YWT微機(jī)液壓調(diào)速器采用高性能可編程控制器作為硬件主體，與合適的機(jī)械液壓隨動(dòng)系統(tǒng)相配合，實(shí)現(xiàn)水輪發(fā)電機(jī)組的轉(zhuǎn)速調(diào)節(jié)與出力控制。

可編程邏輯控制器是一種以微處理器為基礎(chǔ)，綜合了現(xiàn)代計(jì)算機(jī)技術(shù)自動(dòng)控制技術(shù)和通信技術(shù)發(fā)展起來的一種通用的工業(yè)自動(dòng)控制裝置體積小、功能強(qiáng)、可靠性高、程序設(shè)計(jì)簡(jiǎn)單、維護(hù)方便等優(yōu)點(diǎn)，特別適應(yīng)惡劣工業(yè)環(huán)境。

主要技術(shù)指標(biāo)

1、機(jī)組電網(wǎng)頻率信號(hào)：信號(hào)電壓正常工作范圍：0.5-130V；正常測(cè)頻范圍：5-100HZ；測(cè)頻精度：≤±0.002HZ

2、導(dǎo)葉位置反t貴信號(hào)：操作器提供電壓：+24V；導(dǎo)葉位置反1l貴電壓：導(dǎo)葉開度0-100%對(duì)應(yīng)0.5-10V。

3、開關(guān)量輸入信號(hào)：斷路器位置狀態(tài)開機(jī)信號(hào)接點(diǎn)、停機(jī)信號(hào)接點(diǎn)、導(dǎo)葉開度增加接點(diǎn)、導(dǎo)葉開度減少接點(diǎn)。

主要特點(diǎn)

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(shí)間MTBF≥25000小時(shí)。

2、具有頻率(轉(zhuǎn)速)、開度調(diào)節(jié)模式，適應(yīng)水電廠不同運(yùn)行工況的要求。

3、頻率(轉(zhuǎn)速)的測(cè)量由PLC實(shí)現(xiàn)，外圍電路簡(jiǎn)単，提高了整機(jī)的抗干擾能力及可靠性。

4、頻率調(diào)節(jié)模式采用PID調(diào)節(jié)規(guī)律，開度采用PID調(diào)節(jié)規(guī)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.