Indirect Current Control Algorithm for Utility Interactive Inverters in
... voltage of the DG system may become unstable because of transient phenomena. The voltage stability will be worsen when the main grid is tripped by abrupt faults such as voltage sags/swells or black out. When islanding detection is delayed by such factors as non-detection zone (NDZ), communications b ...
... voltage of the DG system may become unstable because of transient phenomena. The voltage stability will be worsen when the main grid is tripped by abrupt faults such as voltage sags/swells or black out. When islanding detection is delayed by such factors as non-detection zone (NDZ), communications b ...
Lighting Control System Guideform
... order to control more than 12 relays. Each slave module added will control an additional 12 relays. There will be a delay of 1 second between each slave module in order to limit rush current. 2.1.5.1.3.8. The modules will detect abnormal signal coming from defect devices connected on its inputs. The ...
... order to control more than 12 relays. Each slave module added will control an additional 12 relays. There will be a delay of 1 second between each slave module in order to limit rush current. 2.1.5.1.3.8. The modules will detect abnormal signal coming from defect devices connected on its inputs. The ...
Analog Devices Welcomes Hittite Microwave Corporation
... The HMC321LP4 & HMC321LP4E are broadband nonreflective GaAs MESFET SP8T switches in low cost leadless surface mount packages. Covering DC to 8 GHz, this switch offers high isolation and low insertion loss. This switch also includes an on board binary decoder circuit which reduces the required logic ...
... The HMC321LP4 & HMC321LP4E are broadband nonreflective GaAs MESFET SP8T switches in low cost leadless surface mount packages. Covering DC to 8 GHz, this switch offers high isolation and low insertion loss. This switch also includes an on board binary decoder circuit which reduces the required logic ...
Distributed control system
A distributed control system (DCS) is a control system for a process or plant, wherein control elements are distributed throughout the system. This is in contrast to non-distributed systems, which use a single controller at a central location. In a DCS, a hierarchy of controllers is connected by communications networks for command and monitoring.Example scenarios where a DCS might be used include: Chemical plants Petrochemical (oil) and refineries Boiler controls and power plant systems Nuclear power plants Environmental control systems Water management systems Metallurgical process plants Pharmaceutical manufacturing Sugar refining plants Dry cargo and bulk oil carrier ships Formation control of multi-agent systems