CN102320250B - Matching and model selecting method of auxiliary power unit of electrically driven automobile - Google Patents
Matching and model selecting method of auxiliary power unit of electrically driven automobile Download PDFInfo
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- CN102320250B CN102320250B CN2011101881544A CN201110188154A CN102320250B CN 102320250 B CN102320250 B CN 102320250B CN 2011101881544 A CN2011101881544 A CN 2011101881544A CN 201110188154 A CN201110188154 A CN 201110188154A CN 102320250 B CN102320250 B CN 102320250B
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- primary mover
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- power unit
- auxiliary power
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
Abstract
The invention relates to a matching and model selecting method of an auxiliary power unit of an electrically driven automobile, which is characterized in that the method is based on the auxiliary power unit constructed by a prime motor, a permanent magnet synchronous generator and a three-phase uncontrolled rectifier. The method includes the following steps: first, determining the rated power of the prime motor and the generator according to the design requirements of the automobile; second, measuring the rotate speed and the torque range of the effective working area of the prime motor by testing after the rated power of the prime motor is determined; measuring the voltage range of a bus in the effective working area of the prime motor by testing and determining the rated rotate speed and the output torque of the generator; working out the voltage of the output rated line of the generator within the fluctuation range of the bus voltage; working out the range of the output current range of the auxiliary power unit on the basis of the output power and the bus voltage required by the system; and formulating a relation expression among the rotate speed, the voltage, the torque and the current of the generator, and thereby determining the parameters of the generator. The invention realizes the matching and the model selection of the auxiliary power unit by taking the prime motor as the control target, the control variables are simple and the cost of the system is lower.
Description
Technical field
The present invention relates to a kind of electric drive automobile power cell matching technique, especially a kind of coupling of electric drive automobile Auxiliary Power Unit and selection method.
Background technology
Electronlmobil is compared with traditional fuel-engined vehicle, has efficient high, and discharging is few, and noise is low, the characteristics that operating cost is low.But but there is the shortcoming that continual mileage is short, battery charges length consuming time.Stroke-increasing electric automobile is a kind of electric drive automobile of being furnished with auxiliary power unit, and namely take electrokinetic cell as main, primary mover, electrical generator and rectifier consist of the automobile that Auxiliary Power Unit provides auxiliary power.Its mode of operation can as required, work in pure electric drive mode or vehicle-mounted powering mode.
At present in the Research on configuration of Auxiliary Power Unit, mainly have following two kinds of technical schemes: scheme one consists of Auxiliary Power Unit for primary mover, electric excitation generator and uncontrollable rectifier, adopt control primary mover rotating speed and generator excitation to realize the work of Auxiliary Power Unit, but the electric excitation generator that adopts in this kind scheme often efficient is lower, has affected thus the efficient of whole Auxiliary Power Unit system.Scheme two is that primary mover, magneto alternator and PWM rectifier consist of Auxiliary Power Unit, adopt control primary mover rotating speed and generator torque to realize the work of Auxiliary Power Unit, but the complexity of controlling when the application of PWM rectifier has increased the cost of system and rectification in this kind scheme.
Summary of the invention
For solving the excellent problem of joining of electronlmobil Auxiliary Power Unit, the present invention proposes a kind of electric drive automobile Auxiliary Power Unit coupling and selection method based on primary mover, magneto alternator, the uncontrollable rectifier configuration of three-phase, can guarantee under the prerequisite of system high efficiency smooth operation, reduce control variable, save system cost.
For achieving the above object, the present invention takes following technical scheme: a kind of coupling of electric drive automobile Auxiliary Power Unit and selection method, it is characterized in that: on the Auxiliary Power Unit basis based on primary mover, magneto alternator, the uncontrollable rectifier structure of three-phase, 1) at first design the rating horsepower that desired Auxiliary Power Unit output power range determines primary mover and electrical generator according to automotive system; 2) behind definite primary mover rating horsepower, select suitable primary mover, record by experiment the range of speed of primary mover efficacious workaround; 3) on the basis of determining primary mover efficacious workaround range of speed, choose different SOC fluctuation ranges as the main reference foundation of scope range of the fluctuation of voltage according to different capabilities and battery types, the bus voltage fluctuation range when recording by experiment the electrokinetic cell normal operation; 4) after definite primary mover efficacious workaround scope and cell pressure fluctuation range, according to primary mover efficacious workaround range of speed, determine the rated speed of rotation of magneto alternator; 5) on bus voltage fluctuation range basis, by calculating the size of magneto alternator output rated line voltage; 6) according to primary mover efficacious workaround scope, determine the output torque range of magneto alternator; 7) on the basis of requirement of system design horsepower output size and bus voltage size, by calculating the scope of Auxiliary Power Unit outgoing current; 8) on the basis of level of torque corresponding to primary mover efficacious workaround, set up the relation of magneto alternator rotating speed-voltage, torque-current, thereby determine the parameter of permagnetic synchronous motor.
Described primary mover adopts a kind of in diesel motor, engine petrol, natural gas engine, the rotating combustion engine.
The present invention is owing to taking above technical scheme, and it has the following advantages: the present invention sets up the primary mover efficacious workaround by test under the prerequisite of determining the desired Auxiliary Power Unit horsepower output of system; Determine the cell pressure fluctuation range by setting up the primary mover efficacious workaround; Determine the rated speed of rotation of electrical generator by primary mover efficacious workaround range of speed; Obtain magneto alternator output rated line voltage by bus voltage; Determine the output torque of magneto alternator by the primary mover efficacious workaround; By requirement of system design horsepower output and bus voltage size, obtain the scope of Auxiliary Power Unit outgoing current; On the basis of level of torque corresponding to primary mover efficacious workaround, set up the relation of magneto alternator rotating speed-voltage, torque-current, thereby determine the parameter of permagnetic synchronous motor.The present invention realizes coupling and the type selecting of Auxiliary Power Unit take primary mover as control object, control variable is simple, system cost is lower.
Description of drawings
Fig. 1 is Auxiliary Power Unit matching process diagram of circuit of the present invention;
Fig. 2 is the primary mover experimental features curve synoptic diagram in the embodiment of the invention.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is described in detail.
As shown in Figure 1, the present invention selects primary mover, magneto alternator, the uncontrollable rectifier structure of three-phase electric drive automobile Auxiliary Power Unit, and above-mentioned three's coupling and selection method are:
1) at first designs the rating horsepower that desired Auxiliary Power Unit output power range determines primary mover and electrical generator according to automotive system.
2) behind definite primary mover rating horsepower, select suitable primary mover, record by experiment the range of speed of primary mover efficacious workaround.
3) on the basis of determining primary mover efficacious workaround range of speed, choose different SOC fluctuation ranges as the main reference foundation of scope range of the fluctuation of voltage according to different capabilities and battery types, the bus voltage fluctuation range when recording by experiment the electrokinetic cell normal operation.
4) after definite primary mover efficacious workaround scope and cell pressure fluctuation range, according to primary mover efficacious workaround range of speed, determine the rated speed of rotation of magneto alternator.
5) on bus voltage fluctuation range basis, by calculating the size of magneto alternator output rated line voltage.
6) according to primary mover efficacious workaround scope, determine the output torque range of magneto alternator.
7) on the basis of requirement of system design horsepower output size and bus voltage size, by calculating the scope of Auxiliary Power Unit outgoing current.
8) on the basis of level of torque corresponding to primary mover efficacious workaround, set up the relation of magneto alternator rotating speed-voltage, torque-current, thereby determine the parameter of permagnetic synchronous motor.
Fig. 2 is primary mover experimental features curve synoptic diagram, and abscissa is the primary mover rotating speed, and ordinate is primary mover output torque.Wherein dash area is the primary mover efficacious workaround, and namely primary mover is worked in this zone and had higher economy.The primary mover efficacious workaround is projected as N1～N2 at abscissa, and namely the range of speed of primary mover efficacious workaround is N1～N2, with this foundation as the magneto alternator rated speed of rotation.The primary mover efficacious workaround is projected as T1～T2 at ordinate, and namely the torque range of primary mover efficacious workaround is T1～T2, with this foundation as magneto alternator output torque.On the determining of cell pressure fluctuation range, because different capabilities, dissimilar battery, its battery behavior is not quite similar, and therefore mainly records different SOC, cell pressure that different charging and discharging currents is corresponding according to experiment.
After definite primary mover efficacious workaround, cell pressure fluctuation range, need the relation of foundation and magneto alternator efficacious workaround, can the partial design parameter of magneto alternator be claimed.According to primary mover efficacious workaround range of speed, determine the rated speed of rotation of magneto alternator.On the basis that bus voltage requires, by the relation of the AC/DC voltage transformation after the rectifier conversion, obtain the size of magneto alternator output rated line voltage, set up the relation of magneto alternator rotating speed-voltage.On the basis of requirement of system design horsepower output size and bus voltage size, determine the scope of Auxiliary Power Unit outgoing current.On the basis of level of torque corresponding to primary mover efficacious workaround, set up the relation of magneto alternator torque-current, thereby determine the parameter of permagnetic synchronous motor.
Above-mentioned steps only is from overall plan, and wherein concrete process can change to some extent, and every equivalents and improvement of carrying out on the basis of technical solution of the present invention all should do not got rid of outside protection scope of the present invention.
Claims (2)
1. the coupling of an electric drive automobile Auxiliary Power Unit and selection method on the Auxiliary Power Unit basis based on primary mover, magneto alternator, the uncontrollable rectifier structure of three-phase, is characterized in that:
1) at first designs the rating horsepower that desired Auxiliary Power Unit output power range determines primary mover and electrical generator according to automotive system;
2) behind definite primary mover rating horsepower, select suitable primary mover, record by experiment the range of speed of primary mover efficacious workaround;
3) on the basis of determining primary mover efficacious workaround range of speed, choose different SOC fluctuation ranges as the main reference foundation of scope range of the fluctuation of voltage according to different capabilities and battery types, the bus voltage fluctuation range when recording by experiment the electrokinetic cell normal operation;
4) after definite primary mover efficacious workaround scope and cell pressure fluctuation range, according to primary mover efficacious workaround range of speed, determine the rated speed of rotation of magneto alternator;
5) on bus voltage fluctuation range basis, by calculating the size of magneto alternator output rated line voltage;
6) according to primary mover efficacious workaround scope, determine the output torque range of magneto alternator;
7) on the basis of requirement of system design horsepower output size and bus voltage size, by calculating the scope of Auxiliary Power Unit outgoing current;
8) on the basis of level of torque corresponding to primary mover efficacious workaround, set up the relation of magneto alternator rotating speed-voltage, torque-current, thereby determine the parameter of magneto alternator.
2. the coupling of a kind of electric drive automobile Auxiliary Power Unit according to claim 1 and selection method is characterized in that: described primary mover adopts a kind of in diesel motor, engine petrol, natural gas engine, the rotating combustion engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011101881544A CN102320250B (en) | 2011-07-06 | 2011-07-06 | Matching and model selecting method of auxiliary power unit of electrically driven automobile |
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| CN2011101881544A CN102320250B (en) | 2011-07-06 | 2011-07-06 | Matching and model selecting method of auxiliary power unit of electrically driven automobile |
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| CN102320250A CN102320250A (en) | 2012-01-18 |
| CN102320250B true CN102320250B (en) | 2013-03-27 |
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| CN112436768B (en) * | 2020-11-12 | 2022-09-09 | 漳州科华技术有限责任公司 | Control method, system and device of vehicle-mounted converter and vehicle-mounted converter |
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| US3768002A (en) * | 1971-10-01 | 1973-10-23 | Gen Electric | Generator excitation system with rotating electromagnetic energy connector and internal winding power source |
| US6909200B2 (en) * | 2002-02-28 | 2005-06-21 | Azure Dynamics Inc. | Methods of supplying energy to an energy bus in a hybrid electric vehicle, and apparatuses, media and signals for the same |
| EP1595748B1 (en) * | 2003-02-17 | 2012-09-12 | Denso Corporation | Vehicle power supply system |
| CN101898519A (en) * | 2010-04-16 | 2010-12-01 | 罗宪安 | Extended-range electric vehicle |
| CN101920664A (en) * | 2010-09-03 | 2010-12-22 | 重庆长安汽车股份有限公司 | Auxiliary generation system for hybrid vehicle |
| CN102035302A (en) * | 2010-12-31 | 2011-04-27 | 倪洋坤 | Self-power generation driving and charging system for magnetic motor of electric automobile |
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Owner name: DELTA ELECTRONICS ENTERPRISE MANAGEMENT (SHANGHAI) Effective date: 20131120 |
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Effective date of registration: 20131120 Address after: 100084 Department of automobile, Tsinghua University, 1 Tsinghua Yuan, Beijing, Haidian District Patentee after: Tsinghua University Patentee after: Delta Electronic Enterprise Management (Shanghai) Co., Ltd. Address before: 100084 Department of automobile, Tsinghua University, 1 Tsinghua Yuan, Beijing, Haidian District Patentee before: Tsinghua University |
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