The invention provides a pure electric power system mode conversion system of a new energy electric vehicle, which belongs to the technical field of electric vehicle power systems and comprises a self-starting permanent magnet synchronous motor serving as a front wheel driving main driving motor, an auxiliary driving motor serving as a rear driving motor, an inverter respectively connected with the main driving motor and the auxiliary driving motor, and a controller connected with the inverter. The DC-AC inverter is connected with a stator winding of the double-stator disc type flywheel energy storage mechanism, the DC-DC inverter is connected with the storage battery, and the clutch enables the main drive motor to be connected with the auxiliary drive motor. According to the double-stator disc type flywheel energy storage structure, the flywheel and a motor structure are combined, and the power density of flywheel energy storage is improved; the quick charge and discharge characteristic of flywheel energy storage is fully utilized, the influence of impact current of a power system on the health state of a battery can be effectively reduced, electric energy dissipation caused by instantaneous high-power electromechanical energy conversion can be reduced, the efficiency of the power system can be improved, and flywheel energy storage can be provided as standby energy of the power system; the automobile driving mileage is improved.
本发明提供一种新能源电动汽车纯电动动力系统模式转化系统,属于电动汽车动力系统技术领域,自启动永磁同步电机作为前轮驱动主驱电机,辅驱电机作为后驱电机,与主驱电机和辅驱电机分别相连的逆变器,与双定子盘式飞轮储能机构的定子绕组相连的DC‑AC逆变器,与蓄电池相连的DC‑DC逆变器,使主驱电机与辅驱电机进行连接的离合器。本发明双定子盘式飞轮储能结构把飞轮与电机结构相结合,提升了飞轮储能的功率密度;充分利用了飞轮储能快速充放电的特性,既能够有效降低动力系统冲击电流对电池健康状态的影响,又可以降低瞬时大功率机电能量转换时造成的电能耗散,提高动力系统的效率,还可以提供飞轮储能作为动力系统的备用能量,提高汽车行驶里程。
New energy electric vehicle pure electric power system mode conversion system
新能源电动汽车纯电动动力系统模式转化系统
2023-08-22
Patent
Electronic Resource
Chinese
IPC: | H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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