CN104638901A - Energy-saving type IGBT (insulated gate bipolar transistor) serial inverting medium-frequency power source device - Google Patents

Energy-saving type IGBT (insulated gate bipolar transistor) serial inverting medium-frequency power source device Download PDF

Info

Publication number
CN104638901A
CN104638901A CN 201510096901 CN201510096901A CN104638901A CN 104638901 A CN104638901 A CN 104638901A CN 201510096901 CN201510096901 CN 201510096901 CN 201510096901 A CN201510096901 A CN 201510096901A CN 104638901 A CN104638901 A CN 104638901A
Authority
CN
Grant status
Application
Patent type
Prior art keywords
integrated circuit
resistor
series
pin
via
Prior art date
Application number
CN 201510096901
Other languages
Chinese (zh)
Other versions
CN104638901B (en )
Inventor
陈红梅
王永华
Original Assignee
潍坊市金华信电炉制造有限公司
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

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M7/00Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53Conversion of dc power input into ac 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
    • H02M7/537Conversion of dc power input into ac 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, e.g. single switched pulse inverters
    • H02M7/5387Conversion of dc power input into ac 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, e.g. single switched pulse inverters in a bridge configuration
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion
    • Y02B70/12Power factor correction technologies for power supplies
    • Y02B70/126Active technologies

Abstract

The invention relates to an energy-saving type IGBT (insulated gate bipolar transistor) serial inverting medium-frequency power source device. The energy-saving type IGBT serial inverting medium-frequency power source device comprises an IGBT serial inverting circuit, a rectifying main circuit, a driving power source circuit, a pressure-controlled oscillation circuit, a rectifying pulse forming circuit and a protection signal circuit which are electrically connected. The energy-saving type IGBT serial inverting medium-frequency power source device has the advantages that the power factor is high, the harmonic pollution is little, the circuit loss is small, the electric consumption amount is little, the melting speed is high, the energy source is saved, and the pollution to a power grid and environments is avoided.

Description

节能型IGBT串联逆变中频电源装置 Saving type IGBT inverter frequency power supply means in series

技术领域 FIELD

[0001] 本发明涉及一种节能型IGBT串联逆变中频电源装置,属于变频变流技术及铸造技术领域。 [0001] The present invention relates to an energy-saving type IGBT series inverter frequency power supply means, frequency converter technology and belonging to the foundry art.

背景技术 Background technique

[0002] 随着感应加热应用领域日益不断的扩大,以及电力半导体器技术的不断发展,同时为响应国家节能减排政策的号召,中频感应加热电源正向节能、快速、无谐波干扰方向发展。 [0002] With the growing field of induction heating applications continue to expand, as well as the continuous development of power semiconductor technology, as well as the response to the call of the national energy conservation policy, medium frequency induction heating power forward energy saving, fast, no harmonic interference direction . 在控制系统上,则是由模拟控制转向数字化控制发展,以提高控制系统的集成度和稳定性;在智能控制方面,通过PLC及组态软件等自动控制设备,逐步实现整套设备的智能化;在逆变形式方面,则由并联逆变向串联逆变方面发展,以提高输出电压,降低槽路电流,减少线路损耗。 On the control system, it is controlled by the analog to digital control development in order to improve integration and stability control system; intelligent control, PLC and configuration software through automatic control equipment, intelligent progressive realization of complete equipment; in terms of the form of the inverter, by the parallel inverter inverter respect to the series development, in order to increase output voltage, reducing the current tank, reduce line losses.

[0003]目前国内铸造业采用的熔化形式基本为两种,一是采用焦炭冲天炉熔化,二是采用传统的并联可控硅中频电源(KGPS)熔化;焦炭冲天炉熔化形式因工作效率低、能源浪费严重、对环境污染严重,以及难以控制铸件质量等缺点,目前已被国家禁止使用;并联可控硅中频电源因其采用调压调功,负载采用并联谐振方式,所以其功率因数不能始终保持在 [0003] It molten form domestic foundry industry essentially uses two, one using coke cupola melting are two traditional parallel thyristor frequency power supply (KGPS) melt; cupola molten form coke due to low efficiency, wasted energy, and environmental pollution, and it is difficult to control the quality of castings and other shortcomings, has now been banned countries; parallel SCR frequency power supply because of using voltage regulation, load using parallel resonance mode, so the power factor is not always maintain at

0.93以上,低功率运行时功率因数则较低,谐波污染严重,电流畸变较高,另外并联逆变为一种电流型逆变,电压低电流大线路损耗严重。 0.93 or more, and low-power operation when the power factor is low, serious harmonic pollution, high current distortion, as a further parallel current-source inverter, a large line voltage, low current serious loss. 这两种加热设备工作效率低,能源浪费严重,对电网及环境污染严重。 Both low efficiency heating equipment, serious waste of energy, power grid and environmental pollution.

发明内容 SUMMARY

[0004] 本发明要解决的技术问题是针对以上不足,提供一种功率因数高、谐波污染小、线路损耗小,耗电量低、熔化速度快的节能型IGBT串联逆变中频电源装置,节约了能源,避免了对电网及环境的污染。 [0004] The present invention is to solve the above technical problem is insufficient, there is provided a high power factor, less harmonic pollution, less line loss, low power consumption, faster melting rate energy-series IGBT inverter frequency power supply means, saving energy, avoiding pollution of the power grid and environment.

[0005] 为解决以上技术问题,本发明采用以下技术方案:节能型IGBT串联逆变中频电源装置,包括电连接的IGBT串联逆变电路、整流主电路、驱动电源电路、压控振荡电路、整流脉冲形成电路和保护信号电路。 [0005] To solve the above technical problem, the present invention employs the following technical solution: energy-series IGBT inverter frequency power supply apparatus, includes an IGBT inverter circuit is electrically connected in series, the main rectifier circuit, driving power supply circuit, the voltage controlled oscillation circuit, a rectifying and a pulse forming circuit protection signal circuit.

[0006] 所述保护信号电路包括集成电路IC5、IC6和IC7,集成电路IC5包括IC5A和IC5B两部分,集成电路IC6包括IC6A和IC6B两部分,集成电路IC7包括IC7A和IC7B两部分。 [0006] integrated circuit comprising IC5, IC6, and IC7, the integrated circuit IC5 IC5A and IC5B comprising two parts, comprising an integrated circuit IC6 IC6A and IC6B two parts, comprising an integrated circuit IC7 IC7A and IC7B two signal portions of the protection circuit.

[0007] 所述集成电路IC5的第5脚经串联的电阻R20、R21和R22接集成电路IC5的第6脚,集成电路IC5的第6脚接电阻R22的一端,电阻R22的另一端经电阻R26接地,电阻R22的另一端经电阻R5接集成电路IC5的第2脚,集成电路IC5的第4脚接地,集成电路IC5的第8脚经电容C20接地,集成电路IC5的第8脚接VCC,集成电路IC5的第3脚经电阻R27接VCC0 [0007] The integrated circuit IC5 of 5 feet by series resistor R20, R21 and R22 are connected to the integrated circuit IC5 of 6 feet, the other end of the first end of the integrated circuit IC5 6 feet to resistor R22, resistor R22 via a resistor R26 is grounded, the other end of the resistor R22 via a resistor R5 connected to the second integrated circuit IC5 pin, the first pin 4 is grounded in the integrated circuit IC5, pin 8 of the integrated circuit IC5 is grounded via a capacitor C20, an integrated circuit IC5 is connected to VCC pin 8 , pin 3 of IC5 via a resistor R27 connected to the integrated circuit VCC0

[0008] 所述集成电路IC5的第7脚经串联的电阻R23和二极管D12接三极管Q2的集电极,集成电路IC5的第7脚经串联的电阻R23和电阻R24接集成电路IC6的第5脚。 [0008] The integrated circuit pin 7 of IC5 via series connected resistor R23 and diode D12 to the collector of transistor Q2, resistor R23 and resistor R24 ​​to the seventh pin integrated circuit IC5 via a series connection of the integrated circuit IC6 pin 5 .

[0009] 所述集成电路IC6的第8脚接VCC,集成电路IC6的第4脚接地,集成电路IC6的第6脚经电阻R28接VCC,集成电路IC6的第6脚经电阻R29接地,集成电路IC6的第6脚接集成电路IC6的第2脚。 [0009] Ground pin 4 of the integrated circuit IC6 is connected to the VCC pin 8, the integrated circuits IC6, pin 6 via a resistor R28 connected to the VCC of the integrated circuit IC6, the first pin 6 via a resistor R29 to ground of the integrated circuit IC6, integration circuit IC6 of integrated circuit IC6 is connected to pin 6 of the second pin.

[0010] 所述集成电路IC5的第I脚经串联的电阻R30和电阻R31接集成电路IC6的第3脚,集成电路IC5的第I脚经串联的电阻R30和二极管D17接三极管Q2的集电极。 [0010] I first resistor R30 and the resistor R31 in series with the integrated circuit IC5 via foot access pin IC6 of integrated circuit 3, a resistor R30 I, IC pin via series diode D17 connected IC5 and the collector of transistor Q2 .

[0011] 所述集成电路IC6的第7脚经串联的电阻R32和发光二极管D13接地,集成电路IC6的第7脚经串联的二极管D14和电阻R34接地,集成电路IC6的第I脚经串联的二极管D15和电阻R34接地,集成电路IC6的第I脚经串联的电阻R33和发光二极管D16接地。 [0011] The integrated circuit resistor R32 and the light emitting diode D13 is grounded through IC6 of the foot 7 in series, the diode D14 and the resistor R34 is grounded in the integrated circuit IC6 via a series of 7 feet, an integrated circuit IC6 via a series of pins of I diode D15 and resistor R34 to ground, the first integrated circuit IC6 I feet through a series resistor R33 and the light emitting diode D16 is grounded.

[0012] 所述集成电路IC6的第7脚经串联的二极管D14和电阻R35接集成电路IC7的第2脚,集成电路IC7的第3脚接集成电路IC7的第5脚,集成电路IC7的第I脚接电阻R36的一端,电阻R36的另一端接二极管D19的负极。 [0012] The seventh pin diode D14 and a resistor R35 in series with the integrated circuit via integrated circuit IC6 is connected to the second pin IC7, an integrated circuit IC7 is connected to pin 3 of the integrated circuit IC7 5 feet, the first integrated circuit IC7 One end of resistor R36 to pin I, the other end of the resistor R36 the diode D19 anode.

[0013] 所述二极管D19的正极经电容C21接地,二极管D19的正极经电阻R37接VCC,集成电路IC7的第3脚经电阻R39接地,集成电路IC7的第3脚接电阻R38的一端,电阻R38的另一端接电阻R40的一端和二极管D18的负极,电阻R40的另一端和二极管D18的正极经电阻R41接集成电路IC7的第6脚,二极管D18的正极经电容C23接地,所述集成电路IC7的第4脚接地,集成电路IC7的第8脚经电容C22接地,集成电路IC7的第7脚经电阻R42接三极管Q2的基极,三极管Q2的发射极极地。 [0013] The positive electrode diode D19 is grounded through a capacitor C21, the anode of the diode D19 is connected to the VCC via a resistor R37, the third integrated circuit IC7 pin is grounded via a resistor R39, one end of the third integrated circuit IC7 pin of resistor R38, resistor and the negative electrode, the other end of the resistor R40, diode D18 and the other end of the positive end of resistor R40, R38 diode D18 via a resistor R41 connected to the integrated circuit IC7 of 6 feet, the positive electrode capacitor C23 via the diode D18 is grounded, the integrated circuit IC7 pin 4 is grounded, the integrated circuit 8 feet by IC7 capacitor C22 is grounded, the first pin 7 via a resistor R42 of the integrated circuit IC7 base of the transistor Q2 is connected, emitter of transistor Q2 is polar.

[0014] 所述集成电路IC5、IC6和IC7均为双运算放大器LM358。 [0014] The integrated circuit IC5, IC6 and IC7 are dual op amp LM358.

[0015] 本发明采用以上技术方案后,与现有技术相比,具有以下优点: [0015] With the present invention, the above technical solution, compared with the prior art, has the following advantages:

1、功率因数高,谐波污染小:节能型IGBT串联逆变中频电源装置的功率因数始终大于0.95,谐波含量小,低于国家“奇次谐波和偶次谐波之和小于5%”的要求,偶次谐波均小于2%,奇次谐波和偶次谐波之和小于5%,符合国家标准(GB/T14549-93)《电能质量公用电网谐波》的要求。 1, high power factor, less harmonic pollution: energy-series IGBT inverter frequency power supply apparatus power factor is always greater than 0.95, small harmonic content, lower than the national "odd harmonics, and even harmonics and the sum is less than 5% "requirement, even less than 2% harmonics, odd harmonics, and even harmonics and the sum is less than 5%, in line with the national standard (GB / T14549-93)" utility grid power quality harmonics "requirements.

[0016] 2、线路损耗小,耗电量低,比同类产品节能25%_30%:本项发明中输出部分中频电压高(2800V),输出电流小(直流电流的2.5-3倍),而目前其它中频电源的输出电压最高为1500V,输出电流为直流电流的5-6倍,以600KW设备为例,节能型IGBT串联逆变中频电源装置的中频电压为2800V,中频电流为3600A,而普通可控硅设备的中频电压为1500V,中频电流为6800A,假设输出部分的内阻为r,则线路损耗分别为:节能型IGBT串联逆变中频电源装置的线路损耗Pl=I2r= (3600) 2*r,普通可控硅中频电源的线路损耗P2=I2r=(6800)2*r,普通可控硅中频电源的线路损耗远远大于节能型IGBT串联逆变中频电源装配的线路损耗。 [0016] 2, the line loss is small, low power consumption, energy than similar products _30% 25%: the output section in the present invention of a high frequency voltage (2800V), a small output current (direct current 2.5-3 times), and other output voltage current up to 1500V frequency power supply, the output current is direct current 5-6 times to 600KW equipment, for example, energy-series IGBT inverter frequency power supply voltage of 2800V means IF, intermediate frequency current is 3600A, and ordinary device is a thyristor frequency voltage 1500V, intermediate frequency current is 6800A, assuming that the output resistance portion is r, the line losses are: energy loss Pl series circuit type IGBT inverter frequency power supply device = I2r = (3600) 2 * line loss P2 r, the ordinary IF power SCR = I2r = (6800) 2 * r, the ordinary line loss is much larger than SCR frequency power saving type IGBT series inverter frequency power supply assembly line losses.

[0017] 耗电量方面,节能型IGBT串联逆变中频电源装置的吨耗电量为520-550度,而目前国内外先进可控硅熔炼设备的耗电量为650-680度,可节能25%-30%。 [0017] For energy efficiency, energy consumption tons type IGBT series inverter frequency power supply means is 520-550 degrees, and the current consumption of advanced smelting thyristor device is 650-680 degrees, energy 25% -30%.

[0018] 3、恒功率输出,熔化速度快:本项发明中的节能型IGBT串联逆变中频电源装置,是目前唯一能实现恒功率输出的设备,以600KW设备为例,熔化一炉总共需要55分钟,其中有53分钟的时间工作在恒功率状态,恒功率时间达到96%,这是其它设备无法达到的; [0018] 3, constant power output, melting speed: energy in the present invention of type IGBT inverter frequency power supply means in series, is the only way to achieve constant power output device to 600KW equipment, for example, a melting furnace requires a total of 55 minutes, 53 minutes in which to work in a state of constant power, constant power time to reach 96%, which is the other apparatus can not be achieved;

一方面由于节能型IGBT串联逆变中频电源装置实现了恒功率,达到96%,另外由于节能型IGBT串联逆变中频电源装置中频电源中频电压高,电磁耦合效率高,达到98%,两方面原因使得节能型IGBT串联逆变中频电源装置熔化速度特别快,150KG/300KW设备仅20分钟一炉,吨耗电量:550度,1000KG/700KW设备45分钟一炉,吨耗电量520度,其它设备均无法达到此种速度。 Since the energy-saving aspect of the IGBT inverter frequency power supply means in series to achieve a constant power, up to 96% additional energy due to the high frequency power supply type IGBT series inverter unit IF frequency power supply voltage and a high electromagnetic coupling efficiency of 98%, for two reasons such that the energy-series IGBT inverter frequency power supply means to melt very fast, 150KG / 300KW only 20 minutes a furnace apparatus, ton consumption: 550 degrees, 1000KG / 700KW equipment 45 minutes in a furnace, 520 tons of power consumption, other devices are unable to achieve this speed.

[0019] 下面结合附图和实施例对本发明进行详细说明。 Drawings and embodiments of the present invention will be described in detail [0019] below in conjunction.

附图说明 BRIEF DESCRIPTION

[0020] 附图1是本发明实施例中节能型IGBT串联逆变中频电源装置的IGBT串联逆变电路原理图; [0020] Figure 1 is an IGBT embodiment saving type IGBT inverter frequency power supply means in series a series inverter circuit schematic embodiment of the present invention;

附图2是本发明实施例中节能型IGBT串联逆变中频电源装置的整流主电路原理图; 附图3是本发明实施例中节能型IGBT串联逆变中频电源装置的驱动电源电路原理图; Figure 2 is a schematic circuit diagram of the main rectifier in the series of energy-saving type IGBT inverter frequency power supply apparatus of the embodiment of the present invention; Figure 3 is a driving power supply circuit diagram of the principle of energy-efficient series IGBT inverter frequency power supply apparatus of the embodiment of the present invention;

附图4是本发明实施例中节能型IGBT串联逆变中频电源装置的压控振荡电路原理图; Figure 4 is a schematic diagram of the voltage controlled oscillation circuit example energy-series IGBT inverter frequency power supply apparatus of the embodiment of the present invention;

附图5是本发明实施例中节能型IGBT串联逆变中频电源装置的整流脉冲形成电路原理图; Figure 5 is a circuit diagram of the embodiment form pulse rectifier energy-series IGBT inverter frequency power supply apparatus of the embodiment of the present invention;

附图6是本发明实施例中节能型IGBT串联逆变中频电源装置的保护信号电路原理图; Figure 6 is a schematic circuit diagram of the protection signal of the energy-series IGBT inverter frequency power supply apparatus of the embodiment of the present invention;

附图7是本发明实施例中节能型IGBT串联逆变中频电源装置的功率因数变化图; 附图8是本发明实施例中节能型IGBT串联逆变中频电源装置的5次谐波含量图; 附图9是本发明实施例中节能型IGBT串联逆变中频电源装置的7次谐波含量图; 附图10是本发明实施例中节能型IGBT串联逆变中频电源装置的功率变化曲线图。 Figure 7 is a view of the change in the power factor energy-series IGBT inverter frequency power supply apparatus of the embodiment of the present invention; Figure 8 is a view of a fifth harmonic content of the energy-series IGBT inverter frequency power supply apparatus of the embodiment of the present invention; Figure 9 is a view of the seventh harmonic content of the energy-series IGBT inverter frequency power supply apparatus of the embodiment of the present invention; Figure 10 is a graph illustrating the variation of power saving type IGBT series inverter frequency power supply apparatus of the embodiment of the present invention.

具体实施方式 detailed description

[0021] 实施例,节能型IGBT串联逆变中频电源装置包括电连接的IGBT串联逆变电路、整流主电路、驱动电源电路、压控振荡电路、整流脉冲形成电路和保护信号电路。 [0021] Example embodiments, energy-series IGBT inverter frequency power supply device includes an IGBT inverter circuit electrically connected in series, the main rectifier circuit, driving power supply circuit, the voltage controlled oscillation circuit, a rectifying circuit and a pulse forming circuit protection signal.

[0022] 如附图1所示,IGBT串联逆变电路包括IGBT模块T1、T2、T3、T4和电容器C1、C2,逆变器由IGBT模块T1、T2、T3、T4和电容器C1,C2组成单相逆变桥,IGBT模块Tl的门极接电容CFl的正极,电容CFl的负极接电容CF2的正极,电容CF2的负极接IGBT模块T2的发射极,IGBT模块T2的集电极接IGBT模块Tl的发射极,IGBT模块Tl的集电极分别接IGBT模块T3的集电极和电容Cl的一端,IGBT模块T3的发射极接IGBT模块Tl的发射极,IGBT模块T3的发射极经感应炉的等效电感和电阻L、R接电容Cl的另一端,电容Cl的另一端接电容C2的一端,电容C2的另一端接IGBT模块T4的发射极。 [0022] As shown in Figure 1, a series IGBT inverter circuit includes an IGBT module T1, T2, T3, T4 and a capacitor C1, C2, an IGBT inverter module T1, T2, T3, T4 and a capacitor C1, C2 composition emitter, the collector of the IGBT module connected to the positive electrode of the IGBT module Tl T2 single-phase inverter bridge, the gate of the IGBT module Tl CFl to the capacitor, the capacitor CF2 connected to positive and negative electrodes of the capacitor CFl, CF2 capacitance connected to the negative electrode of the IGBT module T2 transmitting an end of the emitter, the collector of IGBT module Tl are respectively connected to the collector of the IGBT module and the capacitor Cl and T3, T3 is connected to IGBT module IGBT module Tl emitter, emitter of the IGBT module T3 is induction furnace by an equivalent resistance and inductance L, the other end of the emission of the IGBT module and the other end of R to the capacitor Cl, the other end of end of the capacitor Cl of the capacitor C2, the capacitor C2 T4 is.

[0023] Cl,C2的规格相同,L、R为感应炉的等效电感和电阻。 [0023] Cl, C2 are the same size, L, R is the equivalent resistance and inductance of the induction furnace.

[0024] 其工作过程如下:恒定的直流电压加在正极和负极母排之间,被电容Cl,C2平分,它们都充有上正下负电压,此时,触发Tl,T3,则流过感应炉的电流由两部分组成。 [0024] The working process is as follows: a constant DC voltage is applied between the positive electrode and the negative electrode busbars, capacitively Cl, C2 equally, they are charged with a negative voltage is positive at this time, the trigger Tl, T3, flows through current induction furnace consists of two parts. 一是Cl的放电流:C1上端-T1、T3-L、R-C1下端,另一路是C2的充电电流:CF上端T1、T3_L、R_C ?下端。 First, discharge currents Cl: C1 upper -T1, T3-L, R-C1 lower end, the charging current is another way C2 inequality: CF upper T1, T3_L, R_C lower?. 这两路都是同一谐振电路的一部分,前者有Cl、L、R组成,后者由C2、L、R组成。 Both are part of the same path of the resonant circuit, the former is Cl, L, R, the latter of C2, L, R composed. 由于C1=C2,因而两电路工作频率相同,等于由C=C1+C2、L、R组成电路的谐振频率。 Since C1 = C2, and therefore the same two frequency circuit, a resonance frequency equal to C = C1 + C2, L, R composed of the circuit. 当Cl放电结束,其上电压为0,C2上充电电压必定为UD,因为(^两端电压UD恒定,其值等于C1、C2上电压之和。这时流过L、R的电流最大,在L中储存的磁场能量作用下,维持上述两路电流继续流通,使Cl反向充电成下正上负,而C2则从Ud值继续升高,直到磁场能量降至O。这时,Cl上反压和C2上电压都达到最大值,到此流过感应炉L的电流正好为半个正玄波。接着在电容电压的作用下,形成两路和前述两路路径基本相同(只是模块中的续流二管代替Tl、T3流电流)、方向完全相反的电流,此电流仍按正玄规律变化,直到Cl又正向充电到1/2Ud,C2的电压也恢复为1/2Ud,电流降至O,流过感应炉的电流正好为一正玄负半波。接着触发T2、T4,即C2经L、R、T2、T4放电,Cl经L、R、T2、T4被充电,流过感应炉的电流同样是由两部分组成,其频率等于L、R、C(=C1+C2)组成电路的谐振频率。 When Cl discharge ends, the voltage across it is zero, the charged voltage across C2 is necessarily UD, since the (^ UD voltage across the constant, which is equal to C1, and the C2 voltage. At this time L, the maximum current flowing through R, under the effect of magnetic energy stored in L, maintaining the above two current continue to circulate, so that the reverse Cl with positive and negative charge into a lower, while the value Ud from C2 continues to rise until the magnetic energy is reduced to O. at this time, Cl and C2 on the back pressure reached the maximum voltage, L is the current flowing through the induction furnace and this is just a half sine wave. then under the action of the capacitor voltage, and the formation of two substantially identical two-way path (except module in place of two freewheeling Tl, T3 current flow), the opposite direction of the current, this current variation based upon the sine law, until the Cl and positively charged to 1 / 2Ud, recovery voltage is also C2 1 / 2Ud, O current is reduced, the current flowing through the induction furnace is just a negative half-wave sine Next trigger T2, T4, i.e. C2 through the L, R, T2, T4 discharge, Cl by L, R, T2, T4 is charged, current flows through the induction furnace is also composed of two parts, a frequency equal to L, R, C (= C1 + C2) comprising a resonant frequency of the circuit. 所以,流过感应炉的电流频率必定相同。 Therefore, the frequency of the current flowing through the induction furnace must be the same.

[0025] 上述工作过程,负载按电路固有振荡半周期从电源获取能量,另一半周期又将能量送回电源。 [0025] The working process of the load circuit according to a natural oscillation half-cycle energy from the power supply, the other half of the energy back to the power cycle in turn. 因此,负载取得的功率很小,为使负载获得最大功率,必须使触发频率接近电路的固有振荡频率。 Thus, to obtain the power load is small, the maximum power to the load, the trigger must be close to the natural oscillation frequency of the circuit.

[0026] 串联逆变是电压型谐振,电源工作时,炉体线圈L上的压降和电容C上的压降量值相等而方向相反它们的值较电源电压高3-5倍,而可控硅并联谐振,感应圈上的电压只有电源电压的1.5倍左右,而线圈的损耗功率P=I2R,由于IGBT串联谐振中是电压高而电流小,可控硅并联谐振是电压低而电流大,所以,IGBT串联谐振线路损耗小。 [0026] The series inverter is a voltage resonance type, power supply when the pressure drop on the pressure drop and the magnitude of the capacitance C in the furnace coil L equal but oppositely directed their values ​​3-5 times higher than the power supply voltage, but may silicon controlled parallel resonance, the voltage across the induction coil is only about 1.5 times the power supply voltage, the power loss of the coil P = I2R, since the IGBT is a series resonant voltage and high current, low voltage thyristor and the parallel resonance current is large Therefore, the IGBT series resonant line loss is small.

[0027] 如附图2所示,整流主电路包括电感TA、电感TB和电感TC,电感TA、电感TB和电感TC的一端接断路器,电感TA的另一端分别接整流二极管D7的正极、电容C7的一端和二极管Dl的正极,电容C7的另一端经电阻Rl接整流二极管D7的负极,二极管Dl的负极经电阻Ra接整流二极管D7的负极,电感TA的另一端分别接二极管D4的负极和电容C4的一端,电容C4的另一端经电阻R4接二极管D4的正极; [0027] As shown in Figure 2, the main rectifier circuit includes an inductor TA, TB and inductance inductance TC, TA inductance, and the inductance of inductor TB TC end of a circuit breaker, the other end of the inductance TA are respectively connected rectifier diode D7 cathode, capacitor positive end of the diode Dl of C7 the other terminal of the capacitor C7 via resistor Rl to the rectified cathode of the diode D7 and the cathode of diode Dl via a negative resistor Ra connected to the rectifier diode D7, the other end of the inductor TA are respectively connected to the cathode of diode D4 is and one end of the capacitor C4, the other terminal of the capacitor C4 is connected via a resistor R4 of the anode of the diode D4;

电感TB的另一端分别接整流二极管D8的正极、电容C3的一端和二极管D3的正极,电容C3的另一端经电阻R3接整流二极管D8的负极,二极管D3的负极经电阻Rb接整流二极管D8的负极,电感TB的另一端分别接二极管D6的负极和电容C6的一端,电容C6的另一端经电阻R6接二极管D6的正极; The other end of the inductor TB are respectively connected to the rectifier anode of the diode D8 and the other end of the positive end of the capacitor C3 and the diode D3, the capacitor C3 through a resistor R3 is connected to the rectifier negative diode D8, a diode D3 is a negative electrode via a resistor Rb connected to the rectifier diode D8 a negative electrode, the other end of the inductance TB are respectively connected at one end and a cathode of the diode D6, capacitor C6, the other end of the capacitor C6 through resistor R6 connected to the anode of the diode D6;

电感TC的另一端分别接整流二极管D9的正极、电容C5的一端和二极管D5的正极,电容C5的另一端经电阻R5接整流二极管D9的负极,二极管D5的负极经电阻Re接整流二极管D9的负极,电感TC的另一端分别接二极管D2的负极和电容C8的一端,电容C8的另一端经电阻R2接二极管D2的正极。 The other end of the inductor TC are connected to the rectifier diode cathode of D9, and the positive end of the capacitor C5 of the diode D5, the other end of the capacitor C5 via a resistor R5 connected to the rectifier cathode of the diode D9, the cathode of the diode D5 through a resistor Re connected to the rectifier diode D9, a negative electrode, the other end of the inductance are connected to the TC end of the anode of the diode D2 and the capacitor C8, the other end of the capacitor C8 is connected via a resistor R2 anode of the diode D2.

[0028] 采用半控整流技术,使整流可控硅始终处于全导通状态,直流电压始终保持在500V,避免了采用通过调整整流可控硅的导通角实现调功带来的谐波污染。 [0028] The half-controlled rectifier technique, the rectification thyristor remains full-on state, the DC voltage remains at 500V, avoid the use of conduction angle of the thyristor rectifier achieved by adjusting the harmonic pollution caused by power adjustment . 功率调节采用调频调功,使电路的功率因数始终保持在95%以上,能够实现节能。 Reactive power regulation using FM modulation, so that the power factor of the circuit has remained at 95%, energy saving can be achieved.

[0029] 如附图3所示,驱动电源电路包括集成电路ICl和集成电路IC2,集成电路ICl为整流桥堆KBPC610,集成电路ICl的“ + ”端经电容C9接地,集成电路ICl的端接地,集成电路ICl的“ + ”端经电容ClO接地,集成电路ICl的“ + ”端经电阻R7接三极管Ql的基极,三极管Ql的发射极接集成电路ICl的“ + ”端,三极管Ql的集电极经电容C12接地,三极管Ql的集电极经电容Cll接地,三极管Ql的集电极经串联的电阻R8和发光二极管DlO接地,三极管Ql的集电极接集成电路IC2的Vout端,集成电路IC2的Vin端接三极管Ql的发射极,集成电路IC2的GND端接地,集成电路IC2为三端稳压器7815。 [0029] As shown in Figure 3, the drive power supply circuit includes an integrated circuit ICl and integrated circuit IC2, integrated circuit ICl is a bridge rectifier KBPC610, integrated circuit ICl of the "+" side is grounded through a capacitor C9, integrated circuit ICl is connected to ground , integrated circuit ICl of the "+" side is grounded through a capacitor ClO, integrated circuit ICl of the "+" terminal of the transistor Ql via a resistor R7 connected to the base of transistor Ql emitter electrode connected to an integrated circuit ICl the "+" terminal of the transistor Ql the collector is grounded through a capacitor C12, resistor R8 and the collector of transistor Ql is grounded through a capacitor Cll, the collector of the transistor Ql and the light emitting diodes in series DlO ground, the collector of transistor Ql is connected to the Vout terminal of the integrated circuit IC2, the integrated circuit IC2 Vin emitting transistor Ql pole termination, the integrated circuit IC2 is connected to ground GND, the integrated circuit IC2 is a three-terminal regulator 7815.

[0030] 如附图4所示,压控振荡电路包括集成电路IC3,集成电路IC3是⑶4046,集成电路IC3的R2端接可变电阻R9的一端,可变电阻R9的另一端经电阻R13接地,集成电路IC3的Rl端接可变电阻RlO的一端,可变电阻RlO的另一端经电阻R14接地,集成电路IC3的CB端经并联的电容C13和电容C14接集成电路IC3的CA端,集成电路IC3的INH端接地,集成电路IC3的VCIN端经电阻Rll接VCIN,VCIN是PI调节器的输出,PI调节器输入端分别为调功电压TG (负值)、相位差VZ (正值),集成电路IC3的VCIN端经并联的电阻R12和电容C15接地。 [0030] As illustrated in Figure 4, the voltage controlled oscillator circuit includes an integrated circuit IC3, the integrated circuit IC3 is ⑶4046, the integrated circuit IC3 R2 terminating end of the variable resistor R9, variable resistor R9 and the other end is grounded via a resistor R13 variable resistor RlO end termination Rl integrated circuit IC3 and variable resistor RlO and the other end is grounded via a resistor R14, CB terminal of the integrated circuit IC3 via the parallel capacitor C13 and capacitor C14 connected to the integrated circuit IC3 CA end, integrated INH circuit IC3 is grounded, VCIN end of the integrated circuit IC3 via a resistor Rll connected VCIN, VCIN is the output of the PI regulator, the input of the PI regulator are adjusted power voltage TG (negative value), the phase difference VZ (positive) , VCIN end of the integrated circuit IC3 via parallel resistors R12 and capacitor C15 is grounded.

[0031] 如附图5所示,整流脉冲形成电路包括集成电路IC4,集成电路IC4为开关电源控制器KA3525A,集成电路IC4的EA㈠端接集成电路IC4的EAOUT端,集成电路IC4的EA (+)端接集成电路IC4的S0FTSTART端,集成电路IC4的CT端接集成电路IC4的DISCHARGE端,集成电路IC4的RT端经电阻R15接地,集成电路IC4的CT端经电容C16接地,集成电路IC4的SHUA DOWN端经并联的电阻R16和电容C17接地,集成电路IC4的OUTA端经电阻R17接地,集成电路IC4的GND端接地,集成电路IC4的VC端经电阻R18接+15V电压,集成电路IC4的Vcc端接+15V电压,集成电路IC4的Vcc端经并联的电容C18和电容C19接地,集成电路IC4的OUTA端接场效应管Q3的G端,场效应管Q3的S端接地,场效应管Q3的D端经串联的电阻R19和发光二极管Dll接主控板输出端子CONll的I针,场效应管Q3的型号为IRF630N。 [0031] As shown in Figure 5, the rectifying circuit includes a pulse forming integrated circuit IC4, switching power supply controller integrated circuit IC4 KA3525A, EAOUT EA㈠ end terminating integrated circuit IC4 of the integrated circuit IC4, the integrated circuit IC4 EA (+ ) S0FTSTART terminating end of the integrated circuit IC4, the integrated circuit IC4 DISCHARGE CT terminating end of the integrated circuit IC4, RT terminal via a resistor R15 to ground of the integrated circuit IC4, CT end grounded via a capacitor C16 of integrated circuit IC4, the integrated circuit IC4 SHUA DOWN terminal via a resistor R16 and a capacitor C17 in parallel to ground, terminal OUTA integrated circuit IC4 via resistor R17 to ground, integrated circuit IC4 is connected to ground GND, VC terminal via a resistor R18 connected to the integrated circuit IC4 voltage of + 15V, the integrated circuit IC4 termination voltage of + 15V Vcc, Vcc terminal of the integrated circuit IC4 by the parallel capacitance of capacitors C19 and C18 is grounded, the transistor Q3 is OUTA G terminating end of the integrated circuit IC4, S FET Q3 is grounded, FET Part D terminal Q3 through resistor R19 in series with the light emitting diode Dll and the output terminal connected to MPU I CONll the needle, transistor Q3 is IRF630N.

[0032] 如附图6所示,保护信号电路包括集成电路IC5、IC6和IC7,集成电路IC5、IC6和IC7均为双运算放大器LM358,集成电路IC5包括IC5A和IC5B两部分,集成电路IC6包括IC6A和IC6B两部分,集成电路IC7包括IC7A和IC7B两部分,集成电路IC5的第5脚经串联的电阻R20、R21和R22接集成电路IC5的第6脚,集成电路IC5的第6脚接电阻R22的一端,电阻R22的另一端经电阻R26接地,电阻R22的另一端经电阻R5接集成电路IC5的第2脚,集成电路IC5的第4脚接地,集成电路IC5的第8脚经电容C20接地,集成电路IC5的第8脚接VCC,集成电路IC5的第3脚经电阻R27接VCC ; [0032] As shown in Figure 6, the protection signal circuit includes an integrated circuit IC5, IC6 and IC7, the integrated circuit IC5, IC6 and IC7 are dual op amp LM358 integrated circuit IC5 IC5A and IC5B comprising two parts, comprising an integrated circuit IC6 IC6A and IC6B two parts, comprising an integrated circuit IC7 pin 5 via series resistor R20 IC7A and IC7B the two parts of the integrated circuit IC5, R21 and R22 connected to pin 6 of the integrated circuit IC5, an integrated circuit IC5 first resistor 6 feet one end, the other end of the resistor R22 or R22 to ground via a resistor R26, the other end of the resistor R22 via a resistor R5 connected to the second integrated circuit pin of IC5, pin 4 of the integrated circuit IC5 ground, an integrated circuit IC5 pIN 8 via a capacitor C20 grounding the integrated circuit IC5 is connected to the VCC pin 8, pin 3 of the integrated circuit IC5 is connected to the VCC via a resistor R27;

集成电路IC5的第7脚经串联的电阻R23和二极管D12接三极管Q2的集电极,集成电路IC5的第7脚经串联的电阻R23和电阻R24接集成电路IC6的第5脚,集成电路IC6的第8脚接VCC,集成电路IC6的第4脚接地,集成电路IC6的第6脚经电阻R28接VCC,集成电路IC6的第6脚经电阻R29接地,集成电路IC6的第6脚接集成电路IC6的第2脚,集成电路IC5的第I脚经串联的电阻R30和电阻R31接集成电路IC6的第3脚,集成电路IC5的第I脚经串联的电阻R30和二极管D17接三极管Q2的集电极; The integrated circuit pin 7 of IC5 via series resistor R23 and a diode D12 connected to the collector of transistor Q2, the first integrated circuit pin 7 through resistor R23 and resistor R24 ​​connected in series with the integrated circuit IC5 IC6 of 5 feet, the integrated circuit IC6 8 connected to the VCC pin of the integrated circuit IC6 ground pin 4, pin 6 of the integrated circuit IC6 via a resistor R28 connected to the VCC, the integrated circuit IC6 pin 6 is grounded via a resistor R29, the integrated circuit IC6 is connected to pin 6 of integrated circuits IC6 second leg, I first resistor R30 and the resistor R31 in series with the integrated circuit IC5 via foot access pin IC6 of integrated circuit 3, a resistor R30 I, IC pin via series diode D17 and IC5 connected transistor Q2 collector electrode;

集成电路IC6的第7脚经串联的电阻R32和发光二极管D13接地,集成电路IC6的第7脚经串联的二极管D14和电阻R34接地,集成电路IC6的第I脚经串联的二极管D15和电阻R34接地,集成电路IC6的第I脚经串联的电阻R33和发光二极管D16接地; Diode D15 and resistor R34 and resistor R32 integrated circuit IC6 light emitting diode D13 is grounded through a series of pin 7, the diode D14 and the resistor R34 is grounded in the integrated circuit IC6 via a series of 7 feet, the feet of the integrated circuit IC6 via the I series ground, the first integrated circuit via the I IC6 foot series resistor R33 and the light emitting diode D16 is grounded;

集成电路IC6的第7脚经串联的二极管D14和电阻R35接集成电路IC7的第2脚,集成电路IC7的第3脚接集成电路IC7的第5脚,集成电路IC7的第I脚接电阻R36的一端,电阻R36的另一端接二极管D19的负极,二极管D19的正极经电容C21接地,二极管D19的正极经电阻R37接VCC,集成电路IC7的第3脚经电阻R39接地,集成电路IC7的第3脚接电阻R38的一端,电阻R38的另一端接电阻R40的一端和二极管D18的负极,电阻R40的另一端和二极管D18的正极经电阻R41接集成电路IC7的第6脚,二极管D18的正极经电容C23接地,集成电路IC7的第4脚接地,集成电路IC7的第8脚经电容C22接地,集成电路IC7的第7脚经电阻R42接三极管Q2的基极,三极管Q2的发射极极地。 Diode D14 and resistor R35 to the seventh pin IC6 of integrated circuits in series connection through the second integrated circuit IC7 pin of the integrated circuit IC7 of 3 feet to 5 feet of the integrated circuit IC7, the first integrated circuit IC7 I feet of resistor R36 one end, the other end of the negative electrode of the diode D19 is resistor R36, the cathode is grounded via a capacitor C21 diode D19, the anode of the diode D19 is connected to the VCC via a resistor R37, pin 3 is grounded via a resistor R39 of the integrated circuit IC7, the first integrated circuit IC7 One end of resistor R38 to pin 3, one end of a resistance R40 the other end of the resistor R38 and the negative electrode, the other end of the resistor R40, diode D18 and anode of the diode D18 via a resistor R41 connected to the integrated circuit IC7 of 6 feet, the anode of the diode D18 C23 is grounded through a capacitor, an integrated circuit IC7 pin 4 is grounded, the integrated circuit 8 feet grounded via a capacitor C22 IC7, an integrated circuit 7 feet IC7 via a resistor R42 connected to the base of the transistor Q2 is, emitter of transistor Q2 is polar.

[0033] 如附图7所示,节能型IGBT串联逆变中频电源装置的功率因数始终大于0.95,平均大于0.98。 [0033] As shown in Figure 7, energy-series IGBT inverter frequency power supply means a power factor of greater than 0.95, an average of more than 0.98.

[0034] 如附图8和附图9所示,节能型IGBT串联逆变中频电源装置的5次谐波和7次谐波均小于5%,偶次谐波均小于2%,奇次谐波和偶次谐波之和小于5%,符合国家标准(GB/T14549-93)《电能质量公用电网谐波》的要求。 [0034] The figures shown in the drawings and 8, energy-series IGBT inverter frequency power supply apparatus 95 and the 7th harmonic harmonics less than 5%, even less than 2% harmonic, the odd harmonic even harmonic wave and a sum of less than 5%, in line with the national standard (GB / T14549-93) requirements "harmonics utility grid power quality," the.

[0035] 如附图10所示,以600KW设备为例,本发明节能型IGBT串联逆变中频电源装置熔化一炉总共需要55分钟,其中有53分钟的时间工作在恒功率状态,恒功率时间达到96%,这是其它设备无法达到的。 [0035] As shown in Figure 10, an example apparatus to 600KW, the present invention is energy-saving type IGBT inverter frequency power supply means in series a melting furnace 55 minutes in total, of which 53 minutes in a constant power working state, the time constant power 96%, which is the other device can not be achieved.

[0036] —方面由于节能型IGBT串联逆变中频电源装置实现了恒功率,达到96%,另外由于节能型IGBT串联逆变中频电源装置中频电源中频电压高,电磁耦合效率高,达到98%,两方面原因使得节能型IGBT串联逆变中频电源装置熔化速度特别快,150KG/300KW设备仅20分钟一炉,吨耗电量:550度,1000KG/700KW设备45分钟一炉,吨耗电量520度,其它设备均无法达到此种速度。 [0036] - since the energy-saving aspect of the IGBT inverter frequency power supply means in series to achieve a constant power, up to 96%, since the additional energy-series IGBT inverter frequency power supply device with a high frequency power supply frequency voltage, high electromagnetic coupling efficiency, up to 98%, two reasons IGBT series inverter such that energy-frequency power supply means melting very fast, 150KG / 300KW only 20 minutes a furnace apparatus, ton consumption: 550 degrees, 1000KG / 700KW a furnace equipment 45 minutes, power consumption 520 ton degrees, and other equipment were unable to reach this speed.

[0037] 本领域技术人员应该认识到,上述的具体实施方式只是示例性的,是为了使本领域技术人员能够更好的理解本发明内容,不应理解为是对本发明保护范围的限制,凡是根据本发明技术方案所作的改进,均落入本发明的保护范围。 [0037] Those skilled in the art should recognize that the above-mentioned specific embodiments are exemplary only, to enable those skilled in the art to better understand the present invention and should not be construed as limiting the scope of the present invention, all the improved aspect of the present invention is made, both fall within the scope of the present invention.

Claims (10)

  1. 1.节能型IGBT串联逆变中频电源装置,其特征在于:包括电连接的IGBT串联逆变电路、整流主电路、驱动电源电路、压控振荡电路、整流脉冲形成电路和保护信号电路。 1. The energy-series IGBT inverter frequency power supply device comprising: a IGBT inverter circuit electrically connected in series, the main rectifier circuit, driving power supply circuit, the voltage controlled oscillation circuit, a rectifying circuit and a pulse forming circuit protection signal.
  2. 2.如权利要求1所述的节能型IGBT串联逆变中频电源装置,其特征在于:所述保护信号电路包括集成电路IC5、IC6和IC7,集成电路IC5包括IC5A和IC5B两部分,集成电路IC6包括IC6A和IC6B两部分,集成电路IC7包括IC7A和IC7B两部分。 2. The energy-IGBT according to claim 1 series inverter frequency power supply means, characterized in that: said protection signal circuit includes an integrated circuit IC5, IC6 and IC7, the integrated circuit IC5 IC5A and IC5B comprising two parts, an integrated circuit IC6 IC6A and IC6B comprises two parts, comprising an integrated circuit IC7 IC7A and IC7B two portions.
  3. 3.如权利要求2所述的节能型IGBT串联逆变中频电源装置,其特征在于:所述集成电路IC5的第5脚经串联的电阻R20、R21和R22接集成电路IC5的第6脚,集成电路IC5的第6脚接电阻R22的一端,电阻R22的另一端经电阻R26接地,电阻R22的另一端经电阻R5接集成电路IC5的第2脚,集成电路IC5的第4脚接地,集成电路IC5的第8脚经电容C20接地,集成电路IC5的第8脚接VCC,集成电路IC5的第3脚经电阻R27接VCC。 3. The energy-saving type IGBT according to claim 2 series inverter frequency power supply means, characterized in that: said first integrated circuit resistor R20 IC5 via a series of 5 feet, R21 and R22 connected to pin 6 of the integrated circuit IC5, and One end of the resistor R22 connected to pin 6 of the integrated circuit IC5, and the other end of the resistor R22 is grounded via a resistor R26, the other end of the resistor R22 via a resistor R5 connected to the second integrated circuit pin of IC5, pin 4 of the integrated circuit IC5 ground, integrated 8 feet ground circuit IC5 via a capacitor C20, an integrated circuit IC5 is connected to the VCC pin 8, pin 3 of the integrated circuit IC5 via a resistor R27 is connected to VCC.
  4. 4.如权利要求3所述的节能型IGBT串联逆变中频电源装置,其特征在于:所述集成电路IC5的第7脚经串联的电阻R23和二极管D12接三极管Q2的集电极,集成电路IC5的第7脚经串联的电阻R23和电阻R24接集成电路IC6的第5脚。 4. The energy-IGBT according to claim 3 series inverter frequency power supply apparatus, wherein: the integrated circuit via the pin 7 of IC5 in series connected resistor R23 and diode D12 to the collector of the transistor Q2, the integrated circuit IC5 of 7 feet by resistors R23 and resistor R24 ​​connected in series with the integrated circuit IC6 is 5 feet.
  5. 5.如权利要求4所述的节能型IGBT串联逆变中频电源装置,其特征在于:所述集成电路IC6的第8脚接VCC,集成电路IC6的第4脚接地,集成电路IC6的第6脚经电阻R28接VCC,集成电路IC6的第6脚经电阻R29接地,集成电路IC6的第6脚接集成电路IC6的第2脚。 The integrated circuit IC6 ground pin 4 of the integrated circuit IC6 is connected to the VCC pin 8,, 6 of the integrated circuit IC6: energy saving the IGBT as claimed in claim 4 series inverter frequency power supply means, characterized in that via a resistor R28 connected to the VCC pin, pin 6 of the integrated circuit to ground via a resistor R29 IC6 of integrated circuit IC6 is connected to pin 6 of the integrated circuit IC6 2 feet.
  6. 6.如权利要求5所述的节能型IGBT串联逆变中频电源装置,其特征在于:所述集成电路IC5的第I脚经串联的电阻R30和电阻R31接集成电路IC6的第3脚,集成电路IC5的第I脚经串联的电阻R30和二极管D17接三极管Q2的集电极。 6. The energy-saving claim IGBT 5 series inverter frequency power supply apparatus, wherein: the integrated circuit of resistor R30 and resistor R31 I IC5 feet integrated circuit connected in series through the third pin IC6 of integrated I of the foot via series resistor R30 and the diode D17 circuit IC5 collector of the transistor Q2 is connected.
  7. 7.如权利要求6所述的节能型IGBT串联逆变中频电源装置,其特征在于:所述集成电路IC6的第7脚经串联的电阻R32和发光二极管D13接地,集成电路IC6的第7脚经串联的二极管D14和电阻R34接地,集成电路IC6的第I脚经串联的二极管D15和电阻R34接地,集成电路IC6的第I脚经串联的电阻R33和发光二极管D16接地。 7. The energy-saving type IGBT according to claim 6 series inverter frequency power supply apparatus, wherein: said integrated circuit resistor R32 and the light emitting diode D13 is grounded through IC6 of the foot 7 in series, the integrated circuit IC6 pin 7 via the diode D14 and the resistor R34 is grounded in series, an integrated circuit diode D15 and the resistor R34 via a series of ground pin I IC6 of integrated circuit resistor R33 and the light emitting diode D16 is grounded through a series of pins of the I IC6.
  8. 8.如权利要求7所述的节能型IGBT串联逆变中频电源装置,其特征在于:所述集成电路IC6的第7脚经串联的二极管D14和电阻R35接集成电路IC7的第2脚,集成电路IC7的第3脚接集成电路IC7的第5脚,集成电路IC7的第I脚接电阻R36的一端,电阻R36的另一端接二极管D19的负极。 8. The energy-saving type IGBT according to claim 7 series inverter frequency power supply means, characterized in that: a diode D14 and a resistor R35 of the integrated circuit IC6 pin 7 connected in series by the second integrated circuit IC7 pin, integrated circuit IC7 of 3 feet to 5 feet of the integrated circuit IC7 one end of the integrated circuit IC7 I feet resistor R36 and the other end of the resistor R36 the diode D19 anode.
  9. 9.如权利要求8所述的节能型IGBT串联逆变中频电源装置,其特征在于:所述二极管D19的正极经电容C21接地,二极管D19的正极经电阻R37接VCC,集成电路IC7的第3脚经电阻R39接地,集成电路IC7的第3脚接电阻R38的一端,电阻R38的另一端接电阻R40的一端和二极管D18的负极,电阻R40的另一端和二极管D18的正极经电阻R41接集成电路IC7的第6脚,二极管D18的正极经电容C23接地,所述集成电路IC7的第4脚接地,集成电路IC7的第8脚经电容C22接地,集成电路IC7的第7脚经电阻R42接三极管Q2的基极,三极管Q2的发射极极地。 9. The energy-saving type IGBT according to claim 8 series inverter frequency power supply apparatus, wherein: the positive electrode is grounded via a capacitor C21 of the diode D19 and the anode of the diode D19 via a resistor R37 connected to the VCC, the third integrated circuit IC7 foot via a resistor R39 to ground, one end of the integrated circuit IC7 resistor R38 to pin 3, one end of a resistance R40 the other end of the resistor R38 and the diode D18 cathode, the other end of the resistor R40 and the anode of the diode D18 via a resistor R41 connected to the integrated circuit IC7 of 6 feet, the positive electrode capacitor C23 via the diode D18 is grounded, the integrated circuit IC7 ground pin 4, the first capacitor C22 is grounded via pin 8 of the integrated circuit IC7, 7 feet via a resistor R42 connected to the integrated circuit IC7 the base of transistor Q2, the emitter of transistor Q2 polar.
  10. 10.如权利要求1-9其中之一所述的节能型IGBT串联逆变中频电源装置,其特征在于:所述集成电路IC5、IC6和IC7均为双运算放大器LM358。 IGBT 10. The energy-saving one of claims 1-9 in the series inverter frequency power supply apparatus, wherein: the integrated circuit IC5, IC6 and IC7 are dual op amp LM358.
CN 201510096901 2015-03-05 2015-03-05 Igbt energy-frequency power supply means in series inverter CN104638901B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201510096901 CN104638901B (en) 2015-03-05 2015-03-05 Igbt energy-frequency power supply means in series inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201510096901 CN104638901B (en) 2015-03-05 2015-03-05 Igbt energy-frequency power supply means in series inverter

Publications (2)

Publication Number Publication Date
CN104638901A true true CN104638901A (en) 2015-05-20
CN104638901B CN104638901B (en) 2017-04-12

Family

ID=53217322

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201510096901 CN104638901B (en) 2015-03-05 2015-03-05 Igbt energy-frequency power supply means in series inverter

Country Status (1)

Country Link
CN (1) CN104638901B (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4683529A (en) * 1986-11-12 1987-07-28 Zytec Corporation Switching power supply with automatic power factor correction
CN2482476Y (en) * 2001-08-03 2002-03-20 台州耐力调速电机有限公司 Contravariant welder with protector
CN1953623A (en) * 2005-10-17 2007-04-25 山东奥博特铜铝业有限公司 A novel medium frequency heater of frequency conversion induction
CN201204714Y (en) * 2008-05-30 2009-03-04 郑州科创电子有限公司 Induction heating apparatus
CN201332521Y (en) * 2008-12-31 2009-10-21 郑州科创电子有限公司;郑州市科融系统工程有限公司 IGBT serial inversion type quick melting furnace
CN104638902A (en) * 2015-03-05 2015-05-20 潍坊市金华信电炉制造有限公司 Energy-saving IGBT (Insulated Gate Bipolar Transistor) series inverter medium frequency power device
CN104638945A (en) * 2015-03-05 2015-05-20 潍坊市金华信电炉制造有限公司 IGBT (insulated gate bipolar translator) serial inverting medium-frequency power supply device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4683529A (en) * 1986-11-12 1987-07-28 Zytec Corporation Switching power supply with automatic power factor correction
CN2482476Y (en) * 2001-08-03 2002-03-20 台州耐力调速电机有限公司 Contravariant welder with protector
CN1953623A (en) * 2005-10-17 2007-04-25 山东奥博特铜铝业有限公司 A novel medium frequency heater of frequency conversion induction
CN201204714Y (en) * 2008-05-30 2009-03-04 郑州科创电子有限公司 Induction heating apparatus
CN201332521Y (en) * 2008-12-31 2009-10-21 郑州科创电子有限公司;郑州市科融系统工程有限公司 IGBT serial inversion type quick melting furnace
CN104638902A (en) * 2015-03-05 2015-05-20 潍坊市金华信电炉制造有限公司 Energy-saving IGBT (Insulated Gate Bipolar Transistor) series inverter medium frequency power device
CN104638945A (en) * 2015-03-05 2015-05-20 潍坊市金华信电炉制造有限公司 IGBT (insulated gate bipolar translator) serial inverting medium-frequency power supply device

Also Published As

Publication number Publication date Type
CN104638901B (en) 2017-04-12 grant

Similar Documents

Publication Publication Date Title
CN101834539A (en) High-efficiency AC/DC combined converter with wide output voltage range
CN101841236A (en) Power factor correction converter and control method thereof
CN201682429U (en) Bridgeless PFC boost rectifier
CN201742599U (en) High power factor constant current driving circuit
CN201984790U (en) Drive circuit and LCD TV
CN101197544A (en) Wide region input and continuously adjustable non-bridge Buck-Boost PFC converter
CN1868655A (en) Synergistic controlled soft switch contravariant type double-wire pulse MIG arc welding power supply
CN103701130A (en) Hysteresis control method of three-phase four-switch-type active filter
CN101582633A (en) Three-phase boosting and deboosting power factor correction circuit and control method thereof
CN101588072A (en) Novel energy-saving power regulator
CN1697279A (en) Multifunctional adjuster for quality of voltage in low voltage system
CN201656905U (en) Speed regulating system of a slip power feedback type asynchronous motor with large power and medium-high voltage
CN102437765A (en) Topological circuit of inverter and inversion method thereof, and inverter
CN2286440Y (en) Control circuit for contravariant three purpose electric welding machine
CN1832289A (en) Neutral harmonic current managing device and control method thereof
CN1688076A (en) Negative pulse charging emergency power supply
US20080094862A1 (en) High power-factor AC/DC converter with parallel power processing
CN201623652U (en) Full bridge inverter circuit and unidirection inverter power supply comprising the same
CN101286707A (en) LED energy saving lamp of power factor compensation type driven by constant-current
CN2497509Y (en) IC electronic ballast circuit
CN2489367Y (en) AC switch compensating voltage stabilizer
CN201856023U (en) Twin-inverter large-power IGBT square-wave AC/DC argon arc welding power supply
CN102255331A (en) Transformer-free unilateral inductor grid-connected inverter circuit
CN202034781U (en) Chopped-mode reactive power continuous compensation device
CN101820216A (en) Alternating current boosting power factor correction circuit

Legal Events

Date Code Title Description
C06 Publication
C10 Entry into substantive examination
CB02
GR01