Optimal long-term operation of a multireservoir power system for critical water conditions

1987 ◽  
Vol 53 (3) ◽  
pp. 377-393 ◽  
Author(s):  
G. S. Christensen ◽  
S. A. Soliman
Keyword(s):  
Power System ◽  
Term Operation ◽  
Water Conditions

Research on the Improvement of OCT Used in Power System

2013 ◽  
Vol 385-386 ◽  
pp. 995-998
Author(s):  
Hong Peng He ◽  
Jun Liu
Keyword(s):  
Power System ◽  
Solenoid Coil ◽  
Broad Application ◽  
Term Operation ◽  
Current Transducer ◽  
Operation Stability ◽  
The Magnetic Field ◽  
Application Prospects ◽  
Optical Structure

Smart grid puts forward higher requirements for measurement equipments, so optical current transducer (OCT) used in power system possess broad application prospects. In this paper, magnetism gathering technology is applied in the design of OCTs optical structure and the magnetism gathering optical structure based on solenoid coil is proposed. Compared with traditional bulk optical structure, this structure simplifies the optical structure significantly. Results of simulation and field operation indicate that this structure can not only enhance the magnetic field created by the measured current significantly, but also improve the long-term operation stability of OCT.

scholarly journals A Hybrid Power System for a Permanent Colony on Mars

2021 ◽  
Vol 2021 ◽  
pp. 1-16
Author(s):  
Daniel Vázquez Pombo
Keyword(s):  
Power System ◽  
Holistic Approach ◽  
Daily Basis ◽  
Electrical Network ◽  
Hybrid Power System ◽  
Term Operation ◽  
Hybrid Power ◽  
Available Energy ◽  
Definition Of

Since the dawn of humanity, people have contemplated the sky exploring the firmament. However, it was not until the twentieth century that humans were able to leave Earth and visit other celestial objects. In fact, nowadays, rovers roam Mars on a daily basis pushing the limits of science in a seemingly routine fashion. It is just a matter of time before humanity sets foot on the red planet with the aim of establishing a permanent colony. Such a complex endeavour demands continuous research, simulation, and planning. Consequently, this paper is aimed at starting a proper discussion about the configuration and design of a suitable power system for said Martian outpost. An initial literature review leads to the definition of a reference colony and its growing stages, which is followed by a revision of available energy-related technologies leading to a concrete design of a suitable electrical network. Lastly, the proposed hybrid power system is evaluated in terms of its reliability during the long-term operation under the extreme environmental conditions of Mars. The reference colony starts as an unmanned mission, as robots will prepare the selected location for the first human inhabitants. Later, it suffers several upgrades in size reaching a permanent population of 100 people. Therefore, a holistic approach is needed when designing the power system in order to ensure the continuous supply of the colony. Finally, the selected topology of the colony’s power system is presented.

Novel Indexes and Method for Power Grid Blackout Risk Assessment

2014 ◽  
Vol 556-562 ◽  
pp. 6665-6668
Author(s):  
Xiao Jun Lu ◽  
Kai Wen Zeng ◽  
Shi Wu Liao ◽  
Jin Yu Wen ◽  
En Lu ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Power System ◽  
Risk Evaluation ◽  
Power Grid ◽  
Assessment Method ◽  
Actual System ◽  
Term Operation ◽  
Incident Investigation ◽  
Risk Assessment Method

A set of blackout risk assessment indexes is established according to Electricity Accident (Incident) Investigation Procedures of China Southern Power Grid (CSPG) (pilot) and Guide on Operational Risk Evaluation of CSPG, which can calculate risk values of electricity accidents (incidents). The calculation process is discussed in detail. Based on the proposed indexes and OPA blackout model, a blackout risk assessment method for power system is put forward, with which blackout risk for all 500kV buses in Guangdong Power Grid are evaluated. Weak areas in power system are identified and their inducements are analyzed. The identification results accord with actual system long-term operation experience, which verifies the correctness of the indexes and method.

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