Hydraulic turbine governor technical document
TR-DOC-01
CVZT-150数字式
水轮机调速器原理与使用说明
The Principle and User Manual for CVZT-150 Digital Hydraulic Turbine Governor
Beijing IWHR technology Co. Ltd Department of Automation
China Institute of Water resource and Hydropower Research
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China Institute of Water Resources and Hydropower Research
Beijing IWHR Technology Co.,Ltd Tel: 010-68781925,68576176
Hydraulic turbine governor technical document
目 录 Catalogue
1、概况 General 2、系统组成 System Configuration
3、主要技术参数 Main Technical Parameters 4、工作原理 Working Principle 5、运行操作 Operation
6、设备安装 Installation of Equipment
7、故障类型与处理 The Fault Type and Processing 8、维护建议 Maintaining Suggestion
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Notice: We will reserve the rigths of revising this document. The information in this document is subject to change without notice and should not be construed as a commitment by BITC. BITC assumes no responsibility for any errors that may appear in this document. Please based on the actual product as the criterion, if there has any discrepancies between the actual product and this document. Welcome to contact us at any time.
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China Institute of Water Resources and Hydropower Research
Beijing IWHR Technology Co.,Ltd Tel: 010-68781925,68576176
Hydraulic turbine governor technical document
1 概况General
现在已广泛使用“ 标准化PLC微机调节器+电液随动系统” 结构模式的新型微机调速器系统，由微机调节器部分完成信号传递、调节规律的综合、调节参数切换、状态指示、控制量的输出等功能，机械液压部分采用电液随动系统，纯粹将机械液压部分作为功率放大、进行随动控制的执行机构；发挥各自长处，提高了调节系统的性能和设计、使用等方面的灵活性。
The new type microcomputer-based governor system consisted of “standard PLC regulator + electro-hydraulic servo system” is now widely used. The microcomputer regulator section can execute following functions, such as signal transmission, regulating rule synthesize , regulating parameter switch, status indication, the output of control value,etc. The mechanical-hydraulic section adopt the eletro-hydraulic servo system, it simply works as a power amplifier and servo control actuator. The new type microcomputer-based governor system can improve the performance and the flexibility of use.
本手册为CVZT－150数字式水轮机调速器的原理与使用说明。 CVZT-150是基于现代液压数字逻辑插装技术而开发的一类新型调速器，其型号定义如下：
This manual will describe the princilpe and operating about the CVZT-150-6.3 digital hydraulic turbine governor. The CVZT-150 governor is a new type governor based on the modern hydraulic digital logic cartridge technology. Its model number are defined as follows,
CVZT-150-6.3
Pressure
grade
code
Specification code, also called main valve diameter (MPa) Double regulating governor for large turbine diameter
该类调速器采用逻辑插装技术，由高速开关阀与逻辑插装阀等标准液压件进行元件-组件-回路的多层次组合与优化设计，进而实现调速器调节与控制的所有功能。它突破了近一个世纪以来一成不变的电气-机械/液压转换元件（电液转换器或微型电机等） + 主配压阀的经典形式、以及制造工艺与结构布置等方面的种种制约，系统的调节、控制无需由“中间位置”与机械反馈来保证，使调速器的设计、制作与生产发生了根本性的变化；它兼顾了机械液压动作的可靠性、微机的适用性和阀的简单化。具有高可靠性、响应快、动作平稳性好、定位精度高、工作效率高、节省油源消耗等独特优点，在调速器领域独树一帜。
This type governor is based on logic cartridge technology, that is combined with high
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China Institute of Water Resources and Hydropower Research
Beijing IWHR Technology Co.,Ltd Tel: 010-68781925,68576176
Hydraulic turbine governor technical document
speed on-off valve and cartridge valve,via multi-level manifold block combination and optimal design from components to subassembly to fluid loop, then proceed to realize all the regulating and control functions of governor. It has successfully breached the constraint of classic structure with electrical-mechanical/hydraulic conveter or micro-motor plus main distributing valve, and it has also broken through the constraint of manufacturing process and structural arrangement. It is without the necessity for “middle position” and mechanical feedback to ensure the regulating and control of system. That enable the design and manufacture of governor to be a fundamental change. It make a compromise the motion reliability of mechanical hydraulic section, applicability of micro-computer,and simplification of valve. It has unique advantages of high reliability, quick response, smooth motion, and high precision of positioning, high motion efficiency, save oil consumption,etc. It is unique and place a position in the field of governor.
2 系统组成System Configulation
CVZT-150调速器由电子调节器、液压随动系统两大部分构成，各部分的组成大体如下：
The CVZT-150 series turbine governor is mainly composed by two parts: electrical regulator and hydraulic servo system. Components of each part are presented as follows:
2.1电子调节器：Electrical Regulator
其核心部件为可编程控制器、输入/输出信号调理模块、智能功放/驱动回路；它具有高可靠性和直观、方便的人机接口，提供了全方位、最直接的监测、调试和维护手段。
Its core part includes PLC, input/output signal disposing module, the amplifier/driver circuit; it provides high reliability，a friendly man-machine surface, and direct measuring and debugging and maintaining method.
①可编程控制器组成：CPU单元、开关量输入模块、开关量输出模块、模拟量输入模块、高速计数模块、远程通信模块、电源模块。
The PLC is composed of CPU unit, digital input/output (I/O) modules, analog input modules, high speed counter modules, remote communication modules and power supply modules.
②智能功放/驱动回路：将微机输出的脉冲信号放大后，驱动DC24V电压等级的高速开关阀，输出信号为数字脉冲信号。 4
China Institute of Water Resources and Hydropower Research
Beijing IWHR Technology Co.,Ltd Tel: 010-68781925,68576176
Hydraulic turbine governor technical document
The amplifier/driver circuit: After amplified TTL output signal of microcomputer, the amplifier/driver circuit will drive the DC24V digital valve sets, and the output signal is pulse signal.
主要特点：Main characteristic
①采用可编程控制器作为硬件主体，装置可靠性高，平均无故障时间MTBF≥150000小时；
Adopting the PLC as the main part of the hardware, the equipment has high reliability, and its MTBF (Mean Time between Failures) is more than 150000 hours;
②具有频率（转速）/开度/功率等多种调节模式，适应水电厂不同运行工况的要求（功率变送器用户自备）；
The electrical regulator provides frequency(hydraulic turbine speed)/opening/active power regulating modes, and it can adapt various operating mode of hydraulic turbine unit;
③水头参数可自动测入（电平标准：0～5V或0～20mA）,也可由运行人员手动设定, 具有适应水头的开机特性和最大出力特性；
Water head can be measured automatically (the electrical level standard: 0~5V or 0~20mA), or set manually by operator. Its opening character and maximal power character adapt well to water head;
④调节参数（bp、bt、Td、Tn或bp、Kp、Ki、Kd）用平板触摸显示屏调整； Regulating parameters (bp, bt, Td, Tn or bp、Kp、Ki、Kd) are adjusted through the touch screen(or HMI);
⑤采用发光二极管（光示牌）、指针式电表、拨换开关与平板触摸显示屏调整作为与运行人员的接口，具有显示清晰、准确、直观、操作方便等优点；
Adopting large scale digital display tube, light diode (light brand), dial ammeter, switch and touch screen as the interface with the operator, it has the advantages of clarity, visual display and easy to operate;
⑥电气辅件（开关电源、继电器、控制开关、信号灯……）均采用进口优质器件，可靠性高；
Electric accessories element (switch power supply, relay, control switch, signal light……) are imported high quality implement, and have high reliability;
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China Institute of Water Resources and Hydropower Research
Beijing IWHR Technology Co.,Ltd Tel: 010-68781925,68576176