CN104378034B - The operation control system of brushless ac compound rectifier excitation brshless DC motor - Google Patents
The operation control system of brushless ac compound rectifier excitation brshless DC motor Download PDFInfo
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- CN104378034B CN104378034B CN201410663153.4A CN201410663153A CN104378034B CN 104378034 B CN104378034 B CN 104378034B CN 201410663153 A CN201410663153 A CN 201410663153A CN 104378034 B CN104378034 B CN 104378034B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
- H02P9/26—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices
- H02P9/30—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices
Abstract
A kind of operation control system of brushless ac compound rectifier excitation brshless DC motor is disclosed, it includes rectification part, energy storage part, inverting part, sinusoidal filter, output transformer, load/main hair, AC frequency conversion excitation division, control unit；The stator power winding of motor connects the input of rectification part by three-phase line, the positive and negative dc bus output end of rectification part connects the positive and negative dc bus input of inverting part, and it is parallel with energy storage part on positive and negative dc bus, the output end of inverting part connects the input of sinusoidal filter by three-phase line, the output end of sinusoidal filter connects the three-phase input end for exporting transformer by three-phase line, export transformer connection load/main hair, stator excitation winding is connected to the three-phase output end of AC frequency conversion excitation division by three-phase line, the positive and negative dc bus input of AC frequency conversion excitation division is parallel on positive and negative dc bus, control unit is that inverting part and AC frequency conversion excitation division provide control signal.
Description
Technical field
The present invention relates to a kind of operation control system of motor, it is straight that more particularly to a kind of brushless ac compound rectifier excitation is brushless
Flow the operation control system of motor.
Background technology
Current brushless excitation brshless DC motor employs DC excitation in excitation side majority, and in rotor power excitation
All it is that rotor power excitation is carried out using direct current winding electromagnetic field.As Figure 11 shows the operation of DC excitation alternating current generator
Control system.Although DC excitation control is relatively easy, technology also comparative maturity, conventional DC excitation electromotor is in the slow-speed of revolution
Under have that DC excitation efficiency is low, range of operation is narrow or the problem of excitation failure and relatively low power density, reduce electrical excitation
Efficiency.And rotor power excitation sends conventional sine voltage only with direct current winding electromagnetic field.Encouraged to solve direct current
The problem of excitation efficiency reduction or excitation that magnetic exists at the low rotational speed are failed.It is brushless straight in order to further improve brushless excitation
Flow the power density and generating efficiency of motor.I, which takes charge of, have passed through after numerous studies, demonstration, checking, it has been suggested that and apply
The utility model that the patent of invention and number of patent application that number of patent application is 201410356061.1 are 201420412580.0 is special
Profit《Brushless ac compound rectifier excitation brshless DC motor》.
But in order to realize the function of brushless ac compound rectifier excitation brshless DC motor, it is necessary to provide a kind of especially suitable for it
Operation control system for the motor.To enable motor to realize alternating-current brushless variable frequency excitation, the system employs exchange and become
Frequency excitation division provides AC frequency conversion excitation voltage for the brushless ac Exciting Windings for Transverse Differential Protection of motor.And according to power of motor size, it is fixed
Sub- power winding uses the polyphase windings such as three, six, nine, and motor operation control system also correspondingly uses the multiple-pulses such as 6,12,18
Rectification.Reduce harmonic wave, reduction system cost, the purpose of the generating efficiency of raising system so as to reach.
In addition, to realize under special occasions such as urgent function (the Take Home that pull in shore of ship Shaft-Generator
System) function.Damage in emergency circumstances, main frame and gear-box can be disengaged, subsidiary engine drives main hair in sustainer
Motor is powered as ship emergency power supply, and the axle generator that generating state is operated in originally is then changed into axle band electric motor operation,
So as to drive propeller, emergent pull in shore (Take Home System) is realized.In addition, ship power supply also includes batteries
The small emergency power supply constituted.When main generator group can not power, from Emergency generator or batteries to the important boat of ship
Row equipment and emergency lighting system are powered.Therefore the operation control of the brushless ac compound rectifier excitation brshless DC motor in the present invention
System is, it is necessary to which possessing makes power by brushless excitation brshless DC motor to load/main hair and by main generator to brushless excitation
The ability of two-way flow between brshless DC motor.
The content of the invention
It is an object of the invention to provide a kind of operation control system of brushless ac compound rectifier excitation brshless DC motor.In electricity
Alternating-current brushless excitation is employed on machine, low speed excitation is solved the problems, such as, it is ensured that more than zero-speed can generate electricity, expand electricity generation system
Working range；Using rotary rectifier, (permanent magnetic field+DC electromagnetic field) excitation brushless dc generator is combined, electricity is improved
Acc power density and reduction motor and system cost；Generating end uses brushless direct-current winding, produces trapezoidal wave generating voltage, improves
Low speed generated output, further improves power density, significantly reduces motor and system bulk；According to watt level, using 6,12,
The multiple-pulse rectifications such as 18, reduce harmonic wave, can cancel PWM rectifications, reduce system cost, improve the efficiency of whole service system；
Four-quadrant commutation inversion scheme is used in rectification and inversion link, whole system can be made on the basis of system architecture is not changed,
Realize generating state to the switching of motoring condition.
The brushless ac compound rectifier excitation brshless DC motor (1) of the present invention includes：Stator excitation winding (12), motor turns
Sub (13), stator power winding (14).Described rotor (13) includes rotor field coil (131), rotating rectifier
(132), rotor power Energizing unit (133), described rotor power Energizing unit (133) includes direct current winding (1331) and forever
Magnet (1332), direct current winding (1331) is attached to be wound on permanent magnet (1332) and both progress compound rectifier excitations.
The operation control system of the present invention includes：Including rectification part (3), energy storage part (4), inverting part (5), sinusoidal filtering
Device (6), output transformer (7), load/main hair (8), AC frequency conversion excitation division (9), control unit (10)；Wherein brushless ac is answered
The stator power winding (14) for closing excitation brushless direct current generator is connected to the input of rectification part, rectification part by three-phase line
(3) positive and negative dc bus output end is connected to the positive and negative dc bus input of inverting part (5), and in rectification part (3) and
Energy storage part (4) is parallel with positive and negative dc bus between inverting part (5), the output end of inverting part (5) is connected by three-phase line
The input of sinusoidal filter (6) is connected to, the output end of sinusoidal filter (6) is connected to output transformer by three-phase line
(7) three-phase input end, output transformer (7) is connected to load/main hair (8) by three-phase and four-line circuit or three-phase line, fixed
Sub- Exciting Windings for Transverse Differential Protection (12) is connected to the three-phase output end of AC frequency conversion excitation division (9), AC frequency conversion excitation division by three-phase line
(9) positive and negative dc bus input is parallel on the positive and negative dc bus between energy storage part (4) and inverting part (5), control unit
(10) it is that inverting part (5) and AC frequency conversion excitation division (9) provide control signal.
A kind of operation control system also includes：Direct current reactor (2)；When the brushless ac compound rectifier excitation in system
Brshless DC motor (1) uses six phase windings on its stator power winding (14), and is divided into two groups 120 ° symmetrical three-phase stars
During type winding, system carries out six impulse commutations using two groups of three phase rectifier portions (3)；Two groups of direct current reactors (2) are connected on respectively
To the output electricity of two groups of rectification parts (3) between the dc bus output plus terminal and energy storage part (4) positive pole of two groups of rectification parts (3)
Pressure is pressed.
Wherein first group three-phase star winding connects the input of first group of rectification part (3), rectification part by three-phase line
(3) positive and negative dc bus output end is connected to the positive and negative dc bus input of inverting part (5), in rectification part (3) and inversion
Energy storage part (4) is parallel with positive and negative dc bus between portion (5), and in rectification part (3) dc bus positive output end and energy storage
First group of direct current reactor (2) is in series with positive direct-current bus between portion (4) positive pole.
Second group of three-phase star winding of stator power winding (14) passes through three-phase line second group of rectification part (3) of connection
Energy storage part (4), rectification part (3) are parallel with input, the positive and negative dc bus between this group of rectification part (3) and inverting part (5)
Positive and negative dc bus output end be connected to the positive and negative dc bus input of inverting part (5), this group of rectification part (3) it is positive and negative straight
Stream bus output end is parallel to the both positive and negative polarity of energy storage part (4), and in this group of rectification part (3) dc bus positive output end and energy storage part
(4) second group of direct current reactor (2) is in series with the positive direct-current bus between positive pole.
The output end of inverting part (5) is connected to the input of sinusoidal filter (6), sinusoidal filter by three-phase line
(6) output end is connected to the three-phase input end of output transformer (7) by three-phase line.Output transformer (7) passes through three-phase
Four-wire circuit or three-phase line are connected to load/main hair (8).The stator power winding (14) of motor is connected to by three-phase line
The three-phase output end of the AC frequency conversion excitation division (9) of runtime, the positive and negative dc bus input of AC frequency conversion excitation division (9)
It is parallel on the positive and negative dc bus between energy storage part (4) and inverting part (5).Control unit (10) be inverting part (5) with exchange change
Frequency excitation division (9) provides control signal.
A kind of operation control system also includes：Position detection unit (11).It is brushless in brushless ac compound rectifier excitation
The position test side of direct current generator (1) has position detection unit (11) to gather motor rotor position signal and provides it to control
Portion (10).
Described AC frequency conversion excitation division (9) controls full bridge structure entirely using three-phase IGBT, is each by control unit (10)
IGBT provides make-and-break signal.One afterflow two of reverse parallel connection between wherein each IGBT C poles (colelctor electrode) and E poles (emitter stage)
Pole pipe, fly-wheel diode plays afterflow effect when IGBT power switch pipes are turned off by E poles to C poles one-way conduction.AC frequency conversion
The positive and negative direct-flow input end of excitation division (9) is connected to positive and negative dc bus, and comes from power taking on positive and negative dc bus as electric current
Source, full-bridge inverting is controlled for AC frequency conversion exciting current by three-phase IGBT entirely, and the three-phase output end of AC frequency conversion excitation division (9) leads to
Cross stator power winding (14) the generation AC frequency conversion that three-phase line is connected to brushless ac compound rectifier excitation brshless DC motor (1)
Excitation induction field.
Described rectification part (3) includes：The uncontrollable rectification of three phase full bridge diode, three phase full bridge IGCT half control are whole
Stream, the rectification of three phase full bridge IGBT half controls, three phase full bridge IGCT full-controlled rectifier, three phase full bridge IGBT full-controlled rectifiers.It is preferred that,
Rectification part (3) employs the uncontrollable rectification of three phase full bridge diode and three phase full bridge TGBT full-controlled rectifiers in the present invention.Specifically,
Rectification part (3) in the present invention includes：PWM rectification parts (31), full-bridge rectification portion (32), commutation inversion portion (33).Particularly,
Commutation inversion portion (33) refers to that three phase full bridge IGBT can both be operated in the PWM rectifications of rectification state, can also be operated in inverse
The full control inversion of change state.
It is that three phase full bridge IGBT controls inversion entirely that described inverting part (5), which is used,.Inverting part (5) is complete using three-phase IGBT full-bridges
Structure is controlled, make-and-break signal is provided for each IGBT by control unit (10).Wherein each IGBT C poles (colelctor electrode) and E poles (hair
Emitter-base bandgap grading) between one fly-wheel diode of reverse parallel connection, fly-wheel diode by E poles to C poles one-way conduction, in IGBT power switch pipes
Afterflow effect is played during shut-off.Specifically, inverting part (5) in the present invention includes：Full control inverting part (51)；Inversion rectification part
(52).Particularly, inversion rectification part (52) refers to that three phase full bridge IGBT can both be operated in the full control inversion of inverter mode, also
The PWM rectifications of rectification state can be operated in.
Based on the difference of described rectification part (3) and inverting part (5), control unit (10) specifically further comprises inverse to control entirely
Change portion (51), inversion rectification part (52), AC frequency conversion excitation division (9), PWM rectification parts (31), commutation inversion portion (33) provide control
Signal processed.
Described energy storage part (4) includes：The battery pack of DC/DC conversion, super capacitor, high-energy capacitor, electrochemical capacitor, lead
One or more in acid accumulator, nickel-cadmium cell, Ni-MH battery, flow battery, sodium-sulphur battery, lithium ion battery, connection is closed
It is for one kind in series, parallel, series-parallel connection.It is preferred that, large value capacitor is employed in the present invention carries out dc bus filter
Ripple and energy storage.
Described load/main hair (8) includes：Electrical load (81) and main generator (82).Specifically, when described nothing
The operation control system of brush exchange compound rectifier excitation brshless DC motor is used only as generator operation power load into load/main hair (8)
When carrying (81) power supply, due to using three-phase and four-line line system electric loading more.Therefore output transformer (7) is connected using three-phase and four-line circuit
Connect the electrical load (81) in load/main hair (8).Specifically, when the operation control of brushless ac compound rectifier excitation brshless DC motor
System processed should be used as generator operation main generator (82) in for load/main hair (8) and power, and make to bear again as electric operation
Carry/it is main hair (8) in main generator (82) to brushless ac compound rectifier excitation brshless DC motor (1) power when, due to main generator
(82) only need to use three-phase line, therefore output transformer (7) connects the main generating in load/main hair (8) using three-phase line
Machine (82).Particularly, when main generator uses permagnetic synchronous motor, it is particularly suitable for use in being used as motor running, again can be with
It is used as generator operation.
Described sinusoidal filter (6) is three-phase filter structure, is three-phase filter inductance L in its input, in its output
End is parallel with three groups of RC capacitance-resistances in parallel of star-like connection or three groups of RC capacitance-resistances in parallel of angle-style connection.When described brushless ac is multiple
Close excitation brushless direct current generator operation control system be used only as generator operation to electrical load (81) power when, sinusoidal filter
(6) a large amount of higher harmonic components can be filtered out during the PWM ripples for controlling inverting part (51) output entirely are filtered into sine wave.When
The operation control system of described brushless ac compound rectifier excitation brshless DC motor is used as electric operation, and by main generator (82)
During power supply, inversion rectification part (52) is operated in rectification state, and inversion rectification part (52) and the three-phase in sinusoidal filter (6)
Filter inductance L collectively forms three-phase PFC and carries out PWM rectifications.
Described output transformer (7) includes：Phase three-wire three primary side is to phase three-wire three secondary side and phase three-wire three one
Secondary side is to two kinds of structures of three-phase and four-line secondary side.When load/main hair (8) is using electrical load (81), phase three-wire three primary side
For three-phase input end, three-phase and four-line secondary side is output end and connects electrical load (81) by three-phase and four-line；When load/main hair
(8) when using main generator (82), phase three-wire three primary side is three-phase input end, and phase three-wire three secondary side is output end and passed through
Three-phase line connection main generator (82).
The present invention operation control system superiority and have technical effect that：
1st, operation control system of the invention employs AC frequency conversion excitation division and provides AC frequency conversion excitation for motor, compares
Brushless excitation synchronous motor exchanges the DC excitation at end, solve excitation efficiency reduction that motor exists at the low rotational speed or
The problem of excitation fails and power density is relatively low, it is ensured that more than zero-speed can generate electricity, expand the working range of electricity generation system；
2nd, operation control system of the invention is more using 6,12,18 etc. according to the multi-phase excitation of motor stator power winding
Impulse commutation, reduces harmonic wave, can cancel PWM rectifications, reduces system cost, improves the efficiency of whole service system；
3rd, operation control system of the invention uses four-quadrant commutation inversion scheme in rectification and inversion link, can make whole
System realizes switching of the runtime from generating state to motoring condition on the basis of system architecture is not changed；
4th, operation control system of the invention obtains more high density using brushless ac compound rectifier excitation brushless dc function
Power output, can solve the problem that conventional motor exciting current is larger, operation power and efficiency is low, excitation loss is higher, power consumption, steady
The problems such as qualitative poor, poor reliability；
5th, operation control system of the invention has position in the position test side of brushless ac compound rectifier excitation brshless DC motor
Put detection unit collection motor rotor position signal and provide it to control unit.And motor is adopted on the rotor of power winding terminal
With D.C. magnetic field and permanent magnetic field compound rectifier excitation, it is easier to realize to motor under various operating modes compared to AC induction motor
Accurate control；
6th, the present invention combines the advantage of synchronous motor and direct current generator and solves that synchronous motor power is smaller, and cost is high and rises
Dynamic difficulty；The problem of asynchronous machine efficiency and relatively low power density；There is provided a kind of brushless straight suitable for brushless ac compound rectifier excitation
Flow the operation control system of motor.
Brief description of the drawings
Embodiments of the invention are described further below in conjunction with the accompanying drawings.
Fig. 1 is the principle assumption diagram of operation control system the 1st of the present invention；
Fig. 2 is the principle assumption diagram of operation control system the 2nd of the present invention；
Fig. 3 is the principle assumption diagram of operation control system the 3rd of the present invention；
Fig. 4 is the principle assumption diagram of operation control system the 4th of the present invention；
Fig. 5 is that operation control system the 1st of the present invention implements illustration；
Fig. 6 is that operation control system the 2nd of the present invention implements illustration；
Fig. 7 is that operation control system the 3rd of the present invention implements illustration；
Fig. 8 is that operation control system the 4th of the present invention implements illustration；
Fig. 9 is that operation control system the 5th of the present invention implements illustration；
Figure 10 is that operation control system the 6th of the present invention implements illustration；
Figure 11 implements illustration for the operation control system of existing DC excitation alternating current generator；
Figure 12 is the principle assumption diagram of brushless ac compound rectifier excitation brshless DC motor of the present invention.
Label declaration
Runtime part of the present invention：
Brushless ac compound rectifier excitation brshless DC motor (1)；Direct current reactor (2)；Rectification part (3)；PWM rectification parts
(31)；Full-bridge rectification portion (32)；Commutation inversion portion (33)；Energy storage part (4)；Inverting part (5)；Full control inverting part (51)；Inversion is whole
Stream portion (52)；Sinusoidal filter (6)；Export transformer (7)；Load/main hair (8)；Electrical load (81)；Main generator (82)；
AC frequency conversion excitation division (9)；Control unit (10)；Position detection unit (11).
The runtime part of existing DC excitation alternating current generator：
DC excitation alternating current generator (16)；DC excitation unit (91).
Motor part of the present invention：
Stator excitation winding (12)；Rotor (13)；Stator power winding (14)；Power winding terminal (15)；Rotor is encouraged
Magnetic winding (131)；Rotating rectifier (132)；Rotor power Energizing unit (133)；Protection location (134)；Direct current winding
(1331)；Permanent magnet (1332)；
Embodiment
Fig. 1 is the 1st principle assumption diagram of operation control system of the present invention.In present principles structure chart, brushless ac is compound to encourage
Magnetic brshless DC motor 1 carries out generator operation as generator machine.Wherein, brushless ac compound rectifier excitation brshless DC motor (1)
Stator power winding (14) inputs of rectification part (3), the positive and negative dc bus of rectification part (3) are connected to by three-phase line
Output end is connected to the positive and negative dc bus input of inverting part (5), and between rectification part (3) and inverting part (5) just
Energy storage part (4) is parallel with negative dc bus.The output end of inverting part (5) is connected to sinusoidal filter (6) by three-phase line
Input, the output end of sinusoidal filter (6) is connected to the three-phase input end of output transformer (7) by three-phase line.It is defeated
Go out transformer (7) and load/main hair (8) is connected to by three-phase and four-line circuit or three-phase line.The stator excitation winding of motor
(12) three-phase output end of the AC frequency conversion excitation division (9) of runtime, AC frequency conversion excitation division are connected to by three-phase line
(9) positive and negative dc bus input is parallel on the positive and negative dc bus between energy storage part (4) and inverting part (5).Control unit
(10) it is that inverting part (5) and AC frequency conversion excitation division (9) provide control signal.
It is direct current that stator power winding (14), which sends three-phase alternating current by rectification part (3) rectification, then by positive and negative straight
Stream bus connection energy storage part (4) is filtered, energy storage, and filtered direct current is conveyed into inverting part (5) inversion for frequency
Controllable alternating current, is conveyed to sinusoidal filter by the PWM ripples that inverting part (5) is exported by three-phase line and is filtered into sine wave,
Filter out a large amount of higher harmonic components simultaneously.Filtered alternating current is by exporting after transformer (7) transformation as load/main hair (8)
Power supply.At the same time, it is three phase variable frequency alternating current to obtain DC inverter from positive and negative dc bus by AC frequency conversion excitation division (9)
Stream, and it is supplied to the stator excitation winding (12) of brushless ac compound rectifier excitation brshless DC motor (1) to produce alternating magnetic field.Control
Portion (10) is that inverting part (5) and AC frequency conversion excitation division (9) provide control signal in the process.
Fig. 2 is the 2nd principle assumption diagram of operation control system of the present invention.In present principles structure chart, brushless ac is compound to encourage
Magnetic brshless DC motor 1 carries out generator operation as generator machine.Wherein, brushless ac compound rectifier excitation brshless DC motor (1)
Stator power winding (14) use six phase windings, and be divided into two groups 120 ° symmetrical three-phase star windings.Wherein first group three
Phase star winding connects the input of first group of rectification part (3), the positive and negative dc bus output of rectification part (3) by three-phase line
End is connected to the positive and negative dc bus input of inverting part (5), and the positive and negative direct current between rectification part (3) and inverting part (5) is female
Energy storage part (4), and the positive direct-current between rectification part (3) dc bus positive output end and energy storage part (4) positive pole are parallel with line
First group of direct current reactor (2) is in series with bus.
Second group of three-phase star winding of stator power winding (14) passes through three-phase line second group of rectification part (3) of connection
Energy storage part (4), rectification part (3) are parallel with input, the positive and negative dc bus between this group of rectification part (3) and inverting part (5)
Positive and negative dc bus output end be connected to the positive and negative dc bus input of inverting part (5), this group of rectification part (3) it is positive and negative straight
Stream bus output end is parallel to the both positive and negative polarity of energy storage part (4), and in this group of rectification part (3) dc bus positive output end and energy storage part
(4) second group of direct current reactor (2) is in series with the positive direct-current bus between positive pole.The output end of inverting part (5) passes through three-phase
Connection is to the input of sinusoidal filter (6), and the output end of sinusoidal filter (6) is connected to export by three-phase line to be become
The three-phase input end of depressor (7).Output transformer (7) is connected to load/main hair by three-phase and four-line circuit or three-phase line
(8).The stator excitation winding (12) of motor is connected to the three-phase of the AC frequency conversion excitation division (9) of runtime by three-phase line
Output end, the positive and negative dc bus input of AC frequency conversion excitation division (9) is parallel between energy storage part (4) and inverting part (5)
On positive and negative dc bus.Control unit (10) is that inverting part (5) and AC frequency conversion excitation division (9) provide control signal.
The difference of 2nd principle assumption diagram and the 1st principle assumption diagram is brushless ac compound rectifier excitation brshless DC motor (1)
Stator power winding (14) use six phase windings, and be divided into two groups 120 ° symmetrical three-phase star windings.Two groups of three-phase stars
Winding sends two groups of three-phase alternating currents and is delivered to two groups of rectification part (3) rectifications by three-phase line for direct current respectively, then by two
Group direct current is connected in parallel to positive and negative dc bus.But it is due to that the output currents of two groups of rectification parts (4) has unbalanced situation, because
This is handled before two groups of direct currents are connected in parallel into positive and negative dc bus, it is necessary to which two groups of direct currents are carried out with pressures, therefore the
Direct current reactor (2) is in series with the output positive direct-current bus of two groups of rectification parts (3) in two principle assumption diagrams, by pressing
After processing, filtered direct current is conveyed to inversion by the direct current after two groups of rectifications by energy storage part (4) filtering, energy storage
Portion (5) inversion is the controllable alternating current of frequency, and the PWM that sinusoidal filter exports inverting part (5) is conveyed to by three-phase line
Ripple is filtered into sine wave, and the PWM ripples of output are filtered into sine wave, while filtering out a large amount of higher harmonic components.Filtered exchange
Electricity is by exporting after transformer (7) transformation as load/main hair (8) power supply.At the same time, by AC frequency conversion excitation division (9) from just
It is three phase variable frequency alternating current that negative dc bus, which obtains DC inverter, and is supplied to brushless ac compound rectifier excitation brushless dc
The stator excitation winding (12) of machine (1) produces alternating magnetic field.Control unit (10) is inverting part (5) and AC frequency conversion in the process
Excitation division (9) provides control signal.
Fig. 3 is the 3rd principle assumption diagram of operation control system of the present invention.3rd principle assumption diagram and the 1st principle assumption diagram
Difference is when PWM rectification part (31) of the rectification part (3) using three phase full bridge IGBT full-controlled rectifiers.Because control unit (10) is
PWM rectification parts (31) need to refer to motor rotor position information when providing control signal, therefore add position detection unit
(11).There is position detection unit (11) to gather motor in the position test side of brushless ac compound rectifier excitation brshless DC motor (1)
Rotor-position signal simultaneously provides it to control unit (10).
Fig. 4 is the 4th principle assumption diagram of operation control system of the present invention.4th principle assumption diagram and the 2nd principle assumption diagram
Difference is when PWM rectification part (31) of two groups of rectification parts (3) using three phase full bridge IGBT full-controlled rectifiers.Due to control unit
(10) motor rotor position information is needed to refer to when providing control signal for two groups of PWM rectification parts (31), therefore adds position
Detection unit (11).There is position detection unit (11) in the position test side of brushless ac compound rectifier excitation brshless DC motor (1)
Collection motor rotor position signal simultaneously provides it to control unit (10).
Fig. 5 is the figure of operation control system (1) embodiment of the present invention.In the present embodiment, brushless ac compound rectifier excitation
Brshless DC motor (1) carries out generator operation as generator machine.
The stator power winding (14) of brushless ac compound rectifier excitation brshless DC motor (1), will using three-phase star winding
The three-phase alternating current sent delivers to full-bridge rectification portion (32), and the full-bridge rectification portion (3) 2 carries out three-phase (6) pulse using diode
Uncontrollable rectification.
Full-bridge rectification portion (32) by three-phase alternating current electric rectification be direct current after, be conveyed to by positive and negative dc bus control entirely it is inverse
(51) carry out three phase full bridge IGBT and control inversion entirely.DC inverter on positive and negative dc bus is three-phase by full control inverting part (51)
Alternating current is conveyed to sinusoidal filter (6), and sinusoidal filter (6) filters into the SPWM modulating waves for controlling inverting part (51) output entirely near
Like sinusoidal voltage waveform, to reduce the full control inverting part (high-frequency harmonic of 51 outputs, so as to effectively suppress high-frequency loss and dv/
Dt Radio frequency interferences.Filtered alternating current is conveyed to the primary side of output transformer (7) by sinusoidal filter, exports transformer
(7) effect such as buck/boost, matching impedance, security isolation is primarily served.Output transformer (7) secondary side is connected by three-phase and four-line
Electrical load (81) is connected to, 380V and 220V power supplys needed for providing the user load.Control unit (10) is full control inverting part (51 Hes
AC frequency conversion excitation division (9) provides the pwm signal of control IGBT break-makes.
AC frequency conversion excitation division 9 equally carries out three phase full bridge using IGBT and controls inversion entirely.AC frequency conversion excitation division (9) is just
Negative DC terminal is from power taking on positive and negative dc bus, by by the three-phase alternating current that DC inverter is voltage x current frequency-adjustable,
The stator excitation winding (12) of brushless ac compound rectifier excitation brshless DC motor (1) is supplied to, variable frequency excitation is carried out, so as to expand
The range of operation of conventional DC excitation electromotor, and solve the DC exciting motor low and easy excitation mistake of excitation efficiency at the low rotational speed
The problem of effect.
Fig. 6 is the figure of the embodiment of operation control system the 2nd of the present invention.In the present embodiment, brushless ac compound rectifier excitation without
Brushless motor (1) carries out generator operation as generator.
The stator power winding (14) of brushless ac compound rectifier excitation brshless DC motor (1) will be sent out using six phase star windings
The six cross streams electricity gone out, is divided into two groups 120 ° symmetrical three-phase alternating currents and is conveyed to two groups of full-bridge rectification portions (32), two groups respectively
Full-bridge rectification portion (32) all carries out the uncontrollable rectification of the pulse of three-phase 6 using diode.First group of three-phase star winding passes through three-phase
The three-phase input end in connection full-bridge rectification portion (32), it is whole that second group of three-phase star winding connects full-bridge also by three-phase line
The three-phase input end in stream portion (32)；The positive negative DC terminal in full-bridge rectification portion (32) is connected in parallel to energy storage part by positive and negative dc bus
(4) direct current reactor is in series with positive and negative terminal, and positive direct-current bus between full-bridge rectification portion (32) and energy storage part (4)
(2)；The positive negative DC terminal in full-bridge rectification portion (32) is connected in parallel to the positive and negative terminal of energy storage part (4) also by positive and negative dc bus, and
Direct current reactor (2) is equally in series with positive direct-current bus between full-bridge rectification portion (32) and energy storage part (4)；Due to two groups it is complete
The positive and negative dc bus parallel connection of output of bridge rectification part (32) causes both to there is the problem of tube voltage drop differs by rectifier cell, so needing
Each series direct current reactor is connected in parallel to before energy storage part (4) in the output positive direct-current bus of two groups of full-bridge rectification portions (32)
(2) pressed.
Wherein energy storage part (4) plays a part of energy storage, filtering, and the positive and negative terminal of energy storage part (4) is connected by positive and negative dc bus
Full control inverting part (51) is connected to, inverting part (51) is controlled full inversion is controlled using IGBT progress three phase full bridges entirely.Full control inverting part (51)
It is that three-phase alternating current is conveyed to sinusoidal filter (6) by the DC inverter on positive and negative dc bus, sinusoidal filter (6) will be complete
The SPWM modulating waves of control inverting part (51) output filter into the voltage waveform of near sinusoidal to reduce full control inverting part (51) output
High-frequency harmonic, so as to effectively suppress high-frequency loss and dv/dt Radio frequency interferences.Filtered alternating current is conveyed to by sinusoidal filter
The primary side of transformer (7) is exported, output transformer (7) primarily serves the effect such as buck/boost, matching impedance, security isolation.
Output transformer (7) secondary side electrical load (81) is connected to by three-phase and four-line, provide the user load needed for 380V and
220V power supplys.Control unit (10) provides the PWM letters of control IGBT break-makes for full control inverting part (51) and AC frequency conversion excitation division (9)
Number.
AC frequency conversion excitation division (9) equally carries out three phase full bridge using IGBT and controls inversion entirely.And provided by control unit (10)
Control the pwm signal of IGBT break-makes.The positive negative DC terminal of AC frequency conversion excitation division (9) passes through from power taking on positive and negative dc bus
By DC inverter, for the three-phase alternating current of voltage x current frequency-adjustable, there is provided give brushless ac compound rectifier excitation brshless DC motor
(1) stator excitation winding (12), carries out variable frequency excitation, so as to expand the range of operation of conventional DC excitation electromotor, and solves
DC exciting motor is the problem of the low and easy excitation of excitation efficiency fails at the low rotational speed.
Fig. 7 is the figure of the embodiment of operation control system the 3rd of the present invention.In the present embodiment, brushless ac compound rectifier excitation without
Brushless motor (1) carries out generator operation as generator.
The stator power winding (14) of brushless ac compound rectifier excitation brshless DC motor (1), will using three-phase star winding
The three-phase alternating current sent delivers to PWM rectification parts (31).PWM rectification parts (31) build three phase full bridge as depicted using IGBT
Structure, one diode of reverse parallel connection, two poles between the colelctor electrode C poles and emitter E pole of same each IGBT power switch pipes
Pipe is by E poles to C poles one-way conduction.
It is main that the pulse full-bridge full-controlled rectifier of three-phase 6, control are carried out using IGBT when PWM rectification parts (31) are using PWM rectifications
Portion (10) is the pwm signal that PWM rectification parts (31) and full control inverting part (51) provide control IGBT break-makes.It is reverse with each IGBT
Diode in parallel in the process, afterflow effect is played when IGBT power switch pipes are turned off.
The three-phase alternating current electric rectification that brushless ac compound rectifier excitation brshless DC motor (1) is sent is by PWM rectification parts (31)
Direct current is conveyed to energy storage part (4) in parallel on full control inverting part (51), positive and negative dc bus by positive and negative dc bus and played
Energy storage, the effect of filtering, control inverting part (51) and equally control inversion entirely using IGBT progress three phase full bridges entirely.Full control inverting part (51)
It is that three-phase alternating current is conveyed to sinusoidal filter (6) by the DC inverter on positive and negative dc bus, sinusoidal filter (6) will be complete
The SPWM modulating waves of control inverting part (51) output filter into the voltage waveform of near sinusoidal to reduce full control inverting part (51) output
High-frequency harmonic, so as to effectively suppress high-frequency loss and dv/dt Radio frequency interferences.Filtered alternating current is conveyed to by sinusoidal filter
The primary side of transformer (7) is exported, output transformer (7) primarily serves the effect such as buck/boost, matching impedance, security isolation.
Output transformer (7) secondary side electrical load (81) is connected to by three-phase and four-line, provide the user load needed for 380V and
220V power supplys.Control unit (10) exports PWM to inversion rectification part (52), inversion rectification part (52) and AC frequency conversion excitation division (9)
Control signal.Position detection unit (11) is that control unit (10) provides turning for brushless ac compound rectifier excitation brshless DC motor (1)
Sub- position signalling.
AC frequency conversion excitation division (9) equally carries out three phase full bridge using IGBT and controls inversion entirely.AC frequency conversion excitation division (9)
Positive negative DC terminal is from power taking on positive and negative dc bus, by by three-phase alternating current that DC inverter is voltage x current frequency-adjustable
Electricity carries out variable frequency excitation there is provided the stator excitation winding (12) to brushless ac compound rectifier excitation brshless DC motor (1), so that
Expand the range of operation of conventional DC excitation electromotor, and solve DC exciting motor excitation efficiency is low and easily encourage at the low rotational speed
The problem of magnetic fails.
Fig. 8 is the figure of the embodiment of operation control system the 4th of the present invention.In the present embodiment, in operation control system and Fig. 7
Embodiment 3 is essentially identical.Brushless ac compound rectifier excitation brshless DC motor (1) can both be sent out such as embodiment 3 as generator
Electricity operation, is also used as motor and carries out electric operation.
But from unlike the embodiment 3 in Fig. 7, in embodiment 4, when system power from brushless ac compound rectifier excitation without
Brushless motor (1) flows to main generator (82), and commutation inversion portion (33) are operated in PWM rectification states, inversion rectification part (52)
It is operated in full control inverter mode.When system power from main generator (82) flows to brushless ac compound rectifier excitation brshless DC motor
(1) when, commutation inversion portion (33) are operated in full control inverter mode, and inversion rectification part (52) is operated in PWM rectification states.Therefore it is
The rectifying part and Converting Unit in embodiment 3 are distinguished over, the three phase full bridge IGBT at two is particularly respectively defined as rectification
Inverting part (33) and inversion rectification part (52).
Fig. 9 is the figure of the embodiment of operation control system the 5th of the present invention.In the present embodiment, in the present embodiment, brushless ac
Compound rectifier excitation brshless DC motor (1) carries out generator operation as generator.
In Fig. 9, the stator power winding (14) of brushless ac compound rectifier excitation brshless DC motor (1) using six it is mutually star-like around
Group, and it is divided into the rectification part that the two groups 120 ° symmetrical external two groups of three-phase lines of three-phase star winding are each connected to, first group
Three-phase star winding connects the three-phase input end of one group of PWM rectification part (31), second group of three-phase star winding by three-phase line
The three-phase input end of another group of PWM rectification part (31) is connected by three-phase line；The positive and negative direct current of first group of PWM rectification part (31)
End is connected in parallel to the positive and negative terminal of energy storage part (4) by positive and negative dc bus, and between PWM rectification parts (31) and energy storage part (4)
Direct current reactor (2) is in series with positive direct-current bus；The positive negative DC terminal of second group of PWM rectification part (31) is also by positive and negative direct current
Bus is connected in parallel to the positive and negative terminal of energy storage part (4), and same on the positive direct-current bus between PWM rectification parts (31) and energy storage part (4)
Sample is in series with direct current reactor (2)；The positive and negative terminal of energy storage part (4) is connected to full control inverting part (51) further through positive and negative dc bus
Positive negative DC terminal, the three-phase output end that inverting part (51) is controlled entirely is connected to the three-phases of sinusoidal filter (6) by three-phase line
Input, the three-phase output end of sinusoidal filter (6) is connected to the three-phase input end of output transformer (7) by three-phase line,
The three-phase output end of transformer (7) is connected to main generator (82) by three-phase line.
The stator excitation winding (12) of brushless ac compound rectifier excitation brshless DC motor (1) is connected to friendship by three-phase line
The three-phase output end of rheology frequency excitation division (9), the positive negative DC terminal of AC frequency conversion excitation division (9) is connected in parallel on positive and negative dc bus
The two ends of energy storage part (4).Control unit (10) is to PWM rectification parts (31), control inverting part (51) and AC frequency conversion excitation division (9) are defeated entirely
Go out pwm control signal.Position detection unit (11) is that control unit (10) provides brushless ac compound rectifier excitation brshless DC motor (1)
Rotor-position signal.
Figure 10 is the figure of the embodiment of operation control system the 6th of the present invention.In the present embodiment, operation control system and Fig. 9
Middle embodiment 5 is essentially identical.But brushless ac compound rectifier excitation brshless DC motor (1) is in addition to as generator, also conduct
Motor carries out electric operation.
But from unlike the embodiment 5 in Fig. 9, in embodiment 6, when system power from brushless ac compound rectifier excitation without
When brushless motor (1) flows to main generator (82), two groups of commutation inversion portions (33) are operated in PWM rectification states, inversion rectification
Portion (52) is operated in full control inverter mode.When system power from main generator (82) flows to brushless ac compound rectifier excitation brushless direct-current
During motor (1), commutation inversion portion (33) are operated in full control inverter mode, and inversion rectification part (52) is operated in PWM rectification states.Cause
This is to distinguish over the rectifying part and Converting Unit in embodiment 5, is particularly respectively defined as the three phase full bridge IGBT at three
Commutation inversion portion (33) and inversion rectification part (52).
To sum up, it can find out from the main circuit diagram of above example 5 and embodiment 3, the area of embodiment 5 and embodiment 3
It is not that the stator power winding (14) of brushless ac compound rectifier excitation brshless DC motor (1) employs 6 phase star windings, so
One group of commutation inversion portion (33) is added, and adds two groups of direct current reactors (2) of stream.But again integrated embodiment 3,
Embodiment 4, embodiment 5, embodiment 6, it can be found that when brushless ac compound rectifier excitation brshless DC motor (1) is changed by generator
For motor, when load motor by motor is converted to generator, system main circuit can realize energy in this four embodiments
Two-way flow.Only needed on output transformer (7) according to electrical load (81), this is to provide the user 220V output electricity
The need for power, three-phase four-wire system and three-phase three-wire system are employed.Principle on whole system main circuit does not influence.
Due to commutation inversion portion (33) and inversion rectification part (51) in circuit in embodiment 5, set back-to-back, can be with
Bi-directional energy flow is realized, so the embodiment can be applied as the typical case generated electricity and electricity is pushed away with power field in ship shaft.
And inversion rectification part (51) has input current sinusoidal, harmonic content is low, and power factor is high and bi-directional energy flow, small volume and
Lightweight the features such as, in power factor compensation, electric energy feedback, the field such as active power filtering also has a wide range of applications.
Figure 11 is that the operation control system of other DC excitation alternating current generators implements illustration.In the embodiment, direct current is encouraged
The three-phase generation end of magnetic alternating current generator (16) is connected to the input of PWM rectification parts (31), PWM rectification parts by three-phase line
(31) it is that direct current is connected to inverting part (5) by positive and negative dc bus by the AC rectification of input, and it is female in positive and negative direct current
Energy storage part (4) is parallel with line and plays energy storage, filter action.Inverting part 5 by DC inverter be frequency-adjustable three-phase alternating current
Electricity by three-phase line export to output transformer (7), then by three-phase and four-line be electrical load offer needed for electric current.Direct current is encouraged
The DC excitation end of magnetic alternating current generator (16) is by the DC output end of positive and negative connection to DC excitation unit (91), directly
The direct-flow input end of stream Energizing unit (91) passes through positive and negative straight between positive and negative lines in parallel to energy storage part (4) and inverting part (5)
Flow on bus.During this, control unit (10) is the control signal that PWM rectification parts (31) and inverting part (5) provide TGBT break-makes.
Figure 12 is the principle assumption diagram of brushless ac compound rectifier excitation brshless DC motor of the present invention.The brushless ac is compound to encourage
Magnetic brshless DC motor (1), it includes stator excitation winding (12), and rotor (13), stator power winding (14) is described
Rotor (13) includes rotor field coil (131), rotating rectifier (132), rotor power Energizing unit (133), described
Rotor power Energizing unit (133) include direct current winding (1331) and permanent magnet (1332), direct current winding (1331) is attached to be wound on
On permanent magnet (1332) and both carry out compound rectifier excitations.
Further, described stator excitation winding (12) uses AC frequency conversion excitation, by stator excitation winding
(12) input frequency-changing AC electricity produces AC frequency conversion induction field, makes the rotor field coil (131) in rotor (13)
Alternating current is produced, and is direct current by rotating rectifier (132) rectification, the direct current is rotor power Energizing unit (133)
In direct current winding (1331) provide electric current produce DC electromagnetic field.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention
Enclose and be defined, on the premise of design spirit of the present invention is not departed from, technical side of the those of ordinary skill in the art to the present invention
In various modifications and improvement that case is made, the protection domain that claims of the present invention determination all should be fallen into.
Claims (6)
1. the operation control system of brushless ac compound rectifier excitation brshless DC motor, it is characterised in that：It includes brushless ac and answered
Close excitation brushless direct current generator (1), rectification part (3), energy storage part (4), inverting part (5), sinusoidal filter (6), output transformer
(7), load/main generator (8), AC frequency conversion excitation division (9), control unit (10)；Described brushless ac compound rectifier excitation is brushless
Direct current generator (1) includes：Stator excitation winding (12), rotor (13), stator power winding (14)；Described motor turns
Sub (13) include rotor field coil (131), rotating rectifier (132), rotor power Energizing unit (133), described rotor
Power Energizing unit (133) includes direct current winding (1331) and permanent magnet (1332), and direct current winding (1331) is attached to be wound on permanent magnet
(1332) on and both carry out compound rectifier excitations；The wherein stator power winding (14) of brushless ac compound rectifier excitation brshless DC motor
The input of rectification part is connected to by three-phase line, the positive and negative dc bus output end of rectification part (3) is connected to inverting part (5)
Positive and negative dc bus input, and be parallel with energy storage on positive and negative dc bus between rectification part (3) and inverting part (5)
Portion (4), the output end of inverting part (5) is connected to the input of sinusoidal filter (6), sinusoidal filter (6) by three-phase line
Output end by three-phase line be connected to output transformer (7) three-phase input end, output transformer (7) pass through three-phase and four-line
Circuit or three-phase line are connected to load/main generator (8), and stator excitation winding (12) is connected to exchange by three-phase line and become
The three-phase output end of frequency excitation division (9), the positive and negative dc bus input of AC frequency conversion excitation division (9) is parallel to energy storage part (4)
On positive and negative dc bus between inverting part (5), control unit (10) is that inverting part (5) and AC frequency conversion excitation division (9) are provided
Control signal.
2. operation control system according to claim 1, it is characterised in that：The operation control system also includes direct current reactance
Device (2)；When the brushless ac compound rectifier excitation brshless DC motor (1) in system uses six phases on its stator power winding (14)
Winding, and when being divided into two groups 120 ° symmetrical three-phase star windings, system carries out six impulse commutations using two groups of rectification parts (3)；
Two groups of direct current reactors (2) are connected between the dc bus output plus terminal and energy storage part (4) positive pole of two groups of rectification parts (3) respectively
The output voltage of two groups of rectification parts (3) is pressed；Wherein first group three-phase star winding connects first by three-phase line
The input of group rectification part (3), the positive and negative dc bus output end of first group of rectification part (3) is connected to the positive and negative of inverting part (5)
Energy storage part is parallel with dc bus input, the positive and negative dc bus between first group of rectification part (3) and inverting part (5)
(4), and on the positive direct-current bus between first group of rectification part (3) dc bus positive output end and energy storage part (4) positive pole connect
There is first group of direct current reactor (2)；Second group of three-phase star winding of stator power winding (14) passes through three-phase line connection the
Storage is parallel with the input of two groups of rectification parts (3), the positive and negative dc bus between second group of rectification part (3) and inverting part (5)
Energy portion (4), the positive and negative dc bus output end of second group of rectification part (3) is connected to the positive and negative dc bus input of inverting part (5)
End, the positive and negative dc bus output end of second group of rectification part (3) is parallel to the both positive and negative polarity of energy storage part (4), and in second group of rectification
Second group of direct current reactor is in series with positive direct-current bus between portion (3) dc bus positive output end and energy storage part (4) positive pole
(2)；The output end of inverting part (5) is connected to the input of sinusoidal filter (6) by three-phase line, sinusoidal filter (6)
Output end is connected to the three-phase input end of output transformer (7) by three-phase line；Output transformer (7) passes through three-phase and four-line line
Road or three-phase line are connected to load/main generator (8)；The stator power winding (14) of motor is connected to fortune by three-phase line
The three-phase output end of the AC frequency conversion excitation division (9) of row system, the positive and negative dc bus input of AC frequency conversion excitation division (9) is simultaneously
It is linked on the positive and negative dc bus between energy storage part (4) and inverting part (5)；Control unit (10) is inverting part (5) and AC frequency conversion
Excitation division (9) provides control signal.
3. operation control system according to claim 1 or 2, it is characterised in that：The operation control system also includes position
Detection unit (11), it is located at the position test side of brushless ac compound rectifier excitation brshless DC motor (1), and for gathering motor
Rotor-position signal simultaneously provides it to control unit (10).
4. operation control system according to claim 3, it is characterised in that：AC frequency conversion excitation division (9) uses three-phase
IGBT controls full bridge structure entirely, and make-and-break signal is provided for each IGBT by control unit (10), wherein each IGBT C poles and E poles
Between one fly-wheel diode of reverse parallel connection, fly-wheel diode is by E poles to C poles one-way conduction, in the shut-off of IGBT power switch pipes
When play afterflow effect, the positive and negative direct-flow input end of AC frequency conversion excitation division (9) is connected to positive and negative dc bus, and from positive and negative straight
Flow power taking on bus and, as current source, full-bridge inverting is controlled for AC frequency conversion exciting current by three-phase IGBT entirely, AC frequency conversion
The three-phase output end of excitation division (9) is connected to the stator of brushless ac compound rectifier excitation brshless DC motor (1) by three-phase line
Exciting Windings for Transverse Differential Protection (12) produces AC frequency conversion excitation induction field.
5. operation control system according to claim 1, it is characterised in that：Rectification part (3) includes three phase full bridge diode
Can not control rectifying circuit, three phase full bridge IGCT half-controlled rectifier circuit, three phase full bridge IGBT half-controlled rectifier circuits, three phase full bridge crystalline substance
One or more in brake tube all controlled rectifier circuit, three phase full bridge IGBT all controlled rectifier circuits；Wherein three phase full bridge IGBT is controlled entirely
Rectification circuit had both been operated in inverter mode and has carried out full control inversion, or was operated in rectification state progress PWM rectifications.
6. operation control system according to claim 5, it is characterised in that：Inverting part (5) is three phase full bridge IGBT, both work
Make to carry out full control inversion in inverter mode, or be operated in rectification state progress PWM rectifications；Control unit (10) is inverting part
(5), AC frequency conversion excitation division (9), rectification part (3) provide control signal；Energy storage part (4) includes：The battery pack of DC/DC conversion,
One or more in super capacitor, high-energy capacitor, electrochemical capacitor, annexation is one kind in series, parallel, series-parallel connection；It is negative
Load/main generator (8) includes：Electrical load (81) and main generator (82)；Sinusoidal filter (6) is three-phase filter structure,
Its input is three-phase filter inductance L, what the three groups of RC capacitance-resistances in parallel or angle-style for being parallel with star-like connection in its output end were connected
Three groups of RC capacitance-resistances in parallel；Output transformer (7) includes：Phase three-wire three primary side to phase three-wire three secondary side and phase three-wire three once
Side is to two kinds of structures of three-phase and four-line secondary side；When load/main generator (8) is using electrical load (81), phase three-wire three is once
Side is three-phase input end, and three-phase and four-line secondary side is output end and connects electrical load (81) by three-phase and four-line；As load/master
When generator (8) is using main generator (82), phase three-wire three primary side is three-phase input end, and phase three-wire three secondary side is output end
And main generator (82) is connected by three-phase line.
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| CN106787791A (en) * | 2016-12-14 | 2017-05-31 | 迅昌电气（上海）有限公司 | A kind of constant frequency and constant voltage band power storage electric power system peculiar to vessel |
| CN112737469A (en) * | 2020-12-31 | 2021-04-30 | 徐州中矿大传动与自动化有限公司 | Electrically excited synchronous motor variable frequency driving device and control method |
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| US4032835A (en) * | 1976-03-15 | 1977-06-28 | Westinghouse Electric Corporation | Brushless exciter supplemental ceiling excitation system |
| JP3797972B2 (en) * | 2002-11-29 | 2006-07-19 | 三菱電機株式会社 | Generator motor system for vehicles |
| CN201167296Y (en) * | 2007-12-14 | 2008-12-17 | 张勇 | Directly-drive type ac excitation wind power generator system |
| CN202111599U (en) * | 2010-11-08 | 2012-01-11 | 华北电力大学 | AC excitation control system for paratactic structure hybrid excitation synchronous generator |
| CN104104202B (en) * | 2014-07-24 | 2017-11-14 | 北京索德电气工业有限公司 | Brushless ac compound rectifier excitation brshless DC motor |
| CN204334399U (en) * | 2014-11-19 | 2015-05-13 | 北京索德电气工业有限公司 | The operation control system of brushless ac compound rectifier excitation brshless DC motor |
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Denomination of invention: Operation control system of brushless AC composite excitation brushless DC motor Effective date of registration: 20220221 Granted publication date: 20171003 Pledgee: Beijing first financing Company limited by guarantee Pledgor: BEIJING SWORD ELECTRIC INDUSTRIAL Co.,Ltd. Registration number: Y2022980001708 |
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Date of cancellation: 20230509 Granted publication date: 20171003 Pledgee: Beijing first financing Company limited by guarantee Pledgor: BEIJING SWORD ELECTRIC INDUSTRIAL Co.,Ltd. Registration number: Y2022980001708 |