欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
水轮机调速系统包括水轮发电机组对象和调速器,其小波动暂态的阻尼特性是影响机组稳定性的主要因素,本文对调速系统附加机械阻尼以及同步力矩的形成机理和计算进行了系统的研究。以典型调速器结构为例,建立包括机组对象和控制器在内的水轮发电机组线性化模型框架,给出了水轮机及其调速系统附加机械阻尼系数和同步力矩系数的计算方法。分析机组运动特性和阻尼系数的构成,定义了稳态和动态阻尼系数两种类型,并提出以机电振荡模式特征根近似计算机组自振频率的方法。仿真表明,适当调整调速器PID参数可以提高机组动态阻尼系数,本文所提出的计算方法是有效的。
英文摘要：
Hydroturbine governing system is composed by the object system of hydroturbine generating sets（HTGS） and governor,its damping characteristics in small disturbance transient is a mainly factor for HTGS stability,the forming mechanism and calculating of its additional mechanical damping and synchronous torque are studied in this paper.Taking a classic structure of governor as case,the linearization model frame of HTGS is composed including the object system and governor,the calculation methods of torque coefficients for the additional mechanical damping and synchronous torque of the hydroturbine and its governing system are proposed.The steady state and dynamics coefficients are defined by analyzing motion characteristics of HTGS and composing of damping coefficients,and then the natural frequency of vibration of HTGS can be calculated approximately by the eigenvalue of electromechanical oscillation mode.Simulation results show that proper adjustments PID parameters of governor can improve the dynamic damping coefficient,the proposed calculation method is effective.
同期刊论文项目
同项目期刊论文
Hamiltonian Stabilization Additional L-2 Adaptive Control and Its Application to Hydro Turbine Gener
The generalized Hamiltonian model for the shafting transient analysis of the hydro turbine generatin
Stabilization and L2 disturbance control based on generalized hamiltonian model of hydro turbine gen
Study on Natural Vibration Characteristic of Spiral Casing Structure in Hydraulic Turbine Based on A
Research on numerical method of flow-induced vibration on spiral casing structure of large-scale hyd
Numerical Simulation of Cavitating Turbulent Flow in a Francis Turbine with Draft Tube Natural Air A
SIMULATION OF TURBULENT FLOW IN A COMPLEX PASSAGE WITH A VIBRATING STRUCTURE BY FINITE ELEMENT FORMU
Analysis on equivalence between transfer function and equivalent circuit simulation in general Hamil
Numerical simulation of cavitating turbulent flow in a high head Francis turbine at part load operat
Three-dimensional damage analysis of concrete surrounding the spiral case in the Nuozhadu hydropower
Numerical Investigation of Cavitating Turbulent Flow in a Francis Turbine Runner Fitted with Splitte
Wave propagation in fluid-filled single-walled carbon nanotube on analytically nonlocal Euler-Bernou
期刊信息
位置：