CN102798819B - High-voltage motor type test system - Google Patents
High-voltage motor type test system Download PDFInfo
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- CN102798819B CN102798819B CN201210276994.0A CN201210276994A CN102798819B CN 102798819 B CN102798819 B CN 102798819B CN 201210276994 A CN201210276994 A CN 201210276994A CN 102798819 B CN102798819 B CN 102798819B
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Abstract
The invention discloses a high-voltage motor type test system. The system comprises two high-voltage incoming wire power cabinets, two phase-shifting transformer cabinets, two high-voltage frequency conversion power cabinets, a high-voltage parallel cabinet, a first high-voltage electric current measurement cabinet, two high-voltage connection cabinets, a first analytical device, a tested high-voltage motor and an assistant test load. A first high-voltage incoming wire power cabinet, a first phase-shifting transformer cabinet, a first high-voltage frequency conversion power cabinet, the first high-voltage electric current measurement cabinet, a first high-voltage connection cabinet and the tested high-voltage motor are connected in series to form a first test circuit. A second high-voltage incoming wire power cabinet, a second phase-shifting transformer cabinet, a second high-voltage frequency conversion power cabinet, a second high-voltage connection cabinet and the assistant test load are connected in series to form a second test circuit. An end of the high-voltage parallel cabinet is connected with an output end of the first frequency conversion power cabinet, and the other end of the high-voltage parallel cabinet is connected with an output end of the second frequency conversion power cabinet. The first analytical device is connected with the first high-voltage electric current measurement cabinet and the first high-voltage connection cabinet.
Description
Technical field
The present invention relates to motor test field, particularly relate to high-voltage motor type test system.
Background technology
The relevant regulations of foundation GB/T1029 and 1032 international standards, high-voltage motor manufacturing firm, needs to carry out type approval test to the motor kind of the new model that it is developed, for verifying whether the technical parameter of new product matches with design theory value.
At present, the pilot system of the pilot system employing high-low-high power supply that high-voltage motor is traditional, as shown in Figure 1, specifically comprises:
Low pressure incoming power cabinet AR101, controls for pilot system total output electric power incoming line and provides the defencive functions such as overcurrent, overvoltage, ground connection and phase shortage.The incoming power of input 50Hz/400V, exports 50Hz/400V ac signal.
Rectifier transformer TM101, for the 400V ac signal exported from low pressure incoming power cabinet AR101 is converted into 690V input power, isolates pilot system power supply and electrical network simultaneously, guarantees not disturb power plant in variable-frequency power sources operational process.
Rectification unit AR102,690V AC power for being exported by rectifier transformer TM101 converts 1000VDC DC voltage to, be divided into two-way to export, a road provides operating voltage to the inversion unit cabinet 104-105 of rear end, and another road provides operating voltage to the inversion unit cabinet 106-107 of rear end
Energy-storage units AR103, the fluctuation of DC bus-bar voltage when working for suppressing inversion unit cabinet 104-107.
Inversion unit cabinet AR104-105, becomes frequency 0-100Hz and the adjustable alternating voltage of voltage 0-690V for the road 1000VDC DC voltage conversion exported by rectification unit AR102.
Inversion unit cabinet AR106-107, another road 1000VDC DC voltage conversion for being exported by rectification unit AR102 becomes frequency 0-100Hz and the adjustable alternating voltage of voltage 0-690V.
Wave filter cabinet AR108, carries out shaping filter for PWM (PulseWidth Modulation) modulating wave exported by inversion unit cabinet AR104-105, and reduces output harmonic wave content, makes waveform quality meet requirement in GB.
Wave filter cabinet AR109, carries out shaping filter for the PWM ripple exported by inversion unit cabinet AR106-107, and reduces output harmonic wave content, makes waveform quality meet requirement in GB.
Moving electric power output cabinet AR110-111, exports feed for controlling inverter voltage.
Intermediate transformer TM102, converts frequency 5-60Hz and the continuously adjustable alternating voltage of voltage 0-10kV to for the frequency 0-100Hz that exported by moving electric power output cabinet AR110 and the adjustable alternating voltage of voltage 0-690V.
Intermediate transformer TM103, converts frequency 5-60Hz and the continuously adjustable alternating voltage of voltage 0-10kV to for the frequency 0-100Hz that exported by moving electric power output cabinet AR111 and the adjustable alternating voltage of voltage 0-690V.
High-voltage current measurement cabinet AR112, for gathering and measuring the current signal of tested high-voltage motor, and sends to control analysis device A K101, so that the current signal of control analysis device A K101 to tested high-voltage motor is analyzed.
High-voltage parallel cabinet AR113, for controlling two test loop parallel runnings.
High-voltage connection cabinet AR114, for the power delivery extremely tested high-voltage motor M101 that intermediate transformer TM102 is exported, and gather and measure the voltage signal of tested high-voltage motor, and send to control analysis device A K101, so that the voltage signal of control analysis device A K101 to tested high-voltage motor is analyzed.
High-voltage connection cabinet AR115, tries high-voltage motor or fans load M102 for the power delivery exported by intermediate transformer TM103 to accompanying.
Control analysis device A K101, the output state control signal sent for the input state control signal and rectification unit AR102 that receive the transmission of low pressure incoming power cabinet is analyzed, frequency change control signal is sent to inversion unit cabinet 104-107 according to analysis result, and receiving the current signal of tested high-voltage motor and voltage signal is analyzed, described frequency change control signal changes out-put supply signal for controlling inversion unit cabinet 104-107.
But carrying out in process of the present invention, the present inventor finds that using the pilot system of above-mentioned high-low-high power supply to carry out type approval test to high-voltage motor in prior art has following shortcoming at least:
First, inversion unit AR104-107 output waveform is PWM ripple, do not meet the technical requirement of GB/T1032 about high-voltage motor type test power supply, wave filter cabinet AR108-109 must be configured, although output waveform can meet the requirement of international standard after filtering, do not reach desirable sinusoidal wave quality requirements;
Secondly, adopt intermediate transformer TM102-103 low-tension supply to be raised, the output frequency of voltage is restricted, and can only export the alternating voltage of 5-60Hz, can not output rated voltage when low frequency.
Summary of the invention
In view of this, the invention provides a kind of high-voltage motor type test system, the power supply of output does not need to configure wave filter, and output AC power source waveform meets international standard.
A kind of high-voltage motor type test system, described system comprises:
Two high pressure incoming power cabinets, two phase-shifting transformer cabinets, two high-voltage variable frequency power source cabinets, a high-voltage parallel cabinet, a first high-voltage current measurement cabinet, two high-voltage connection cabinets, first analytical equipment, a tested high-voltage motor and one accompany examination load, containing at least one high-pressure frequency-conversion unit in each high-voltage variable frequency power source cabinet;
Described first high pressure incoming power cabinet, the first phase-shifting transformer cabinet, the first high-voltage variable frequency power source cabinet, the first high-voltage current measurement cabinet, the first high-voltage connection cabinet and tested high-voltage motor are composed in series the first test circuit successively;
Described second high-voltage power supply incoming line cabinet, the second phase-shifting transformer cabinet, the second high-voltage variable frequency power source cabinet, the second high-voltage connection cabinet and accompany examination load be composed in series the second test circuit successively;
Described high-voltage parallel cabinet one end is connected with the first variable-frequency power sources cabinet output terminal, and the other end is connected with the second variable-frequency power sources cabinet output terminal;
Described first analytical equipment is connected with the first high-voltage connection cabinet with the first high-voltage current measurement cabinet;
Described two high pressure incoming power cabinets, for control inputs incoming power, and provide defencive function to system;
Described two phase-shifting transformer cabinets, for inlet wire high-voltage power supply being converted to the input power of described high-voltage variable frequency power source cabinet, and isolate pilot system power supply and electrical network;
Described two high-voltage variable frequency power source cabinets, it be 0-100Hz and amplitude is adjustable alternating voltage in 0 to the rated voltage interval of tested high-voltage motor that the alternating voltage for being exported by phase-shifting transformer cabinet converts frequency to;
Described high-voltage parallel cabinet, for controlling the first test circuit and the second test circuit parallel running;
Described first high-voltage current measurement cabinet, exports the first high-voltage connection cabinet to for the adjustable alternating voltage exported by the first high-voltage variable frequency power source cabinet, gathers and measures the current signal of tested high-voltage motor;
Described first high-voltage connection cabinet, exports tested high-voltage motor to for the adjustable alternating voltage exported by the first high-voltage current measurement cabinet, gathers and measures the voltage signal of tested high-voltage motor;
Described second high-voltage connection cabinet, the adjustable alternating voltage for being exported by the second high-voltage variable frequency power source cabinet exports to accompanies examination load;
Described first analytical equipment, for the first high-voltage current measurement cabinet and the first high-voltage connection cabinet collection and the current signal of the tested motor of high pressure measured and voltage signal analyze.
Preferably, described system comprises further:
A second high-voltage current measurement cabinet and second analytical equipment;
Described second high-voltage current measurement cabinet one end is connected with the output terminal of the second high-voltage variable frequency power source cabinet, and the other end is connected with the second high-voltage connection cabinet;
Described second analytical equipment is connected with the second high-voltage connection cabinet with the second high-voltage current measurement cabinet;
Described second high-voltage current measurement cabinet, exports the second high-voltage connection cabinet to for the adjustable alternating voltage exported by the second high-voltage variable frequency power source cabinet, gathers and measures the current signal of accompanying examination load;
Described second high-voltage connection cabinet, is further used for gathering and measures the voltage signal of accompanying examination load;
Described second analytical equipment, for the second high-voltage current measurement cabinet and the second high-voltage connection cabinet collection and accompany the examination current signal of load and the voltage signal measured analyze.
Preferably,
Described second analytical equipment and described first analytical equipment are same analytical equipment.
Preferably, described system comprises further:
An opertaing device, described opertaing device is connected with the second high-voltage variable frequency power source cabinet with the first high-voltage variable frequency power source cabinet;
Described opertaing device, during for containing two or more high-pressure frequency-conversion unit in each high-voltage variable frequency power source cabinet, send frequency change control signal to the first high-voltage variable frequency power source cabinet and the second high-voltage variable frequency power source cabinet, described frequency change control signal is for controlling the first high-voltage variable frequency power source cabinet and the second high-voltage variable frequency power source cabinet exports different power supply signals.
Preferably, described system comprises further:
A short-circuit test cabinet, described short-circuit test cabinet is connected with the output terminal of the first high-voltage current measurement cabinet;
Described short-circuit test cabinet, tests for Synchronous High voltage generator three-phase steady-state short-circuit.
Preferably, described system comprises further:
A ring current cabinet, described ring current cabinet is connected with incoming power;
Described ring current cabinet, provides control loop operating power for high-voltage motor type test system.
According to foregoing, the present invention has following beneficial effect:
The power supply signal of two high-voltage variable frequency power source cabinet outputs meets the technical requirement of GB/T1032 about high-voltage motor type test power supply, without the need to additional configuration wave filter cabinet, the power supply signal voltage and current waveform exported, close to desirable key player on a team's ripple, meets the requirement of international standard;
Secondly, the power supply signal frequency that two high-voltage variable frequency power source cabinets export is adjustable in the interval range of 0-100Hz, and the output frequency of voltage is unrestricted, can output rated voltage in larger frequency range;
Again, two high-voltage variable frequency power source cabinets can realize V/F and be separated control, and high-voltage variable frequency power source cabinet can realize constant voltage frequency modulation in the frequency range of regulation, also can realize constant frequency pressure regulation in the output voltage range of regulation.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the system schematic of prior art mesohigh electrical type tests system;
Fig. 2 is the system schematic of a kind of high-voltage motor type test system that the embodiment of the present invention one discloses;
Fig. 3 is the system schematic of a kind of high-voltage motor type test system that the embodiment of the present invention two discloses.
Embodiment
The invention provides a kind of high-voltage motor type test system, use high-voltage variable frequency power source cabinet to export standard compliant AC power, be applicable to high-voltage motor type test.
System provided by the present invention comprises, two high pressure incoming power cabinets, two phase-shifting transformer cabinets, two high-voltage variable frequency power source cabinets, a high-voltage parallel cabinet, a first high-voltage current measurement cabinet, two high-voltage connection cabinets, first analytical equipment, a tested high-voltage motor and one accompany examination load; Described first high pressure incoming power cabinet, the first phase-shifting transformer cabinet, the first high-voltage variable frequency power source cabinet, the first high-voltage current measurement cabinet, the first high-voltage connection cabinet and tested high-voltage motor are composed in series the first test circuit successively; Described second high-voltage power supply incoming line cabinet, the second phase-shifting transformer cabinet, the second high-voltage variable frequency power source cabinet, the second high-voltage connection cabinet and accompany examination load be composed in series the second test circuit successively; Described high-voltage parallel cabinet one end is connected with the first variable-frequency power sources cabinet output terminal, and the other end is connected with the second variable-frequency power sources cabinet output terminal.
Below in conjunction with accompanying drawing, specific embodiment is described in detail.
Embodiment one
Refer to Fig. 2, it is the system schematic of a kind of high-voltage motor type test system that the embodiment of the present invention one discloses, and as shown in Figure 2, a kind of high-voltage motor type test system specifically comprises:
Two high pressure incoming power cabinet AR201-AR202, two phase-shifting transformer cabinet AR203-AR204, two high-voltage variable frequency power source cabinet AR205-AR206, a high-voltage parallel cabinet AR207, a first high-voltage current measurement cabinet AR208, two high-voltage connection cabinet AR209-AR210, the first analytical equipment AK201, a tested high-voltage motor M201 and accompany examination load M202.
Examination load M202 is accompanied to be the power-equipment that the tested high-voltage motor M201 of simulation drives in real work, e.g., compressor, water pump, disintegrating machine, stock-removing machine or Transport Machinery etc.
Described first high pressure incoming power cabinet AR201, the first phase-shifting transformer cabinet AR203, the first high-voltage variable frequency power source cabinet AR205, the first high-voltage current measurement cabinet AR208, the first high-voltage connection cabinet AR209 and tested high-voltage motor M201 are composed in series the first test circuit successively.
First test circuit initial end first high pressure incoming power cabinet AR201 one end is connected with electric power incoming line.
Described second high-voltage power supply incoming line cabinet AR202, the second phase-shifting transformer cabinet AR204, the second high-voltage variable frequency power source cabinet AR206, the second high-voltage connection cabinet AR210 and accompany examination load M202 to be composed in series the second test circuit successively.
Second test circuit initial end second high pressure incoming power cabinet AR202 one end is connected with electric power incoming line.
Described high-voltage parallel cabinet AR207 one end is connected with the first variable-frequency power sources cabinet AR205 output terminal, and the other end goes out to hold with the defeated AR206 of the second variable-frequency power sources cabinet and is connected.
Described first analytical equipment AK201 is connected with the first high-voltage connection cabinet AR209 with the first high-voltage current measurement cabinet AR208.
Described two high pressure incoming power cabinet AR201-AR202, for control inputs incoming power, and provide defencive function to system.
Described two phase-shifting transformer cabinet AR203-AR204, for inlet wire high-voltage power supply being converted to the input power of described two high-voltage variable frequency power source cabinet AR205-AR206, and isolate pilot system power supply and electrical network.
Two phase-shifting transformer cabinet AR203-AR204, guarantee the electrical network do not disturbed in variable-frequency power sources operational process in factory.
Described two high-voltage variable frequency power source cabinet AR205-AR206, it be 0-100Hz and amplitude is adjustable alternating voltage in 0 to the rated voltage interval of tested high-voltage motor that the alternating voltage for being exported by described two phase shift transformer cabinet AR203-AR204 converts frequency to.
High-voltage variable frequency power source cabinet output voltage is at more than 3kV, and output voltage grade has more than two kinds of specifications, and the voltage and current waveform of output is pure sine wave, and closely desirable communication power supply, meets international standard.
Realize V/F and be separated control, high-voltage variable frequency power source cabinet can realize constant voltage frequency modulation in the frequency range of regulation, also can realize constant frequency pressure regulation in the output voltage range of regulation.
Containing at least one high-pressure frequency-conversion unit in each high-voltage variable frequency power source cabinet.
Described high-voltage parallel cabinet AR207, for controlling the first test circuit and the second test circuit parallel running.
Described first high-voltage current measurement cabinet AR208, exports the first high-voltage connection cabinet AR209 to for the adjustable alternating voltage exported by described first high-voltage variable frequency power source cabinet AR205, gathers and measures the current signal of tested high-voltage motor M201.
Described first high-voltage connection cabinet AR209, exports tested high-voltage motor M201 to for the adjustable alternating voltage exported by described first high-voltage current measurement cabinet AR208, gathers and measures the voltage signal of tested high-voltage motor M201;
Described second high-voltage connection cabinet AR210, the adjustable alternating voltage for being exported by the second high-voltage variable frequency power source cabinet AR209 exports to accompanies examination load M202;
Described first analytical equipment AK201, for the first high-voltage current measurement cabinet and the first high-voltage connection cabinet collection and the current signal of tested high-voltage motor M201 measured and voltage signal analyze.
According to the first analytical equipment AK201, the tested current signal of high-voltage motor M201 and the analysis result of voltage signal are judged to the performance of tested high-voltage motor M201.
As shown in the above, the present invention has following beneficial effect:
The power supply signal of two high-voltage variable frequency power source cabinet outputs meets the technical requirement of GB/T 1032 about high-voltage motor type test power supply, without the need to additional configuration wave filter cabinet, the power supply signal voltage and current waveform exported, close to desirable key player on a team's ripple, meets the requirement of international standard;
Secondly, the power supply signal frequency that two high-voltage variable frequency power source cabinets export is adjustable in the interval range of 0-100Hz, and the output frequency of voltage is unrestricted, can output rated voltage in larger frequency range;
Again, two high-voltage variable frequency power source cabinets can realize V/F and be separated control, and high-voltage variable frequency power source cabinet can realize constant voltage frequency modulation in the frequency range of regulation, also can realize constant frequency pressure regulation in the output voltage range of regulation.
Embodiment two
Shown in Fig. 3 is a kind of system schematic of high-voltage motor type test system that the embodiment of the present invention two discloses, compared with embodiment one, difference is to further increase a second high-voltage current measurement cabinet AR211, a second analytical equipment AK202, an opertaing device AK203, a short-circuit test cabinet AR212 and ring current cabinet AR213.
Two high pressure incoming power cabinet AR201-AR202, two phase-shifting transformer cabinet AR203-AR204, two high-voltage variable frequency power source cabinet AR205-AR206, a high-voltage parallel cabinet AR207, a first high-voltage current measurement cabinet AR208, two high-voltage connection cabinet AR209-AR210, a first analytical equipment AK201, a tested high-voltage motor M201, accompany examination load M202 for one, a second high-voltage current measurement cabinet AR211, a second analytical equipment AK202, an opertaing device AK203, a short-circuit test cabinet AR212 and ring current cabinet AR213, containing at least one high-pressure frequency-conversion unit in each high-voltage variable frequency power source cabinet.
Examination load M202 is accompanied to be the power-equipments such as the tested high-voltage motor M201 of the simulation compressor, water pump, disintegrating machine, stock-removing machine or the Transport Machinery that drive in real work.
Described first high pressure incoming power cabinet AR201, the first phase-shifting transformer cabinet AR203, the first high-voltage variable frequency power source cabinet AR205, the first high-voltage current measurement cabinet AR208, the first high-voltage connection cabinet AR209 and tested high-voltage motor M201 are composed in series the first test circuit successively.
First test circuit initial end first high pressure incoming power cabinet AR201 one end is connected with electric power incoming line.
Described second high-voltage power supply incoming line cabinet AR202, the second phase-shifting transformer cabinet AR204, the second high-voltage variable frequency power source cabinet AR206, the second high-voltage current measurement cabinet AR211, the second high-voltage connection cabinet AR210 and accompany examination load M202 to be composed in series the second test circuit successively.
Second test circuit initial end second high pressure incoming power cabinet AR202 one end is connected with electric power incoming line.
Described high-voltage parallel cabinet AR207 one end is connected with the first variable-frequency power sources cabinet AR205 output terminal, and the other end goes out to hold with the defeated AR206 of the second variable-frequency power sources cabinet and is connected.
Described short-circuit test cabinet AR212 is connected with the output terminal of the first high-voltage current measurement cabinet AR208
Described first analytical equipment AK201 is connected with the first high-voltage connection cabinet AR209 with the first high-voltage current measurement cabinet AR208.
Described second analytical equipment AK202 is connected with the second high-voltage connection cabinet phase AR210 with the second high-voltage current measurement cabinet AR211.
Described opertaing device AK203 is connected with the second high-voltage variable frequency power source cabinet AR206 with the first high-voltage variable frequency power source cabinet AR205.
Described two high pressure incoming power cabinet AR201-AR202, for control inputs incoming power, and provide defencive function to system.
Described two phase-shifting transformer cabinet AR203-AR204, for inlet wire high-voltage power supply being converted to the input power of described two high-voltage variable frequency power source cabinet AR205-AR206, and isolate pilot system power supply and electrical network.
Two phase-shifting transformer cabinet AR203-AR204, guarantee the electrical network do not disturbed in variable-frequency power sources operational process in factory.
Described two high-voltage variable frequency power source cabinet AR205-AR206, containing at least one high-pressure frequency-conversion unit in each high-voltage variable frequency power source cabinet, it be 0-100Hz and amplitude is adjustable alternating voltage in 0 to the rated voltage interval of tested high-voltage motor that the alternating voltage for being exported by described two phase-shifting transformer AR203-AR204 converts frequency to.
High-voltage variable frequency power source cabinet output voltage is at more than 3kV, and output voltage grade has more than two kinds of specifications, and the voltage and current waveform of output is pure sine wave, and closely desirable communication power supply, meets international standard.
Realize V/F and be separated control, high-voltage variable frequency power source cabinet can realize constant voltage frequency modulation in the frequency range of regulation, also can realize constant frequency pressure regulation in the output voltage range of regulation.
Have a high-pressure frequency-conversion unit in each high-voltage variable frequency power source cabinet at least, export the AC power source of sine wave meeting international standard.
In the present embodiment, preferably, four high-pressure frequency-conversion unit are had in each high-voltage variable frequency power source cabinet.
Four high-pressure frequency-conversion unit respectively output frequency are 0-100Hz, and voltage magnitude is respectively the High Level AC Voltage source signal of 0-3kV, 0-6kV, 0-10kV or 0-13.8kV.
Wherein, 5 the internal power unit exported in the high-pressure frequency-conversion unit of 0-3kV adopt parallel connection method;
5 the internal power unit exported in the high-pressure frequency-conversion unit of 0-6kV adopt triangle tandem-type connection;
5 the internal power unit exported in the high-pressure frequency-conversion unit of 0-10kV adopt star tandem-type connection;
10 the internal power unit exported in the high-pressure frequency-conversion unit of 0-13.8kV adopt tandem-type connection, and wherein, every 5 internal power unit strings are unified into a triangular structure.
Described high-voltage parallel cabinet AR207, for controlling the first test circuit and the second test circuit parallel running.
Described short-circuit test cabinet AR212, tests for Synchronous High voltage generator three-phase steady-state short-circuit.
Described first high-voltage current measurement cabinet AR208, exports the first high-voltage connection cabinet AR209 to for the adjustable alternating voltage exported by described first high-voltage variable frequency power source cabinet AR205, gathers and measures the current signal of tested high-voltage motor M201.
Described second high-voltage current measurement cabinet AR211, exports the second high-voltage connection cabinet AR210 to for the adjustable alternating voltage exported by described second high-voltage variable frequency power source cabinet AR206, gathers and measures the current signal of accompanying examination load M202.
Due to the high symmetry of two test circuits, tested high-voltage motor M201 and accompany examination load M202 can switch mutually, does not limit its position.
Described first high-voltage connection cabinet AR209, exports tested high-voltage motor M201 to for the adjustable alternating voltage exported by described first high-voltage current measurement cabinet AR208, gathers and measures the voltage signal of tested high-voltage motor M201.
Described second high-voltage connection cabinet AR210, the adjustable alternating voltage for being exported by the second high-voltage variable frequency power source cabinet AR209 exports to accompanies examination load M202, gathers and measures the voltage signal of accompanying examination load M202.
Described first analytical equipment AK201, for the first high-voltage current measurement cabinet and the first high-voltage connection cabinet collection and the current signal of tested high-voltage motor M201 measured and voltage signal analyze.
According to the first analytical equipment AK201, the tested current signal of high-voltage motor M201 and the analysis result of voltage signal are judged to the performance of tested high-voltage motor M201.
Described second analytical equipment AK202, for analyzing received the accompany current signal of examination load M202 and voltage signal.
According to the second analytical equipment AK202 to the second high-voltage current measurement cabinet and the second high-voltage connection cabinet collection and the accompany current signal of examination load M202 and the analysis result of voltage signal measured judge the performance of tested high-voltage motor M201.
Wherein, the first analytical equipment AK201 and the second analytical equipment AK202 can be same analytical equipment, also can be two different analytical equipments.
Described opertaing device AK203, during for containing two or more high-pressure frequency-conversion unit in each high-voltage variable frequency power source cabinet AK205-AK206, send frequency change control signal to the first high-voltage variable frequency power source cabinet AK205 and the second high-voltage variable frequency power source cabinet AK206, described frequency change control signal changes out-put supply signal for controlling the first high-voltage variable frequency power source cabinet AK205 and the second high-voltage variable frequency power source cabinet AK205.
In the present invention, preferably, each high-voltage variable frequency power source cabinet AK205-AK206 respectively has four high-pressure frequency-conversion unit, the voltage magnitude of the AC power that each high-pressure frequency-conversion unit exports is interval different, according to the rated voltage of the tested motor M 201 of high pressure, opertaing device AK203 sends frequency change control signal to the first high-voltage variable frequency power source cabinet AK205 and the second high-voltage variable frequency power source cabinet AK206, controls described two high-pressure frequency-conversion unit and exports suitable ac supply signal.
Above-mentioned first analytical equipment and opertaing device can independently exist, and also can be integrated in a total equipment.
Described ring current cabinet AR213, for providing circuit operation power supply, comprising lucky third high and compressing into line power cabinet AR214, power transformer TM215, field power supply AR216 and accessory power supply AR217.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a high-voltage motor type test system, described system comprises a high-voltage parallel cabinet; A first high-voltage current measurement cabinet; Two high-voltage connection cabinets, are respectively the first high-voltage connection cabinet and the second high-voltage connection cabinet; A tested high-voltage motor and one accompany examination load;
Described high-voltage parallel cabinet, for controlling the first test circuit and the second test circuit parallel running;
Described first high-voltage current measurement cabinet, exports the first high-voltage connection cabinet to for the adjustable alternating voltage exported by the first high-voltage variable frequency power source cabinet, gathers and measures the current signal of tested high-voltage motor;
Described first high-voltage connection cabinet, exports tested high-voltage motor to for the adjustable alternating voltage exported by the first high-voltage current measurement cabinet, gathers and measures the voltage signal of tested high-voltage motor;
Described second high-voltage connection cabinet, the adjustable alternating voltage for being exported by the second high-voltage variable frequency power source cabinet exports to accompanies examination load;
It is characterized in that, described system comprises:
Two high pressure incoming power cabinets, are respectively the first high pressure incoming power cabinet and the second high pressure incoming power cabinet; Two phase-shifting transformer cabinets, are respectively the first phase-shifting transformer cabinet and the second phase-shifting transformer cabinet; Two high-voltage variable frequency power source cabinets, are respectively the first high-voltage variable frequency power source cabinet and the second high-voltage variable frequency power source cabinet; First analytical equipment; Containing at least one high-pressure frequency-conversion unit in each high-voltage variable frequency power source cabinet;
Described first high pressure incoming power cabinet, the first phase-shifting transformer cabinet, the first high-voltage variable frequency power source cabinet, the first high-voltage current measurement cabinet, the first high-voltage connection cabinet and tested high-voltage motor are composed in series the first test circuit successively;
Described second high pressure incoming power cabinet, the second phase-shifting transformer cabinet, the second high-voltage variable frequency power source cabinet, the second high-voltage connection cabinet and accompany examination load be composed in series the second test circuit successively;
Described high-voltage parallel cabinet one end is connected with the first high-voltage variable frequency power source cabinet output terminal, and the other end is connected with the second high-voltage variable frequency power source cabinet output terminal;
Described first analytical equipment is connected with the first high-voltage connection cabinet with the first high-voltage current measurement cabinet;
Described two high pressure incoming power cabinets, for control inputs incoming power, and provide defencive function to system;
Described two phase-shifting transformer cabinets, for incoming power being converted to the input power of corresponding high-voltage variable frequency power source cabinet, and isolate pilot system power supply and electrical network;
Described two high-voltage variable frequency power source cabinets, it be 0-100Hz and amplitude is adjustable alternating voltage in 0 to the rated voltage interval of tested high-voltage motor that the alternating voltage for being exported by phase-shifting transformer cabinet converts frequency to;
Described first analytical equipment, for the first high-voltage current measurement cabinet and the first high-voltage connection cabinet collection and the current signal of tested high-voltage motor measured and voltage signal analyze.
2. system according to claim 1, is characterized in that, described system comprises further:
A second high-voltage current measurement cabinet and second analytical equipment;
Described second high-voltage current measurement cabinet one end is connected with the output terminal of the second high-voltage variable frequency power source cabinet, and the other end is connected with the second high-voltage connection cabinet;
Described second analytical equipment is connected with the second high-voltage connection cabinet with the second high-voltage current measurement cabinet;
Described second high-voltage current measurement cabinet, exports the second high-voltage connection cabinet to for the adjustable alternating voltage exported by the second high-voltage variable frequency power source cabinet, gathers and measures the current signal of accompanying examination load;
Described second high-voltage connection cabinet, is further used for gathering and measures the voltage signal of accompanying examination load;
Described second analytical equipment, for the second high-voltage current measurement cabinet and the second high-voltage connection cabinet collection and accompany the examination current signal of load and the voltage signal measured analyze.
3. system according to claim 2, is characterized in that,
Described second analytical equipment is identical analytical equipment with described first analytical equipment.
4. the system according to claim 1-3 any one, is characterized in that, described system comprises further:
An opertaing device, described opertaing device is connected with the second high-voltage variable frequency power source cabinet with the first high-voltage variable frequency power source cabinet;
Described opertaing device, during for containing two or more high-pressure frequency-conversion unit in each high-voltage variable frequency power source cabinet, send frequency change control signal to the first high-voltage variable frequency power source cabinet and the second high-voltage variable frequency power source cabinet, described frequency change control signal is for controlling the first high-voltage variable frequency power source cabinet and the second high-voltage variable frequency power source cabinet exports different power supply signals.
5. the system according to claim 1-3 any one, is characterized in that, described system comprises further:
A short-circuit test cabinet, described short-circuit test cabinet is connected with the output terminal of the first high-voltage current measurement cabinet;
Described short-circuit test cabinet, tests for Synchronous High voltage generator three-phase steady-state short-circuit.
6. the system according to claim 1-3 any one, is characterized in that, described system comprises further:
A ring current cabinet, described ring current cabinet is connected with incoming power;
Described ring current cabinet, for providing control loop operating power to high-voltage motor type test system.
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| CN103267949A (en) * | 2013-05-30 | 2013-08-28 | 天津出入境检验检疫局工业产品安全技术中心 | Motor type test testing system |
| CN103630835A (en) * | 2013-11-11 | 2014-03-12 | 中国北车集团大连机车车辆有限公司 | Load device for wide-voltage class test of diesel alternating-current generator set |
| CN103744020A (en) * | 2013-12-23 | 2014-04-23 | 大连佳林设备制造有限公司 | Multifunctional incoming motor detection testing stand |
| CN104267347A (en) * | 2014-09-24 | 2015-01-07 | 无锡新大力电机有限公司 | Motor energy-saving and temperature-rising test device and method |
| CN106199428B (en) * | 2016-07-08 | 2023-04-14 | 兰州电机股份有限公司 | High-voltage high-power double-fed wind driven generator test system and measurement and control system thereof |
| CN106771792B (en) * | 2017-03-29 | 2023-11-03 | 株洲中达特科电子科技有限公司 | Locomotive converter test system |
| CN109213112A (en) * | 2017-07-04 | 2019-01-15 | 北京怀美科技有限公司 | Electronic water pump controller performance detection device |
| CN107728061A (en) * | 2017-11-10 | 2018-02-23 | 中机国际工程设计研究院有限责任公司 | Electric transmission experimental rig and system |
| CN108919122A (en) * | 2018-08-03 | 2018-11-30 | 珠海格力智能装备有限公司 | temperature rise test method and device |
| CN111025058B (en) * | 2019-12-10 | 2024-05-31 | 卧龙电气南阳防爆集团股份有限公司 | High-performance test system for pump |
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