WO2015089870A1 - 变流器控制方法和装置 - Google Patents

变流器控制方法和装置 Download PDF

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Publication number
WO2015089870A1
WO2015089870A1 PCT/CN2013/090443 CN2013090443W WO2015089870A1 WO 2015089870 A1 WO2015089870 A1 WO 2015089870A1 CN 2013090443 W CN2013090443 W CN 2013090443W WO 2015089870 A1 WO2015089870 A1 WO 2015089870A1
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WO
WIPO (PCT)
Prior art keywords
grid
converter
side converter
converters
network
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PCT/CN2013/090443
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English (en)
French (fr)
Inventor
耿辉
徐从谦
张�林
王乃福
周鹏
Original Assignee
北车大连电力牵引研发中心有限公司
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Publication of WO2015089870A1 publication Critical patent/WO2015089870A1/zh

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/003Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to inverters
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/01Arrangements for reducing harmonics or ripples
    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/40Arrangements for reducing harmonics

Definitions

  • the invention relates to the field of locomotive control, and in particular to a converter control method and device. Background technique
  • a series of high-power AC drive electric vehicles are generally equipped with several grid-side converters according to the number of moving trains to achieve complete vehicle control.
  • Grid-side converters generally use Pulse-Width Modulation (PMW) control technology, so they are also called pulse rectifiers.
  • PMW Pulse-Width Modulation
  • the respective triangular-side converters for pulse width modulation form a different angular difference. Thereby eliminating harmonics of a fixed frequency.
  • the triangular carrier of each grid-side converter is determined by the position or code of each grid-side converter.
  • each network-side converter adopts a homogenous modulation method according to the position or coding of each network-side converter to form respective triangular carriers for pulse width modulation, and these triangular carriers are based on the grid voltage base.
  • the rising or falling zero point of the wave acts as a common reference point for each grid-side converter, forming different angular differences, so that the harmonics generated by the respective grid-side converters cancel each other out, thereby achieving the purpose of eliminating harmonics.
  • the angle difference between the triangular carrier of each grid-side converter and the reference point is called the carrier angle, and the carrier angle of each grid-side converter is fixed after the position or code of each grid-side converter is determined. .
  • the invention provides a method and a device for controlling a converter, which are used for solving the problem that some subharmonics cannot cancel each other when one or the network side converter fails in the existing converter control method.
  • An aspect of the present invention provides a converter control method, including:
  • Another aspect of the present invention provides a converter control apparatus, including:
  • An obtaining module configured to acquire an operating state of each network side converter
  • a determining module configured to determine a carrier angle of each of the network-side converters according to an operating state of each of the network-side converters.
  • the converter control method and device provided by the present invention determines the carrier angle of each network side converter according to the working state of each network side converter, so that when one or more grid side converters are faulty, The carrier angle of each network side converter can be adjusted in time, so that the subharmonics of the respective network side converters are offset each other as much as possible, so that the electric harmonic current of the whole vehicle does not increase.
  • Embodiment 1 is a schematic flow chart of Embodiment 1 of a converter control method according to the present invention
  • Embodiment 2 is a schematic flowchart of Embodiment 2 of a converter control method according to the present invention
  • Embodiment 3 is a schematic structural diagram of Embodiment 1 of a converter control device according to the present invention.
  • FIG. 4 is a schematic structural diagram of Embodiment 2 of a converter control device according to the present invention.
  • 1 is a schematic flow chart of a first embodiment of a method for controlling a converter according to the present invention. As shown in FIG. 1, the converter control method includes:
  • Step 101 Acquire an operating state of each network side converter.
  • the execution body of the embodiment is a converter control device
  • the converter control device may be a vehicle control device of the locomotive, or may be a grid-side converter control device, or be independent of the vehicle control device.
  • the converter control settings are set independently of the grid-side converter control device, which is not limited herein.
  • Embodiments of the present invention are described by taking a vehicle control device as a converter control device as an example.
  • the vehicle control device and each network-side converter control device perform two-way data communication through a specific locomotive network bus, and the vehicle control device can Obtaining the working state of each network side converter through the network bus, and the working state of each network side converter means that each network side converter is working normally, or The person is malfunctioning.
  • the step 101 can be performed according to actual needs, that is, the step 101 can be executed every preset time or when the execution instruction is received, and the preset time can be set according to actual needs, for example, 100 milliseconds. 10 seconds, 1 minute, 10 minutes or 1 hour, etc., this embodiment is not limited.
  • Step 102 Determine a carrier angle of each network side converter according to an operating state of each network side converter.
  • the carrier angle of the grid-side converter refers to an angle difference between the triangular carrier of the pulse width modulation and the reference point of the grid-side converter, and the carrier angle may be any angle value greater than or equal to 0° and less than 180°.
  • the carrier angle of each grid-side converter is related to the number of grid-side converters participating in the operation.
  • the current harmonics of the whole vehicle are mainly concentrated at 100 Hz, 150 Hz, 200 Hz, 250 Hz, etc., generally an integer multiple of the PWM signal.
  • the method further includes:
  • the determined carrier angles of the respective network side converters are transmitted to the respective network side converters so that the respective network side converters adjust respective carriers according to the carrier angle.
  • the grid-side converter can control the grid-side converter for the pulse width modulation carrier to delay or rise 60° ahead of the grid voltage rise.
  • each network When the side converter control generates the respective carriers for pulse width modulation, the delay or advance angle of the respective carriers with respect to the reference point is different, but the delay or the advance direction with respect to the reference point is the same, that is, all the grid side converters
  • the carriers are each delayed by a respective angle with respect to the reference point, or both are advanced with respect to the reference point.
  • the converter control method provided by the embodiment of the present invention determines the carrier angle of each network-side converter according to the working state of each network-side converter, so that when one or more grid-side converters are faulty, By adjusting the carrier angle of each network side converter in time, the subharmonics generated by the respective network side converters are offset as much as possible, so that the current harmonics of the whole vehicle are not increased.
  • FIG. 2 is a schematic flowchart diagram of Embodiment 2 of a converter control method according to the present invention.
  • the converter control method includes:
  • Step 201 Acquire an operating state of each network side converter.
  • This step is the same as step 101 and will not be described here.
  • Step 202 Determine the number of the network-side converters that are working normally according to the working states of the respective network-side converters.
  • a counter may be set in the vehicle control device for counting the number of mesh-side converters that are normally operating.
  • Step 203 Determine a carrier angle of each of the network-side converters that are normally working according to the number of the network-side converters that are normally working.
  • the carrier angles of the network-side converters that are working normally are determined according to the number of the network-side converters that are working normally, including:
  • the carrier angle of the Mth normal working network-side converter is (M-l)x r/N degrees, where M and N are positive integer numbers, and M is less than or equal to N. It should be noted that the working-side network-side converters can be numbered according to actual needs, which is not limited in this embodiment.
  • the carrier angle of the first normal working grid-side converter is 0°
  • the carrier angle of the second normal working grid-side converter is For 36°
  • the carrier angle of the third normal working grid-side converter is 72°
  • the carrier angle of the fourth normal working grid-side converter is 108°
  • the fifth normal working grid-side converter The carrier angle of the device is 144°.
  • step 202 further includes:
  • step 203a it is determined whether there is a change in the number of normal-operated network-side converters.
  • step 203 If yes, perform step 203;
  • step 204 is performed, and the carrier angle of each of the network-side converters remains unchanged.
  • a memory can be provided in the vehicle control device for storing the number of normally operating grid side converters. If the number of currently working grid-side converters is different from the number of normally operating grid-side converters, the number of normally working grid-side converters has changed, and then the currently determined The number of the normal-operated network-side converters is stored in the memory, and step 203 is performed. If the number of the normal-operated network-side converters does not change, the network-side converters that have no new faults are changed. The streamer can keep the original carrier angle unchanged.
  • Step 205 Send the determined carrier angles of the network-side converters to the network-side converters, so that the network-side converters adjust respective carriers according to the carrier angle. For example, if the number of normal working grid-side converters is five, each grid-side converter receives the respective carrier angles sent by the vehicle control device, and generates respective ones according to the information of the reference points.
  • the triangular carrier assuming that each triangular carrier is delayed with respect to the reference point, each of the generated triangular carriers is sequentially delayed by 0°, 36°, 72°, 108°, and 144° with respect to the reference point.
  • the converter control method provided in this embodiment determines the carrier angle of each normally working network-side converter according to the number of normally operated grid-side converters, so that there is one or more grid-side converters.
  • the carrier angle of each grid-side converter can be adjusted in time to try to make the subharmonics generated by the respective network-side converters cancel each other out, so that the current harmonics of the whole vehicle will not increase.
  • FIG. 3 is a schematic structural diagram of Embodiment 1 of a converter control device according to the present invention.
  • the converter control device 300 includes: an acquisition module 301 and a determination module 302.
  • the obtaining module 301 is configured to obtain an operating state of each network-side converter.
  • the determining module 302 is configured to determine a carrier angle of each network-side converter according to an operating state of each network-side converter.
  • the determining module 302 is further configured to:
  • the determined carrier angles of the respective network side converters are transmitted to the respective network side converters so that the respective network side converters adjust respective carriers according to the carrier angle.
  • the converter control device 300 provided in this embodiment may be a vehicle control device, or a grid-side converter control device, or an independently-connected converter control device, which is not used in this embodiment. limited.
  • the converter control device 300 provided in this embodiment may be a vehicle control device, or a grid-side converter control device, or an independently-connected converter control device, which is not used in this embodiment. limited.
  • the functions and control procedures of the various parts of the converter control device provided in this embodiment reference may be made to the description of the embodiment of the converter control method provided by the embodiment of the present invention, which is not described herein.
  • the converter control device determines the carrier angle of each network-side converter according to the working state of each network-side converter, so that when one or more grid-side converters are faulty, Adjust the carrier angle of each network side converter in time, so as to make the subharmonics generated by the grid side converters cancel each other as much as possible, so that the current harmonics of the whole vehicle will not increase.
  • FIG. 4 is a schematic structural diagram of Embodiment 2 of a converter control device according to the present invention. As shown in FIG. 4, on the basis of FIG. 3, the above determining module 302 is specifically configured to:
  • the number of normal working network side converters is determined; according to the number of normal working network side converters, the carrier angle of each working network side converter is determined. Specifically, if the number of the working network-side converters is N, the determining module 302 is specifically configured to:
  • the carrier angle of the Mth normal working network-side converter is (M-l)x r/N degrees, where M and N are positive integers, and M is less than or equal to N.
  • the above-described converter control device 300 further includes: a determination module 401.
  • the determining module 401 is specifically configured to:
  • the determination module 302 is triggered.
  • the converter control device determines the carrier angle of each normally working network-side converter according to the number of normally operated grid-side converters, so that there is one or more grid-side converters.
  • the carrier angle of each grid-side converter can be adjusted in time to try to make the subharmonics generated by the respective network-side converters cancel each other out, so that the current harmonics of the whole vehicle will not increase.

Abstract

一种变流器控制方法和变流器控制装置(300)。该变流器控制方法包括:获取各网侧变流器的工作状态(101);根据所述各网侧变流器的工作状态确定所述各网侧变流器的载波角(102)。该变流器控制方法和变流器控制装置(300)可在一个或多个网侧变流器发生故障时及时调整各网侧变流器的载波角,从而抑制整车电流谐波。

Description

变流器控制方法和装置
技术领域
本发明涉及机车控制领域, 尤其涉及一种变流器控制方法和装置。 背景技术
一列大功率交流传动电动车组一般根据动车车厢数量配备数个网侧 变流器, 以实现整车的控制。 网侧变流器一般采用脉宽调制 (Pulse-Width Modulation, 简称 PMW) 控制技术, 所以也称为脉冲整流器。 为了避免对 于铁路信号产生影响, 一般要求整车的总电流具有较低的谐波, 要达到这 一目的, 一般采用使各个网侧变流器用于脉宽调制的三角载波形成不同的 角度差, 从而消去固定频率的谐波。 各网侧变流器的三角载波由各网侧变 流器的位置或编码确定。
通常, 每台网侧变流器相应的控制单元, 根据各网侧变流器的位置或编 码采用同歩调制的方式, 形成各自用于脉宽调制的三角载波, 这些三角载波 以电网电压基波的上升过零点或下降过零点作为各网侧变流器共同的基准 点, 形成不同的角度差, 使各台网侧变流器生成的谐波互相抵消, 从而达到 消去谐波的目的。 每台网侧变流器的三角载波与基准点之间的角度差称为载 波角, 各网侧变流器的载波角在各网侧变流器的位置或编码确定后是固定不 变的。
由于各网侧变流器的载波角与工作的网侧变流器的数量相关, 当动车 组上一台或几台网侧变流器因为故障或其他原因停止工作时,参与工作的 网侧变流器数量发生了改变而载波角没有变化,这就会导致某些次电流谐 波无法相互抵消, 从而整车的电流谐波就会增大。 发明内容
本发明提供 种变流器控制方法和装置, 用于解决现有变流器控制方 法中, 在一台或 台网侧变流器故障时, 导致某些次谐波无法相互抵消的 问题。 本发明一方面提供一种变流器控制方法, 包括:
获取各网侧变流器的工作状态;
根据所述各网侧变流器的工作状态, 确定所述各网侧变流器的载波 角。
本发明另一方面提供一种变流器控制装置, 包括:
获取模块, 用于获取各网侧变流器的工作状态;
确定模块, 用于根据所述各网侧变流器的工作状态, 确定所述各网侧 变流器的载波角。
本发明提供的变流器控制方法和装置, 通过根据各网侧变流器的工作 状态, 确定各网侧变流器的载波角, 使得在有一个或多个网侧变流器故障 时, 可及时调整各网侧变流器的载波角, 从而尽量使各网侧变流器的次谐 波相互抵消, 使整车的电谐波流不会增加。 附图说明
图 1为本发明提供的变流器控制方法实施例一的流程示意图;
图 2为本发明提供的变流器控制方法实施例二的流程示意图;
图 3为本发明提供的变流器控制装置实施例一的结构示意图;
图 4为本发明提供的变流器控制装置实施例二的结构示意图。 具体实施方式 图 1为本发明提供的一种变流器控制方法实施例一的流程示意图。 如 图 1所示, 该变流器控制方法包括:
歩骤 101, 获取各网侧变流器的工作状态。
具体的, 本实施例的执行主体为变流器控制装置, 该变流器控制装置 可以为机车的整车控制装置, 还可以为网侧变流器控制装置, 或者是独立 于整车控制装置和网侧变流器控制装置而独立设置的变流器控制设置, 此 处对此不做限定。 本发明各实施例以整车控制装置作为变流器控制装置为 例进行说明, 整车控制装置和各网侧变流器控制装置通过特定的机车网络 总线进行双向数据通信, 整车控制装置可以通过网络总线获取各网侧变流 器的工作状态, 各网侧变流器的工作状态指各网侧变流器是正常工作, 或 者是出现故障。
此外, 可以根据实际需要执行歩骤 101, 即可以每隔预设时间执行歩 骤 101或者接收到执行指令时再执行该歩骤 101, 该预设时间可以根据实 际需要进行设定,例如 100毫秒, 10秒, 1分钟、 10分钟或者 1小时等等, 本实施例不做限定。
歩骤 102, 根据各网侧变流器的工作状态, 确定各网侧变流器的载波 角。
其中, 网侧变流器的载波角指该网侧变流器用于脉宽调制的三角载波 与基准点的角度差, 载波角可以是大于或等于 0°且小于 180°的任一角度 值, 各网侧变流器的载波角与参与工作的网侧变流器的数量有关。
举例来说, 若网侧变流器的 PWM控制信号的频率为 50赫兹 (Hz) , 则整车的电流谐波主要集中在 100Hz、 150Hz, 200Hz、 250Hz等, 一般为 PWM信号的整数倍处, 为使整车的电流谐波较小, 通常可控制各网侧变 流器产生的各次谐波互相抵消或削弱, 从而保证整车的电流谐波较小。
进一歩的, 上述歩骤 102之后, 还包括:
将确定的各网侧变流器的载波角发送给各网侧变流器, 以使各网侧变 流器根据载波角调整各自的载波。
具体的, 假如整车控制装置确定的某网侧变流器的载波角为 60° , 表 示该网侧变流器的用于脉宽调制的载波与基准点的角度差为 60° , 若基准 点为电网电压的上升过零点, 则该网侧变流器可控制该网侧变流器用于脉 宽调制的载波比电网电压的上升过零点延迟或提前 60° , 需要说明的是, 各网侧变流器控制生成各自用于脉宽调制的载波时, 各自载波相对于基准 点的延迟或提前角度不同, 但是相对于基准点的延迟或提前的方向相同, 即所有网侧变流器的载波均相对于基准点延迟各自对应的角度, 或者均相 对于基准点提前各自对应的角度。
本发明实施例提供的变流器控制方法, 根据各网侧变流器的工作状 态, 确定各网侧变流器的载波角, 从而使得在有一个或多个网侧变流器故 障时, 通过及时调整各网侧变流器的载波角, 从而尽量使各网侧变流器产 生的次谐波相互抵消, 使整车的电流谐波不会增加。
图 2为本发明提供的变流器控制方法实施例二的流程示意图。 如图 2 所示, 该变流器控制方法包括:
歩骤 201, 获取各网侧变流器的工作状态。
该歩骤与歩骤 101—致, 在此不再赘述。
歩骤 202, 根据各网侧变流器的工作状态, 确定正常工作的网侧变流 器的数量。
具体的, 可以在整车控制装置中, 设置一计数器, 用来对正常工作的 网侧变流器的数量进行计数。
歩骤 203, 根据正常工作的网侧变流器的数量, 确定正常工作的各网 侧变流器的载波角。
具体的, 若正常工作的网侧变流器的数量为 N, 则根据正常工作的网 侧变流器的数量, 确定正常工作的各网侧变流器的载波角, 包括:
确定第 M个正常工作的网侧变流器的载波角为 (M-l)x r/N度, 其中, M、 N为正整数数, M小于或等于 N。 需要指出的是, 可以根据实际需要 将正常工作的网侧变流器进行编号, 本实施例中不做限定。
举例来说, 若正常工作的网侧变流器共有 5个, 则第 1个正常工作的 网侧变流器的载波角为 0°,第 2个正常工作的网侧变流器的载波角为 36° , 第 3个正常工作的网侧变流器的载波角为 72° , 第 4个正常工作的网侧变 流器的载波角为 108°, 第 5个正常工作的网侧变流器的载波角为 144°。
进一歩地, 上述歩骤 202之后且在歩骤 203之前, 还包括:
歩骤 203a, 判断正常工作的网侧变流器的数量是否有变化。
若有, 则执行歩骤 203 ;
若无, 则执行歩骤 204, 各网侧变流器的载波角保持不变。
具体的, 可在整车控制装置中设置一存储器, 该存储器用于存储正常 工作的网侧变流器的数量。 若当前确定的正常工作的网侧变流器的数量与 存储的正常工作的网侧变流器的数量不同, 则说明正常工作的网侧变流器 的数量发生了变化, 然后将当前确定的正常工作的网侧变流器的数量存入 该存储器, 且执行歩骤 203, 若正常工作的网侧变流器的数量无变化, 表 示无新故障的网侧变流器, 各网侧变流器可保持原来的载波角不变。
歩骤 205, 将确定的各网侧变流器的载波角发送给各网侧变流器, 以 使各网侧变流器根据载波角调整各自的载波。 举例来说, 若正常工作的网侧变流器的数量为 5个, 则各网侧变流器 收到整车控制装置发来的各自的载波角后, 根据基准点的信息, 生成各自 的三角载波, 假设各三角载波相对于基准点延迟, 则生成的各三角载波相 对于基准点依次延迟 0°、 36°、 72°、 108°、 144°。
本实施例提供的变流器控制方法, 通过根据正常工作的网侧变流器的 数量, 确定各正常工作的网侧变流器的载波角, 从而使得在有一个或多个 网侧变流器故障时, 各网侧变流器的载波角能及时调整, 以尽量使各网侧 变流器产生的次谐波互相抵消, 从而使整车的电流谐波不会增加。
图 3为本发明提供的变流器控制装置实施例一的结构示意图。 如图 1 所示, 该变流器控制装置 300包括: 获取模块 301和确定模块 302。
其中, 获取模块 301, 用于获取各网侧变流器的工作状态; 确定模块 302用于根据各网侧变流器的工作状态, 确定各网侧变流器的载波角。
进一歩地, 所述确定模块 302在根据各网侧变流器的工作状态, 确定 各网侧变流器的载波角之后, 还用于:
将确定的各网侧变流器的载波角发送给各网侧变流器, 以使各网侧变 流器根据载波角调整各自的载波。
具体的, 本实施例提供的变流器控制装置 300, 可以为整车控制装置, 或者为网侧变流器控制装置, 或者为独立设置的变流器控制装置, 本实施 例对此不做限定。 本实施例提供的变流器控制装置的各部分功能及控制过 程可参照本发明实施例提供的变流器控制方法实施例的说明, 此处不再赘 述。
本发明实施例提供的变流器控制装置, 根据各网侧变流器的工作状 态,确定各网侧变流器的载波角,使得在有一个或多个网侧变流器故障时, 通过及时调整各网侧变流器的载波角, 从而尽量使各网侧变流器产生的次 谐波相互抵消, 使整车的电流谐波不会增加。
图 4为本发明提供的变流器控制装置实施例二的结构示意图。 如图 4 所示, 在图 3的基础上, 上述确定模块 302具体用于:
根据各网侧变流器的工作状态, 确定正常工作的网侧变流器的数量; 根据正常工作的网侧变流器的数量, 确定正常工作的各网侧变流器的 载波角。 具体的, 若正常工作的网侧变流器的数量为 N, 则确定模块 302具体 用于:
确定第 M个正常工作的网侧变流器的载波角为 (M-l)x r/N度, 其中, M、 N为正整数, M小于或等于 N。
进一歩地, 上述变流器控制装置 300还包括: 判断模块 401。
其中, 判断模块 401具体用于:
判断正常工作的网侧变流器的数量是否有变化;
若有, 则触发确定模块 302。
本实施例提供的变流器控制装置 300的各部分功能及控制过程可参照 本发明实施例提供的变流器控制方法实施例的说明, 此处不再赘述。
本实施例提供的变流器控制装置, 通过根据正常工作的网侧变流器的 数量, 确定各正常工作的网侧变流器的载波角, 从而使得在有一个或多个 网侧变流器故障时, 各网侧变流器的载波角能及时调整, 以尽量使各网侧 变流器产生的次谐波互相抵消, 从而使整车的电流谐波不会增加。
本领域普通技术人员可以理解: 实现上述方法实施例的全部或部分歩 骤可以通过程序指令相关的硬件来完成, 前述的程序可以存储于一计算机 可读取存储介质中, 该程序在执行时, 执行包括上述方法实施例的歩骤; 而前述的存储介质包括: ROM、 RAM, 磁碟或者光盘等各种可以存储程 序代码的介质。 最后应说明的是: 以上实施例仅用以说明本发明的技术方 案, 而非对其限制; 尽管参照前述实施例对本发明进行了详细的说明, 本 领域的普通技术人员应当理解: 其依然可以对前述各实施例所记带的技术 方案进行修改, 或者对其中部分技术特征进行等同替换; 而这些修改或者 替换, 并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和 范围。

Claims

权 利 要 求 书
1、 一种变流器控制方法, 其特征在于, 包括:
获取各网侧变流器的工作状态;
根据所述各网侧变流器的工作状态, 确定所述各网侧变流器的载波 角。
2、 根据权利要求 1所述的变流器控制方法, 其特征在于, 所述根据 所述各网侧变流器的工作状态, 确定所述各网侧变流器的载波角, 包括: 根据所述各网侧变流器的工作状态, 确定正常工作的网侧变流器的数 根据所述正常工作的网侧变流器的数量, 确定正常工作的各网侧变流 器的载波角。
3、 根据权利要求 2所述的变流器控制方法, 其特征在于, 在所述根 据所述各网侧变流器的工作状态, 确定所述各网侧变流器的载波角之前, 还包括:
判断正常工作的网侧变流器的数量是否有变化;
若有, 则执行根据正常工作的网侧变流器的数量, 确定正常工作的各 网侧变流器的载波角的操作。
4、 根据权利要求 2或 3所述的变流器控制方法, 其特征在于, 所述 正常工作的网侧变流器的数量为 N, 所述根据所述正常工作的网侧变流器 的数量, 确定正常工作的各网侧变流器的载波角, 包括:
确定第 M个正常工作的网侧变流器的载波角为 (M-l)x r/N度, 其中, 所述 M、 N为正整数数, M小于或等于 N。
5、 根据权利要求 1所述的变流器控制方法, 其特征在于, 所述根据 所述各网侧变流器的工作状态, 确定所述各网侧变流器的载波角之后, 还 包括:
将确定的所述各网侧变流器的载波角发送给所述各网侧变流器, 以使 所述各网侧变流器根据所述载波角调整各自的载波。
6、 一种变流器控制装置, 其特征在于, 包括:
获取模块, 用于获取各网侧变流器的工作状态;
确定模块, 用于根据所述各网侧变流器的工作状态, 确定所述各网侧 变流器的载波角。
7、 根据权利要求 6所述的变流器控制装置, 其特征在于, 所述确定 模块, 具体用于:
根据所述各网侧变流器的工作状态, 确定正常工作的网侧变流器的数 根据所述正常工作的网侧变流器的数量, 确定正常工作的各网侧变流 器的载波角。
8、 根据权利要求 7所述的变流器控制装置, 其特征在于, 还包括判 断模块, 所述判断模块具体用于:
判断正常工作的网侧变流器的数量是否有变化;
若有, 则触发所述确定模块。
9、 根据权利要求 7或 8所述的变流器控制装置, 其特征在于, 所述 正常工作的网侧变流器的数量为 N, 所述确定模块, 具体用于:
确定第 M个正常工作的网侧变流器的载波角为 (M-l)x r/N度, 其中, 所述 M、 N为正整数, M小于或等于 N。
10、 根据权利要求 6所述的变流器控制装置, 其特征在于, 所述确定 模块, 在根据所述各网侧变流器的工作状态, 确定所述各网侧变流器的载 波角之后, 还用于:
将确定的所述各网侧变流器的载波角发送给所述各网侧变流器, 以使 所述各网侧变流器根据所述载波角调整各自的载波。
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101567567A (zh) * 2009-06-05 2009-10-28 合肥工业大学 载波移相逆变大功率光伏并网系统及其控制方法
CN101959708A (zh) * 2008-03-07 2011-01-26 株式会社东芝 电车驱动装置
CN102075097A (zh) * 2010-11-29 2011-05-25 江苏省电力公司泰州供电公司 一种级联型变流器n+1故障冗余控制方法
CN102422501A (zh) * 2009-05-07 2012-04-18 西门子公司 修改电压转换设备的配置的方法和用于电压转换设备的电压转换单元
CN102638048A (zh) * 2012-03-29 2012-08-15 威凡智能电气高科技有限公司 一种h桥级联链式statcom的旁路自动处理方法
CN103296691A (zh) * 2012-03-05 2013-09-11 南方电网科学研究院有限责任公司 多端直流输电功率协调控制方法
CN203589729U (zh) * 2013-12-03 2014-05-07 威凡智能电气高科技有限公司 一种多重化自适应容错控制的有源电力滤波器

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101244382B1 (ko) * 2011-03-21 2013-03-18 최훈석 반송기의 제어장치
CN103138543A (zh) * 2011-11-28 2013-06-05 中国北车股份有限公司大连电力牵引研发中心 四象限变流器的控制装置及方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101959708A (zh) * 2008-03-07 2011-01-26 株式会社东芝 电车驱动装置
CN102422501A (zh) * 2009-05-07 2012-04-18 西门子公司 修改电压转换设备的配置的方法和用于电压转换设备的电压转换单元
CN101567567A (zh) * 2009-06-05 2009-10-28 合肥工业大学 载波移相逆变大功率光伏并网系统及其控制方法
CN102075097A (zh) * 2010-11-29 2011-05-25 江苏省电力公司泰州供电公司 一种级联型变流器n+1故障冗余控制方法
CN103296691A (zh) * 2012-03-05 2013-09-11 南方电网科学研究院有限责任公司 多端直流输电功率协调控制方法
CN102638048A (zh) * 2012-03-29 2012-08-15 威凡智能电气高科技有限公司 一种h桥级联链式statcom的旁路自动处理方法
CN203589729U (zh) * 2013-12-03 2014-05-07 威凡智能电气高科技有限公司 一种多重化自适应容错控制的有源电力滤波器

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