Installation method of energy storage flywheel
Technical Field
The invention relates to the technical field of energy storage flywheels, in particular to an installation method of an energy storage flywheel.
Background
As is known, the flywheel energy storage technology has been applied to the fields of power grid frequency modulation, peak clipping and valley filling, wind power and photovoltaic power generation grid connection, light rail braking kinetic energy regeneration, Uninterruptible Power Supply (UPS), high power pulse power supply, satellite energy storage/attitude control, and the like of a power system, and developed countries such as the united states, germany, japan, and the like have many developments and applications of the flywheel energy storage technology. The frequency conversion speed regulation flywheel energy storage power generation system with the maximum capacity in the world is manufactured in Japan (the capacity is 26.5MVA, the voltage is 1100V, the rotating speed is 510690r/min, and the rotating inertia is 710 t.m 2). The university of maryland, usa, has also developed a 24kwh electromagnetically levitated flywheel system for electrical peak shaving. The flywheel weighs 172.8kg, the working rotating speed range is 11,610-46,345 rpm, the destruction rotating speed is 48,784rpm, the system output constant voltage is 110V and 240V, and the whole process efficiency is 81%. Economic analysis showed that operating for 3 years can recover the full cost. Flywheel energy storage technology has matured in the united states and they have produced a device with energy losses of up to 0.1% per hour at idle. The research on the flywheel energy storage system of the high-temperature superconducting magnetic suspension bearing is being developed by the French national research center in Europe, the German institute of physical high technology, and the Italy SISE.
The research of China in the aspect of flywheel energy storage starts late, the technical difficulty of flywheel energy storage is mainly focused on the aspects of rotor materials, manufacturing, electromagnetic bearings and the like at present, except that colleges and universities such as Qinghua university and the like have some research and progress in the aspects of rotors and electromagnetic bearings, some enterprises have the capability of producing related products after purchasing foreign companies, and the technology is supported by foreign technology teams seriously, so that the weaknesses of the companies in the aspect of autonomous technology are caused, and some materials are also required to be imported seriously, hidden dangers are buried for later-period actual product operation, maintenance and the like.
Therefore, it is very important to provide a flywheel energy storage technology completely having proprietary intellectual property rights, and in the flywheel energy storage technology, the energy storage flywheel is one of the key components, so that it becomes a long-term technical appeal for those skilled in the art how to provide an installation method of the energy storage flywheel.
Disclosure of Invention
In order to overcome the defects in the background art, the invention provides the method for installing the energy storage flywheel, provides a reference basis for the structural design of other parts of the energy storage flywheel, provides help for industrialization and productization of the energy storage flywheel and the like.
In order to achieve the above purpose, the invention adopts the following technical scheme:
an installation method of an energy storage flywheel specifically comprises the following steps:
first step, preparing a file:
1) preparing a production work order and a quality detection record file;
2) confirming an assembly drawing, the version of a BOM file and change items needing special attention;
step two, preparing auxiliary tools and labor protection articles:
1) preparing a tool required by a process file;
2) wear necessary safety protection articles;
step three, preparing materials:
1) confirming that the appearance of the material is not collided and scratched, and the color is consistent or has no other abnormity;
2) cleaning and wiping the materials with alcohol;
step four, assembling a base:
1) assembling the bottom plate and the support together;
2) lifting the base, placing the base on the bottom plate, and fastening the base;
3) the base is lifted and falls on the tool bracket, and the base is firmly fastened;
fifthly, mounting a flywheel rotor assembly:
1) the long shaft end of the rotor component is lifted and placed into the base component, the distance from the end face of the rotor to the end face of the base is measured by a depth caliper, and a record is made;
2) measuring the assembly dimension distance B of the upper axial magnetic bearing component;
3) and calculating: A-B =2.6, the dimensional tolerance is within-0.1-0 mm, and the outside range is exceeded, the bearing assembly is repaired, and the difference value is ensured to be within the tolerance range;
sixthly, mounting an upper axial magnetic bearing component:
1) coating vacuum sealing grease on the sealing ring, sleeving the sealing ring from the upper end of the rotor, and dropping the sealing ring into the sealing groove of the base;
2) two lifting rings are installed in the opposite angles of the second ring of threaded holes of the axial magnetic bearing assembly at the upper end, and the lifting rings are lifted to the upper space of the rotor by a crane;
3) wrapping the magnetic steel sheath part of the flywheel rotor by using a copper sheet, and slowly descending the crown block to enable the upper end axial magnetic bearing component to be sleeved into the flywheel rotor;
4) fastening the upper axial magnetic bearing component by using a screw;
seventh step, mounting the motor stator housing assembly:
1) sleeving a magnetic isolation protective aluminum sleeve on a flywheel rotor, coating vacuum sealing grease on a sealing ring, sleeving the sealing ring from the upper end of the rotor, and dropping the sealing ring into a sealing groove of an axial magnetic bearing assembly at the upper end;
2) placing the motor stator shell assembly on the axial magnetic bearing assembly at the upper end, assembling and placing the reference hole, drawing out the magnetic isolation protective aluminum sleeve, and screwing a connecting screw;
eighth, assembling an upper radial magnetic bearing component:
1) lifting the large end face of the upper-end radial magnetic bearing upwards to the upper part of the motor stator housing assembly, slowly descending, and aligning the mark Y of the upper-end radial magnetic bearing with the assembly process hole of the upper radial shaft magnetic bearing assembly;
2) coating uniform vacuum grease on the O-shaped ring, putting the O-shaped ring into an MX23 plug seat sealing seat, sleeving the O-shaped ring into an MX23-12 vacuum sealing socket, connecting the O-shaped ring to a base through a screw, and screwing down the screw;
ninth, matching an upper end radial sensor assembly:
1) placing the upper end radial sensor on the upper end radial magnetic bearing component, and fixing the upper end radial sensor by using a screw;
2) coating uniform vacuum grease on the O-shaped ring, putting the O-shaped ring into an MX15 plug seat sealing seat, sleeving the O-shaped ring into an MX15-8 vacuum sealing socket, connecting the O-shaped ring to a base through a screw, and screwing down the screw;
3) the thermoplastic tube is arranged on a lead of the radial magnetic bearing stator seat, after wire bonding, the contracted tube is placed at a welding position for heat sealing, the cable is smoothed out, and the cable is fixed by a wire pressing clamp;
tenth step, assembling an upper end protection bearing seat assembly:
1) the upper end of the hoisting crane protects the bearing seat assembly, and the O-shaped sealing ring is coated with vacuum sealing grease and then sleeved on the bearing seat assembly;
2) slowly placing the stator housing of the motor on a stator, wherein the plug connector is aligned between two plug connectors of the stator housing;
3) mounting the rotary transformer to the end of the rotor, fastening the rotor by using a screw, and mounting and fastening a stator pressing cover of the rotary transformer on the rotary transformer;
step ten, adjusting a protection gap:
1) and measuring the clearance between the lower end of the rotor and a bearing seat at the lower end, measuring A-B, recording the absolute value of the theoretical difference value of 0.15 mm: A-B <0.15, the amount of 0.15- (B-A) needs to be removed from the designated surface of the lower end protection bearing end cover, when A-B >0.15, the lower end protection bearing end cover with the thickness meeting A-B <0.15 needs to be selected for replacement, and then the adjustment is carried out according to the method of A-B < 0.15;
2) adjusting the clearance between the lower axial magnetic bearing component and the rotor to be 1.3 mm;
3) adjusting the total value of the protection clearance to be 1.4 mm;
4) adjusting the gap between the flywheel rotor and a sealing end cover at the bottom of a lower protection bearing to be 1 mm;
step ten, mounting a lower end protection bearing seat assembly;
step eleven, vacuum pumping: pumping to below 10Pa within 30min, if not, detecting leakage with a leakage detector, finding out leakage point, and reporting to quality department;
fourteenth, checking the flywheel body:
1) checking the appearance;
2) the method comprises the following steps of (1) carrying out static floating test, connecting a USBCAN (Universal Serial bus controller) with a magnetic bearing control box and a computer, electrifying the magnetic bearing control box, opening an upper computer of the magnetic bearing, clicking an operation button and setting related parameters;
fifteenth step, assembling a control cabinet:
the flywheel is arranged in a control cabinet, a flywheel mounting square pipe hole is aligned with a base hole, the flywheel mounting square pipe hole is fastened by a screw, a vacuum pump pipe is connected, a circuit is connected according to a wiring design drawing, and an air duct baffle is mounted;
sixthly, detecting electrical property parameters:
1) and testing levelness: measuring the levelness of the flywheel installation by using a level meter; the longitudinal horizontal inclination is not more than 6 degrees, and the transverse horizontal inclination is not more than 5 degrees;
2) and verifying a test loop:
A. determining a ground connection;
B. determining that the phase sequence of the primary alternating current loop is correct and no short circuit or open circuit is caused, and determining that the connection is tight;
C. determining that the phase sequence of the secondary alternating current loop is correct and no short circuit or open circuit occurs, and determining that the connection is tight;
D. determining that the direct current loop is correct in wiring and has no conditions of reverse positive and negative connection, short circuit and open circuit, and determining that the connection is tight;
E. determining that the communication loop is connected correctly and has no short circuit or open circuit, and determining that the connection is tight;
3) and power-on verification:
A. step-by-step power-on, closing a 380V circuit breaker at a power supply, and measuring whether output voltage is normal by using a multimeter and an oscilloscope;
B. closing the secondary alternating current switch, and checking whether the fan, the UPS, the switching power supply and the like work normally or not;
C. checking whether each board card works normally after being electrified;
D. starting an upper computer monitoring system, checking whether communication is normal or not and whether data transmission is normal or not;
E. closing a superior switch of the transformer, and checking whether the output voltage of the transformer is normal;
F. closing an upper switch of the rectifier bridge, and checking whether the direct current output is normal;
G. and operating the system to observe whether the flywheel and the test cabinet work normally.
4) And flywheel charge-discharge test:
A. the USBCAN is connected with the motor control board and the computer, the flywheel motor control upper computer is started, the operation button is clicked, and relevant parameters are set;
B. clicking to start operation, controlling charging, and waiting for the rotating speed to reach the rated rotating speed;
when the rated rotating speed is reached, the commercial power switch is cut off, the flywheel automatically detects the commercial power failure, and the flywheel discharges;
5) and testing the back electromotive force of the rated rotating speed of the flywheel:
A. stopping charging the flywheel after the flywheel reaches the rated rotating speed and continuously and stably operates for a period of time;
B. measuring the discharge voltage (AC) of the flywheel by using a multimeter, wherein the discharge voltage is not less than 430V;
6) and testing the charging time of the flywheel:
A. after the flywheel continuously and stably operates for a period of time; adjusting the charging power to a UPS charging mode, and recording the charging time of the flywheel;
B. charging to a rated rotating speed, and recording charging time;
7) testing the rated power continuous discharge time of the flywheel:
A. stopping charging the flywheel after the flywheel reaches the rated rotating speed and continuously and stably operates for a period of time;
B. adjusting the power of an adjustable load connected with the output end of the flywheel to a rated power, and recording the discharge time of the flywheel;
C. discharging to a discharge limit rotating speed, and recording the discharge time;
8) and testing the charging switching time of the flywheel:
connecting an oscilloscope with the input end of the flywheel, adjusting the charging power to a UPS charging mode, charging, and recording the charging switching time of the flywheel;
9) testing the rated power discharge switching time of the flywheel:
A. after the flywheel reaches the rated rotating speed and continuously and stably operates for a period of time;
B. connecting an oscilloscope with the output end of the flywheel, adjusting the load power to the rated power, discharging, and recording the discharge switching time of the flywheel;
10) testing the rated rotating speed and temperature of the flywheel:
A. rotating the flywheel to a rated rotating speed, and monitoring flywheel data through a temperature monitoring system;
B. recording temperature data of the magnetic bearing and the motor of the flywheel which continuously operates for 72 hours;
11) testing rated rotating speed noise and vibration of the flywheel:
A. in the process of continuously testing the flywheel at the rated rotation speed, testing the noise value of the flywheel, wherein the testing times are not less than 10, and the noise value is less than 80 dB;
B. monitoring and recording the vibration data of the flywheel through a vibration test system, wherein the vibration amplitude is less than or equal to 0.9;
12) and overload capacity testing:
A. after the flywheel reaches the rated rotating speed and continuously and stably operates for a period of time;
B. recording power data by using an oscilloscope and upper computer software, adjusting the load power to 110 percent of rated power for discharging for 10 minutes, adjusting the load power to 120 percent of rated power for discharging for 1 minute;
13) and capacity test at different temperatures:
A. the discharge tests are respectively carried out on the flywheels with full power and rated rotating speed for 5 times under the conditions of 55 ℃, 25 ℃, 15 ℃ and 35 ℃, and the flywheels are all discharged to the discharging limit rotating speed;
B. respectively recording the discharge time and calculating the flywheel capacity;
C. the capacity is more than 90% at 55 ℃, equal to 100% at 25 ℃, more than 90% at-15 ℃ and more than 80% at-35 ℃;
14) and continuous operation test:
A. starting and adjusting the test system under a rated working condition;
B. after stabilization, recording power, voltage, current, power factor, frequency, box temperature, flywheel temperature, ambient temperature, air relative humidity and atmospheric pressure;
C. recording the above parameters 1 time every 30 minutes;
D. running for 10min after overload of 10% 10min before the specified continuous running is finished;
E. observing whether abnormal phenomena such as overhigh temperature, air leakage and the like occur in the test process, and recording the result;
15) and controlling and protecting system function test:
starting a system, detecting whether the communication function is normal or not by connecting a test upper computer with the system RS485, adjusting the values of a protection system such as pressure, temperature and current and detecting whether the system takes treatment and emergency measures or not;
seventeenth, archiving and warehousing:
1) after the test is qualified, the test file is audited and filed;
2) carrying out necessary cleaning and mechanical fastening on the flywheel product;
3) protecting and packaging;
4) and entering a finished product warehouse.
In the method for mounting the energy storage flywheel, when the gap between the lower end axial magnetic bearing assembly and the rotor is adjusted to be 1.3mm in the tenth step, a dial indicator is firstly used for pressing the top surface of the rotary transformer tool, the lower end protection bearing seat assembly is mounted on the flywheel and fastened, the numerical value change of the dial indicator in the process is observed, the final change value is recorded, when the change value is larger than 0.45mm, the amount of the change value of minus 0.45 needs to be removed from the designated surface of the lower end protection bearing seat, and when the change value is smaller than 0.45mm, the amount of the change value of minus 0.45 needs to be removed from the designated surface of the lower end protection bearing seat.
In the method for installing the energy storage flywheel, when the total value of the protection clearance is adjusted to be 1.4mm in the tenth step, a lower end protection bearing seat assembly is installed on the flywheel and fastened, an M32X1.5 tightening nut is fastened on a rotor, a dial indicator is used for pressing the top surface of a rotary transformer tool, a PSW type power supply is used for electrifying an axial magnetic bearing, and a voltage and current reference value is set: and (5) starting a power supply at 55V and 2.6A, observing the numerical change of the dial indicator, finally recording the change value, and removing the change value of-1.4 on the binding surface of the locking nut.
In the method for installing the energy storage flywheel, when the gap between the flywheel rotor and the bottom sealing end cover of the lower protection bearing is adjusted to be 1mm in the tenth step, when A-B is less than 0.15, the amount of 0.15- (B-A) needs to be removed from the designated surface of the bottom sealing cover of the lower protection bearing, and when A-B is more than 0.15, the amount of 0.15- (A-B) needs to be removed from the designated surface of the bottom sealing cover of the lower protection bearing.
In the installation method of the energy storage flywheel, in the fourteenth step, the axial suspension test is to click "plus 1" of the Z _ P, the green indicator light is turned on, click "plus 1" of the Z end, the green indicator light is turned on, and the axial green suspension indicator line stays at the position of 0; radial suspension test is "add 1" of clicking AB _ P, and the preceding green pilot lamp of AB _ P lights, clicks "add 1" of A end, and its green pilot lamp lights, clicks "add 1" of B end, and its green pilot lamp lights, and upper and lower radial suspension pilot point all stabilizes at circle central point.
By adopting the technical scheme, the invention has the following advantages:
the energy storage flywheel processed by the method is optimized in the steps of adjusting a protection gap, vacuumizing, detecting electrical performance parameters and the like, the energy storage flywheel is required to be pumped to below 10Pa within 30min, and further, a levelness of the flywheel installation is measured by using a level meter; the longitudinal horizontal inclination is not more than 6 degrees, the transverse horizontal inclination is not more than 5 degrees, and the like, the energy storage flywheel processed by the method provides reference for the structural design of other parts of the energy storage flywheel, and provides help for industrialization and productization of the energy storage flywheel.
Detailed Description
The present invention will be explained in more detail by the following examples, which are not intended to limit the invention;
the invention relates to an installation method of an energy storage flywheel, which specifically comprises the following steps:
first step, preparing a file:
1) preparing a production work order and a quality detection record file;
2) confirming an assembly drawing, the version of a BOM file and change items needing special attention;
step two, preparing auxiliary tools and labor protection articles:
1) preparing a tool required by a process file;
2) wear necessary safety protection articles;
step three, preparing materials:
1) confirming that the appearance of the material is not collided and scratched, and the color is consistent or has no other abnormity;
2) cleaning and wiping the materials with alcohol;
step four, assembling a base:
1) assembling the bottom plate and the support together;
2) lifting the base, placing the base on the bottom plate, and fastening the base;
3) the base is lifted and falls on the tool bracket, and the base is firmly fastened;
fifthly, mounting a flywheel rotor assembly:
1) the long shaft end of the rotor component is lifted and placed into the base component, the distance from the end face of the rotor to the end face of the base is measured by a depth caliper, and a record is made; note that: a. the descending process of the rotor must be slow and cannot collide with the base; b. when the rotor is in a stuck state in the descending process, the rotor is required to be lifted in time, and the rotor is placed after the position is determined again;
2) measuring the assembly dimension distance B of the upper axial magnetic bearing component; note that: dimension B, etc. are detailed in "quality inspection record";
3) and calculating: A-B =2.6, the dimensional tolerance is within-0.1-0 mm, and the outside range is exceeded, the bearing assembly is repaired, and the difference value is ensured to be within the tolerance range;
sixthly, mounting an upper axial magnetic bearing component:
1) coating vacuum sealing grease on the sealing ring, sleeving the sealing ring from the upper end of the rotor, and dropping the sealing ring into the sealing groove of the base; note that: coating vacuum sealing grease for one circle around the sealing ring uniformly at one time;
2) two lifting rings are installed in the opposite angles of the second ring of threaded holes of the axial magnetic bearing assembly at the upper end, and the lifting rings are lifted to the upper space of the rotor by a crane;
3) wrapping the magnetic steel sheath part of the flywheel rotor by using a copper sheet, and slowly descending the crown block to enable the upper end axial magnetic bearing component to be sleeved into the flywheel rotor; note that: the upper axial magnetic bearing assembly reference hole is aligned with the base assembly reference hole.
4) Fastening the upper axial magnetic bearing component by using a screw; note that: the end of the screw thread is coated with proper Lontai thread glue before the screw is installed. The gluing process is subject to relevant process rules.
Seventh step, mounting the motor stator housing assembly:
1) sleeving a magnetic isolation protective aluminum sleeve on a flywheel rotor, coating vacuum sealing grease on a sealing ring, sleeving the sealing ring from the upper end of the rotor, and dropping the sealing ring into a sealing groove of an axial magnetic bearing assembly at the upper end; note that: and uniformly coating vacuum sealing grease for one circle around the sealing ring at one time.
2) Placing the motor stator shell assembly on the axial magnetic bearing assembly at the upper end, assembling and placing the reference hole, drawing out the magnetic isolation protective aluminum sleeve, and screwing a connecting screw;
eighth, assembling an upper radial magnetic bearing component:
1) lifting the large end face of the upper-end radial magnetic bearing upwards to the upper part of the motor stator housing assembly, slowly descending, and aligning the mark Y of the upper-end radial magnetic bearing with the assembly process hole of the upper radial shaft magnetic bearing assembly;
2) coating uniform vacuum grease on the O-shaped ring, putting the O-shaped ring into an MX23 plug seat sealing seat, sleeving the O-shaped ring into an MX23-12 vacuum sealing socket, connecting the O-shaped ring to a base through a screw, and screwing down the screw; note that: and coating a loctite 243 at the end of the screw before fastening on a lead of the radial magnetic bearing stator seat, and after wire welding, placing the contracted pipe at the welding position for heat sealing. The lead is plugged into the side groove. Before welding a wire, a gap between the rotor and the stator seat is plugged by wiping paper; the wire ends are required to be in one-to-one correspondence when being welded; the cable cannot be bent.
Ninth, matching an upper end radial sensor assembly:
1) placing the upper end radial sensor on the upper end radial magnetic bearing component, and fixing the upper end radial sensor by using a screw; note that: a. the positions of the four sensors are in one-to-one correspondence with the positions of the lower sensors. Upper X + to lower X +, upper X-to lower X-, upper Y + to lower Y +, upper Y-to lower Y-.
b. The falling is slow, so that the sensor is ensured not to collide in the falling process;
c. the end of the screw is coated with loctite 243 before fastening.
2) Coating uniform vacuum grease on the O-shaped ring, putting the O-shaped ring into an MX15 plug seat sealing seat, sleeving the O-shaped ring into an MX15-8 vacuum sealing socket, connecting the O-shaped ring to a base through a screw, and screwing down the screw;
3) the thermoplastic tube is arranged on a lead of the radial magnetic bearing stator seat, after wire bonding, the contracted tube is placed at a welding position for heat sealing, the cable is smoothed out, and the cable is fixed by a wire pressing clamp; note that: a. before welding a wire, a gap between the rotor and the stator seat is plugged by wiping paper;
b. the wire ends are required to be in one-to-one correspondence when being welded;
c. the cable cannot be bent;
d. the screw is screwed down after coating with loctite 243.
Tenth step, assembling an upper end protection bearing seat assembly:
1) the upper end of the hoisting crane protects the bearing seat assembly, and the O-shaped sealing ring is coated with vacuum sealing grease and then sleeved on the bearing seat assembly;
2) slowly placing the stator housing of the motor on a stator, wherein the plug connector is aligned between two plug connectors of the stator housing;
3) mounting the rotary transformer to the end of the rotor, fastening the rotor by using a screw, and mounting and fastening a stator pressing cover of the rotary transformer on the rotary transformer;
step ten, adjusting a protection gap:
1) and measuring the clearance between the lower end of the rotor and a bearing seat at the lower end, measuring A-B, recording the absolute value of the theoretical difference value of 0.15 mm: A-B <0.15, the amount of 0.15- (B-A) needs to be removed from the designated surface of the lower end protection bearing end cover, when A-B >0.15, the lower end protection bearing end cover with the thickness meeting A-B <0.15 needs to be selected for replacement, and then the adjustment is carried out according to the method of A-B < 0.15;
2) adjusting the clearance between the lower axial magnetic bearing component and the rotor to be 1.3 mm; firstly, a dial indicator is used for pressing the top surface of the rotary transformer tool. And mounting the lower end protection bearing seat assembly on the flywheel and fastening. The change in value of the dial indicator during the process was observed and the resulting change was recorded.
When the variation value is larger than 0.45mm, the designated surface of the bearing seat needs to be protected at the lower end by removing (the variation value is-0.45).
When the variation value is less than 0.45mm, the designated surface of the bearing seat needs to be protected at the lower end by the amount (0.45-variation value) removed.
3) Adjusting the total value of the protection clearance to be 1.4 mm; and mounting and fastening the lower end protection bearing seat assembly on the flywheel. M32X1.5 tightening nuts are fastened to the rotor. And pressing the dial indicator on the top surface of the rotary transformer tool. Setting a voltage current reference value by using an axial magnetic bearing powered by a PSW type power supply: 55V, 2.6A. And starting a power supply, observing the numerical value change of the dial indicator, and finally recording the change value. The amount of removal (variation-1.4) at the abutment surface of the locking nut.
4) Adjusting the gap between the flywheel rotor and a sealing end cover at the bottom of a lower protection bearing to be 1 mm; when A-B is less than 0.15, the designated surface of the sealing cover at the bottom of the lower end protection bearing needs to be removed by 0.15- (B-A).
When A-B is greater than 0.15, the specified surface of the sealing cover at the bottom of the lower end protection bearing needs to be removed by 0.15- (A-B).
Step ten, mounting a lower end protection bearing seat assembly;
step eleven, vacuum pumping: pumping to below 10Pa within 30min, if not, detecting leakage with a leakage detector, finding out leakage point, and reporting to quality department;
fourteenth, checking the flywheel body:
1) checking the appearance;
2) the method comprises the following steps of (1) carrying out static floating test, connecting a USBCAN (Universal Serial bus controller) with a magnetic bearing control box and a computer, electrifying the magnetic bearing control box, opening an upper computer of the magnetic bearing, clicking an operation button and setting related parameters; axial suspension test
Clicking 'plus 1' of Z _ P, lighting a green indicator lamp of the Z _ P, clicking 'plus 1' of the Z end, lighting a green indicator lamp of the Z _ P, and stopping an axial green suspension indicator line at the position of 0.
Radial suspension test
Click "plus 1" of AB _ P, the preceding green pilot lamp of AB _ P lights, click "plus 1" of A end, its green pilot lamp lights, click "plus 1" of B end, its green pilot lamp lights, upper and lower radial suspension pilot point all stabilizes at circle central point.
Fifteenth step, assembling a control cabinet:
the flywheel is arranged in a control cabinet, a flywheel mounting square pipe hole is aligned with a base hole, the flywheel mounting square pipe hole is fastened by a screw, a vacuum pump pipe is connected, a circuit is connected according to a wiring design drawing, and an air duct baffle is mounted;
sixthly, detecting electrical property parameters:
1) and testing levelness: measuring the levelness of the flywheel installation by using a level meter; the longitudinal horizontal inclination is not more than 6 degrees, and the transverse horizontal inclination is not more than 5 degrees;
2) and verifying a test loop:
A. determining a ground connection;
B. determining that the phase sequence of the primary alternating current loop is correct and no short circuit or open circuit is caused, and determining that the connection is tight;
C. determining that the phase sequence of the secondary alternating current loop is correct and no short circuit or open circuit occurs, and determining that the connection is tight;
D. determining that the direct current loop is correct in wiring and has no conditions of reverse positive and negative connection, short circuit and open circuit, and determining that the connection is tight;
E. determining that the communication loop is connected correctly and has no short circuit or open circuit, and determining that the connection is tight;
3) and power-on verification:
A. step-by-step power-on, closing a 380V circuit breaker at a power supply, and measuring whether output voltage is normal by using a multimeter and an oscilloscope;
B. closing the secondary alternating current switch, and checking whether the fan, the UPS, the switching power supply and the like work normally or not;
C. checking whether each board card works normally after being electrified;
D. starting an upper computer monitoring system, checking whether communication is normal or not and whether data transmission is normal or not;
E. closing a superior switch of the transformer, and checking whether the output voltage of the transformer is normal;
F. closing an upper switch of the rectifier bridge, and checking whether the direct current output is normal;
G. and operating the system to observe whether the flywheel and the test cabinet work normally.
4) And flywheel charge-discharge test:
A. the USBCAN is connected with the motor control board and the computer, the flywheel motor control upper computer is started, the operation button is clicked, and relevant parameters are set;
B. clicking to start operation, controlling charging, and waiting for the rotating speed to reach the rated rotating speed;
when the rated rotating speed is reached, the commercial power switch is cut off, the flywheel automatically detects the commercial power failure, and the flywheel discharges;
5) and testing the back electromotive force of the rated rotating speed of the flywheel:
A. stopping charging the flywheel after the flywheel reaches the rated rotating speed and continuously and stably operates for a period of time;
B. measuring the discharge voltage (AC) of the flywheel by using a multimeter, wherein the discharge voltage is not less than 430V;
6) and testing the charging time of the flywheel:
A. after the flywheel continuously and stably operates for a period of time; adjusting the charging power to a UPS charging mode, and recording the charging time of the flywheel;
B. charging to a rated rotating speed, and recording charging time;
7) testing the rated power continuous discharge time of the flywheel:
A. stopping charging the flywheel after the flywheel reaches the rated rotating speed and continuously and stably operates for a period of time;
B. adjusting the power of an adjustable load connected with the output end of the flywheel to a rated power, and recording the discharge time of the flywheel;
C. discharging to a discharge limit rotating speed, and recording the discharge time;
8) and testing the charging switching time of the flywheel:
connecting an oscilloscope with the input end of the flywheel, adjusting the charging power to a UPS charging mode, charging, and recording the charging switching time of the flywheel;
9) testing the rated power discharge switching time of the flywheel:
A. after the flywheel reaches the rated rotating speed and continuously and stably operates for a period of time;
B. connecting an oscilloscope with the output end of the flywheel, adjusting the load power to the rated power, discharging, and recording the discharge switching time of the flywheel;
10) testing the rated rotating speed and temperature of the flywheel:
A. rotating the flywheel to a rated rotating speed, and monitoring flywheel data through a temperature monitoring system;
B. recording temperature data of the magnetic bearing and the motor of the flywheel which continuously operates for 72 hours;
11) testing rated rotating speed noise and vibration of the flywheel:
A. in the process of continuously testing the flywheel at the rated rotation speed, testing the noise value of the flywheel, wherein the testing times are not less than 10, and the noise value is less than 80 dB;
B. monitoring and recording the vibration data of the flywheel through a vibration test system, wherein the vibration amplitude is less than or equal to 0.9;
12) and overload capacity testing:
A. after the flywheel reaches the rated rotating speed and continuously and stably operates for a period of time;
B. recording power data by using an oscilloscope and upper computer software, adjusting the load power to 110 percent of rated power for discharging for 10 minutes, adjusting the load power to 120 percent of rated power for discharging for 1 minute;
13) and capacity test at different temperatures:
A. the discharge tests are respectively carried out on the flywheels with full power and rated rotating speed for 5 times under the conditions of 55 ℃, 25 ℃, 15 ℃ and 35 ℃, and the flywheels are all discharged to the discharging limit rotating speed;
B. respectively recording the discharge time and calculating the flywheel capacity;
C. the capacity is more than 90% at 55 ℃, equal to 100% at 25 ℃, more than 90% at-15 ℃ and more than 80% at-35 ℃;
14) and continuous operation test:
A. starting and adjusting the test system under a rated working condition;
B. after stabilization, recording power, voltage, current, power factor, frequency, box temperature, flywheel temperature, ambient temperature, air relative humidity and atmospheric pressure;
C. recording the above parameters 1 time every 30 minutes;
D. running for 10min after overload of 10% 10min before the specified continuous running is finished;
E. observing whether abnormal phenomena such as overhigh temperature, air leakage and the like occur in the test process, and recording the result;
15) and controlling and protecting system function test:
starting a system, detecting whether the communication function is normal or not by connecting a test upper computer with the system RS485, adjusting the values of a protection system such as pressure, temperature and current and detecting whether the system takes treatment and emergency measures or not;
seventeenth, archiving and warehousing:
1) after the test is qualified, the test file is audited and filed;
2) carrying out necessary cleaning and mechanical fastening on the flywheel product;
3) protecting and packaging;
4) and entering a finished product warehouse.
The present invention is not described in detail in the prior art.
The embodiments selected for the purpose of disclosing the invention, are presently considered to be suitable, it being understood, however, that the invention is intended to cover all variations and modifications of the embodiments which fall within the spirit and scope of the invention.