热能动力系统优化与节能改造  

Optimization and energy saving reform of thermal power system

作　　者：刘志武[1] Liu Zhiwu(Xi'an Aeronautical Polytechnic Institute,Office of teaching affairs,Xi'an 710089,China)

机构地区：[1]西安航空职业技术学院教务处

出　　处：《电子测量技术》2019年第18期22-26,共5页Electronic Measurement Technology

摘　　要：为了解决现有热能动力系统优化时未考虑系统的直流调制关系,导致节能效果较差的问题,提出基于直流功率调制和暂态能量跟踪融合的热能动力系统节能控制和改造技术。采用多直流调制协调稳定性调节方法,进行热能动力系统的机组节能控制。以功角、角速度、机械功率等为约束参量,对热能动力系统的机组输出特征量进行稳态特征分解,结合分解得到的稳态特征,对热能动力系统的节能稳态性控制进行分析。根据热能动力系统的转子角与转子角速度的直流调制关系,进行暂态能量跟踪融合处理,实现热能动力系统的优化与节能改造设计。仿真结果表明,采用该方法对热能动力系统进行优化,系统的节能控制性能较好,对直流功率的自动调节能力较强,提高了系统的节能效果。In order to solve the problem that DC modulation is not taken into account in the optimization of existing thermal power systems,resulting in poor energy-saving effect,energy-saving control and transformation technology of thermal power systems based on DC power modulation and transient energy tracking fusion is proposed.The energysaving control of thermal power system is carried out by using multi-DC modulation coordinated stability regulation method.With power a*ngle angular velocity and mechanical power as constraints,the steady-state eigenvalue decomposition of the unit output characteristic of thermal power system is carried out,and the steady-state control of energy-saving of thermal power system is analyzed combined with the steady-state characteristics obtained from the decomposition.According to the direct current modulation relationship between rotor angle and rotor angular velocity of thermal power system,transient energy tracking fusion processing is carried out to realize the optimization of thermal power system and energy saving design.The simulation results show that the energy-saving control performance of the thermal power system is better,and the automatic regulation ability of DC power is stronger,which improves the energy-saving effect of the system.

关 键 词：热能动力系统 节能改造 控制 能量 直流功率调制 

分 类 号：TK11[动力工程及工程热物理—热能工程]