1756-ENBT
1756-ENBT
1756-ENBT
大型火电厂用DCS除去上述趋势共性外,还有它固有的个性:
■汽机、锅炉等控制及安全要求复杂,燃料、水、灰等相关辅助设施庞大,产生的电能受电网调度要求高等,造成用于电厂的DCS应具有回路反馈控制、顺序控制、混合控制等复杂控制功能,具有驱动多种执行机构的要求,完成复杂计算能力及先进控制(APC)功能。
■由于FSSS对作为事件顺序的操作记录的要求很高,而且可能是多系统组合来完成该项功能,所以SOE的带有时间戳的开关量输入设备及相关功能是必须具备的。在时间同步方面,除了DCS系统内时钟同步方式,还有目前正兴起的GPS卫星时间同步方式。
◆ 企业名称:厦门泰尼电气有限公司
◆ 企业性质: 有限责任公司
◆ 主营业务:DCS,PLC
◆ 经营模式: 贸易
◆ 贸易地区: 全国
◆ 联系人: 小廖女士)
◆ :
◆ 联系br/>
◆ QQ:1490371370
◆ 传真: (备注“01008”收)
◆ E-mail:
◆ 邮政编码: 361026
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Agilent HP N9330B 25MHz-4GHz Handheld Cable &
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Agilent HP 53310A Modulation Domain Analyzer
Agilent HP 43521A Downconverter Unit
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Agilent-HP E7919A 1000BASE-X (GBIC) XR Test Card
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Agilent HP 1662E 68 CH 100MHz Timing logic Analyzer
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Tektronix 2782 High Performance Microwave Spectrum Analyzer
Agilent HP DSO6014L DSO Oscilloscope
Tabor Electronics WW5064 Arbitrary Waveform Generators
Agilent HP 83485A Optical Electrical Channel 20Ghz
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Keithley 238 High-Current Source-Measure Unit
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Agilent - HP J6801B /J6810B/J6828A/ Distributed
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Nettest CMA4000 OTDR Mainframe
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Aaronia HyperLOG 30180 Antenna
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Agilent HP 8752A Network Analyzer, 300kHz-1.3GHz
Agilent HP 8752C Vector Network Analyzer
Agilent E6432A VXI Microwave Synthesizer - Parts/Repair
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■由于电厂的主要产品“电能”的特殊性及电网调度和电业管理的要求,电厂已推行“火力发电厂厂级监控信息系统技术要求”,电厂监控信息管理系统SIS的管控一体化方式是符合国情的技术,所以DCS与之衔接问题应该进一步落实。
■电厂机电设备多,厂用电管理十分重要,关于仪控、电控一体化,在电厂建设中电工专业要积极地将其纳入全厂大系统中,所以DCS应适应其要求,在I/O硬件及扫描周期、人机界面及增大系统容量等方面扩大功能,加速仪控、电控一体化的进程。
大型火电厂建设周期短,对主仪表供应商(MIV)要求能完成“交钥匙”工程,所以MIV(或MAC主自控承包商)不仅是DCS和仪表的制造商,而且应具有电厂建设的工程经验,应该是集制造商、集成商、工程公司于一身。而且今后MIV方式会逐渐流行。另外,为了大型火电厂“瘦身”,专业的电厂自动化维修服务工程公司也应得到发展。所有这些将深刻地影响着DCS制造业的发展
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