FBMSVH 电液伺服系统 被广泛应用于控制精度高

电液伺服系统在自动化领域是一类重要的控制设备，被广泛应用于控制精度高、输出功率大的工业控制领域．液体作为动力传输和控制的介质，跟电力相比虽有许多不甚便利之处且价格较贵，但其具有响应速度快、功率质量比值大及抗负载刚度大等特点，因此电液伺服系统在要求控制精度高、输出功率大的控制领域占有独特的优势。电液伺服控制系统是以液压为动力，采用电气方式实现信号传输和控制的机械量自动控制系统。按系统被控机械量的不同，它又可以分为电液位置伺服系统、电液速度伺服控制系统和电液力控制系统三种。

我国的电液伺服发展水平目前还处在一个发展阶段，虽然在常规电液伺服控制技术方面，我们有了一定的发展。但在电液伺服高端产品及应用技术方面，我们距离国外发达国家的技术水平还有着很大差距。电液伺服技术是集机械、液压和自动控制于一体的综合性技术，要发展国内的电液伺服技术必须要从机械、液压、自动控制和计算机等各技术领域同步推进。

二．电液伺服的组成

电液控制系统是电气液压控制系统简称，它由电气控制及液压两部分组成。在电子-液压混合驱动技术里，能量流是由电子控制，由液压回路传递，充分结合了电子控制和液压传动两者混合驱动技术的优点避免了它们各自的缺陷。

⑴电子驱动技术的特点

①高精度、高效率，低能耗、低噪音

②高性能动态能量控制

③稳定的温度性能

④能量再生及反馈电网

⑤在循环空闲的时间没有能量损失

FBMSVH 电液伺服系统 被广泛应用于控制精度高

Electro-hydraulic servo system is an important control equipment in the field of automation, which is widely used in the field of industrial control with high control precision and large output power. Liquid as a power transmission and control medium, compared with electricity, although there are many inconvenient and expensive, but it has the characteristics of fast response speed, large power mass ratio and large load stiffness, so the electro-hydraulic servo system in the control field requiring high control accuracy and large output power occupies a unique advantage. The electro-hydraulic servo control system is an automatic mechanical control system which realizes signal transmission and control by means of electric. According to the different amount of machinery controlled by the system, it can be divided into electro-hydraulic position servo system, electro-hydraulic speed servo control system and electro-hydraulic control system.

China's electro-hydraulic servo development level is still in a stage of development, although in the conventional electro-hydraulic servo control technology, we have a certain development. However, in terms of high-end electro-hydraulic servo products and application technology, we are still far from the technical level of developed countries in foreign countries. Electro-hydraulic servo technology is a comprehensive technology that integrates mechanical, hydraulic and automatic control. To develop domestic electro-hydraulic servo technology, it is necessary to advance from the mechanical, hydraulic, automatic control and computer and other technical fields.

two. The composition of electro-hydraulic servo

Electro-hydraulic control system is the abbreviation of electrical hydraulic control system, which is composed of electrical control and hydraulic two parts. In the electric-hydraulic hybrid drive technology, the energy flow is electronically controlled and transmitted by the hydraulic circuit, fully combining the advantages of both electronic control and hydraulic transmission hybrid drive technology to avoid their respective shortcomings.

(1) Characteristics of electronic drive technology

① High precision, high efficiency, low energy consumption, low noise

② High performance dynamic energy control

③ Stable temperature performance

④ Energy regeneration and feedback grid

⑤ There is no energy loss during idle times in the cycle