CN114583988A - Csr高频pwm整流电路输出对地平衡的并联方法 - Google Patents

Csr高频pwm整流电路输出对地平衡的并联方法 Download PDF

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CN114583988A
CN114583988A CN202210226483.1A CN202210226483A CN114583988A CN 114583988 A CN114583988 A CN 114583988A CN 202210226483 A CN202210226483 A CN 202210226483A CN 114583988 A CN114583988 A CN 114583988A
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csr
inductor
output
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parallel
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薛洛良
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M7/23—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 arranged for operation in parallel
    • 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
    • H02M7/219—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 bridge configuration
    • 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

本发明公开了一种CSR高频PWM整流电路输出对地平衡的并联方法，在直流输出回路正负两侧各包括有一个电感，所述两个电感参数相等；该两个电感各有一个二极管串联在电感与负荷回路中，作为电感储存能量释放通路，实现多个CSR回路并联。本发明提供一种可以实现多路CSR并联，提高功率，给直流输出正负极对地电压大小相等符号相反的负荷供电，降低能耗，使用安全可靠的一种CSR高频PWM整流电路输出对地平衡的并联方法。

Description

CSR高频PWM整流电路输出对地平衡的并联方法
技术领域
本发明涉及CSR高频PWM整流电路技术领域，尤其涉及一种CSR高频PWM整流电路输出对地平衡的并联方法。
背景技术
三相CSR高频PWM整流电路是电流源降压型脉宽调制整流电路，由于受大功率开关元件IGBT管工作频率不能太高的影响，大功率整流回路需要N个CSR回路并联来提高频率，满足功率输出、满足PFC功能和减少输出电压纹波。
如图1所示为目前所使用两组CSR并联回路示意图，现有两组CSR并联回路的N组并联只用增加CSR回路，CSR输入与输出并联即可。这个电路直流输出只在一端串接有储能电感，因此直流正负极对地电压不平衡不固定。
发明内容
有鉴于此，本发明提供一种可以实现多路CSR并联，提高功率，给直流输出正负极对地电压大小相等符号相反的负荷供电，降低能耗，使用安全可靠的一种CSR高频PWM整流电路输出对地平衡的并联方法。
为了实现本发明目的，可以采取以下技术方案：
一种CSR高频PWM整流电路输出对地平衡的并联方法，在直流输出回路正负两侧各包括有一个电感，所述两个电感参数相等；该两个电感各有一个二极管串联在电感与负荷回路中，作为电感储存能量释放通路，实现多个CSR回路并联。
本发明的有益效果是：1)本发明是在直流输出回路正负两侧各包括有一个电感；该两个电感各有一个二极管串联在电感与负荷回路中，作为电感储存能量释放通路，实现多个CSR回路并联，提高功率，减少损耗；2)本发明解决了IGBT管动作速度不一致的问题，解决了电感L参数差异问题，从而完成CSR多路并联，使直流输出正负极对地电压大小相等符号相反；3)本发明是现有技术的一次技术升级，适于普遍推广。
附图说明
图1为本发明实施例CSR高频PWM整流电路输出对地平衡的并联方法的现有的PWM整流电路的两组CSR并联回路的电路图；
图2为本发明实施例CSR高频PWM整流电路输出对地平衡的并联方法的PWM整流电路的两组CSR并联回路的电路图。
具体实施方式
下面结合附图及本发明的实施例对发明作进一步详细的说明。
实施例1
本发明提出一种CSR高频PWM整流电路输出对地平衡的并联方法。
参看图1，现有技术中，如图1所示为目前所使用两组CSR并联回路示意图，现有两组CSR并联回路的N组并联只用增加CSR回路，CSR输入与输出并联即可。这个电路直流输出只在一端串接有储能电感，因此直流正负极对地电压不平衡不固定。
参看图2，本发明是在直流输出回路正负两侧各包括有一个电感，所述两个电感参数相等；该两个电感各有一个二极管串联在电感与负荷回路中，作为电感储存能量释放通路，实现多个CSR回路并联。
本发明是为要求多路CSR并联，提高功率，给直流输出正负极对地电压大小相等符号相反的负荷供电。
为此，一是输入端电源中性点不接地；二是回路设计如图2所示，在直流输出回路包括有电感L4与电感L5，使电感L4与电感L5参数相等；在电感L4与电感L5之间包括有两个电容C4与电容C5串联，所述C4与C5电容参数相等；电容C4与电容C5之间有接地点D，用来平衡直流母线电压正负对地绝对值相等。
由于多路CSR并联，在桥路工作时电感L4与电感L5在相同时刻储存能量不相等，因此，在电感L4与电感L5之间包括有二极管D7与二极管D8。
所述二极管D7与二极管D8串联在电感与负荷回路中，接法是，二极管D7的阳极接整流桥负极与电感L5连接处，阴极接回路正输出；二极管D8的阳极接回路负输出，阴极接整流桥正极与电感L4连接处。
所述二极管D7作为电感L5储存能量的释放通路，二极管D8作为电感L4储存能量的释放通路，每个电感在各自的桥路正负输出中独立完成储存能量和释放能量过程，互不干扰，不会形成过电压。
以上本发明利用各个并联CSR回路中的二极管D7、二极管D8两个二极管为CSR各桥路以及并联各回路提供了完美电流通路。解决了IGBT管动作速度不一致的问题，解决了电感L参数差异问题，从而完成CSR多路并联，使直流输出正负极对地电压大小相等符号相反。
本实施例的图2画出两组CSR并联回路示意图，图中元器件标号2代表第二组CSR中的元器件，如V21代表第二组CSR中A相上桥臂IGBT管，N组并联只是增加CSR回路，CSR输入与输出并联即可。
本发明为要求多路CSR并联，给直流输出正负极对地电压大小相等符号相反的负荷供电。如图2所示，本发明要求输入端电源中性点不接地；在直流输出回路设计电感L4与电感L5，使电感L4与电感L5参数相等；设计电容C4与电容C5，使电容C4与电容C5电容参数相等，增加D为接地点。设计二极管D7与二极管D8，二极管D7作为电感L5储存能量的释放通路，二极管D8作为电感L4储存能量的释放通路，每个电感在各自的桥路输出中独立完成储存能量和释放能量过程，完成整流输出。
以上所述仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是在本发明的发明构思下，利用本发明说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本发明的专利保护范围内。

Claims (1)

1.一种CSR高频PWM整流电路输出对地平衡的并联方法，其特征在于：在直流输出回路正负两侧各包括有一个电感，所述两个电感参数相等；该两个电感各有一个二极管串联在电感与负荷回路中，作为电感储存能量释放通路，实现多个CSR回路并联。
CN202210226483.1A 2022-03-09 2022-03-09 Csr高频pwm整流电路输出对地平衡的并联方法 Pending CN114583988A (zh)

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WO2024031223A1 (zh) * 2022-08-08 2024-02-15 薛洛良 三相csr整流电路节能和并联叠加的接线方法

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CN104078992B (zh) * 2013-03-31 2018-05-04 张良华 一种储能电压平衡电力电子电能变换系统及其控制方法
US10574136B2 (en) * 2018-04-17 2020-02-25 Abb Schweiz Ag Methods and systems for controlling current source rectifiers
CN107134935A (zh) * 2017-05-25 2017-09-05 重庆理工大学 一种降低电流型pwm整流器开关损耗的调制方法
CN207173336U (zh) * 2017-09-07 2018-04-03 薛洛良 一种用于电动车蓄电池的直流充电装置
CN110601160B (zh) * 2019-09-19 2021-10-29 散裂中子源科学中心 一种高能回馈型负载能量回流泄放电路及其能量泄放方法
CN111800026B (zh) * 2020-06-30 2022-04-15 东南大学 一种三相电流型七电平pwm整流器的空间矢量调制策略

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WO2024031223A1 (zh) * 2022-08-08 2024-02-15 薛洛良 三相csr整流电路节能和并联叠加的接线方法

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