YWT微機液壓調速器采用高性能可編程控制器作為硬件主體，與合適的機械液壓隨動系統相配合，實現水輪發電機組的轉速調節與出力控制。

可編程邏輯控制器是一種以微處理器為基礎，綜合了現代計算機技術自動控制技術和通信技術發展起來的一種通用的工業自動控制裝置體積小、功能強、可靠性高、程序設計簡單、維護方便等優點，特別適應惡劣工業環境。

主要技術指標

1、機組電網頻率信號：信號電壓正常工作范圍：0.5-130V；正常測頻范圍：5-100HZ；測頻精度：≤±0.002HZ

2、導葉位置反t貴信號：操作器提供電壓：+24V；導葉位置反1l貴電壓：導葉開度0-100%對應0.5-10V。

3、開關量輸入信號：斷路器位置狀態開機信號接點、停機信號接點、導葉開度增加接點、導葉開度減少接點。

主要特點

1、采用可編程控制器作為硬件主體，可靠性高，平均無故障時間MTBF≥25000小時。

2、具有頻率(轉速)、開度調節模式，適應水電廠不同運行工況的要求。

3、頻率(轉速)的測量由PLC實現，外圍電路簡単，提高了整機的抗干擾能力及可靠性。

4、頻率調節模式采用PID調節規律，開度采用PID調節規律。

YWT microcomputer hydraulic speed governor

YWT microcomputer hydraulic speed governor adopts high-performance programmable controller as the main body of the hardware ａnd cooperates with appropriate mechanical hydraulic follow-up system to realize speed regulation ａnd output control of hydro-generator.

Programmable logic controller is a microprocessor-based, integrated modern computer technology automatic control technology ａnd communication technology developed a common industrial automatic control device Small size, strong function, high reliability, simple program design , Easy maintenance, etc., especially to adapt to harsh industrial environments.

Main Specifications

1, the unit grid frequency signal: the signal voltage normal working range: 0.5-130V; normal frequency measurement range: 5-100HZ; frequency measurement accuracy: ≤ ± 0.002HZ

2, guide vane position anti-t expensive signal: the operator to provide voltage: +24 V; guide vane position anti-1l expensive voltage: guide vane opening 0-100% corresponds to 0.5-10V.

3, the switch input signal: circuit breaker position state start signal contact, stop signal contacts, guide vane opening increased contacts, vane opening to reduce the contact.

main feature

1, the use of programmable logic controller as the main hardware, high reliability, MTBF ≥ 25000 hours MTBF.

2, with frequency (speed), opening adjustment mode, to adapt to different operating conditions of hydropower plant requirements.

3, the frequency (speed) measurement by the PLC to achieve, the external circuit simple, improve the machine＇s anti-interference ability ａnd reliability.

4, the frequency adjustment mode using PID regulation law, opening the use of PID regulation.