The invention relates to the technical field of engineering machinery, and discloses a descending control system and an aerial work platform. The descending control system is applied to the descending process of the aerial work platform and comprises a first feedback current control device used for capturing feedback current conveyed by a driver under the condition that the aerial work platform loses power; and the second feedback current control device is used for shunting the feedback current according to the temperature and the charging state of the battery under the condition that the aerial work platform is powered on. Power-loss emergency descending, feedback energy recovery and battery protection can be realized, so that permanent magnet motors such as a direct-current brushless motor and a permanent magnet synchronous motor can be applied to an aerial work platform, the size of the lifting mechanism is greatly reduced, and meanwhile, the product is more energy-saving and environment-friendly; and the permanent magnet motor has the characteristics of high power density and high heavy load efficiency, so that the permanent magnet motor can be widely applied to various scenes and has high energy consumption efficiency.
本发明涉及工程机械技术领域,公开了一种下降控制系统及高空作业平台。所述下降控制系统应用于高空作业平台下降过程,包括:第一回馈电流控制装置,用于在所述高空作业平台失电的情况下,捕获驱动器所输送的回馈电流;以及第二回馈电流控制装置,用于在所述高空作业平台上电的情况下,根据电池的温度与充电状态,对所述回馈电流进行分流。本发明可实现失电应急下降、回馈能量回收与电池保护,从而可使直流无刷电机、永磁同步电机等永磁类电机应用于高空作业平台,这大大缩小了升降机构的体积,同时使产品更加节能环保,并且由于永磁类电机具备功率密度高与重载效率高的特点,其可广泛应用于各种场景且能耗效率高。
Descending control system and aerial work platform
下降控制系统及高空作业平台
2024-03-19
Patent
Electronic Resource
Chinese
IPC: | H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
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