CN107317485A - 用于控制功率转换装置的操作的设备 - Google Patents
用于控制功率转换装置的操作的设备 Download PDFInfo
- Publication number
- CN107317485A CN107317485A CN201611026366.1A CN201611026366A CN107317485A CN 107317485 A CN107317485 A CN 107317485A CN 201611026366 A CN201611026366 A CN 201611026366A CN 107317485 A CN107317485 A CN 107317485A
- Authority
- CN
- China
- Prior art keywords
- relay
- initial charge
- monitoring
- inverter
- parts
- 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.)
- Granted
Links
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 35
- 238000012544 monitoring process Methods 0.000 claims abstract description 52
- 238000005259 measurement Methods 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
- H02P29/024—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
- H02P29/025—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load the fault being a power interruption
-
- 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
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
- H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
- H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
- H02M5/453—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/458—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
- G01R1/203—Resistors used for electric measuring, e.g. decade resistors standards, resistors for comparators, series resistors, shunts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16504—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the components employed
- G01R19/16523—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the components employed using diodes, e.g. Zener diodes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16576—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/1659—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 to indicate that the value is within or outside a predetermined range of values (window)
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
- G01R31/3278—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches of relays, solenoids or reed switches
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/1216—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for AC-AC converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/122—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. dc/ac converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/001—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection limiting speed of change of electric quantities, e.g. soft switching on or off
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/001—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection limiting speed of change of electric quantities, e.g. soft switching on or off
- H02H9/004—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection limiting speed of change of electric quantities, e.g. soft switching on or off in connection with live-insertion of plug-in units
-
- 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
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
-
- 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
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/34—Snubber 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/02—Details of starting control
- H02P1/04—Means for controlling progress of starting sequence in dependence upon time or upon current, speed, or other motor parameter
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
- H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
- H02P27/085—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation wherein the PWM mode is adapted on the running conditions of the motor, e.g. the switching frequency
-
- 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
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/34—Snubber circuits
- H02M1/346—Passive non-dissipative snubbers
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Inverter Devices (AREA)
Abstract
本发明涉及一种用于控制包括整流器部件、初始充电部件、DC链部件和逆变器部件的功率转换装置的操作的设备。所述设备包括:控制部件,其被配置为在用于DC链部件的初始充电期间如果DC链部件的DC链电压超过第一参考电压则驱动并联连接到初始充电部件的初始充电电阻器的继电器;继电器监视部件,其被配置为当驱动继电器时监视是否正常操作继电器;以逆变器驱动部件,其被配置为如果通过参照继电器监视部件的监视的结果来确定了未正常操作继电器则停止逆变器的驱动。
Description
技术领域
本发明涉及一种用于控制功率转换装置例如逆变器或者转换器的的操作的设备。
背景技术
逆变器和转换器代表功率转换装置。逆变器是将AC功率转换成DC功率且然后当被供给负载例如电机时再次将DC功率转换成AC功率的装置。逆变器用于各种产品例如风扇、泵、升降机、输送机、产品线等。用于电机驱动的通用逆变器通过整流器将三相AC功率转换成DC功率,将DC功率存储在DC链部件的电容器,且然后通过逆变器部件将所存储的DC功率转换成AC功率。
逆变器是将输入的AC或DC功率转换成DC功率的功率转换装置。转换器以与转换器类似的方式转换功率,且也在工业中以各种方式被利用。
图1是示出传统功率转换装置的配置的视图。
参照图1,功率转换装置例如逆变器104从电源102接收三相AC功率且通过整流器部件108将其转换成DC功率。所获得的DC功率被存储在DC链部件116的电容器中且通过逆变器部件120被转换成具有预定频率的AC功率。因此所获得的AC功率被供给负载106例如电机。
图1中示出的逆变器104通过根据使用在逆变器部件120中包括的开关元件T1到T6输出的PWM(脉宽调制)改变电压和频率而控制负载106的驱动速度。
初始充电部件110被施加于逆变器系统,如图1所示。初始充电部件110被提供以防止由于输入到逆变器104的浪涌电流而出现过流,从而防止元件的介质击穿。初始充电部件110的初始充电电阻器112仅在最初对逆变器104上电时操作。在完成初始充电操作之后,初始充电部件110通过初始充电电阻器112切换电流到继电器114的流动以防止不必要的功率损失。
根据传统功率转换装置,如图1所示的控制器10用于控制逆变器104的这种操作。控制器110包括控制部件12和逆变器驱动部件14。
当最初对逆变器10上电时,随着AC功率从电源102被施加到逆变器10,控制部件12控制流过初始充电电阻器112的电流,由此用电压对DC链部件116的电容器进行充电。在该初始充电操作期间,控制部件12测量DC链部件116的电压Vdc且确定所测量的电压Vdc是否超过预设参考电压。如果所测量的电压Vdc未超过预设参考电压,则控制部件12生成低电压跳闸(LVT)以限制在初始充电部件110中包括的继电器114的操作。
以供参考,本文中使用的术语“低电压跳闸(LVT)”意味着指示DC链部件116的电压Vdc未超过预设参考电压的信号。控制部件12可以通过LVT信号来通知继电器114或其它部件DC链部件116的电压Vdc未超过预设参考电压。换言之,在接收到LVT信号时,继电器114或其它模块可以识别DC链部件116的电压Vdc未超过预设参考电压。
如果所测量的电压Vdc超过预设参考电压,则控制部件12释放LVT以驱动继电器114。因此,电流被流入到继电器114而不是最初充电电阻器112。
在释放LVT之后,控制部件12控制逆变器驱动部件14来生成PWM信号以驱动逆变器104。
然而,根据该传统技术,如果由于异常的出现而未正常驱动继电器114,则尽管通过控制部件12释放LVT,但是电流继续流过初始充电电阻器112。此时,如果连接到逆变器104的负载106可以仅用流过初始充电电阻器112的较小电流来驱动,则DC链部件116的电压Vdc未低于预设参考电压。因此,即使继电器114中出现异常,用户不能检测继电器114的异常。以这种方式,当电流继续流过初始充电电阻器112时甚至在结束最初充电操作之后,继电器114可能由于过热而损坏,这可以导致不可能使用功率转换装置。
发明内容
本发明的一个方面在于提供一种用于控制功率转换装置的操作的设备,其能够通过正确地检测在功率转换装置中包括的继电器的异常的出现而减小功率转换装置的故障率且增加产品可靠性。
本发明的另一个方面在于提供一种用于控制功率转换装置的操作的设备,其能够用简单算法和低成本来正确地检测在功率转换装置中包括的继电器的异常的出现。
本发明不限于以上方面,并且本发明的其它方面将从以下描述中由本领域的那些技术人员清楚理解。本发明的上述和/或其他方面和优点将结合附图从实施例的以下描述中变得显而易见且更容易理解。应当理解的是本发明的目的和优点可以通过权利要求中给出的特征及其组合来实现。
根据本发明的一个方面,提供一种用于控制包括整流器部件、初始充电部件、DC链部件和逆变器部件的功率转换装置的操作的设备,包括:控制部件,其被配置为在用于DC链部件的初始充电期间如果DC链部件的DC链电压超过第一参考电压则驱动并联连接到初始充电部件的初始充电电阻器的继电器;继电器监视部件,其被配置为当驱动继电器时监视是否正常操作继电器;以逆变器驱动部件,其被配置为如果通过参照继电器监视部件的监视的结果来确定了未正常操作继电器则停止逆变器的驱动。
根据本发明,可以通过正确地检测在功率转换装置中包括的继电器的异常的出现而减小功率转换装置的故障率且增加产品可靠性
根据本发明,可以用简单算法和低成本来正确地检测在功率转换装置中包括的继电器的异常的出现。
附图说明
图1是示出传统功率转换装置的配置的视图。
图2是示出根据本发明的一个实施例的功率转换装置和用于控制功率转换装置的操作的设备的配置的视图。
图3是示出根据本发明的一个实施例的用于控制功率转换装置的操作的设备的继电器监视部件的电路图。
图4是根据本发明的一个实施例的用于控制功率转换装置的操作的方法的流程图。
图5是当在本发明的一个实施例中正常操作继电器时产生的一些信号的时序图。
图6是当在本发明的一个实施例中在继电器中出现异常时产生的一些信号的时序图。
具体实施方式
上面目的、特征和优点将结合附图从以下详细描述中变得更清楚地明显的。因此,本发明的技术构思能够容易地由本领域技术人员实施。在本发明的以下详细描述中,如果认为功能和/或结构可以不必要地使本发明的要旨模糊不清,则将省略关于有关功能或结构的具体描述。在下文中,将参考附图详细描述本发明的优选实施例。在附图中,相同的附图标记被给予相同的或相似的部件。
图2是示出根据本发明的一个实施例的功率转换装置和用于控制功率转换装置的操作的设备的配置的视图。
在下文中,将用于逆变器来示出功率转换装置。以供参考,在图2中,虽然用逆变器204来示出功率转换装置,但是用于控制本发明的功率转换装置的操作的设备可以施加于转换器而不是逆变器。
参照图2,功率抓换装置例如逆变器204从电源202接收三相AC功率且通过整流器部件208将其转换成DC功率。所获得的DC功率被存储在DC链部件216的电容器中且通过逆变器部件220被转换成具有预定频率的AC功率。因此所获得AC功率被供给负载206例如电机。
图2中示出的逆变器204通过根据使用在逆变器部件120中包括的开关元件T1到T6输出的PWM(脉宽调制)改变电压和频率而控制负载106的驱动速度。
初始充电部件210被施加于逆变器系统,如图2所示。初始充电部件210被提供以防止由于输入到逆变器204的浪涌电流而出现过流,从而防止元件的介质击穿。初始充电部件210的初始充电电阻器212仅在最初对逆变器204上电时操作。在完成初始充电操作之后,初始充电部件210通过初始充电电阻器212切换电流到继电器214的流动以防止不必要的功率损失。
参照图2,根据本发明的一个实施例的用于控制功率转换装置的操作的设备20包括控制部件22、继电器监视部件24和逆变器驱动部件16。此外,虽然在图2中未示出,但是根据本发明的一个实施例的用于控制功率转换装置的操作的设备20还可以包括跳闸发生器(未示出)。
控制部件22控制输入到初始充电部件210的电流流过初始充电电阻器212和继电器214中的一个。为此,控制部件22可以通过继电器操作信号(MC)驱动继电器214。如果控制部件22未施加继电器操作信号(MC),则未驱动继电器214且输入到初始充电部件210的电流流过初始充电电阻器212。如果控制部件22施加继电器操作信号(MC),则驱动继电器且输入到初始充电部件210的电流流过继电器214。
在本发明的一个实施例中,控制部件22可以在DC链部件216期间监视(或者测量)DC链部件216的电压Vdc。如果所测量的电压Vdc超过预设第一参考电压,则控制部件22驱动并联连接到初始充电部件210的初始充电电阻器212的继电器214。
当控制部件22驱动继电器214时,继电器监视部件24监视是否正常操作继电器214。在本发明的一个实施例中,如果正常操作继电器214,则继电器监视部件24输出第一监视信号(例如高电平的信号)。否则,继电器监视部件24输出第二监视信号(例如低电平的信号)。
控制部件22基于从继电器监视部件24输出的监视信号来确定是否正常操作继电器214。如果确定了未正常操作继电器214,则控制部件22将继电器故障信号(MCT)发送到逆变器驱动部件26。在接收继电器故障信号(MCT)时,逆变器驱动部件26通过未施加PWM信号到在逆变器部件220中包括的开关元件T1到T6的门而停止驱动逆变器部件220。相反地,在未接收继电器故障信号(MCT)时,逆变器驱动部件26通过施加PWM信号到在逆变器部件220中包括的开关元件T1到T6的门而驱动逆变器部件220。
如果基于通过继电器监视部件24的监视的结果而确定了未正常操作继电器214,则跳闸发生器(未示出)递送跳闸信息到用户。例如,跳闸发生器(未示出)可以通过用户终端的显示器递送跳闸信息到用户来通知用户继电器214的异常。此外,跳闸发生器(未示出)可以通过用户终端的扬声器发出声音来通知用户继电器214的异常。
在下文中,将参照图2到图4详细描述根据本发明的一个实施例的用于控制功率转换装置的操作的设备和方法。
图4是根据本发明的一个实施例的用于控制功率转换装置的操作的方法的流程图。
参照图4,首先,控制部件22驱动电源202以将功率施加于逆变器204(402)。因此,从整流器部件208输出的功率经由初始充电部件210被存储在DC链部件216的电容器中。该过程继续直到DC链路部件216的电压Vdc超过预设第一参考电压为止,这也称为“初始充电操作”。在该初始充电操作中,控制部件22未驱动继电器214且电流流过初始充电电阻器212。
再次参照图4,在初始充电操作中,控制部件22确定DC链电压Vdc是否超过预设第一参考电压(404)。以供参考,用户可以任意设置第一参考电压。
如果确定了DC链电压Vdc未超过第一参考电压(在404中的否),则控制部件22通过生成低电压跳闸(LVT)来防止驱动继电器214。因此,电流继续流过初始充电电阻器212。
如果确定了DC链电压Vdc超过第一参考电压(在404中的是),控制部件22释放低电压跳闸(LVT)。因此,将继电器操作信号(MC)递送到继电器214且驱动继电器214(406)。此时,电流流过继电器214而不是初始充电电阻器212。
当驱动继电器214时,继电器监视部件24监视实际上是否正常操作继电器214(408)。在本发明的一个实施例中,如果跨初始充电电阻器212测量的电压超过预设第二参考电压,则继电器监视部件24输出第一监视信号。否则,继电器监视部件24输出第二监视信号。以供参考,用户可以任意设置第二参考电压。以这种方式,控制部件22可以通过参照由继电器监视部件24输出的监视信号(MCM)即第一监视信号或第二日监视信号来确定是否正常操作继电器214。
在本发明的另一个实施例中,继电器监视部件24可以基于初始充电电阻器212的电阻来设置第二参考电压。更具体地,继电器监视部件可以设置第二参考电压与初始充电电阻器212的电阻成反比。因此,继电器监视部件214可以考虑甚至当正常驱动继电器214时因为由于初始充电电阻器212的较小电阻而流动较小电流施加电压的情况来设置第二参考电压。
图3是示出根据本发明的一个实施例的用于控制功率转换装置的操作的设备的继电器监视部件的电路图。
参照图3,根据本发明的一个实施例的用于控制功率转换装置的操作的设备的继电器监视部件包括并联连接到初始充电电阻器212的限流电阻器R1和串联连接到限流电阻器R1的光耦合器302。在图3中示出的输入端子P1和输入端子P2分别连接到初始充电电阻器212的两端,如图2所示。
基于在通过输入端子P1和输入端子P2跨初始充电电阻器212测量的电压和通过输入端子P3输出的第二参考电压之间的比较的结果,光耦合器302通过输出端子304输出第一监视信号(例如高电平信号)或第二监视信号(例如低电平信号)。以供参考,用户可以任意设置第二参考电压。
如果电流流过继电器214,则这意味着没有电流流过初始充电电阻器212。在该情况下,跨初始充电电阻器212的电压变为0V,其小于第二参考电压。因此,图3的光耦合器302被关闭且第一监视信号(例如高电平信号)通过输出端子304输出。
如果尽管驱动继电器214而没有电流流过初始充电电阻器212,则这意味着电流流过初始充电电阻器212。在该情况下,跨初始充电电阻器212的电压超过第二参考电压。因此,图3的光耦合器302打开且第二监视信号(例如低电平信号)通过输出端子304输出。
以这种方式,通过参考通过输出端子304输出的监视信号,当驱动继电器214时,控制部件22可以确定电流实际上是否流过继电器214。
特别地,在图3的实施例中,可以通过使用光耦合器302而将通过输入端子P3输入的功率与通过电源202输入的功率隔离。
再次参照图4,控制部件22通过参考从继电器监视部件24输出的监视信号来确定是否正常操作继电器214(410)。
如果确定了未正常操作继电器214(在410中的否),则控制部件22将继电器故障信号(MCT)递送到逆变器驱动部件26。在接收继电器故障信号(MCT)时,逆变器驱动部件26通过未施加PWM信号到在逆变器部件220中包括的开关元件T1到T6的门来停止驱动逆变器部件220。
如果确定了正常操作继电器214(在410中的是),则控制部件22未将继电器故障信号(MCT)递送到逆变器驱动部件26。在未接收继电器故障信号(MCT)时,逆变器驱动部件26通过施加PWM信号到在逆变器部件220中包括的开关元件T1到T6的门来驱动逆变器部件220。
此外,虽然在图4中未示出,但是如果通过参照通过继电器监视部件24的监视的结果来确定了未正常操作继电器214,则跳闸发生器(未示出)递送跳闸信息到用户。例如,跳闸发生器(未示出)可以通过用户终端的显示器递送跳闸信息到用户来通知用户继电器214的异常。此外,跳闸发生器(未示出)可以通过用户终端的扬声器发出声音来通知用户继电器214的异常。
图5是当在本发明的一个实施例中正常操作时产生的一些信号的时序图。
如果在控制部件22从电源202施加功率之后DC链电压Vdc超过第一参考电压,则释放低电压跳闸(LVT)(502)。当释放低电压跳闸(LVT)时,则控制部件22递送继电器操作信号(MC)到继电器214(504)。因此,开始操作继电器214。
当根据继电器操作信号(MC)正常操作继电器214时,电流流过继电器214而不是初始充电电阻器212。因此,继电器监视部件24输出高电平信号即第一监视信号作为监视信号(MCM)(506)。由于检测到正常操作继电器214,所以控制部件22未输出继电器故障信号(MCT)(508)。
图6是当在本发明的一个实施例中在继电器中出现异常时产生的一些信号的时序图。
如果在控制部件22从电源202施加功率之后DC链电压Vdc超过第一参考电压,则释放低电压跳闸(LVT)(602)。当释放低电压跳闸(LVT)时,则控制部件22递送继电器操作信号(MC)到继电器214(604)。因此,开始操作继电器214。
如果虽然递送了继电器操作信号(MC)但是未正常操作继电器214,则电流流过初始充电电阻器212而不是继电器214。因此,继电器监视部件24输出低电平信号即第二监视信号作为监视信号(MCM)(606)。由于检测到未正常操作继电器214,所以控制部件22输出继电器故障信号(MCT)(608)。因此,停止驱动逆变器部件220。
虽然参照本发明的示例性实施例具体地示出且描述本发明,但是本领域的技术人员将理解可以在不脱离本发明的精神和范围的情况下做出形式和细节上的各种变化。出于示出本发明的目的而非限制来提供示例性实施例。因此,旨在本发明覆盖本发明的修改和变化,假设它们属于所附权利要求及其等同物的范围内。
Claims (5)
1.一种用于控制包括整流器部件、初始充电部件、DC链部件和逆变器部件的功率转换装置的操作的设备,包括:
控制部件,其被配置为在用于DC链部件的初始充电期间如果DC链部件的DC链电压超过第一参考电压则驱动并联连接到初始充电部件的初始充电电阻器的继电器;
继电器监视部件,其被配置为当驱动继电器时监视是否正常操作继电器;以及
逆变器驱动部件,其被配置为如果通过参照继电器监视部件的监视的结果确定了未正常操作继电器则停止逆变器的驱动。
2.根据权利要求1所述的设备,其中,如果跨初始充电电阻器测量的电压超过第二参考电压,则继电器监视部件输出第一监视信号,且如果跨初始充电电阻器测量的电压未超过第二参考电压,则继电器监视部件输出第二监视信号。
3.根据权利要求1所述的设备,其中,继电器监视部件包括:
限流电阻器,其连接到初始充电电阻器;以及
光耦合器,其连接到限流电阻器。
4.根据权利要求1所述的设备,其中,控制部件通过初始充电电阻器执行用于DC链部件的初始充电操作。
5.根据权利要求1所述的设备,还包括跳闸发生器,其被配置为如果通过参照继电器监视部件的监视的结果而未正常操作继电器则递送跳闸信息到用户。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020160051148A KR102526874B1 (ko) | 2016-04-26 | 2016-04-26 | 전력 변환 장치의 동작 제어 장치 |
KR10-2016-0051148 | 2016-04-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN107317485A true CN107317485A (zh) | 2017-11-03 |
CN107317485B CN107317485B (zh) | 2020-02-21 |
Family
ID=57326214
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201611026366.1A Active CN107317485B (zh) | 2016-04-26 | 2016-11-22 | 用于控制功率转换装置的操作的设备 |
Country Status (6)
Country | Link |
---|---|
US (1) | US10003296B2 (zh) |
EP (1) | EP3240175B1 (zh) |
JP (1) | JP6400658B2 (zh) |
KR (1) | KR102526874B1 (zh) |
CN (1) | CN107317485B (zh) |
ES (1) | ES2760648T3 (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110198137A (zh) * | 2018-02-26 | 2019-09-03 | Ls产电株式会社 | 逆变器控制装置和方法 |
CN110350844A (zh) * | 2018-04-04 | 2019-10-18 | 发那科株式会社 | 马达驱动装置及马达驱动装置的异常发热检测方法 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6559970B2 (ja) * | 2014-11-05 | 2019-08-14 | 三星電子株式会社Samsung Electronics Co.,Ltd. | コンバータ装置、インバータ装置及び交流機駆動装置 |
JP6128201B1 (ja) * | 2015-12-28 | 2017-05-17 | ダイキン工業株式会社 | 電源装置、その電源装置を用いたインバータ装置、並びにコンバータ装置、及びそのインバータ装置又はコンバータ装置を用いた冷凍装置、並びに空気清浄器 |
KR102007851B1 (ko) * | 2017-01-24 | 2019-10-21 | 엘지전자 주식회사 | 전력변환장치 및 이를 포함하는 공기조화장치 |
KR102520182B1 (ko) * | 2020-02-24 | 2023-04-07 | 엘에스일렉트릭(주) | 인버터 초기충전회로의 고장진단장치 및 그 방법 |
KR20220118813A (ko) * | 2021-02-19 | 2022-08-26 | 삼성전자주식회사 | 전원 공급 장치, 전자 장치, 및 그 제어 방법 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3631332A (en) * | 1970-04-14 | 1971-12-28 | Gen Electric Canada | Inverter starting circuit |
JPH10136129A (ja) * | 1996-10-30 | 1998-05-22 | Oki Electric Ind Co Ltd | 回線の通話電流制御回路 |
JPH10143776A (ja) * | 1996-11-08 | 1998-05-29 | Hochiki Corp | 共同住宅用火災報知システム及び中継器 |
JP3521337B2 (ja) * | 1995-01-09 | 2004-04-19 | 三菱電機株式会社 | 空気調和機の制御装置 |
CN102474093A (zh) * | 2009-11-30 | 2012-05-23 | 株式会社东芝 | 保护继电器 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06245485A (ja) * | 1993-02-18 | 1994-09-02 | Toshiba Corp | インバータ装置 |
JPH0723523A (ja) * | 1993-06-30 | 1995-01-24 | Juki Corp | 突入防止回路の故障検出装置 |
JPH08317660A (ja) * | 1995-05-18 | 1996-11-29 | Fuji Electric Co Ltd | 電力変換装置の保護回路 |
US7613964B2 (en) * | 2006-12-28 | 2009-11-03 | General Electric Company | Relay device and corresponding method |
US7791847B2 (en) * | 2007-12-28 | 2010-09-07 | Delta Electronics, Inc. | Fault-sensing and protecting apparatus for soft start circuit of inverter and method for the same |
JP5229644B2 (ja) | 2010-06-24 | 2013-07-03 | 株式会社デンソー | 電動機駆動装置、および、これを用いた電動パワーステアリング装置 |
KR101138645B1 (ko) * | 2010-09-17 | 2012-04-26 | 주식회사 피엠디네트웍스 | 스마트 전력제어시스템 |
JP5728914B2 (ja) * | 2010-12-02 | 2015-06-03 | 富士電機株式会社 | インバータ装置 |
US9252682B2 (en) * | 2011-06-28 | 2016-02-02 | Kyocera Corporation | Grid-connected inverter apparatus and control method therefor |
KR20130032504A (ko) | 2011-09-23 | 2013-04-02 | 에스케이이노베이션 주식회사 | 릴레이 모니터링 회로 |
KR101241226B1 (ko) | 2011-10-27 | 2013-03-13 | 현대자동차주식회사 | 친환경 차량의 메인 릴레이 모니터링장치 및 방법 |
FR2990308B1 (fr) * | 2012-05-03 | 2014-04-18 | Schneider Toshiba Inverter | Procede et systeme de detection d'un defaut sur le bus continu d'alimentation d'un convertisseur de puissance |
JP2014042406A (ja) | 2012-08-22 | 2014-03-06 | Denso Corp | 電力変換装置 |
JP2015104222A (ja) | 2013-11-25 | 2015-06-04 | トヨタ自動車株式会社 | 蓄電システム |
US9595895B2 (en) * | 2014-08-28 | 2017-03-14 | Nidec Motor Corporation | Motor control system and method for protecting inrush resistor |
US20160172992A1 (en) * | 2014-12-16 | 2016-06-16 | Rockwell Automation Technologies, Inc. | Ac drive scr and relay precharging apparatus |
-
2016
- 2016-04-26 KR KR1020160051148A patent/KR102526874B1/ko active IP Right Grant
- 2016-11-14 ES ES16198611T patent/ES2760648T3/es active Active
- 2016-11-14 EP EP16198611.2A patent/EP3240175B1/en active Active
- 2016-11-18 US US15/355,964 patent/US10003296B2/en active Active
- 2016-11-22 JP JP2016226575A patent/JP6400658B2/ja not_active Expired - Fee Related
- 2016-11-22 CN CN201611026366.1A patent/CN107317485B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3631332A (en) * | 1970-04-14 | 1971-12-28 | Gen Electric Canada | Inverter starting circuit |
JP3521337B2 (ja) * | 1995-01-09 | 2004-04-19 | 三菱電機株式会社 | 空気調和機の制御装置 |
JPH10136129A (ja) * | 1996-10-30 | 1998-05-22 | Oki Electric Ind Co Ltd | 回線の通話電流制御回路 |
JPH10143776A (ja) * | 1996-11-08 | 1998-05-29 | Hochiki Corp | 共同住宅用火災報知システム及び中継器 |
CN102474093A (zh) * | 2009-11-30 | 2012-05-23 | 株式会社东芝 | 保护继电器 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110198137A (zh) * | 2018-02-26 | 2019-09-03 | Ls产电株式会社 | 逆变器控制装置和方法 |
CN110350844A (zh) * | 2018-04-04 | 2019-10-18 | 发那科株式会社 | 马达驱动装置及马达驱动装置的异常发热检测方法 |
CN110350844B (zh) * | 2018-04-04 | 2021-03-16 | 发那科株式会社 | 马达驱动装置及马达驱动装置的异常发热检测方法 |
Also Published As
Publication number | Publication date |
---|---|
EP3240175A1 (en) | 2017-11-01 |
US20170310208A1 (en) | 2017-10-26 |
KR20170122057A (ko) | 2017-11-03 |
KR102526874B1 (ko) | 2023-04-27 |
JP6400658B2 (ja) | 2018-10-03 |
CN107317485B (zh) | 2020-02-21 |
EP3240175B1 (en) | 2019-10-02 |
US10003296B2 (en) | 2018-06-19 |
JP2017200421A (ja) | 2017-11-02 |
ES2760648T3 (es) | 2020-05-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107317485A (zh) | 用于控制功率转换装置的操作的设备 | |
US5847533A (en) | Procedure and apparatus for braking a synchronous motor | |
CN108964572B (zh) | 一种用于电机主动短路控制的方法及系统 | |
CN105636820B (zh) | 用于电驱动单元的安全电路设备 | |
CN105813882B (zh) | 用于使电机运行的设备和方法 | |
US10320281B2 (en) | Converter apparatus having function of detecting failure of power device, and method for detecting failure of power device | |
EP2390997A2 (en) | Variable frequency drive and methods for filter capacitor fault detection | |
CN105765814B (zh) | 电路中的至少一个电能存储单元特别是电容器放电的方法 | |
US9018889B2 (en) | Hardware-based, redundant overvoltage protection | |
KR20150013150A (ko) | 가변 속도 드라이브 내 지락 검출 및 가변 속도 드라이브 보호를 위한 시스템 및 방법 | |
US9998060B2 (en) | System and method for capacitor fault energy interruption in adjustable speed drives | |
CN101330251A (zh) | 对永磁电动机控制电路的保护 | |
US6422350B1 (en) | Monitoring device for drive equipment for elevators | |
US9825577B2 (en) | Drive control device of a brushless DC motor | |
CN106416054B (zh) | 用于变换电机的运行状态的方法和装置、变流器和机动车 | |
CN110824301B (zh) | 用于检测绝缘故障、电机相中断的方法以及驱动电路 | |
CN111010051A (zh) | 电动机驱动装置 | |
US9843279B2 (en) | Phase current detection system | |
JP2013240238A (ja) | 電力変換装置 | |
JP5993734B2 (ja) | 充電装置 | |
CN108631667B (zh) | 绕线形感应机的控制系统、控制装置及控制方法 | |
DK2899872T3 (en) | DC power supply system and method for safety-relevant switching off of a DC drive | |
KR100492758B1 (ko) | 하이브리드 모터 스타터의 정지 제어회로 | |
CN110021915B (zh) | 用于保护具有旋转场的电气设备的过电压保护设备和方法 | |
CN106921335A (zh) | 操作开关磁阻电机的方法 |
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 | ||
GR01 | Patent grant | ||
GR01 | Patent grant |