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一、概述提升机电控配用低频电源,实现提升机减速时的电制动及低速段的爬行,必须考虑整个电气控制系统及机械系统,尤其要有一个合适的运行工况,即合适的速度图,力图等,否则将难以发挥高效、节能、安全可靠及便于维护等优势,造成不必要的困难和损失。二、系统特性及控制特点提升机系统要实现减速时的电制动,须在减速段产生合适的负力,使电控系统可以采取负力减速方案。即在减速点断开高压电后,提升机由于惯性和负力不会马上停车,
First, an overview of escalating electromechanical control with low-frequency power supply to achieve the elevator deceleration and electric braking at low speed crawling, you must consider the entire electrical control system and mechanical systems, in particular, have a suitable operating conditions, that is, suitable Speed map, trying to wait, otherwise it will be difficult to play efficient, energy saving, safe and reliable and easy to maintain and other advantages, resulting in unnecessary difficulties and losses. Second, the system characteristics and control features Hoist system to achieve deceleration when the electric brake, deceleration section to produce the appropriate negative force, so that electronic control system can take negative deceleration program. That is, after the deceleration point to disconnect the high voltage, the elevator due to inertia and negative force will not immediately stop,