Controlled regulation method for mobile pipeline pump engine set

Abstract

A control method for the engine of a mobile pipeline pump unit, which is based on the automatic protection control of the pump unit, supplemented by the automatic adjustment of the oil delivery condition, and the two-position fixed value band adjustment of the inlet pressure is mainly used, and the outlet pressure single side band protection adjustment is supplemented. control method: when the working condition parameters of the unit exceed the safe working limit, it will unconditionally enter the protection control state of alarm, idle speed reduction, pump off and even emergency stop; Mainly, outlet pressure SSB protection adjustment is supplemented by "automatic adjustment of oil delivery conditions; the added fuzzy control makes it not completely dependent on the object model, good control dynamic response, small overshoot, small static difference, and strong robustness and other advantages; it can overcome the traditional fixed value single-point or double-position limit control, which is easy to cause frequent adjustments around the fixed value or double-position limit, and the inlet pressure and outlet pressure adjustments appear in turn. , eventually leading to defects such as system failure.

Description

field of invention [0001] The invention relates to a method for controlling and adjusting the engine of a mobile pipeline pump unit in a "pump-pump" sealed delivery mode. Background technique [0002] (1) Existing control technology for fixed pipelines - SCADA system, centralized monitoring of the entire line. Centralized control of the entire line is inseparable from communication, and communication in wartime is one of the main targets of the enemy. Therefore, the mobile oil pipeline system must be based on the local control of the pump unit. [0003] (2) The existing control method of the engine used in the mobile pipeline pump unit--PID adjustment, such as figure 1 As shown, that is, when the parameter is greater than or less than the set value, it enters the proportional + integral + differential (PI) adjustment; the existing problem is that it is easy to cause frequent adjustments around the fixed value, and the closed delivery mode of the "pump-pump" pipeline becomes...

AI Technical Summary

Problems solved by technology

[0003] (2) The existing control method of the engine used in the mobile pipeline pump unit--PID adjustment, such as figure 1 As shown, that is, when the parameter is greater than or less than the set value, it enters the proportional + integral + differential (PI) adjustment; the existing problem is that it is easy to cause frequent adjustments around the fixed value, and the closed delivery mode of the "pump-pump" pipeline becomes the whole line. In a unified hydraulic system, the frequent adjustment of the pump unit will easily lead to system oscillation and instability, which will eventually lead to paralysis of oil transportation

However, because the fuzzy control only takes a limited control level, the improvement of precision is limited, and there is a static error

Images