CN112532078A - 一种基于零电流软开关的swiss整流器 - Google Patents

一种基于零电流软开关的swiss整流器 Download PDF

Info

Publication number
CN112532078A
CN112532078A CN202011472553.9A CN202011472553A CN112532078A CN 112532078 A CN112532078 A CN 112532078A CN 202011472553 A CN202011472553 A CN 202011472553A CN 112532078 A CN112532078 A CN 112532078A
Authority
CN
China
Prior art keywords
phase
switching
current
rectifier
zero
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011472553.9A
Other languages
English (en)
Inventor
颜景斌
李航天
刘明亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harbin University of Science and Technology
Original Assignee
Harbin University of Science and Technology
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 Harbin University of Science and Technology filed Critical Harbin University of Science and Technology
Priority to CN202011472553.9A priority Critical patent/CN112532078A/zh
Publication of CN112532078A publication Critical patent/CN112532078A/zh
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/14—Arrangements for reducing ripples from dc input or output
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
    • H02M1/4208—Arrangements for improving power factor of AC input
    • H02M1/4216—Arrangements for improving power factor of AC input operating from a three-phase input voltage
    • 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
    • H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
    • H02M7/066—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode particular circuits having a special characteristic
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M7/2173—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 in a biphase or polyphase circuit arrangement
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M7/2176—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only comprising a passive stage to generate a rectified sinusoidal voltage and a controlled switching element in series between such stage and the output
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Abstract

本发明涉及电力电子领域，具体是一种以零电流转换作为软开关的swiss整流器。该整流器包括：三相不可控整流桥、上下各串接一个DC‑DC Buck斩波器、一个有源三次谐波电流注入网络、两个快速可关断开关管（T+和T）以及两个零电流开关PWM变换器单元。整流器的三相交流输入电源取自电网对称三相电，通过滤波器后再接三相不可控整流桥。本发明是一种单向、降压、带有功率因数校正功能的新型三相DC‑DC整流器。与传统的整流器相比它具有单位功率因数运行，开关损耗小，输入电流谐波率低，全电压可调等优异性能。

Description

一种基于零电流软开关的swiss整流器
技术领域
本发明涉及电力电子领域，具体是一种以零电流转换作为软开关的新型三相电压整流器。
背景技术
随着工业技术的飞速发展，人们对使用的电能的质量要求越来越高，在能源日益危机的今天，以高效节能、优质合理使用电能为特点的电力电子装置得到了前所未有的发展。电力电子设备的使用已经非常广泛，无论是对于一个小的家庭，还是对于一个大的国家，它都已经不可或缺。但是过度的使用，同时也带来了新的问题，即谐波问题。随着谐波问题的严重化，其对电网的影响也是更加严重。所以，为了降低电能的损耗，降低谐波变得刻不容缓。
因此寻找一种新型的整流器拓扑结构显得极其重要，整流器的开关损耗与开关频率之间呈线性关系，随着开关频率的提高，开关损耗就会越来越大，这时候就需要采用软开关技术来降低开关损耗，同时减少谐波提升电能质量。而零电流开关PWM变换器就是一种运用较为广泛的软开关。
发明内容
为解决上述问题，本发明提供一种基于零电流软开关的swiss整流器，此整流器此电路具有较低的器件电压应力、宽范围降压输出、较强输入、输出电流控制能力的特点，具有高频、高效传输、全负载。同时由于使用了零电流开关PWM变换器作为软开关，未增大导电损耗的情况下大大降低了开关损耗。
一种基于零电流软开关的swiss整流器，包括由 6 个二极管构成的整流桥，输入滤波电路，由6个二极管和6个IGBT组成的谐波注入电路，以及两个零电流开关PWM变换器软开关单元，其特征在于其基本电路为三相 Buck 型 PFC 整流电路。其中所述的滤波电路为LC型滤波电路，其电容公共端接地；所述的整流桥和谐波注入电路共同构成输入电压的选择部分，其为相互并联的三相桥臂，每相桥臂包括两个串联的二极管以及桥臂的中点一侧串联两个方向不同的具有低正向压降的IGBT管作为开关管T+和T-，然后串接RLC输出电路。另一侧经输入滤波电路与三相电压源相连。所述的开关PWM变换器软开关单元是在开关管上并联一个二极管再串联一个谐振电感，在buck电路二极管上并联一个开关单元完成开关管T-和T+的零电流关断。
附图说明
为更清楚的说明本发明一种基于零电流软开关的swiss整流器，下面结合附图和具体实施方式对本发明做进一步详细的说明。
图1为本发明一种基于零电流软开关的swiss整流器结构示意图。
图2为本发明一种基于零电流软开关的swiss整流器中零电流开关PWM变换器软开关单元。
图3为本发明一种基于零电流软开关的swiss整流器中三相谐波网络的导通状态。
图4为本发明一种基于零电流软开关的swiss整流器的统一区间瞬时等效电路。
图5为本发明一种基于零电流软开关的swiss整流器第一阶段T-，T+同时导通的工作状态。
图6为本发明一种基于零电流软开关的swiss整流器第二阶段T-截止，T+导通的工作状态。
图7为本发明一种基于零电流软开关的swiss整流器第三阶段T-导通，T+截止的工作状态。
图8为本发明一种基于零电流软开关的swiss整流器第四阶段T-，T+同时截止的工作状态。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，应当注意，在此所述的实施例仅为本发明的部分实施例，而非本发明的全部实现方式，所述实施例只有示例性。
参照图1，一种基于零电流软开关的swiss整流器，包括由 6 个二极管构成的整流桥，输入滤波电路，由6个二极管和6个IGBT组成的谐波注入电路，以及两个零电流开关PWM变换器软开关单元，其特征在于其基本电路为三相 Buck 型 PFC 整流电路。其中所述的滤波电路为LC型滤波电路，其电容公共端接地；所述的整流桥和谐波注入电路共同构成输入电压的选择部分，其为相互并联的三相桥臂，每相桥臂包括两个串联的二极管以及桥臂的中点一侧串联两个方向不同的具有低正向压降的IGBT管作为开关管T+和T-，然后串接RLC输出电路。另一侧经输入滤波电路与三相电压源相连。所述的开关PWM变换器开关单元是在开关管上并联一个二极管再串联一个谐振电感，在buck电路二极管上并联一个开关单元完成开关管T-和T+的零电流关断。
参照图2，本发明采用零电流开关PWM变换器作为软开关，它的作用是周期性的断开Cr消除 Lr和Cr间的谐振,使其只在开关转换瞬间产生谐振,为功率开关创建零电流开关条件，实现主开关和辅助开关的零电流开关。
参照图3为三相谐波注入网络的导通状态，由此网络只在电压瞬时值为中间大小对应的相导通，由T+和T-的导通情况来进行定义一种基于零电流软开关的swiss整流器的工作状态。
参照图4，通过各工作阶段的等效电路，详细分析电路的工作过程，选择A相电压相角为0o-30o的扇区进行分析，此时A相电压瞬时值大于B相电压瞬时值大于C相电压瞬时值，因为B相电压的瞬时值大小位于中间，所以此时该相电流为零，但是三相注入式网络中与之对应的电流支路导通，即Sy2导通，进而补偿了死区电流。此时，可得到图4所示的统一区间瞬时等效电路。对于其余导通时间内的工作模态，可以根据此方法进行计算。
再分析各个阶段的电流等效通路，由Ua>Ub>Uc可知图四中的Upy=Uab，Uyn=Ubc，各个阶段的等效电流通路：
参照图五为第一阶段，此时T+和T-导通，输出电压Upn相当于Uac，电感充电，电感电流成线性上升，Ia=-Ic=IDC,Ib=0。
参照图6为第二阶段，此时T+导通，T-截止，输出电压Upn相当于Uab，因为电感充的电与输入电压的大小不明确，所以无法得知电感是充电还是放电，Ia=-Ib=IDC，Ia=0。
参照图7为第三阶段，此时T-导通，T+截止，输出电压Upn相当于Ubc，因为电感充的电与输入电压的大小不明确，所以无法得知电感是充电还是放电。Ib=-Ic=IDC，Ia=0。
参照图8为第四阶段，此时T+和T-都截止，输出电压Upn相当于0，电感放点，Ib=-Ic=0，Ia=0。
通过以上分析，可知通过S1和S2的通断，可以Ia，Ic让跟随Ua,Uc，根据KCL和三相对称，即Ia+Ib+Ic=0，所以Ib也跟随Ub，又因其他工作区间类似于前30°的工作区间，所以把之前的分析扩展到整个周期，就可以得到三相电流的正弦控制，进而实现了功率因数调节。
以上对本发明的实施例进行了描述，上述的具体实施方式仅仅是示意性的，而不是所述技术方案的限制，所以本发明并不局限于上述的具体实施方式，所有本领域普通技术人员在不脱离本发明宗旨和构思的前提下，及其它对本发明技术方案的简单替换和各种变化，都属于本发明的保护范围。

Claims (5)

1.一种基于零电流软开关的swiss整流器，其特征是所述的零电流开关swiss整流器包括：电网对称三相电、LC滤波电路、三相不可控整流桥、有源三次谐波注入电路网络、DC-DCBuck斩波器、两个快速可关断开关管、两个零电流开关PWM变换器单元组成的软开关以及输出回路；将三相不可控整流桥上下各接一个DC-DC Buck斩波器，外加一个有源三次谐波注入网络，整流器的三相交流输入电源取自电网对称三相电，通过滤波器后再接三相不可控整流桥，中间并联三组谐波注入网络，通过开关管（T+和T-）控制谐波电流注入，两个零电流开关PWM变换器单元减少开关管（T+和T-）开通关断过程的电流波动。
2.根据权利要求1所述的LC滤波电路，其特征是所述LC滤波电路由三个滤波电感La、Lb、Lc以及三个滤波电容Ca、Cb、Cc组成然后分别与电网对称三相电源相连接。
3.根据权利要求1所述的三相不可控整流桥，其特征是所述的三相不可控整流桥由二极管D1、D2、D3、D4、D5、D6以及开关管T+和T-所组成；其中D1与D2，D3与D4，D5与D6串联然后再并联，开关管T+和T-分别连在上下两端。
4.根据权利1要求所述的有源三次谐波注入网络，其特征是所述的三次谐波注入网络Sy1与二极管Dy1、Dy2连接在a相、三次谐波注入网络Sy2与二极管Dy3、Dy4连接在b相、三次谐波注入网络Sy3与二极管Dy5、Dy6连接在c相。
5.根据权利1要求所述的零电流开关PWM变换器单元，其特征是所述的领电流开关PWM变换器通过由MOSFET构成辅助开关S1和S2通过使谐振电感Lr1和Lr2短路，同时谐振电容Cr1和 Cr2与辅助开关S3和S4串联构成开关单元，从而周期性的断开Cr消除Lr与Cr间的谐振，使其只在开关转换的瞬间产生谐振，为功率开关创建零电流开关条件。
CN202011472553.9A 2020-12-15 2020-12-15 一种基于零电流软开关的swiss整流器 Pending CN112532078A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011472553.9A CN112532078A (zh) 2020-12-15 2020-12-15 一种基于零电流软开关的swiss整流器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011472553.9A CN112532078A (zh) 2020-12-15 2020-12-15 一种基于零电流软开关的swiss整流器

Publications (1)

Publication Number Publication Date
CN112532078A true CN112532078A (zh) 2021-03-19

Family

ID=74999805

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011472553.9A Pending CN112532078A (zh) 2020-12-15 2020-12-15 一种基于零电流软开关的swiss整流器

Country Status (1)

Country Link
CN (1) CN112532078A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113328620A (zh) * 2021-06-11 2021-08-31 燕山大学 三相谐波电流注入型可升压降压变换器

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110739870A (zh) * 2019-11-26 2020-01-31 哈尔滨理工大学 一种基于零电流开关pwm变换器的三相电压整流器
CN110829868A (zh) * 2019-12-03 2020-02-21 哈尔滨理工大学 一种基于谐振复位隔离的正激型swiss整流器

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110739870A (zh) * 2019-11-26 2020-01-31 哈尔滨理工大学 一种基于零电流开关pwm变换器的三相电压整流器
CN110829868A (zh) * 2019-12-03 2020-02-21 哈尔滨理工大学 一种基于谐振复位隔离的正激型swiss整流器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113328620A (zh) * 2021-06-11 2021-08-31 燕山大学 三相谐波电流注入型可升压降压变换器

Similar Documents

Publication Publication Date Title
US8760128B2 (en) Three-phase boost-buck power factor correction converter
CN111064359A (zh) 宽范围双向变换电路及控制方法
CN108988676B (zh) 一种单级式隔离型双向ac-dc变换器
CN107204717B (zh) 一种无桥升压型cuk pfc电路
CN102299649B (zh) 电源变换器
CN110061650B (zh) 单级式隔离型三相双向ac/dc变换器及控制方法
CN101951186A (zh) 附加续流通路的软开关三相并网逆变器
CN102163932A (zh) 交流斩波的线性ac-dc变换器
CN111478573A (zh) 适用于单三相电网的功率因素调整架构及其控制方法
CN101515762A (zh) 无源箝位单相单级桥式功率因数校正变换器及其控制方法
CN211656002U (zh) 一种谐振无桥升压功率因数校正ac-dc变换器
CN116191858A (zh) 基于开关电感的Cuk型功率因数校正电路
CN109713929B (zh) 一种基于零电压软开关的三相三开关两电平整流器
CN113965096B (zh) 带辅助功率因数校正电路的串联型12脉波整流器
CN114744895A (zh) 一种单级隔离谐振式三相整流器
CN108448923B (zh) 一种实现三相逆变器软开关的变频控制方法
CN102185491B (zh) 混联电桥型阻抗网络功率变换器
CN110739870A (zh) 一种基于零电流开关pwm变换器的三相电压整流器
CN112532078A (zh) 一种基于零电流软开关的swiss整流器
CN110829868A (zh) 一种基于谐振复位隔离的正激型swiss整流器
CN102769394B (zh) 单相可控整流电路
CN102412740A (zh) 一种多相ac-dc隔离变换电路及多相ac-dc电源
CN108683343B (zh) 伪连续导电模式Buck-Boost无桥PFC变换器
CN211830601U (zh) 一种基于交错并联的改进型三相混合整流器
CN112072908A (zh) 一种提升ups功率因数的六电感双开关pfc拓扑结构

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination