Hydraulic turbine governor technical document
⑦频率调节模式采用适应式变参数PID调节规律，开度和功率调节模式采用PI 调节规律；
Adaptable and parameter variable PID regulating rules were adopted for the frequency regulating mode, and PI regulating rules were adopted for the opening and active power regulating mode;
⑧具有与上位机的通信接口（RS-422/RS485/RS232）；
The communication interface (RS-422 / RS485 / RS232) with LCU has been provided. ⑨可根据不同的水头改变机组的加速开度和最大出力限制，随着水头的增加，可自动减小机组的加速开度和最大电气开限值，以保证机组在起动过程中平稳迅速并网和安全有效运行。
The shut-up opening and the maximal active power limit of the turbine unit can be changed according to different water head. As water head increased, the governor can automatically decrease the shut-up opening and the maximal active power limit, so as to ensure the hydraulic turbine generator switched on line quickly and effectively and run with safety.
⑩可在平板触摸显示屏上设置机组启动过程的加速特性。
Accelerating characteristic of hydraulic turbine unit startup process can be set through the touch screen(HMI).
CVZT调速器微机调节器主要硬件/组件配置一览表
The list of main hardware/components of microcomputer regulator in CVZT governor
序号 名 称 Serial number designation
高可靠PLC控制器
1
High reliable PLC controller 平板触摸式显示屏
2
Flat touch screen HMI 外围电路板及转换模块
3
Peripheral circuit board or signal transform module 机频变送器
4
Unit frequency transmitter 网频变送器
5
Net frequency transmitter 位移变送器
6
Displacement transducer
7 功放模块 6
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Beijing IWHR Technology Co.,Ltd Tel: 010-68781925,68576176
Hydraulic turbine governor technical document
8 9 10
Amplifier/driver module 交直流双重供电电源
Dual AC/ DC power supply 继电器、接插件等附件
Accessories such as relay and plug and socket 电气控制柜柜体
Electric control cabinet skid
2.2液压随动系统 Hydraulic servo system
其基本结构特征可归纳为先导控制、阀座主级、嵌入式联接。各组件之间采用模块化结构有机地组合在一起。液压随动系统的组件主要包括:
Its basic structure characteristic can be induced in the pilot control, main level valve and cartridge connection. Each component part is combined together in module structure. The hydraulic servo system mainly includes:
·高速开关（数字）阀
Digital (high frequency on/off) valve sets
·由逻辑插装阀基本单元组合而成的液压功率驱动主控阀组(起到主配的作用) The hydraulic power driver valve sets assembled with logical cartridge valve basic units (serving as main distributing valve function)
·开关机时间、紧急关机时间调整螺杆
The adjusting screw for open/close time and quick shutdown or emergency shutdown time of servomotor
·可换滤芯的滤油器并带有堵塞发讯器
The oil filter with replaceable filter core and signal sending instrument for oil filter clogged
·手动排气阀
Manual air releasing valve
·滤油器堵塞、失效或切断时旁通保护阀
The by-pass relief valve acting when the oil filter is clogged, invalid or being cutting off
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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
·开停机脉冲阀
The startup/shutdown pulse control valve ·紧急停机阀
The quick shutdown or emergency shutdown valve sets ·流量调节阀(流量－压差线性转换器)
Flow control valve (linear transformer between flow and pressure difference). 液压随动系统采用模块化结构，可根据使用需要进行灵活的组合和布置。整个液压控制系统具有很高的集成度，无任何杆件、钢丝绳及内部管道，降低了对用户的使用、维护要求。液压随动系统大量采用了符合ISO标准的液压元件，从元件到系统高度标准化、模块化、集成化、通用化，互换性好、标准化程度极高。
The mechanical hydraulic servo system is designed as module construction, can be flexible assembled and arranged according to the using purpose. Without pole, steel rope and internal pipe, the whole hydraulic control device is highly integrated, so the operating and maintaining demand to the user become lower. The mechanical hydraulic servo system adopted large quantities of hydraulic components matched the ISO standard, and have the characters of great standardization, modularization, integration, generalization and interchangeability.
主要特点：Main features include:
采用高速开关阀作为电液转换组件，可以实现容错控制。
Replacing the electro-hydraulic converter/transducer with some high frequency on/off valves, redundancy control becomes realizable.
②调速器的液压部分本身同时实现D/A转换与功率放大的功能，从而实现直接数字控制。
The hydraulic part of the governor has both the functions of D/A converter and power amplification, thus the direct digital control can be realized.
③元件对工作介质污染不敏感：高速开关阀的阀芯操作力大，耐油污能力和工作可靠性有很好的保证。
The hydraulic components are not sensitive to working medium contamination: the operating force on the valve core of high frequency valve is powerful, which guarantees the 8
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Beijing IWHR Technology Co.,Ltd Tel: 010-68781925,68576176
Hydraulic turbine governor technical document
anti-greasy performance and reliability of the components.
④采用逻辑插装技术：由组合结构的逻辑插装控制阀单元取代主配压阀，由于逻辑插装控制阀单元的工作位置是直接由数百公斤以上的液压作用力驱动，动作可靠性有了很大的提高，亦避免了传统的主配压阀存在的标准化程度低、性能一致性难以保证、互换性不好等不足。此外，逻辑插装控制阀单元采用高硬度的耐磨材料，即使长期工作也不会磨损失效。
The logical cartridge valve techniques: the main distributing valve is replaced by the combined logical cartridge control valves. The logic cartridge control valve is driven by hydraulic power which is more than hundreds of kilograms, therefore the action reliability is greatly improved. And those disadvantages of traditional main distributing valve are also avoided, such as the low standardization degree, the difficult consistency of capability and bad interchangeability. Besides, the logical cartridge control valve units contain abrasion resistance material of high rigidity, it can be hardly disabled after long-term working.
⑤高速开关阀采用多通道冗余结构，一旦某一个通道失灵，可自行切换，由正常通道来维持系统的稳定工作。
The high frequency valve is structured as redundancies construct with many channels. Once one (or more) of the channels disabled, it can automatically keep running through normally working channels.
⑥系统响应快捷、调节精度高、故障率低，提高了系统的可用度。
The system has quick response, high regulating precision and low failure rate, and its availability is also improved.
⑦ 即使电气部分彻底失灵，也能使主接力器保持当前开度不变，并自动地切为手动运行, 从而避免了故障的扩大以及由此造成的不良后果。
Even if the electrical part got to be absolutely failed, the main servomotor could be kept the gate opening stable, and the system is automatically switched to run manually, thus the fault extending and kickback of the fault could be avoided.
⑧该调速器液压部分除了能实现传统机械液压系统的所有功能外，还能实现容错降级运行，以及自动/手动/电手动之间无条件、无扰动的平滑切换。
The mechanical-hydraulic part of the governor can realize not only all functions of traditional mechanical-hydraulic equipment, but also fault tolerance running and smooth switching between auto/manual/electrical- manual running.
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Beijing IWHR Technology Co.,Ltd Tel: 010-68781925,68576176
Hydraulic turbine governor technical document
⑨容错控制功能与滤油工作回路的独特可靠设计从根本上保证了真正意义上的免维护。
Maintenance-free is ensured radically by special design of fault-tolerance control function and oil filter circuit.
⑩系统结构简单明了，内部液流阻力小，从元件到系统密封性能好，泄漏小，稳定工况下基本无油耗，极大地提高了系统的工作效率，延长了油泵-电机的寿命，节省了油源与厂用电消耗。
The system structure is concise, the friction of internal liquid flow is small. From the element to the system, the sealing is tight and with little leakage. The efficiency of the system is extremely increased and the service life of oil pump and electromotor are prolonged.
3 主要技术参数 The main technique parameters
·调节规律为适应式变参数PID
Regulating rules: Adaptable and variable parameter PID ·测频方式为残压测频或残压 + 齿盘测速；
Frequency/speed measuring method: PT voltage frequency measuring or PT voltage + toothed disc speed measuring;
机组频率信号：
The hydraulic turbine unit frequency/speed signal: 一路取自发电机机端电压互感器
One way signal comes from PT voltage of generator; 信号电压正常范围：（0.6~100）V正弦波
The normal range of signal voltage: 0.6~100V sine wave 正常测频范围：（5~100）Hz
The normal range of frequency measurement: 5~100Hz 测频分辨率：≤±0.001Hz
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China Institute of Water Resources and Hydropower Research
Beijing IWHR Technology Co.,Ltd Tel: 010-68781925,68576176