柴油发电机数字电压调节技术研究

发电机调压器是维持柴油机组正常运行不可缺少的重要部分,对机组的安全稳定运行起到重要作用。目前,主要存在基于晶体管式的模拟调压器以及基于微处理器的数字调压器两种。鉴于数字调压器具有传统的模拟式调压器无法比拟的优势,本文针对某型车辆柴油发电机设计了基于TMS320F28335芯片的数字电压调节器。设计了数字电压调节器的输入输出接口电路,包括模拟量调理电路、数字量调理电路、励磁主电路和励磁驱动电路等,制作功率板。采用以TMS320F28335为核心的DSP最小系统作为核心控制器,利用电压、励磁电流双环调节的方式,采用复合PID控制算法。搭建系统实验平台,对调压器进行测试,满足预期功能要求。

Research on Digital Voltage Regulation Technology of Diesel Generator

The generator voltage regulator is an indispensable part of maintaining the normal operation of the diesel unit, and it plays an important role in the safe and stable operation of the unit. At present, there are mainly two types of transistor-based analog voltage regulators and microprocessor-based digital voltage regulators. In view of the advantages that the digital voltage regulator has unmatched by the traditional analog voltage regulator, this paper designs a digital voltage regulator based on the TMS320F28335 chip for a certain type of vehicle diesel generator. The input and output interface circuit of the digital voltage regulator is designed, including the analog conditioning circuit, the digital conditioning circuit, the excitation main circuit and the excitation driving circuit, etc., to fabricate the power board. The DSP minimum system with TMS320F28335 as the core is adopted as the core controller, and the composite PID control algorithm is adopted by means of voltage and excitation current double loop adjustment. Set up a system experiment platform to test the regulator to meet the expected functional requirements.