WO2015169265A1 - 一种开关磁阻电机功率变换器故障诊断相电流积分方法 - Google Patents

一种开关磁阻电机功率变换器故障诊断相电流积分方法 Download PDF

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WO2015169265A1
WO2015169265A1 PCT/CN2015/083046 CN2015083046W WO2015169265A1 WO 2015169265 A1 WO2015169265 A1 WO 2015169265A1 CN 2015083046 W CN2015083046 W CN 2015083046W WO 2015169265 A1 WO2015169265 A1 WO 2015169265A1
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phase
phase current
power converter
reluctance motor
fault
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陈昊
王星
王胜权
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    • 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
    • G01R31/40—Testing power supplies
    • G01R31/42—AC power supplies
    • 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
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • 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
    • G01R31/34—Testing dynamo-electric machines
    • G01R31/343—Testing dynamo-electric machines in operation
    • 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
    • G01R31/34—Testing dynamo-electric machines

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  • the invention relates to a fault current phase integration method for a power converter of a switched reluctance motor, in particular to a main switch short circuit and open circuit fault diagnosis of a power converter for a switched reluctance motor with multiple phase numbers and multiple topologies. method.
  • the fault detection and diagnosis of the switched reluctance motor power converter is mainly based on the qualitative analysis method of the system model. It is to analyze and compare the change information of the normal state and the fault state under the fault state through the modeling simulation or experimental method, and extract the residual. Or fault characteristics, in order to use the fault decision algorithm to achieve system fault separation. For systems that can accurately establish mathematical models, such methods can deeply study the system fault mechanism, which is not only beneficial to the characteristic analysis of known faults, but also has no experience or experience. Insufficient faults can also be used for performance analysis and diagnosis, so they are widely used.
  • Switched reluctance motors have different salient pole structure and non-sinusoidal power supply characteristics than traditional AC/DC motors, which cause fault separation of switched reluctance motor power converters. Fault feature extraction is significantly different from other motors.
  • the qualitative analysis method based on system model is applied to the fault diagnosis of switched reluctance motor power converter. The difficulty is that the accurate mathematical model of the switched reluctance motor system is difficult to establish.
  • the fault diagnosis method that does not require the accurate mathematical model of the switched reluctance motor system is one of the important directions in the research and technology development of the current switched reluctance motor system.
  • the object of the present invention is to provide a phase current integration method for short circuit and open circuit fault diagnosis of a main switch of a switched reluctance motor power converter according to the prior art.
  • the invention discloses a short circuit fault diagnosis method for a main switch of a switched reluctance motor power converter of the invention:
  • phase current i O (t) transient value of the switched reluctance motor power converter in a faultless state Detecting the phase current i O (t) transient value of the switched reluctance motor power converter in a faultless state, and obtaining the integral value of the phase current in a faultless state in one cycle by integral calculation:
  • n is the rotational speed of the motor
  • T is the period of change of the phase current
  • t is the time
  • n is the rotational speed of the motor
  • T is the period of change of the phase current
  • t is the time
  • the switched reluctance motor power converter has a main switch short-circuit fault
  • the switched reluctance motor power converter has a main switch open circuit fault.
  • the object of the invention is achieved.
  • the switch reluctance motor power converter main switch short circuit, open circuit fault diagnosis method, without adding hardware, fault diagnosis and positioning accuracy rate of 100%, has good engineering application value.
  • FIG. 1 is a topological structural view of a main circuit of a three-phase two-switching switched reluctance motor power converter of the present invention
  • FIG. 2 is a waveform diagram of phase currents of a three-phase two-switching switched reluctance motor power converter without a main switch failure;
  • Figure 3 is a graph showing the integral value of the phase current in one cycle over the entire rotational speed range of the present invention
  • FIG. 4 is a waveform diagram of phase currents of a main-switch short-circuit fault of a three-phase two-switching switched reluctance motor power converter according to the present invention
  • FIG. 5 is a waveform diagram of phase currents of a main-switch open-circuit fault of a three-phase two-switched switched reluctance motor power converter according to the present invention
  • FIG. 6 is a topological structural view of a main circuit of a three-phase two-winding switched reluctance motor power converter of the present invention.
  • Embodiment 1 As shown in FIG. 1 , it is a main circuit of a three-phase two-switching switched reluctance motor power converter, and each phase of the three-phase dual-switch power converter has two main switches and two freewheeling diodes, A Phase, phase B, and phase C are connected in parallel on the positive "+” and negative "-" terminals of the power supply.
  • One end of the upper main switch S1 of the A phase is connected with the positive "+” of the power supply, the other end of the upper main switch S1 is connected with one end of the A phase winding, and one end of the lower main switch S2 is connected with the negative "-" of the power supply, and the lower main switch S2 is connected.
  • One end is connected to the other end of the A-phase winding, one end of the upper freewheeling diode VD1 is connected with the positive "+" of the power supply, the other end of the upper freewheeling diode VD1 is connected with the other end of the A-phase winding, and the lower end of the freewheeling diode VD2 is connected with the negative pole of the power supply.
  • the other end of the connected, lower freewheeling diode VD2 is connected to one end of the A phase winding.
  • the internal connection mode of the B phase and the C phase is the same as that of the internal phase A phase, and is omitted.
  • the short-circuit and open-circuit fault diagnosis methods for the main switch of the switched reluctance motor power converter are as follows:
  • n is the rotational speed of the motor
  • T is the period of change of the phase current
  • t is the time
  • the current phase A current i(t) transient value of the three-phase two-switching switched reluctance motor power converter is detected, and the integral value of the phase A current in the current state in one cycle is obtained by the integral operation:
  • n is the rotational speed of the motor
  • T is the period of change of the phase current
  • t is the time
  • phase current waveform is shown in Figure 2.
  • n is the rotational speed of the motor
  • T is the period of change of the phase current
  • t is the time
  • the current B-phase current i(t) transient value of the three-phase two-switching switched reluctance motor power converter is detected, and the integral value of the B-phase current in the current state in one cycle is obtained by the integral operation:
  • n is the rotational speed of the motor
  • T is the period of change of the phase current
  • t is the time
  • the phase current waveform is shown in Figure 2.
  • n is the rotational speed of the motor
  • T is the period of change of the phase current
  • t is the time
  • the current C-phase current i(t) transient value of the three-phase two-switching switched reluctance motor power converter is detected, and the integral value of the C-phase current in the current state in one cycle is obtained by the integral operation:
  • n is the rotational speed of the motor
  • T is the period of change of the phase current
  • t is the time
  • the two-phase and two-phase of the switched reluctance motor power converter have the main switch short circuit, the fault detection when the open circuit fault occurs, the fault type identification, and the fault phase localization method are similar to the above.
  • the integral value S n of the phase current in the current state and the integral value S nO of the phase current in one cycle in the non-fault state are determined.
  • Embodiment 2 As shown in FIG. 6 , it is a main circuit of a three-phase double-winding switched reluctance motor power converter.
  • Each phase of the three-phase dual-winding power converter has a main switch and a freewheeling diode, phase A. , phase B, phase C are connected in parallel with the positive "+" and negative "-" of the power supply.
  • the three-phase two-winding power converter has two windings in each phase, and the main winding and the secondary winding are wound in two lines and reversed at the same name.
  • One end of the main switch S1 of the A phase is connected to the negative terminal "-" of the power supply, the other end of the main switch S1 is connected to one end of the main winding of the A phase, and the other end of the main winding of the A phase is connected to the positive "+" of the power supply, and the end of the freewheeling diode VD1 is The negative pole of the power supply is connected with "-", the other end of the freewheeling diode VD1 is connected to one end of the A-phase secondary winding, and the other end of the A-phase secondary winding is connected to the positive "+" of the power supply.
  • the internal connection mode of the B phase and the C phase is the same as that of the internal phase A phase, and is omitted.
  • the short-circuit and open-circuit fault diagnosis methods for the main switch of the switched reluctance motor power converter are as follows:
  • n is the rotational speed of the motor
  • T is the period of change of the phase current
  • t is the time
  • the current phase A current i(t) transient value of the three-phase double-winding switched reluctance motor power converter is detected, and the integral value of the phase A current in the current state in one cycle is obtained by the integral operation:
  • n is the rotational speed of the motor
  • T is the period of change of the phase current
  • t is the time
  • phase current waveform is shown in Figure 2.
  • n is the rotational speed of the motor
  • T is the period of change of the phase current
  • t is the time
  • the current B-phase current i(t) transient value of the three-phase double-winding switched reluctance motor power converter is detected, and the integral value of the B-phase current in the current state in one cycle is obtained by the integral operation:
  • n is the rotational speed of the motor
  • T is the period of change of the phase current
  • t is the time
  • n is the speed of the motor
  • T is the period of change of the phase current
  • t is the time
  • the current C-phase current i(t) transient value of the three-phase double-winding switched reluctance motor power converter is detected, and the integral value of the C-phase current in the current state in one cycle is obtained by the integral operation:
  • n is the rotational speed of the motor
  • T is the period of change of the phase current
  • t is the time
  • the two-winding switched reluctance motor power converter has two-phase and two-phase simultaneous main-switch short-circuit, fault detection when open-circuit fault, fault type identification, and fault phase localization method are similar to the above.
  • the integral value S n of the phase current in the current state and the integral value S nO of the phase current in one cycle in the non-fault state are determined.

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  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
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  • Control Of Electric Motors In General (AREA)

Abstract

一种开关磁阻电机功率变换器故障诊断相电流积分方法，通过检测开关磁阻电机功率变换器无故障状态下的相电流iO(t)瞬态值和当前相电流i(t)瞬态值，由积分运算求得无故障状态下的相电流在一个周期内的积分值SnO和当前状态下的相电流在一个周期内的积分值Sn，比值En＝Sn/SnO作为故障特征量，诊断出开关磁阻电机功率变换器主开关是否有短路、开路故障；适用于多种相数、多种拓扑结构的开关磁阻电机功率变换器，故障定位准，具有良好的工程应用价值。

Description

一种开关磁阻电机功率变换器故障诊断相电流积分方法 技术领域
本发明涉及一种开关磁阻电机功率变换器故障诊断相电流积分方法，尤其是一种适用于多种相数、多种拓扑结构的开关磁阻电机的功率变换器主开关短路、开路故障诊断方法。
背景技术
开关磁阻电机功率变换器故障检测与诊断主要是基于系统模型的定性分析方法，它是通过建模仿真或实验的方法，分析对比系统正常状态与故障状态下观测量的变化信息，提取残差或故障特征，以期利用故障决策算法实现系统的故障分离，对于能够精确建立数学模型的系统，这类方法能够深入研究系统故障机理，不仅有利于已知故障的特征分析，对未出现过或经验不足的故障也可进行性能分析和诊断，所以得到广泛应用；开关磁阻电机具有不同于传统交直流电机的双凸极结构和非正弦供电特性，使得开关磁阻电机功率变换器的故障分离和故障特征提取与其他电机有明显的不同。基于系统模型的定性分析方法应用于开关磁阻电机功率变换器故障诊断，其难点在于开关磁阻电机系统精确的数学模型很难建立。不需要开关磁阻电机系统精确数学模型的故障诊断方法，是当前开关磁阻电机系统研究和技术开发的重要方向之一。
发明内容
本发明的目的是针对已有技术中存在问题，提供一种开关磁阻电机功率变换器主开关短路、开路故障诊断的相电流积分方法。
本发明的开关磁阻电机功率变换器主开关短路故障诊断方法：
检测开关磁阻电机功率变换器无故障状态下的相电流iO(t)瞬态值，由积分运算求得无故障状态下的相电流在一个周期内的积分值：
Figure PCTCN2015083046-appb-000001
其中：n为电机的转速，T为相电流的变化周期，t为时间；
检测开关磁阻电机功率变换器的当前相电流i(t)瞬态值，由积分运算求得当前状态下的相电流在一个周期内的积分值：
Figure PCTCN2015083046-appb-000002
其中：n为电机的转速，T为相电流的变化周期，t为时间；
当前状态下的相电流在一个周期内的积分值Sn与无故障状态下的相电流在一个周期内的积分 值SnO的比值En＝Sn/SnO作为故障特征量，来诊断开关磁阻电机功率变换器主开关是否有短路、开路故障；
当比值En＝Sn/SnO在整个转速范围内的曲线值均是1，则开关磁阻电机功率变换器没有发生主开关故障；
当比值En＝Sn/SnO在整个转速范围内的曲线值大于1.2，则开关磁阻电机功率变换器发生主开关短路故障；
当比值En＝Sn/SnO在整个转速范围内的曲线值为0，则开关磁阻电机功率变换器发生主开关开路故障。
有益效果：本发明对多种相数、多种拓扑结构的开关磁阻电机功率变换器主开关短路、开路故障诊断适用。检测开关磁阻电机功率变换器无故障状态下的相电流iO(t)瞬态值和当前相电流i(t)瞬态值，计算出当前状态下的相电流在一个周期内的积分值Sn与无故障状态下的相电流在一个周期内的积分值SnO的比值En＝Sn/SnO作为故障特征量，诊断出开关磁阻电机功率变换器主开关短路、开路故障，达到本发明的目的。该开关磁阻电机功率变换器主开关短路、开路故障诊断方法，不增加硬件，故障诊断定位准确率达100％，具有良好的工程应用价值。
附图说明
图1是本发明的三相双开关式开关磁阻电机功率变换器主电路的拓扑结构图；
图2是本发明的三相双开关式开关磁阻电机功率变换器没有发生主开关故障的相电流波形图；
图3是本发明的整个转速范围内相电流在一个周期内的积分值曲线；
图4是本发明的三相双开关式开关磁阻电机功率变换器发生主开关短路故障的相电流波形图；
图5是本发明的三相双开关式开关磁阻电机功率变换器发生主开关开路故障的相电流波形图；
图6是本发明的三相双绕组式开关磁阻电机功率变换器主电路的拓扑结构图。
具体实施方式
下面结合附图对本发明的实施例作进一步的描述：
实施例一：如图1所示，为三相双开关式开关磁阻电机功率变换器主电路，三相双开关功率变换器的每相均有两只主开关和两只续流二极管，A相、B相、C相并联在供电电源正极“+”和负极“-”上。其中A相的上主开关S1一端与供电电源正极“+”相连、上主开关S1另一端与A相绕组一端相连，下主开关S2一端与供电电源负极“-”相连、下主开关S2另一端与A相绕组另一端相连，上续流二极管VD1一端与供电电源正极“+”相连、上续流二极管VD1另一端与A相绕组另一端相连，下续流二极管VD2一端与供电电源负极“-”相连、下续流二极管VD2另一端与A相绕组一端相连。B相、C相内部连接方式与A相内部连接方式相同，略。开关磁阻电机功率变换器主开关短路、开路故障诊断方法如下：
首先检测三相双开关式开关磁阻电机功率变换器无故障状态下的A相电流iO(t)瞬态值，由积 分运算求得无故障状态下的A相电流在一个周期内的积分值：
Figure PCTCN2015083046-appb-000003
其中：n为电机的转速，T为相电流的变化周期，t为时间；
检测三相双开关式开关磁阻电机功率变换器的当前A相电流i(t)瞬态值，由积分运算求得当前状态下的A相电流在一个周期内的积分值：
Figure PCTCN2015083046-appb-000004
其中：n为电机的转速，T为相电流的变化周期，t为时间；
将当前状态下的A相电流在一个周期内的积分值Sn与无故障状态下的A相电流在一个周期内的积分值SnO的比值En＝Sn/SnO作为故障特征量，来诊断开关磁阻电机功率变换器A相主开关是否有短路、开路故障；
相电流波形如图2所示，当比值En＝Sn/SnO在整个转速范围内的曲线值均是1，如图3所示，则开关磁阻电机功率变换器没有发生A相主开关故障；
如图3所示，当比值En＝Sn/SnO在整个转速范围内的曲线值大于1.2，则开关磁阻电机功率变换器发生A相主开关短路故障，其相电流波形如图4所示；
如图3所示，当比值En＝Sn/SnO在整个转速范围内的曲线值为0，则开关磁阻电机功率变换器发生A相主开关开路故障，其相电流波形如图5所示。
再检测三相双开关式开关磁阻电机功率变换器无故障状态下的B相电流iO(t)瞬态值，由积分运算求得无故障状态下的B相电流在一个周期内的积分值：
Figure PCTCN2015083046-appb-000005
其中：n为电机的转速，T为相电流的变化周期，t为时间；
检测三相双开关式开关磁阻电机功率变换器的当前B相电流i(t)瞬态值，由积分运算求得当前状态下的B相电流在一个周期内的积分值：
Figure PCTCN2015083046-appb-000006
其中：n为电机的转速，T为相电流的变化周期，t为时间；
将当前状态下的B相电流在一个周期内的积分值Sn与无故障状态下的B相电流在一个周期内的积分值SnO的比值En＝Sn/SnO作为故障特征量，来诊断开关磁阻电机功率变换器B相主开关是否有短路、开路故障；相电流波形如图2所示，当比值En＝Sn/SnO在整个转速范围内的曲线值均 是1，如图3所示，则开关磁阻电机功率变换器B相没有发生主开关故障；如图3所示，当比值En＝Sn/SnO在整个转速范围内的曲线值大于1.2，则开关磁阻电机功率变换器发生B相主开关短路故障，其相电流波形如图4所示；如图3所示，当比值En＝Sn/SnO在整个转速范围内的曲线值为0，则开关磁阻电机功率变换器发生B相主开关开路故障，其相电流波形如图5所示。
最后检测三相双开关式开关磁阻电机功率变换器无故障状态下的C相电流iO(t)瞬态值，由积分运算求得无故障状态下的C相电流在一个周期内的积分值：
Figure PCTCN2015083046-appb-000007
其中：n为电机的转速，T为相电流的变化周期，t为时间；
检测三相双开关式开关磁阻电机功率变换器的当前C相电流i(t)瞬态值，由积分运算求得当前状态下的C相电流在一个周期内的积分值：
Figure PCTCN2015083046-appb-000008
其中n为电机的转速，T为相电流的变化周期，t为时间；
将当前状态下的C相电流在一个周期内的积分值Sn与无故障状态下的C相电流在一个周期内的积分值SnO的比值En＝Sn/SnO作为故障特征量，来诊断开关磁阻电机功率变换器C相主开关是否有短路、开路故障；
相电流波形如图2所示，当比值En＝Sn/SnO在整个转速范围内的曲线值均是1，如图3所示，则开关磁阻电机功率变换器C相没有发生主开关故障；
如图3所示，当比值En＝Sn/SnO在整个转速范围内的曲线值大于1.2，则开关磁阻电机功率变换器发生C相主开关短路故障，其相电流波形如图4所示；
如图3所示，当比值En＝Sn/SnO在整个转速范围内的曲线值为0，则开关磁阻电机功率变换器发生C相主开关开路故障，其相电流波形如图5所示。
该开关磁阻电机功率变换器两相及两相以上同时出现主开关短路、开路故障时的故障检测、故障种类辨别、故障相定位方法与上述类似。
通过对A、B、C三相分别检测相电流，判断其当前状态下的相电流在一个周期内的积分值Sn与无故障状态下的该相电流在一个周期内的积分值SnO的比值En＝Sn/SnO在整个转速范围内的曲线值等于1、大于1.2或等于0，从而实现主开关短路、开路故障相的定位。
实施例二：如图6所示，为三相双绕组式开关磁阻电机功率变换器主电路，三相双绕组功率变换器的每相均有一只主开关和一只续流二极管，A相、B相、C相并联在供电电源正极“+”和负极“-” 上；三相双绕组功率变换器的每相均有两个绕组，主、副两个绕组双线并绕、同名端反接。A相的主开关S1一端与供电电源负极“-”相连、主开关S1另一端与A相主绕组一端相连，A相主绕组另一端与供电电源正极“+”相连，续流二极管VD1一端与供电电源负极“-”相连，续流二极管VD1另一端与A相副绕组一端相连，A相副绕组另一端与供电电源正极“+”相连。
B相、C相内部连接方式与A相内部连接方式相同，略。开关磁阻电机功率变换器主开关短路、开路故障诊断方法如下：
首先检测三相双绕组式开关磁阻电机功率变换器无故障状态下的A相电流iO(t)瞬态值，由积分运算求得无故障状态下的A相电流在一个周期内的积分值：
Figure PCTCN2015083046-appb-000009
其中：n为电机的转速，T为相电流的变化周期，t为时间；
检测三相双绕组式开关磁阻电机功率变换器的当前A相电流i(t)瞬态值，由积分运算求得当前状态下的A相电流在一个周期内的积分值：
Figure PCTCN2015083046-appb-000010
其中：n为电机的转速，T为相电流的变化周期，t为时间；
将当前状态下的A相电流在一个周期内的积分值Sn与无故障状态下的A相电流在一个周期内的积分值SnO的比值En＝Sn/SnO作为故障特征量，来诊断开关磁阻电机功率变换器A相主开关是否有短路、开路故障；
相电流波形如图2所示，当比值En＝Sn/SnO在整个转速范围内的曲线值均是1，如图3所示，则开关磁阻电机功率变换器没有发生A相主开关故障；
如图3所示，当比值En＝Sn/SnO在整个转速范围内的曲线值大于1.2，则开关磁阻电机功率变换器发生A相主开关短路故障，其相电流波形如图4所示；
如图3所示，当比值En＝Sn/SnO在整个转速范围内的曲线值为0，则开关磁阻电机功率变换器发生A相主开关开路故障，其相电流波形如图5所示。
再检测三相双绕组式开关磁阻电机功率变换器无故障状态下的B相电流iO(t)瞬态值，由积分运算求得无故障状态下的B相电流在一个周期内的积分值：
Figure PCTCN2015083046-appb-000011
其中：n为电机的转速，T为相电流的变化周期，t为时间；
检测三相双绕组式开关磁阻电机功率变换器的当前B相电流i(t)瞬态值，由积分运算求得当前状态下的B相电流在一个周期内的积分值：
Figure PCTCN2015083046-appb-000012
其中：n为电机的转速，T为相电流的变化周期，t为时间；
将当前状态下的B相电流在一个周期内的积分值Sn与无故障状态下的B相电流在一个周期内的积分值SnO的比值En＝Sn/SnO作为故障特征量，来诊断开关磁阻电机功率变换器B相主开关是否有短路、开路故障；
相电流波形如图2所示，当比值En＝Sn/SnO在整个转速范围内的曲线值均是1，如图3所示，则开关磁阻电机功率变换器B相没有发生主开关故障；
如图3所示，当比值En＝Sn/SnO在整个转速范围内的曲线值大于1.2，则开关磁阻电机功率变换器发生B相主开关短路故障，其相电流波形如图4所示；
如图3所示，当比值En＝Sn/SnO在整个转速范围内的曲线值为0，则开关磁阻电机功率变换器发生B相主开关开路故障，其相电流波形如图5所示。
最后检测三相双绕组式开关磁阻电机功率变换器无故障状态下的C相电流iO(t)瞬态值，由积分运算求得无故障状态下的C相电流在一个周期内的积分值：
Figure PCTCN2015083046-appb-000013
其中：n为电机的转速，T为相电流的变化周期，t为时间。
检测三相双绕组式开关磁阻电机功率变换器的当前C相电流i(t)瞬态值，由积分运算求得当前状态下的C相电流在一个周期内的积分值：
Figure PCTCN2015083046-appb-000014
其中：n为电机的转速，T为相电流的变化周期，t为时间；
将当前状态下的C相电流在一个周期内的积分值Sn与无故障状态下的C相电流在一个周期内的积分值SnO的比值En＝Sn/SnO作为故障特征量，来诊断开关磁阻电机功率变换器C相主开关是否有短路、开路故障；
相电流波形如图2所示，当比值En＝Sn/SnO在整个转速范围内的曲线值均是1，如图3所示，则开关磁阻电机功率变换器C相没有发生主开关故障；
如图3所示，当比值En＝Sn/SnO在整个转速范围内的曲线值大于1.2，则开关磁阻电机功率变换器发生C相主开关短路故障，其相电流波形如图4所示；
如图3所示，当比值En＝Sn/SnO在整个转速范围内的曲线值为0，则开关磁阻电机功率变换 器发生C相主开关开路故障，其相电流波形如图5所示。
该双绕组式开关磁阻电机功率变换器两相及两相以上同时出现主开关短路、开路故障时的故障检测、故障种类辨别、故障相定位方法与上述类似。
通过对A、B、C三相分别检测相电流，判断其当前状态下的相电流在一个周期内的积分值Sn与无故障状态下的该相电流在一个周期内的积分值SnO的比值En＝Sn/SnO在整个转速范围内的曲线值等于1、大于1.2或等于0，从而实现主开关短路、开路故障相的定位。

Claims (1)

  1. 一种开关磁阻电机功率变换器故障诊断相电流积分方法，其特征在于：
    检测开关磁阻电机功率变换器无故障状态下的相电流iO(t)瞬态值，由积分运算求得无故障状态下的相电流在一个周期内的积分值：
    Figure PCTCN2015083046-appb-100001
    其中：n为电机的转速，T为相电流的变化周期，t为时间；
    检测开关磁阻电机功率变换器的当前相电流i(t)瞬态值，由积分运算求得当前状态下的相电流在一个周期内的积分值：
    Figure PCTCN2015083046-appb-100002
    其中：n为电机的转速，T为相电流的变化周期，t为时间；
    当前状态下的相电流在一个周期内的积分值Sn与无故障状态下的相电流在一个周期内的积分值SnO的比值En＝Sn/SnO作为故障特征量，来诊断开关磁阻电机功率变换器主开关是否有短路、开路故障；
    当比值En＝Sn/SnO在整个转速范围内的曲线值均是1，则开关磁阻电机功率变换器没有发生主开关故障；
    当比值En＝Sn/SnO在整个转速范围内的曲线值大于1.2，则开关磁阻电机功率变换器发生主开关短路故障；
    当比值En＝Sn/SnO在整个转速范围内的曲线值为0，则开关磁阻电机功率变换器发生主开关开路故障；
    通过检测相电流，判断当前状态下的相电流在一个周期内的积分值Sn与无故障状态下的该相电流在一个周期内的积分值SnO的比值En＝Sn/SnO在整个转速范围内的曲线值等于1、大于1.2或等于0，从而实现主开关短路、开路故障相的定位。
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Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103941142B (zh) * 2014-05-07 2016-05-18 中国矿业大学 一种开关磁阻电机功率变换器故障诊断相电流积分方法
CN105182234B (zh) * 2015-08-31 2018-07-17 湘潭大学 一种它励模式下开关磁阻发电机开关器件故障的诊断方法
CN106383289B (zh) * 2016-09-06 2019-03-12 中国矿业大学 开关磁阻电机功率变换器相关性分析故障诊断方法
CN106908722B (zh) * 2016-12-12 2019-04-05 大连理工大学 一种开关磁阻电机的相电流故障的诊断方法
CN108072804B (zh) * 2017-05-03 2020-09-22 陈昊 一种开关磁阻电机功率变换器故障诊断方法
CN108572297B (zh) * 2018-04-11 2020-05-08 中国矿业大学 开关磁阻电机功率变换器母线特征电流故障诊断方法
CN108919120A (zh) * 2018-07-20 2018-11-30 南京怡咖电气科技有限公司 一种能源互联网功率变换器故障诊断方法
CN109188177B (zh) * 2018-10-01 2023-12-19 江苏国传电气有限公司 一种大功率npc三电平逆变器短路电流在线检测系统
CN109444739B (zh) * 2018-10-22 2020-08-28 中国矿业大学 一种开关磁阻电机系统功率变换器的可靠性评估方法
CN109557410B (zh) * 2019-01-16 2020-08-28 中国矿业大学 智能网联电动车开关磁阻电机功率变换器的故障诊断方法
CN109738778B (zh) * 2019-01-29 2021-08-24 中南大学 逆变器开路诊断方法、装置、终端设备及计算机可读介质
CN111781436B (zh) * 2019-04-04 2021-07-13 株洲中车时代电气股份有限公司 换流器的故障检测装置、故障检测方法和变流系统
CN110988677B (zh) * 2019-11-25 2021-11-09 北京昊鹏智能技术有限公司 直流电机及其驱动的机械设备的故障检测方法和装置
CN111404408B (zh) * 2020-01-07 2023-05-12 中国矿业大学 开关磁阻电机容错功率变换器
CN114429027B (zh) * 2020-10-29 2025-09-09 比亚迪半导体股份有限公司 电流积分误差分析方法、装置、存储介质和电子设备
CN113030785B (zh) * 2021-03-17 2023-08-29 青岛大学 一种电机系统开路故障检测方法
KR102801256B1 (ko) * 2023-02-27 2025-04-25 경남대학교 산학협력단 비대칭 6상 영구자석 동기 전동기의 스위치 고장 검출방법

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5493195A (en) * 1994-09-29 1996-02-20 Sundstrand Corporation Switched reluctance starter/generator control system allowing operation with regenerative loads and electrical system employing same
JP2004289882A (ja) * 2003-03-19 2004-10-14 Daikin Ind Ltd インバータの故障検出方法
CN101551441A (zh) * 2009-05-15 2009-10-07 中国矿业大学 一种开关磁阻电机功率变换器故障诊断方法
CN101666858A (zh) * 2009-09-09 2010-03-10 中国矿业大学 开关磁阻电机双主开关功率变换器主开关故障诊断方法
CN101839957A (zh) * 2010-05-08 2010-09-22 中国矿业大学 一种开关磁阻电机功率变换器主电路故障诊断方法
CN102081129A (zh) * 2010-11-10 2011-06-01 中国矿业大学 一种开关磁阻电机定子绕组短路故障诊断方法
CN103105559A (zh) * 2013-02-05 2013-05-15 中国矿业大学 开关磁阻电机双开关功率变换器故障节点能量诊断方法
CN103454550A (zh) * 2013-09-23 2013-12-18 中国矿业大学 开关磁阻电机功率变换器故障细节系数标准差诊断方法
CN103675589A (zh) * 2013-11-19 2014-03-26 中国矿业大学 开关磁阻电机功率变换器短路故障母线电流诊断方法
CN103941142A (zh) * 2014-05-07 2014-07-23 中国矿业大学 一种开关磁阻电机功率变换器故障诊断相电流积分方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5289107A (en) * 1992-03-30 1994-02-22 General Electric Company Switched reluctance generator system with fault recovery capability
US5424595A (en) * 1993-05-04 1995-06-13 General Electric Company Integrated magnetic bearing/switched reluctance machine
US5786681A (en) * 1996-11-15 1998-07-28 Dana Corporation Active phase coil inductance sensing
GB9714696D0 (en) * 1997-07-11 1997-09-17 Switched Reluctance Drives Ltd Exercise apparatus
US6636823B1 (en) * 1999-09-30 2003-10-21 Rockwell Automation Technologies, Inc. Method and apparatus for motor fault diagnosis
JP4438833B2 (ja) * 2007-07-04 2010-03-24 トヨタ自動車株式会社 電力変換装置の異常検出装置および異常検出方法
JP4805396B2 (ja) * 2010-03-31 2011-11-02 ファナック株式会社 モータ駆動装置
CN102033188B (zh) * 2010-11-25 2013-01-02 中国电器科学研究院 移相全桥变换器断路故障实时诊断方法
CN102013671A (zh) * 2010-12-13 2011-04-13 山东大学 暂态行波幅值积分式超高速母线保护系统及其方法
CN102832601B (zh) * 2012-08-29 2015-04-15 义马煤业集团股份有限公司 基于相电流分时比值的煤矿高压漏电保护方法
CN103744022A (zh) * 2013-12-25 2014-04-23 河海大学 一种双馈风力发电机转子绕组故障的检测方法

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5493195A (en) * 1994-09-29 1996-02-20 Sundstrand Corporation Switched reluctance starter/generator control system allowing operation with regenerative loads and electrical system employing same
JP2004289882A (ja) * 2003-03-19 2004-10-14 Daikin Ind Ltd インバータの故障検出方法
CN101551441A (zh) * 2009-05-15 2009-10-07 中国矿业大学 一种开关磁阻电机功率变换器故障诊断方法
CN101666858A (zh) * 2009-09-09 2010-03-10 中国矿业大学 开关磁阻电机双主开关功率变换器主开关故障诊断方法
CN101839957A (zh) * 2010-05-08 2010-09-22 中国矿业大学 一种开关磁阻电机功率变换器主电路故障诊断方法
CN102081129A (zh) * 2010-11-10 2011-06-01 中国矿业大学 一种开关磁阻电机定子绕组短路故障诊断方法
CN103105559A (zh) * 2013-02-05 2013-05-15 中国矿业大学 开关磁阻电机双开关功率变换器故障节点能量诊断方法
CN103454550A (zh) * 2013-09-23 2013-12-18 中国矿业大学 开关磁阻电机功率变换器故障细节系数标准差诊断方法
CN103675589A (zh) * 2013-11-19 2014-03-26 中国矿业大学 开关磁阻电机功率变换器短路故障母线电流诊断方法
CN103941142A (zh) * 2014-05-07 2014-07-23 中国矿业大学 一种开关磁阻电机功率变换器故障诊断相电流积分方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LU , SHENGLI ET AL.: "Fault Diagnosis and Fault-Tolerant Control Strategy for Power Converter of Switched Reluctance Motor", TRANSACTIONS OF CHINA ELECTROTECHNICAL SOCIETY, vol. 24, no. 11, 26 November 2009 (2009-11-26), pages 199 - 205, ISSN: 1000-6753 *

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