 480V), an LED lamp, a multi-pulse transformer rectifier, and a non-isolated DC/DC conversion circuit, wherein a three-phase alternating current system, a non-isolated DC/DC conversion circuit is respectively connected to an input end and an output end of the multi-pulse transformer rectifier, and the voltage of the three-phase alternating current system is first converted into a high voltage direct current through a multi-pulse transformer rectifier
  • the system for example, can set the DC voltage to 250V; the non-isolated DC/DC converter circuit is connected to the LED lamp, Specifically, all LED luminaires are connected to a DC bus (such as a 250V DC bus) through a non-isolated DC/DC converter circuit. Since the 250V DC is isolated from the 480V AC system, the non-isolated DC/DC converter circuit on the LED fixture can be a Buck circuit
  • the multi-pulse transformer rectifier includes an AC side three-phase filter inductor Ldm, an eighteen pulse transformer T1, a first three-phase rectifier bridge B1, a second three-phase rectifier bridge B2, and a third three-phase rectifier bridge.
  • the inductance of each phase of the three-phase filter inductor Ldm on the AC side is 2.6 mH
  • the inductance of the DC side filter inductor Ldc is 5 mH
  • the total capacitance of the DC capacitor Cdc is 550 uF
  • the DC capacitor Cdc is five.
  • the 110uF film capacitors are connected in parallel.
  • the multi-pulse transformer T1 is an eighteen-pulse transformer.
  • the multi-pulse transformer T1 can be a multiple of six pulses of a six-pulse transformer, a twelve-pulse transformer, an eighteen-pulse transformer, a twenty-four-pulse transformer, etc., and can be adjusted as needed, and the rectifier bridge corresponding to the pulse transformer The number is one, two, three, four.
  • the following is an example of an eighteen-pulse transformer.
  • the design parameters of the eighteen-pulse transformer are as follows:
  • Magnetic core silicon steel sheet material, E-type magnetic core.
  • Winding The three sets of windings are wound on three columns, one of which is taken as an example, and its structure is shown in Fig. 5.
  • the winding is divided into six layers, each layer has the same name end, and the innermost layer is the first layer. From the inside out, they are 1, 2, 3, 4, 5, and 6 windings.
  • winding 1 is the primary winding, 557 ⁇
  • winding 2 ⁇ 5 is the secondary winding.
  • the winding 2 is the secondary winding of the secondary side, 205 ⁇ ;
  • the windings 3, 4 are the second and third windings of the secondary side, each 152 ⁇ ;
  • the windings 5, 6 are the fourth and fifth windings of the secondary side, each 81 ⁇ .
  • the primary side diameter is AWG18, and all secondary side diameters are AWG16.
  • the non-isolated DC/DC converter circuit on the luminaire uses a Buck circuit for high efficiency, high reliability, and low cost.
  • the Buck circuit is shown in Figure 6.
  • the input Vin is 250V DC voltage, and the input terminal is connected in parallel with an input capacitor Cin.
  • the MOS transistor MOS1 and the diode D1 are connected in series, the cathode of the diode D1 is connected to the positive terminal of the input capacitor, the source of the MOS transistor MOS1 is connected to the negative terminal of the input capacitor, and the anode of the diode D1 is connected to the drain of the MOS transistor MOS1.
  • the anode of diode D1 is connected to an inductor L1, and the other end of the inductor is connected to the negative terminal of the output capacitor.
  • the positive terminal of the output capacitor is connected to the cathode of diode D1.
  • the voltage on the DC side can be freely set by the transformer ratio. When set below 300V, it is easier to select the protection component and design the back-end circuit.
  • the isolation scheme the efficiency of the AC/DC conversion section will be reduced by two to three percentage points compared to the non-isolation scheme; while the back-end DC/DC conversion section will be greatly simplified, and the non-isolated DC/DC can be implemented by the Buck circuit.
  • the efficiency can be as high as 97 ⁇ 98%, and the isolated DC/DC can only be 95 ⁇ 96% when using the most efficient LLC circuit. In the two stages before and after the use of isolated or non-isolated AC/DC schemes, there is basically no difference in efficiency.
  • isolated AC/DC is used, due to the low DC side voltage, it is easier to implement engineering specific problems such as line protection.

Abstract

An LED lighting driver power supply system for a high-voltage alternating current system, comprising a three-phase alternating current system, a multi-pulse transformer rectifier, and a non-isolated DC/DC converter circuit. The three-phase alternating current system and the non-isolated DC/DC converter circuit are connected respectively to an input end and an output end of the multi-pulse transformer rectifier. The multi-pulse transformer rectifier comprises an alternating current-side three-phase filter inductance (Ldm), a multi-pulse transformer (T1), several three-phase rectifier bridges (B1, B2, and B3) corresponding to the number of pulses of the multi-pulse transformer, a direct current-side filter inductance (Ldc), and a direct current capacitor (Cdc). The alternating current-side three-phase filter inductance is connected to an input end of the multi-pulse transformer. Alternating current input ends of the three-phase rectifier bridges are connected to an output end of the multi-pulse transformer. Direct current output ends of the three-phase rectifier bridges are directly connected in parallel and connected to the direct current-side filter inductance and the direct current capacitor. The LED lighting driver power supply system employs a multi-pulse transformer rectifier technique, has high reliability, high efficiency, high power factor, and low harmonics content, and is inexpensive.

Description

针对高压交流系统的LED照明驱动电源系统LED lighting drive power system for high voltage AC system 技术领域Technical field
本发明涉及一种电源系统，特别是涉及一种针对高压交流系统的LED照明驱动电源系统。The present invention relates to a power supply system, and more particularly to an LED illumination drive power supply system for a high voltage AC system.
背景技术Background technique
一般应用条件下的LED驱动电源已经是成熟产品，有很多种类和型号可供选择。但是在一些特殊应用场合，一般的解决方案不一定可以解决问题。比如在美国的电力系统中存在多个电压体制，其中有一个在工业场合应用较多的是480V三相交流系统，其相电压为277V，线电压为480V。这样的系统一般为三相三线制，因此无法使用中性点。在这个系统中采用LED照明时，需要把LED灯直接接到480V的交流线上。常规的LED驱动电源，即使是宽输入电源类型的，其输入电压最高也只有305V，无法满足这种特殊需要。The LED driver power supply under normal application conditions is already a mature product, and there are many types and models to choose from. However, in some special applications, a general solution may not solve the problem. For example, there are multiple voltage systems in the US power system. One of them is used in industrial applications. The 480V three-phase AC system has a phase voltage of 277V and a line voltage of 480V. Such systems are generally three-phase three-wire systems, so neutral points cannot be used. When LED lighting is used in this system, the LED light needs to be directly connected to the 480V AC line. Conventional LED driver power supplies, even for wide input power types, have an input voltage of only 305V, which is not sufficient for this particular need.
目前在480V系统中使用LED灯一般采用下面两个解决方案：Currently using LED lights in 480V systems generally uses the following two solutions:
方案一：降压法。如图1所示，在480V系统中先接入一个降压变压器，把电压降低到220V或者11V，这样就可以在后级直接采用普通LED驱动电源。这是一种比较容易想到的方案，其缺点也是比较显然的：多加的变压器增加了成本和损耗。Option 1: The step-down method. As shown in Figure 1, a step-down transformer is first connected to the 480V system to reduce the voltage to 220V or 11V, so that the ordinary LED driver can be directly used in the latter stage. This is a relatively easy to think solution, and its shortcomings are more obvious: the addition of transformers increases costs and losses.
方案二：高压驱动法。即采购可以承受480V的驱动电源，如图2所示。这样就可以无需增加额外部件，直接把灯具接入系统。其缺点在于：480V驱动电源的生产厂家很少，选择范围有限；高压输入的驱动电源体积 重量都大于普通驱动电源，而且效率和功率因数等指标一般都不如普通驱动电源；高压驱动电源的价格明显高于同功率的普通驱动电源。Option 2: High-voltage drive method. That is, the purchase can withstand 480V drive power, as shown in Figure 2. This allows the luminaire to be directly connected to the system without adding additional components. The disadvantage is that there are few manufacturers of 480V driving power, and the selection range is limited; the power supply volume of the high voltage input is limited. The weight is greater than the ordinary drive power, and the efficiency and power factor are generally not as good as the ordinary drive power; the price of the high-voltage drive power is significantly higher than the ordinary drive power of the same power.
发明内容Summary of the invention
本发明所要解决的技术问题是提供一种针对高压交流系统的LED照明驱动电源系统，其采用多脉冲变压整流技术，可靠性高，效率高，功率因数高，谐波含量低，成本低。The technical problem to be solved by the present invention is to provide an LED lighting driving power supply system for a high voltage alternating current system, which adopts multi-pulse transformer-rectifying technology, has high reliability, high efficiency, high power factor, low harmonic content and low cost.
本发明是通过下述技术方案来解决上述技术问题的：一种针对高压交流系统的LED照明驱动电源系统，包括三相交流系统、LED灯具、多脉冲变压整流器、以及非隔离DC/DC变换电路，其中：The present invention solves the above technical problems by the following technical solutions: an LED lighting driving power supply system for a high voltage alternating current system, including a three-phase alternating current system, an LED lamp, a multi-pulse transformer rectifier, and a non-isolated DC/DC converter. Circuit, where:
所述三相交流系统、非隔离DC/DC变换电路分别与所述多脉冲变压整流器的输入端和输出端连接，所述多脉冲变压整流器包括交流侧三相滤波电感、多脉冲变压器、与多脉冲变压器的脉冲数相对应的若干个三相整流桥、直流侧滤波电感、以及直流电容，所述交流侧三相滤波电感与所述多脉冲变压器的输入端连接，所述三相整流桥的交流输入端与所述多脉冲变压器的输出端连接，所述三相整流桥的直流输出端直接并联并连接所述直流侧滤波电感和直流电容，所述非隔离DC/DC变换电路还与所述LED灯具连接。The three-phase alternating current system and the non-isolated DC/DC conversion circuit are respectively connected to an input end and an output end of the multi-pulse transformer rectifier, and the multi-pulse transformer rectifier comprises an AC side three-phase filter inductor, a multi-pulse transformer, a plurality of three-phase rectifier bridges, a DC-side filter inductor, and a DC capacitor corresponding to the pulse number of the multi-pulse transformer, wherein the AC-side three-phase filter inductor is connected to an input end of the multi-pulse transformer, the three-phase rectifier The AC input end of the bridge is connected to the output end of the multi-pulse transformer, and the DC output end of the three-phase rectifier bridge is directly connected in parallel and connected to the DC side filter inductor and the DC capacitor, and the non-isolated DC/DC converter circuit further Connected to the LED luminaire.
优选地，所述非隔离DC/DC变换电路是一个Buck电路。Preferably, the non-isolated DC/DC conversion circuit is a Buck circuit.
本发明的积极进步效果在于：The positive effects of the present invention are:
1、本发明的AC/DC的变换采用多脉冲变压整流技术，可靠性高，效率高，功率因数高，谐波含量低，成本低。1. The AC/DC conversion of the present invention adopts multi-pulse transformer-rectification technology, which has high reliability, high efficiency, high power factor, low harmonic content and low cost.
2、本发明的AC/DC的变换采用隔离方案，可以自由设定直流电压，在交流侧电压很高的情况下，仍可把直流电压设定在一个合理范围(比如250V)。 2. The AC/DC conversion of the present invention adopts an isolation scheme, and the DC voltage can be freely set. When the AC side voltage is high, the DC voltage can still be set to a reasonable range (for example, 250V).
3、直流侧的DC/DC变换可以采用非隔离Buck电路，可靠性高，效率高，成本低。3. The DC/DC conversion on the DC side can be a non-isolated Buck circuit with high reliability, high efficiency and low cost.
4、本发明降低成本，而且可以自动做到三相负载平衡。4. The invention reduces costs and automatically achieves three-phase load balancing.
5、本发明不仅适用于美国的480V三相交流系统，同时也适合于我国的380V三相交流系统，以及所有其它的三相交流系统。5. The invention is applicable not only to the 480V three-phase AC system in the United States, but also to the 380V three-phase AC system in China, as well as all other three-phase AC systems.
附图说明DRAWINGS
图1为现有降压法的电路图。Figure 1 is a circuit diagram of a conventional step-down method.
图2为现有高压驱动法的电路图。2 is a circuit diagram of a conventional high voltage driving method.
图3为本发明针对高压交流系统的LED照明驱动电源系统的原理框图。3 is a schematic block diagram of an LED lighting driving power supply system for a high voltage alternating current system according to the present invention.
图4为本发明针对高压交流系统的LED照明驱动电源系统的具体电路图。4 is a specific circuit diagram of an LED lighting driving power supply system for a high voltage alternating current system according to the present invention.
图5为本发明中绕组的结构示意图。Figure 5 is a schematic view showing the structure of a winding in the present invention.
图6为本发明中非隔离DC/DC变换电路的结构示意图。FIG. 6 is a schematic structural view of a non-isolated DC/DC conversion circuit according to the present invention.
具体实施方式detailed description
下面结合附图给出本发明的一个较佳实施例，以详细说明本发明的技术方案。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below in conjunction with the accompanying drawings to explain the embodiments of the present invention.
如图3所示，本发明针对高压交流系统的LED照明驱动电源系统包括三相交流系统(比如480V)、LED灯具、多脉冲变压整流器、以及非隔离DC/DC变换电路，其中，所述三相交流系统、非隔离DC/DC变换电路分别与所述多脉冲变压整流器的输入端和输出端连接，所述三相交流系统的电压先通过一个多脉冲变压整流器转换为一个高压直流系统，比如可以把直流电压设定为250V；所述非隔离DC/DC变换电路与的LED灯具连接， 具体来说，所有的LED灯具通过非隔离DC/DC变换电路连接在直流母线(比如250V直流母线)上。由于250V的直流与480V交流系统隔离，因此LED灯具上的非隔离DC/DC变换电路可以是一个Buck电路。As shown in FIG. 3, the LED lighting driving power supply system for a high voltage alternating current system includes a three-phase alternating current system (such as 480V), an LED lamp, a multi-pulse transformer rectifier, and a non-isolated DC/DC conversion circuit, wherein a three-phase alternating current system, a non-isolated DC/DC conversion circuit is respectively connected to an input end and an output end of the multi-pulse transformer rectifier, and the voltage of the three-phase alternating current system is first converted into a high voltage direct current through a multi-pulse transformer rectifier The system, for example, can set the DC voltage to 250V; the non-isolated DC/DC converter circuit is connected to the LED lamp, Specifically, all LED luminaires are connected to a DC bus (such as a 250V DC bus) through a non-isolated DC/DC converter circuit. Since the 250V DC is isolated from the 480V AC system, the non-isolated DC/DC converter circuit on the LED fixture can be a Buck circuit.
如图4所示，所述多脉冲变压整流器包括交流侧三相滤波电感Ldm、十八脉冲变压器T1、第一三相整流桥B1、第二三相整流桥B2、第三三相整流桥B3、直流侧滤波电感Ldc、以及直流电容Cdc，所述交流侧三相滤波电感Ldm与所述十八脉冲变压器T1的输入端连接，所述第一三相整流桥B1的交流输入端、第二三相整流桥B2的交流输入端、第三三相整流桥B3的交流输入端都与所述十八脉冲变压器T1的输出端连接，所述第一三相整流桥B1的直流输出端、第二三相整流桥B2的直流输出端、第三三相整流桥B3的直流输出端直接并联并连接所述直流侧滤波电感Ldc和直流电容Cdc。As shown in FIG. 4, the multi-pulse transformer rectifier includes an AC side three-phase filter inductor Ldm, an eighteen pulse transformer T1, a first three-phase rectifier bridge B1, a second three-phase rectifier bridge B2, and a third three-phase rectifier bridge. B3, a DC-side filter inductor Ldc, and a DC capacitor Cdc, wherein the AC-side three-phase filter inductor Ldm is connected to an input end of the eighteen-pulse transformer T1, and the AC input terminal of the first three-phase rectifier bridge B1 The AC input end of the two-phase rectifier bridge B2 and the AC input end of the third three-phase rectifier bridge B3 are both connected to the output end of the eighteen-pulse transformer T1, and the DC output end of the first three-phase rectifier bridge B1, The DC output end of the second three-phase rectifier bridge B2 and the DC output end of the third three-phase rectifier bridge B3 are directly connected in parallel and connected to the DC side filter inductor Ldc and the DC capacitor Cdc.
各元件的取值如下：交流侧三相滤波电感Ldm的每相电感量为2.6mH，直流侧滤波电感Ldc的电感量为5mH，直流电容Cdc的总电容量为550uF，直流电容Cdc由五个110uF的薄膜电容并联而成。The values of the components are as follows: the inductance of each phase of the three-phase filter inductor Ldm on the AC side is 2.6 mH, the inductance of the DC side filter inductor Ldc is 5 mH, the total capacitance of the DC capacitor Cdc is 550 uF, and the DC capacitor Cdc is five. The 110uF film capacitors are connected in parallel.
在这个实例中，多脉冲变压器T1为一个十八脉冲变压器。实际应用中，多脉冲变压器T1可以是六脉冲变压器、十二脉冲变压器、十八脉冲变压器、二十四脉冲变压器等六的倍数个脉冲数，可以根据需要进行调整，与脉冲变压器对应的整流桥个数为一、二、三、四个。下面以十八脉冲变压器为例进行说明，该十八脉冲变压器的设计参数如下：In this example, the multi-pulse transformer T1 is an eighteen-pulse transformer. In practical applications, the multi-pulse transformer T1 can be a multiple of six pulses of a six-pulse transformer, a twelve-pulse transformer, an eighteen-pulse transformer, a twenty-four-pulse transformer, etc., and can be adjusted as needed, and the rectifier bridge corresponding to the pulse transformer The number is one, two, three, four. The following is an example of an eighteen-pulse transformer. The design parameters of the eighteen-pulse transformer are as follows:
(1)磁芯：硅钢片材料，E型磁芯。(1) Magnetic core: silicon steel sheet material, E-type magnetic core.
(2)气隙：垫0.1mm。(2) Air gap: pad 0.1 mm.
(3)绕组：三套绕组分别绕在三个柱上，以其中一套为例，其结构如图5所示。绕组分为六层，每层同名端一致，最里面为第一层。从里到外，分别为1、2、3、4、5、6绕组。其中绕组1为原边绕组，557匝；绕组2～ 5为副边绕组。绕组2为副边第一绕组，205匝；绕组3、4为副边第二、三绕组，各152匝；绕组5、6为副边第四、五绕组，各81匝。原边线径为AWG18，所有副边线径为AWG16。(3) Winding: The three sets of windings are wound on three columns, one of which is taken as an example, and its structure is shown in Fig. 5. The winding is divided into six layers, each layer has the same name end, and the innermost layer is the first layer. From the inside out, they are 1, 2, 3, 4, 5, and 6 windings. Wherein winding 1 is the primary winding, 557 匝; winding 2 ～ 5 is the secondary winding. The winding 2 is the secondary winding of the secondary side, 205 匝; the windings 3, 4 are the second and third windings of the secondary side, each 152 匝; the windings 5, 6 are the fourth and fifth windings of the secondary side, each 81 匝. The primary side diameter is AWG18, and all secondary side diameters are AWG16.
(4)出线：所有出线长度20cm。(4) Outlet: All outlets are 20cm in length.
(5)温度等级：155度。(5) Temperature rating: 155 degrees.
(6)绝缘：第一层与磁芯之间：3750Vdc；第一层与第二层之间：3750Vdc；其余各层之间：2000Vdc；第六层与磁芯之间：3750Vdc。(6) Insulation: between the first layer and the core: 3750Vdc; between the first layer and the second layer: 3750Vdc; between the remaining layers: 2000Vdc; between the sixth layer and the core: 3750Vdc.
在这个实例中，灯具上的非隔离DC/DC变换电路采用Buck电路，从而实现高效率，高可靠性，和低成本。Buck电路如图6所示。其输入Vin为250V直流电压，输入端并联一个输入电容Cin。MOS管MOS1和二极管D1串联，二极管D1的阴极接在输入电容正端，MOS管MOS1的源极接在输入电容负端，二极管D1的阳极和MOS管MOS1的漏极相连。二极管D1的阳极连接一个电感L1，电感的另一端接输出电容的负端。输出电容正端连接二极管D1的阴极。这个Buck电路的功能就是通过对MOS管MOS1的栅极的控制，把输入的250V直流电压转换为直流恒流输出，电流值为Iout。In this example, the non-isolated DC/DC converter circuit on the luminaire uses a Buck circuit for high efficiency, high reliability, and low cost. The Buck circuit is shown in Figure 6. The input Vin is 250V DC voltage, and the input terminal is connected in parallel with an input capacitor Cin. The MOS transistor MOS1 and the diode D1 are connected in series, the cathode of the diode D1 is connected to the positive terminal of the input capacitor, the source of the MOS transistor MOS1 is connected to the negative terminal of the input capacitor, and the anode of the diode D1 is connected to the drain of the MOS transistor MOS1. The anode of diode D1 is connected to an inductor L1, and the other end of the inductor is connected to the negative terminal of the output capacitor. The positive terminal of the output capacitor is connected to the cathode of diode D1. The function of this Buck circuit is to convert the input 250V DC voltage into a DC constant current output by controlling the gate of the MOS transistor MOS1, and the current value is Iout.
当采用隔离的AC/DC方案时，直流侧的电压可以通过变压器变比自由设定，当设定在300V以下时，比较容易选择保护元件和设计后端电路。当采用隔离方案时，AC/DC变换部分的效率将比非隔离方案降低两到三个百分点；而后端DC/DC变换部分将得到很大的简化，非隔离的DC/DC采用Buck电路即可，效率可以高达97～98％，而隔离的DC/DC在采用效率最高的LLC电路时，效率最高也只能是95～96％。综合前后两级，采用隔离或非隔离的AC/DC方案，效率方面基本没有差别，而采用隔离的AC/DC时，由于直流侧电压较低，比较容易实现线路保护等工程具体问题。When using an isolated AC/DC scheme, the voltage on the DC side can be freely set by the transformer ratio. When set below 300V, it is easier to select the protection component and design the back-end circuit. When using the isolation scheme, the efficiency of the AC/DC conversion section will be reduced by two to three percentage points compared to the non-isolation scheme; while the back-end DC/DC conversion section will be greatly simplified, and the non-isolated DC/DC can be implemented by the Buck circuit. The efficiency can be as high as 97~98%, and the isolated DC/DC can only be 95~96% when using the most efficient LLC circuit. In the two stages before and after the use of isolated or non-isolated AC/DC schemes, there is basically no difference in efficiency. When isolated AC/DC is used, due to the low DC side voltage, it is easier to implement engineering specific problems such as line protection.
以上所述的具体实施例，对本发明的解决的技术问题、技术方案和有 益效果进行了进一步详细说明，所应理解的是，以上所述仅为本发明的具体实施例而已，并不用于限制本发明，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。 The specific embodiments described above, the technical problems, technical solutions, and solutions to the present invention are The effect is further described in detail, and it is to be understood that the foregoing is only the embodiment of the present invention, and is not intended to limit the invention, any modifications made within the spirit and scope of the invention And equivalent replacements, improvements, etc., are intended to be included within the scope of the present invention.

Claims (2)

  1. 一种针对高压交流系统的LED照明驱动电源系统，其特征在于，其包括三相交流系统、LED灯具、多脉冲变压整流器、以及非隔离DC/DC变换电路，其中：An LED lighting driving power supply system for a high voltage alternating current system, characterized in that it comprises a three-phase alternating current system, an LED lamp, a multi-pulse transformer rectifier, and a non-isolated DC/DC converter circuit, wherein:
    所述三相交流系统、非隔离DC/DC变换电路分别与所述多脉冲变压整流器的输入端和输出端连接，所述多脉冲变压整流器包括交流侧三相滤波电感、多脉冲变压器、与多脉冲变压器的脉冲数相对应的若干个三相整流桥、直流侧滤波电感、以及直流电容，所述交流侧三相滤波电感与所述多脉冲变压器的输入端连接，所述三相整流桥的交流输入端与所述多脉冲变压器的输出端连接，所述三相整流桥的直流输出端直接并联并连接所述直流侧滤波电感以及直流电容，所述非隔离DC/DC变换电路还与所述LED灯具连接。The three-phase alternating current system and the non-isolated DC/DC conversion circuit are respectively connected to an input end and an output end of the multi-pulse transformer rectifier, and the multi-pulse transformer rectifier comprises an AC side three-phase filter inductor, a multi-pulse transformer, a plurality of three-phase rectifier bridges, a DC-side filter inductor, and a DC capacitor corresponding to the pulse number of the multi-pulse transformer, wherein the AC-side three-phase filter inductor is connected to an input end of the multi-pulse transformer, the three-phase rectifier An AC input end of the bridge is connected to an output end of the multi-pulse transformer, and a DC output end of the three-phase rectifier bridge is directly connected in parallel and connected to the DC side filter inductor and a DC capacitor, and the non-isolated DC/DC conversion circuit further Connected to the LED luminaire.
  2. 如权利要求1所述的针对高压交流系统的LED照明驱动电源系统，其特征在于，所述非隔离DC/DC变换电路是一个Buck电路。 The LED lighting driving power supply system for a high voltage alternating current system according to claim 1, wherein said non-isolated DC/DC converting circuit is a Buck circuit.
PCT/CN2015/098380 2015-11-23 2015-12-23 Led lighting driver power supply system for high-voltage alternating current system WO2017088223A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510819484.7 2015-11-23
CN201510819484.7A CN105305854A (en) 2015-11-23 2015-11-23 LED illumination driving power supply system for high-voltage AC system

Publications (1)

Publication Number Publication Date
WO2017088223A1 true WO2017088223A1 (en) 2017-06-01

Family

ID=55202727

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/098380 WO2017088223A1 (en) 2015-11-23 2015-12-23 Led lighting driver power supply system for high-voltage alternating current system

Country Status (2)

Country Link
CN (1) CN105305854A (en)
WO (1) WO2017088223A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107360648A (en) * 2017-07-28 2017-11-17 株洲麦格米特电气有限责任公司 A kind of two paths of LED of Buck topologys flows drive circuit
CN108521694A (en) * 2018-03-29 2018-09-11 电子科技大学 A kind of LED half-bridge circuits of band feedback frequency-conversion constant-current driving
US11741862B2 (en) 2020-11-24 2023-08-29 Samsung Electronics Co., Ltd Augmented reality wearable electronic device including camera

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201336757Y (en) * 2009-01-22 2009-10-28 陈咸丰 Multi-way constant-current power supply used for high-power LED light source
CN201708976U (en) * 2009-12-28 2011-01-12 英飞特电子（杭州）有限公司 Driving circuit capable of realizing double-channel or even-channel or odd-channel LED precise constant current
CN202603018U (en) * 2012-06-18 2012-12-12 胡光文 LED (light-emitting diode) street lamp control cabinet
CN105120562A (en) * 2015-08-31 2015-12-02 上海泓语电气技术有限公司 High-voltage DC LED lighting driving circuit based on multi-pulse rectification
CN205283421U (en) * 2015-11-23 2016-06-01 上海泓语电气技术有限公司 LED lighting driver electrical power generating system to high voltage system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101989817B (en) * 2009-07-29 2014-12-03 通用电气公司 Three-phase LED power supply
CN201758470U (en) * 2010-01-04 2011-03-09 叶明宝 Direct current supply system for LED street lamps
CN102176806B (en) * 2011-03-15 2014-03-05 谢俊国 Multichannel multiphase-driving LED (Light Emitting Diode) power supply
CN102438378B (en) * 2011-12-20 2013-10-30 江苏宏微科技有限公司 LED (Light Emitting Diode) illumination intelligent control system
CN102612223A (en) * 2012-03-02 2012-07-25 苏州浩森电子科技有限公司 LED driving device and control method thereof
CN103716968A (en) * 2014-01-09 2014-04-09 合肥云杉光电科技有限公司 Road illumination method with direct-current high-voltage direct-driven LEDs converted through three-phase alternating current electric supply

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201336757Y (en) * 2009-01-22 2009-10-28 陈咸丰 Multi-way constant-current power supply used for high-power LED light source
CN201708976U (en) * 2009-12-28 2011-01-12 英飞特电子（杭州）有限公司 Driving circuit capable of realizing double-channel or even-channel or odd-channel LED precise constant current
CN202603018U (en) * 2012-06-18 2012-12-12 胡光文 LED (light-emitting diode) street lamp control cabinet
CN105120562A (en) * 2015-08-31 2015-12-02 上海泓语电气技术有限公司 High-voltage DC LED lighting driving circuit based on multi-pulse rectification
CN205283421U (en) * 2015-11-23 2016-06-01 上海泓语电气技术有限公司 LED lighting driver electrical power generating system to high voltage system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107360648A (en) * 2017-07-28 2017-11-17 株洲麦格米特电气有限责任公司 A kind of two paths of LED of Buck topologys flows drive circuit
CN108521694A (en) * 2018-03-29 2018-09-11 电子科技大学 A kind of LED half-bridge circuits of band feedback frequency-conversion constant-current driving
CN108521694B (en) * 2018-03-29 2023-09-22 电子科技大学 LED half-bridge circuit with feedback variable-frequency constant-current drive
US11741862B2 (en) 2020-11-24 2023-08-29 Samsung Electronics Co., Ltd Augmented reality wearable electronic device including camera

Also Published As

Publication number Publication date
CN105305854A (en) 2016-02-03

Similar Documents

Publication Publication Date Title
CN105720840B (en) Power conversion unit and its setting method
US10536998B2 (en) Switching power supply having active power factor correction
US11013083B2 (en) Electrolytic capacitorless, selectively dimmable LED driver
CN103917017B (en) A kind of single stage type no electrolytic capacitor AC/DC LED constant current drives power supply
Mangkalajan et al. A single-stage LED driver based on ZCDS class-E current-driven rectifier as a PFC for street-lighting applications
CN101873739B (en) Current-balancing supply circuit with multiple groups of DC loads
WO2010054523A1 (en) Combination of a drive power supply of high-power led lamp and matched lamps
CN102215615A (en) Driving circuit for LED (light emitting diode) lamp
CN102118906A (en) DC supply mode of LED street lamp
WO2017088223A1 (en) Led lighting driver power supply system for high-voltage alternating current system
US7825606B2 (en) Fluorescent lamp driver power
Ma et al. A single‐stage integrated bridgeless AC/DC converter for electrolytic capacitor‐less LED lighting applications
CN104202862A (en) Single-stage type LED drive power supply without electrolytic capacitor
Ryu et al. New multi-channel LEDs driving methods using current transformer in electrolytic capacitor-less AC-DC drivers
US20110216567A1 (en) Single switch inverter
JP7352327B1 (en) Resonant current controlled DC power supply
CN104507238A (en) LED (light emitting diode) driving power supply without electrolytic capacitor
Gupta et al. A review and analysis of topologies of light emitting diode (LED) drivers
CN105120562A (en) High-voltage DC LED lighting driving circuit based on multi-pulse rectification
CN110299849A (en) A kind of interleaving shunt-wound two-transistor forward power converter of phase shifting control
CN205283421U (en) LED lighting driver electrical power generating system to high voltage system
Kang et al. High frequency AC-LED driving for street light
CN204291523U (en) A kind of LED drive power of no electrolytic capacitor
CN113689823A (en) High-power-factor single-switch two-path unbalanced output OLED driver
CN201758470U (en) Direct current supply system for LED street lamps

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15909134

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 01/10/2018)

122 Ep: pct application non-entry in european phase

Ref document number: 15909134

Country of ref document: EP

Kind code of ref document: A1