5SHX1445H0001可控硅模塊,3BHL00391P0101中文PDF用戶手冊(cè)
一個(gè)具備抗 EMI 干擾功能的的可靠通信解決方案,從而盡可能降低干擾所帶來(lái)的影響。光纖電纜具備長(zhǎng)距離抗 EMI 性能,是將數(shù)據(jù)從電力設(shè)備傳輸至控制中心的不二之選。此外,互聯(lián)設(shè)備也應(yīng)配備其他保護(hù)機(jī)制,例如雙電源和雙端口輸入,從而在某一電源或端口失效時(shí),仍能確保設(shè)備不間斷運(yùn)轉(zhuǎn)。
5SHX1445H0001可控硅模塊,3BHL00391P0101中文PDF用戶手冊(cè)第二,通信系統(tǒng)需能快速恢復(fù),盡可能縮短故障停機(jī)時(shí)間。電力質(zhì)量監(jiān)控設(shè)備多以串口連接,并使用 Modbus RTU 等工業(yè)協(xié)議。然而,EMS 通常使用以太網(wǎng) OT/IT 協(xié)議,如 Modbus TCP、SNMPv3、BACnet/IP。所以就需要使用協(xié)議網(wǎng)關(guān)來(lái)實(shí)現(xiàn)上述設(shè)備和系統(tǒng)間的通信。
如通信出錯(cuò),不能及時(shí)送達(dá)電力質(zhì)量狀態(tài),運(yùn)維人員就難以定位異常并采取對(duì)策。同時(shí),工程師很難在缺少關(guān)鍵信息的前提下分析問(wèn)題根源,基于不同通信協(xié)議的系統(tǒng)設(shè)備進(jìn)行故障排除也困難重重。因此,在為通信系統(tǒng)選擇協(xié)議網(wǎng)關(guān)時(shí),要確保配有故障排除工具,如此才能助您及時(shí)發(fā)現(xiàn)故障原因并盡快恢復(fù)系統(tǒng)運(yùn)轉(zhuǎn)。
第三,妥善規(guī)劃通信網(wǎng)絡(luò),安全便捷上傳電力數(shù)據(jù)。市面上有各式監(jiān)測(cè)電力穩(wěn)定性的傳感器。在開發(fā)能源管理系統(tǒng)的應(yīng)用時(shí),您除了需要收集電力相關(guān)數(shù)據(jù),環(huán)境數(shù)據(jù)也不可或缺,確保在不受環(huán)境干擾的情況下穩(wěn)定供電。電力和環(huán)境傳感器接口眾多,因此要選擇適合機(jī)柜狹小空間、易于安裝維護(hù)的互聯(lián)方案。
網(wǎng)絡(luò)安全也是網(wǎng)絡(luò)規(guī)劃的考量之一。如開關(guān)柜和 UPS 與公共網(wǎng)絡(luò)相連接,就會(huì)使您的系統(tǒng)暴露在潛在網(wǎng)絡(luò)威脅之下。因此,需加強(qiáng)對(duì)聯(lián)網(wǎng)設(shè)備的保護(hù),以防黑客通過(guò)薄弱點(diǎn)侵入系統(tǒng)。在開關(guān)電源設(shè)計(jì)中,主功率有多個(gè)開關(guān)管時(shí)其驅(qū)動(dòng)必須采用隔離設(shè)計(jì),比如多管串聯(lián)反激、雙管正激、LLC等多開關(guān)管的拓?fù)渲校_關(guān)管驅(qū)動(dòng)均需要做隔離處理。當(dāng)前市面上已經(jīng)有較成熟的自舉驅(qū)動(dòng)芯片來(lái)滿足設(shè)計(jì)需求,但是其驅(qū)動(dòng)芯片的耐壓等級(jí)受限,最高電壓只能到600V左右。在更高輸入電壓等級(jí)的應(yīng)用場(chǎng)合中,比如光伏電源、SVG輔助電源等輸入電壓達(dá)到1500V甚至更高的電源產(chǎn)品設(shè)計(jì)時(shí),驅(qū)動(dòng)芯片的方案就不再適用,只能選擇磁隔離變壓器驅(qū)動(dòng)電路。因此磁隔離驅(qū)動(dòng)電路的設(shè)計(jì)極其重要。其中,電容C1為輸入端直流隔離電容,C3為開關(guān)管QM等效的輸入電容。電容電壓的參考方向如圖1所示,T1為磁隔離驅(qū)動(dòng)變壓器。S1是脈沖寬度調(diào)制驅(qū)動(dòng)器(PWM Driver)的輸出信號(hào)波形,S2是變壓器輸入端的波形
The motion of each motor is controlled by the industry-specific computer and motion control card. The industry-specific computer is the core part of the LED solid crystal machine control system, which is mainly responsible for the management of human-computer interaction interface and the real-time monitoring of the control system, issuing motion instructions, and effectively processing the information collected and transmitted by the control card, Make each link realize the expected movement, and ensure the accuracy detection of mechanical position and the safety of operation.
Under the control of the industry-specific computer on the windows platform, the LED solid crystal machine system can make full use of hardware resources, greatly speed up the data processing speed and improve the operation efficiency of the system.
System block diagram:
system configuration
Industrial chassis: 4U Radial Gate industrial chassis
◆ 4U, 19 inch, shelf mountable, European and American style, in line with eiars-310c standard
◆ up to 5 3.5 "drives can be installed
◆ the front panel is locked to prevent misoperation,