CN113547908A - Hybrid power system and control method thereof - Google Patents
Hybrid power system and control method thereof Download PDFInfo
- Publication number
- CN113547908A CN113547908A CN202111032072.0A CN202111032072A CN113547908A CN 113547908 A CN113547908 A CN 113547908A CN 202111032072 A CN202111032072 A CN 202111032072A CN 113547908 A CN113547908 A CN 113547908A
- Authority
- CN
- China
- Prior art keywords
- winding
- power
- control
- engine
- energy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/46—Series type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/28—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the electric energy storing means, e.g. batteries or capacitors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
- B60W20/15—Control strategies specially adapted for achieving a particular effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/50—Control strategies for responding to system failures, e.g. for fault diagnosis, failsafe operation or limp mode
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/08—Electric propulsion units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2530/00—Input parameters relating to vehicle conditions or values, not covered by groups B60W2510/00 or B60W2520/00
- B60W2530/10—Weight
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2552/00—Input parameters relating to infrastructure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/08—Electric propulsion units
- B60W2710/081—Speed
-
- 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
- Y02T10/62—Hybrid vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
The invention discloses a hybrid power system and a control method thereof. The brushless double-fed motor is adopted to replace a permanent magnet motor, and the power winding and the control winding of the brushless double-fed motor can simultaneously carry out frequency conversion and speed regulation, so that the speed regulation range is wider; the super capacitor and the storage battery are adopted for supplying power at the same time, so that the discharging performance and the power storage capacity can be ensured; when the winding on one side has a problem, the winding can be opened to control the asynchronous motor, so that the system safety is improved; due to the existence of the super capacitor, the power winding is a high-voltage winding, so that the circuit loss can be reduced; the brushless double-fed motor is a dual-port motor, the control winding and the power winding can be controlled simultaneously, the control scheme is various, and power and cruising ability can be better optimized.
Description
Technical Field
The invention belongs to the technical field of vehicle power systems, and particularly relates to a hybrid power system and a control method thereof.
Background
With the popularization of the concept of green life, vehicles applying pure electric power or other new energy power are more and more in types around the world. The vehicles such as buses and taxis can well apply new energy power. Due to the great difference between the total weight of the vehicle and the operating conditions, the application of pure electric technology to heavy vehicles of the transportation type is still in the preliminary stage. There are three types of power schemes in current urban transportation vehicles. Firstly, the heavy-duty vehicle with large total mass or long operation mileage is driven by the internal combustion engine to follow the traditional scheme; secondly, pure electric power is applied to the vehicle with smaller total mass or short operation mileage; the third category is hybrid, with moderate overall mass and operating mileage.
At present, the hybrid power mainly adopts a permanent magnet synchronous motor, has the advantages of high efficiency and high power density, but has the following technical defects:
1) the magnetic circuit structure and design calculation are complex, and the material processing difficulty is high;
2) the problem of constant voltage control, the difficulty of field weakening at high speed;
3) the heating is serious when the permanent magnet runs at high speed, and the permanent magnet is easy to lose magnetism;
4) the cost problem, permanent magnet material price and the processing degree of difficulty have promoted overall cost.
Disclosure of Invention
The invention provides a hybrid power system and a control method thereof, which can solve or at least partially solve the technical problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, a hybrid power system is provided, which includes an engine, a brushless doubly-fed motor and a frequency conversion device, wherein the engine is connected with a load, and the brushless doubly-fed motor is indirectly connected with the load by connecting the engine in series;
the brushless motor comprises a power winding and a control winding, the power winding is connected with a super capacitor through a first bridge circuit, and the control winding is connected with a storage battery through a second bridge circuit;
the frequency conversion device is used for adjusting the output frequency of the power winding and the control winding.
Optionally, comprising:
and the charging device is used for charging the super capacitor and the storage battery through a charging pile.
Optionally, comprising:
and the switching device is respectively connected with the power winding and the control winding and is used for switching one of the power winding and the control winding into an open circuit when the failed winding is failed.
In a second aspect, there is provided a control method applied to the hybrid system described above, including:
when the vehicle speed changes rapidly, the brushless double-fed motor is in a working state, and energy is fed in or out through the power winding.
Optionally, comprising:
under the idle working condition, the engine is shut down; and performing energy feed-in and feed-out control of starting and decelerating through the brushless double-fed motor.
Optionally, comprising:
when the brake is heavily loaded and the vehicle runs downhill, the brushless doubly-fed motor is in a working state, and the power winding and the control winding feed out or feed in energy at the same time.
Optionally, comprising:
when one of the power winding and the control winding fails, the failed winding is switched to an open circuit.
Optionally, comprising:
under the working condition of small load, if the energy of the energy storage system is sufficient, the engine is closed; the brushless double-fed motor is in a working state, and the power winding and the control winding feed energy to a load simultaneously;
if the energy of the energy storage system is insufficient, starting the engine, and enabling the engine to operate in a working interval with the best fuel economy; the brushless double-fed motor is in a working state, and feeding-in and feeding-out of energy of the power winding and the control winding are determined according to the condition of a load.
Optionally, comprising:
under the working condition of medium load, starting the engine and enabling the engine to operate in a working interval with the best fuel economy; the brushless double-fed motor is in a working state, and feeding-in and feeding-out of energy of the power winding and the control winding are determined according to the condition of a load.
Optionally, comprising:
under the working condition of large load or full load, starting the engine and enabling the engine to operate in a working interval with the best fuel economy; the brushless double-fed motor is in a working state, and the power winding, the control winding and the engine all feed energy out to a load.
Optionally, comprising:
under the acceleration working condition, the brushless doubly-fed motor is in the working state, and the power winding feeds energy out to a load.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
according to the hybrid power system and the control method thereof provided by the embodiment of the invention, the brushless double-fed motor is adopted in the hybrid power system to replace a permanent magnet synchronous motor, the power winding and the control winding of the brushless double-fed motor can simultaneously carry out frequency conversion and speed regulation, and the speed regulation range is wider; the design scheme is simple to process, the material is a conventional motor material, and the process universality is strong; the problem of high-temperature demagnetization of the permanent magnet does not exist, and the overload capacity is very strong; the super capacitor and the storage battery are adopted for supplying power at the same time, so that the discharging performance and the power storage capacity can be ensured; when the winding on one side has a problem, the winding can be opened to control the asynchronous motor, so that the system safety is improved; due to the existence of the super capacitor, the power winding is a high-voltage winding, so that the circuit loss can be reduced; the brushless double-fed motor is a dual-port motor, the control winding and the power winding can be controlled simultaneously, the control scheme is various, and power and cruising ability can be better optimized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the present invention, and do not limit the conditions for implementing the present invention, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the functions and purposes of the present invention, should still fall within the scope covered by the contents disclosed in the present invention.
Fig. 1 and fig. 2 are block diagrams illustrating a hybrid system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Please refer to fig. 1 and fig. 2.
The embodiment provides a hybrid power system which comprises an engine, a brushless double-fed motor and a frequency conversion device, wherein the engine is connected with a load, and the brushless double-fed motor is indirectly connected with the load through connecting the engine in series.
The brushless double-fed motor comprises a power winding and a control winding, the power winding is connected with a super capacitor through a first bridge circuit, and the control winding is connected with a storage battery through a second bridge circuit.
The frequency conversion device is used for adjusting the output frequency of the power winding and the control winding.
The frequency conversion device can simultaneously carry out frequency conversion speed regulation on the power winding and the control winding. Specifically, the rotating speed expression of the brushless doubly-fed motor is used
It can be seen that the speed range of the motor is determined by the output frequency of the power winding and the control winding, thus increasing the speed regulation range. Wherein, ω isr、ωp、ωc、ppAnd pcRespectively representing the rotating speed of the motor, the angular frequency of the power winding, the angular frequency of the control winding, the number of pole pairs of the power winding and the number of pole pairs of the control winding.
Further, the hybrid power system further comprises a charging device which is used for charging the super capacitor and the storage battery through the charging pile. The super capacitor and the storage battery are adopted to supply power at the same time, and the discharging performance and the power storage capacity can be ensured. Specifically, the voltage corresponding to the super capacitor is high voltage, so that the circuit loss can be reduced; the voltage of the battery is low. Thus, the first bridge circuit may be a high voltage three phase bridge circuit and the second bridge circuit may be a low voltage three phase bridge circuit. The super capacitor feeds in and feeds out energy through a high-voltage three-phase bridge circuit, and the storage battery feeds in and feeds out energy through a low-voltage three-phase bridge circuit.
Furthermore, the hybrid power system also comprises a switching device, wherein the switching device is respectively connected with the power winding and the control winding and is used for switching one of the power winding and the control winding into an open circuit when the failed winding is failed so as to control the asynchronous motor, and the system safety is improved.
In the hybrid power system provided by the embodiment, the brushless double-fed motor is adopted to replace a permanent magnet synchronous motor, the power winding and the control winding of the brushless double-fed motor can simultaneously carry out frequency conversion and speed regulation, and the speed regulation range is wider; the design scheme is simple to process, the material is a conventional motor material, and the process universality is strong; the problem of high-temperature demagnetization of the permanent magnet does not exist, and the overload capacity is very strong; the super capacitor and the storage battery are adopted for supplying power at the same time, so that the discharging performance and the power storage capacity can be ensured; when the winding on one side has a problem, the winding can be opened to control the asynchronous motor, so that the system safety is improved; due to the existence of the super capacitor, the power winding is a high-voltage winding, so that the circuit loss can be reduced; the brushless double-fed motor is a dual-port motor, the control winding and the power winding can be controlled simultaneously, the control scheme is various, and power and cruising ability can be better optimized.
In another embodiment of the present application, there is also provided a control method applied to the above hybrid system, including the following control steps:
and S1, when the vehicle speed changes rapidly, the brushless double-fed motor is in a working state, and energy can be fed in or out through the super capacitor of the power winding loop, so that the system has stronger discharge performance, and the maneuverability of the vehicle is improved.
S2, under the idle working condition, the engine is closed; the energy feed-in and feed-out control of starting and decelerating is carried out through the brushless double-fed motor, and the energy can mainly come from the super capacitor.
S3, when the brake is heavily loaded and the vehicle runs downhill, the brushless double-fed motor is in a working state, the power winding and the control winding feed energy out simultaneously, large braking torque can be achieved, and energy can be recycled (fed in) at the same time.
And S4, when one of the power winding and the control winding has a fault, switching the failed winding into an open circuit to control the asynchronous motor, thereby increasing the system safety.
Further, the control method provided by this embodiment further includes the following control steps:
s5, under a small load working condition, if the energy of the energy storage system is sufficient, the engine is closed; the brushless double-fed motor is in a working state, energy is fed out by the power winding to a load, and the energy mainly comes from the super capacitor;
if the energy of the energy storage system is insufficient, starting the engine, and enabling the engine to operate in a working interval with the best fuel economy; the brushless double-fed motor is in a working state, and feeding-in and feeding-out of energy of the power winding and the control winding are determined according to the condition of a load.
S6, under the working condition of medium load, starting the engine and enabling the engine to operate in the working range with the best fuel economy; the brushless double-fed motor is in a working state, and feeding-in and feeding-out of energy of the power winding and the control winding are determined according to the condition of a load.
S7, under the working condition of large load or full load, starting the engine and enabling the engine to operate in the working interval with the best fuel economy; the brushless double-fed motor is in a working state, and the power winding, the control winding and the engine all feed energy out to a load.
And S8, under the acceleration working condition, the brushless double-fed motor is in the working state, and the power winding feeds energy out to a load.
It should be noted that the small load, the medium load, and the large load respectively represent different load ranges, and the overall load range may be divided into these three ranges according to actual needs: small load, medium load and large load.
According to the control method provided by the embodiment of the invention, the power winding and the control winding of the brushless double-fed motor can simultaneously carry out frequency conversion and speed regulation, and the speed regulation range is wider; the super capacitor and the storage battery are adopted for supplying power at the same time, so that the discharging performance and the power storage capacity can be ensured; when one side winding has a problem, the winding can be opened, so that the asynchronous motor can be controlled, and the system safety is improved.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A hybrid power system is characterized by comprising an engine, a brushless double-fed motor and a frequency conversion device, wherein the engine is connected with a load, and the brushless double-fed motor is indirectly connected with the load by being connected with the engine in series;
the brushless motor comprises a power winding and a control winding, the power winding is connected with a super capacitor through a first bridge circuit, and the control winding is connected with a storage battery through a second bridge circuit;
the frequency conversion device is used for adjusting the output frequency of the power winding and the control winding.
2. The hybrid system according to claim 1, characterized by comprising:
and the charging device is used for charging the super capacitor and the storage battery through a charging pile.
3. The hybrid system according to claim 1, characterized by comprising:
and the switching device is respectively connected with the power winding and the control winding and is used for switching one of the power winding and the control winding into an open circuit when the failed winding is failed.
4. A control method applied to the hybrid system according to any one of claims 1 to 3, characterized by comprising:
when the vehicle speed changes rapidly, the brushless double-fed motor is in a working state, and energy is fed in or out through the power winding.
5. The control method according to claim 4, characterized by comprising:
under the idle working condition, the engine is shut down; and performing energy feed-in and feed-out control of starting and decelerating through the brushless double-fed motor.
6. The control method according to claim 4, characterized by comprising:
when the brake is heavily loaded and the vehicle runs downhill, the brushless doubly-fed motor is in a working state, and the power winding and the control winding feed out or feed in energy at the same time.
7. The control method according to claim 4, characterized by comprising:
when one of the power winding and the control winding fails, the failed winding is switched to an open circuit.
8. The control method according to claim 4, characterized by comprising:
under the working condition of small load, if the energy of the energy storage system is sufficient, the engine is closed; the brushless double-fed motor is in a working state, and the power winding and the control winding feed energy to a load simultaneously;
if the energy of the energy storage system is insufficient, starting the engine, and enabling the engine to operate in a working interval with the best fuel economy; the brushless double-fed motor is in a working state, and feeding-in and feeding-out of energy of the power winding and the control winding are determined according to the condition of a load.
9. The control method according to claim 4, characterized by comprising:
under the working condition of medium load, starting the engine and enabling the engine to operate in a working interval with the best fuel economy; the brushless double-fed motor is in a working state, and feeding-in and feeding-out of energy of the power winding and the control winding are determined according to the condition of a load.
10. The control method according to claim 4, characterized by comprising:
under the working condition of large load or full load, starting the engine and enabling the engine to operate in a working interval with the best fuel economy; the brushless double-fed motor is in a working state, and the power winding, the control winding and the engine all feed energy out to a load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111032072.0A CN113547908B (en) | 2021-09-03 | 2021-09-03 | Hybrid power system and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111032072.0A CN113547908B (en) | 2021-09-03 | 2021-09-03 | Hybrid power system and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113547908A true CN113547908A (en) | 2021-10-26 |
| CN113547908B CN113547908B (en) | 2023-07-25 |
Family
ID=78106366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111032072.0A Active CN113547908B (en) | 2021-09-03 | 2021-09-03 | Hybrid power system and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113547908B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115320363A (en) * | 2022-08-02 | 2022-11-11 | 东莞叁壹半导体科技有限公司 | Series hybrid electric vehicle system and power control method |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5083077A (en) * | 1990-07-31 | 1992-01-21 | The State Of Oregon Acting By And Through The State Board Of Higher Education On Behalf Of Oregon State University | Brushless doubly-fed generation system for vehicles |
| CN1583444A (en) * | 2004-06-15 | 2005-02-23 | 嘉兴市恒久动力科技有限公司 | Fuel and electric mixed power system of light traffic tool |
| JP2011250494A (en) * | 2010-05-24 | 2011-12-08 | Mitsubishi Electric Corp | Vehicle power supply system |
| US20140244082A1 (en) * | 2013-02-25 | 2014-08-28 | Fairfield Manufacturing Company, Inc. | Hybrid electric vehicle |
| US20150158390A1 (en) * | 2013-12-09 | 2015-06-11 | Textron Inc. | Using DC Motor With A Controller As A Generator |
| CN106208071A (en) * | 2015-05-29 | 2016-12-07 | 通用电气公司 | Hybrid AC and DC distribution system and using method |
| CN107244319A (en) * | 2017-06-26 | 2017-10-13 | 中车青岛四方车辆研究所有限公司 | Hybrid vehicle start stop control device, control method and control unit |
| CN107968606A (en) * | 2017-12-12 | 2018-04-27 | 湖南利能科技股份有限公司 | A kind of diesel-driven generator electricity generation system and control method based on brushless dual-feed motor |
| CN108054967A (en) * | 2017-12-25 | 2018-05-18 | 易事特集团股份有限公司 | Diesel generating system and its control method based on brushless dual-feed motor |
| CN108347203A (en) * | 2018-02-24 | 2018-07-31 | 易事特集团股份有限公司 | Brushless dual-feed motor control method, apparatus and system |
| CN109606136A (en) * | 2018-10-31 | 2019-04-12 | 华中科技大学 | A kind of hybrid power energy storage system and its control method, hybrid vehicle |
| CN112224039A (en) * | 2020-09-18 | 2021-01-15 | 盐城工学院 | Range extender of electric vehicle and control method |
-
2021
- 2021-09-03 CN CN202111032072.0A patent/CN113547908B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5083077A (en) * | 1990-07-31 | 1992-01-21 | The State Of Oregon Acting By And Through The State Board Of Higher Education On Behalf Of Oregon State University | Brushless doubly-fed generation system for vehicles |
| CN1583444A (en) * | 2004-06-15 | 2005-02-23 | 嘉兴市恒久动力科技有限公司 | Fuel and electric mixed power system of light traffic tool |
| JP2011250494A (en) * | 2010-05-24 | 2011-12-08 | Mitsubishi Electric Corp | Vehicle power supply system |
| US20140244082A1 (en) * | 2013-02-25 | 2014-08-28 | Fairfield Manufacturing Company, Inc. | Hybrid electric vehicle |
| US20150158390A1 (en) * | 2013-12-09 | 2015-06-11 | Textron Inc. | Using DC Motor With A Controller As A Generator |
| CN106208071A (en) * | 2015-05-29 | 2016-12-07 | 通用电气公司 | Hybrid AC and DC distribution system and using method |
| CN107244319A (en) * | 2017-06-26 | 2017-10-13 | 中车青岛四方车辆研究所有限公司 | Hybrid vehicle start stop control device, control method and control unit |
| CN107968606A (en) * | 2017-12-12 | 2018-04-27 | 湖南利能科技股份有限公司 | A kind of diesel-driven generator electricity generation system and control method based on brushless dual-feed motor |
| CN108054967A (en) * | 2017-12-25 | 2018-05-18 | 易事特集团股份有限公司 | Diesel generating system and its control method based on brushless dual-feed motor |
| CN108347203A (en) * | 2018-02-24 | 2018-07-31 | 易事特集团股份有限公司 | Brushless dual-feed motor control method, apparatus and system |
| CN109606136A (en) * | 2018-10-31 | 2019-04-12 | 华中科技大学 | A kind of hybrid power energy storage system and its control method, hybrid vehicle |
| CN112224039A (en) * | 2020-09-18 | 2021-01-15 | 盐城工学院 | Range extender of electric vehicle and control method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115320363A (en) * | 2022-08-02 | 2022-11-11 | 东莞叁壹半导体科技有限公司 | Series hybrid electric vehicle system and power control method |
| CN115320363B (en) * | 2022-08-02 | 2024-01-30 | 东莞叁壹半导体科技有限公司 | Series hybrid electric vehicle system and power control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113547908B (en) | 2023-07-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11374508B2 (en) | Electric drive system and energy management method | |
| CN103427742B (en) | A kind of Winding open circuit type mixed excitation electric machine electricity generation system and energy distributing method thereof | |
| CN107070334B (en) | A kind of switch reluctance generator converter topology and its control method | |
| CN107947679B (en) | A kind of multiport two-way switch reluctance motor driving system for solar hybrid power automobile | |
| He et al. | Control strategies design for a fuel cell hybrid electric vehicle | |
| CN111342736A (en) | Variable winding driving system of switched reluctance motor and online soft switching method | |
| CN107364367A (en) | A kind of integrated motor driving and on-board charging system based on more excitation source motors | |
| CN109849818A (en) | A kind of Vehicular auxiliary-power unit starting-generating system | |
| CN113547908B (en) | Hybrid power system and control method thereof | |
| Liu et al. | A novel single-phase bidirectional electric-drive-reconstructed onboard converter for electric vehicles | |
| CN109606136B (en) | Hybrid power energy storage system, control method thereof and hybrid power automobile | |
| CN113676095A (en) | Current cooperative control method of doubly salient electro-magnetic motor driving and charging integrated system | |
| CN110176897A (en) | A kind of more level switch magnetic resistance motor hybrid electric drive systems and its control method | |
| CN210852070U (en) | Braking energy feedback device based on double energy sources for vehicle-mounted electric automobile | |
| Gautam et al. | Performance investigation of Permanent Magnet Synchronous Motor (PMSM) drive supplied from hybrid sources | |
| CN112140911A (en) | Power battery control method for fuel cell engine system in northern area | |
| CN110614922A (en) | Double-energy-source-based braking energy feedback device for vehicle-mounted electric vehicle and control method | |
| Xu et al. | Characterization of advanced drive system for hybrid electric vehicles | |
| CN111703443B (en) | Hybrid locomotive and energy balance control method and system thereof | |
| CN207106240U (en) | A kind of integrated motor driving and on-board charging system based on more excitation source motors | |
| CN110098782B (en) | Fault-tolerant control method for primary permanent magnet linear motor traction system | |
| Zhang et al. | Investigation and development of a new brushless DC generator system for extended-range electric vehicle application | |
| CN206894539U (en) | High power permanent magnet synchronous motor brake power recovering device | |
| CN105099307B (en) | The energy distribution control method of Winding open circuit type permanent magnet electric power generation system | |
| Jia et al. | Research on the design of bidirectional DC/DC converter power allocation strategy for super-capacitor and battery hybrid energy storage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |