KR20210148615A - charging system using winding synchronous motor - Google Patents

charging system using winding synchronous motor Download PDF

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Publication number
KR20210148615A
KR20210148615A KR1020200065687A KR20200065687A KR20210148615A KR 20210148615 A KR20210148615 A KR 20210148615A KR 1020200065687 A KR1020200065687 A KR 1020200065687A KR 20200065687 A KR20200065687 A KR 20200065687A KR 20210148615 A KR20210148615 A KR 20210148615A
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KR
South Korea
Prior art keywords
battery
power
synchronous motor
field coils
switching circuit
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KR1020200065687A
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Korean (ko)
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김태열
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김태열
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Priority to KR1020200065687A priority Critical patent/KR20210148615A/en
Publication of KR20210148615A publication Critical patent/KR20210148615A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/51—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K19/00—Synchronous motors or generators
    • H02K19/02—Synchronous motors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/10—Electrical machine types
    • B60L2220/14—Synchronous machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/91—Electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/92—Hybrid vehicles
    • 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
    • Y02T10/64—Electric machine technologies in electromobility
    • 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
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T10/72—Electric energy management in electromobility
    • 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
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations

Abstract

Disclosed is a charging system using a winding synchronous motor which can properly improve efficiency in each operating mode. The charging system using a winding synchronous motor comprises: an inverter converting power of a battery; a winding synchronous motor having a rotor with a plurality of field coils and a plurality of stator coils receiving power converted by the inverter; a switching circuit unit selectively providing power for the plurality of field coils; and a control unit controlling the switching circuit unit to supply power to at least one among the plurality of field coils from the battery in a motor mode in which the winding synchronous motor operates as a motor by receiving power from the battery, and insulating the field coils and the battery and controlling the switching circuit unit to provide system power to at least a portion of the field coils in a charging mode in which the battery is charged by applying the system power to the field coils.

Description

권선형 동기 전동기를 이용한 충전 시스템{charging system using winding synchronous motor}Charging system using winding synchronous motor

본 발명은 권선형 동기 전동기를 이용한 충전 시스템에 관한 것으로, 더욱 상세하게는 권선형 동기 전동기의 회전자에 마련된 계자 코일을 이중 구조로 구현함으로써 전동기로 동작하는 경우와 충전기로 동작하는 경우에 적 절하게 계자 코일을 선택적으로 적용함으로써 그 효율을 향상시킬 수 있는 권선형 동기 전동기를 이용한 충전 시스템에 관한 것이다.The present invention relates to a charging system using a wire-wound synchronous motor, and more particularly, by realizing a field coil provided in a rotor of a wire-wound synchronous motor in a double structure, it is suitable for operating as a motor and as a charger. The present invention relates to a charging system using a wound type synchronous motor capable of improving the efficiency by selectively applying a field coil.

지구 온난화와 환경 오염 등의 문제가 심각하게 대두 되면서 자동차 산업 분야에서도 환경 오염을 최대한 감소시킬 수 있는 친환경 차량에 대한 연구 개발이 활발하게 이루어지고 있으며 그 시장도 점차 확대되고 있다. 친 환경 자동차로서 기존의 화석 연료를 연소시켜 구동력을 발생시키는 엔진 대신 전기 에너지를 이용하여 구동력 을 생성하는 전동기를 적용한 전기 차량, 하이브리드 차량 및 플러그인 하이브리드 차량이 세계적으로 출시되고 있는 상황이다. 이러한 전기 에너지를 이용한 친환경 차량 기술들은 대부분 계통(grid)으로부터 차량에 구비된 배터리를 충전하여 전동의 구동에 활용한다. 이에 따라, 전기 에너지를 이용한 친환경 차량은 계통으로부터 제 공되는 전기 에너지를 배터리에 충전하기 위한 차량 탑재형 충전 회로가 요구된다.As problems such as global warming and environmental pollution become serious, research and development on eco-friendly vehicles that can reduce environmental pollution to the maximum in the automobile industry are being actively conducted, and the market is also gradually expanding. As an eco-friendly vehicle, electric vehicles, hybrid vehicles, and plug-in hybrid vehicles that use electric energy to generate driving power instead of the engine that generates driving power by burning fossil fuels are being applied worldwide. Most of the eco-friendly vehicle technologies using such electric energy charge a battery provided in the vehicle from the grid and use it for electric driving. Accordingly, an eco-friendly vehicle using electric energy requires a vehicle-mounted charging circuit for charging the battery with electric energy provided from the system.

본 발명은 배터리의 직류 전력을 교류 전력으로 전력 변환하는 인버터로부터 교류 전력을 입력 받아 권선형 동기 전동기를 충전 회로의 절연 변압기로 적용하여 배터리를 충전할 수 있는 권선형 동기 전동기를 이용한 충전 시스템에 있어서, 권선형 동기 전동기가 전동기로서 동작하는 경우와 변압기로서 동작하여 충전기의 일부로 적 용되는 경우에 따라 적절하게 계자 코일의 인덕턴스값을 선택하게 함으로써 각 동작 모드에 적절하게 효율을 향 상시킬 수 있는 권선형 동기 전동기를 이용한 충전 시스템을 제공하는 것을 해결하고자 하는 기술적 과제로 한 다.The present invention relates to a charging system using a winding type synchronous motor capable of charging a battery by receiving AC power from an inverter that converts DC power of a battery into AC power and applying the winding type synchronous motor as an insulation transformer of a charging circuit. In this case, it is recommended to appropriately improve the efficiency for each operation mode by appropriately selecting the inductance value of the field coil depending on the case where the wound type synchronous motor operates as a motor and when it operates as a transformer and is applied as a part of the charger. It is a technical problem to be solved to provide a charging system using a linear synchronous motor.

상기 기술적 과제를 해결하기 위한 수단으로서 본 발명은,배터리의 전력을 변환하는 인버터;상기 인버터에서 변환된 전력을 각각 입력 받는 복수의 고정자 코일 및 복수의 계자 코일이 설치된 회전자를 갖는 권선형 동기 전동기; As a means for solving the above technical problem, the present invention provides an inverter for converting electric power of a battery; a winding type synchronous motor having a plurality of stator coils and a rotor having a plurality of field coils respectively receiving the converted electric power in the inverter ;

상기 복수의 계자 코일에 선택적으로 전력을 제공하는 스위칭 회로부; 상기 권선형 동기 전동기가 상기 배터리로부터 전력을 제공받아 전동기로서 동작하는 전동기 모드인 경우 상기스위칭 회로부를 제어하여 상기 배터리로부터 상기 복수의 계자 코일 중 적어도 하나에 전력을 공급하고, 상기 계자 코일 측에 계통 전력을 인가하여 배터리를 충전하는 충전 모드인 경우 상기 배터리와 상기 계자 코일을 절 연 시키고 상기 스위칭 회로부를 제어하여 상기 계자 코일 중 적어도 일부에 상기 계통 전력을 제공하는 제어부;를 포함하는 권선형 동기 전동기를 이용한 충전 시스템을 제공한다.a switching circuit unit selectively providing power to the plurality of field coils; When the winding-type synchronous motor is in a motor mode in which the electric power is supplied from the battery and operates as an electric motor, the switching circuit unit is controlled to supply power to at least one of the plurality of field coils from the battery, and a grid to the field coil side A winding type synchronous motor comprising a; in the case of a charging mode in which the battery is charged by applying power, a control unit insulates the battery and the field coil and controls the switching circuit unit to provide the grid power to at least a part of the field coil A charging system using

상기 권선형 동기 전동기를 이용한 충전 시스템에 따르면, 권선형 동기 전동기의 계자 코일을 복수 개 구비하게하고 권선형 동기 전동기가 전동기 모드 및 충전 모드의 각 모드로 동작할 때 해당 모드에 적절한 인덕턴스를 갖도록 계자 코일을 선택적으로 사용할 수 있게 함으로써, 각 모드 별 최적의 효율을 달성할 수 있다.According to the charging system using the wirewound synchronous motor, a plurality of field coils of the wirewound synchronous motor are provided, and when the wirewound synchronous motor operates in each mode of the motor mode and the charging mode, the field has an appropriate inductance for the corresponding mode. By enabling the coil to be selectively used, it is possible to achieve optimum efficiency for each mode.

이하, 첨부의 도면을 참조하여 본 발명의 다양한 실시형태에 따른 권선형 동기 전동기를 이용한 충전 시스템을 더욱 상세하게 설명한다. 도 1은 본 출원의 출원인에 의한 특허출원 제10-2016-0140224호에 기재된 권선형 동기 전동기를 이용한 충전 시스템을 도시한 회로도이다. 본 발명의 충분한 이해를 위해 본 출원의 출원인에 의한 선행 출원에 개시된 권선형 동기 전동기를 이용한 충전 시스템에 대해 간략하게 설명하기로 한다. 권선형 동기 전동기를 이용한 충전 시스템은,배터리와, 권선형 동기 전동기(30)와 릴레이(40) 및 제어부(50)를 포함하여 구성될 수 있다.Hereinafter, a charging system using a wirewound synchronous motor according to various embodiments of the present invention will be described in more detail with reference to the accompanying drawings. 1 is a circuit diagram illustrating a charging system using a winding type synchronous motor described in Patent Application No. 10-2016-0140224 by the applicant of the present application. For a sufficient understanding of the present invention, a charging system using a wirewound synchronous motor disclosed in a prior application by the applicant of the present application will be briefly described. A charging system using a winding type synchronous motor may include a battery, a winding type synchronous motor 30 , a relay 40 , and a control unit 50 .

Claims (1)

배터리의 전력을 변환하는 인버터;
상기 인버터에서 변환된 전력을 입력 받는 복수의 고정자 코일 및 복수의 계자 코일이 설치된 회전자를 갖는 권 선형 동기 전동기;
상기 복수의 계자 코일에 선택적으로 전력을 제공하는 스위칭 회로부;
상기 권선형 동기 전동기가 상기 배터리로부터 전력을 제공받아 전동기로서 동작하는 전동기 모드인 경우 상기 스위칭 회로부를 제어하여 상기 배터리로부터 상기 복수의 계자 코일 중 적어도 하나에 전력을 공급하고, 상기 계자 코일 측에 계통 전력을 인가하여 배터리를 충전하는 충전 모드인 경우 상기 배터리와 상기 계자 코일을 절 연 시키고 상기 스위칭 회로부를 제어하여 상기 계자 코일 중 적어도 일부에 상기 계통 전력을 제공하는 제어부;를 포함하는 권선형 동기 전동기를 이용한 충전 시스템.an inverter that converts the battery's power;
a wound linear synchronous motor having a plurality of stator coils receiving power converted from the inverter and a rotor provided with a plurality of field coils;
a switching circuit unit selectively providing power to the plurality of field coils;
When the winding type synchronous motor is in a motor mode in which the electric power is supplied from the battery and operates as a motor, the switching circuit unit is controlled to supply power to at least one of the plurality of field coils from the battery, and a grid to the field coil side A winding type synchronous motor comprising a; in the case of a charging mode in which the battery is charged by applying power, a control unit to insulate the battery and the field coil and control the switching circuit unit to provide the grid power to at least some of the field coils charging system using
KR1020200065687A 2020-06-01 2020-06-01 charging system using winding synchronous motor KR20210148615A (en)

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