scholarly journals Hybrid Power System Optimization in Mission-Critical Communication

Electronics ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 1971
Author(s):  
Sonia Leva ◽  
Francesco Grimaccia ◽  
Marco Rozzi ◽  
Matteo Mascherpa
Keyword(s):  
Power System ◽  
Power Supply ◽  
System Optimization ◽  
Economic Benefits ◽  
Radio System ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Grid Connection ◽  
Mission Critical ◽  
Real Scenario

One of the common problems faced by Telecommunication (TLC) companies is the lack of power supply, usually for those appliances with scarce chances of grid connection often placed in remote zones. This issue is more and more critical if the radio network has the specific task of guaranteeing the so-called “mission-critical communications”. This manuscript aims to propose and assess a viable solution to optimize the power supply and maintenance operations required to assure the proper functionality in such critical and remote sites. In particular, the main goals are defining a method to select the critical sites in an extensive and composite radio system and designing the hybrid power system in a way to improve the service availability and technical-economic benefits of the whole mission-critical TLC system. Finally, the proposed method and related procedures are tested and validated in a real scenario.

The Design of an Independent Power Supply Applied to the Isolated Island

2012 ◽  
Vol 614-615 ◽  
pp. 1759-1765
Author(s):  
Yi Cheng Chen ◽  
Zhi Xin Wang
Keyword(s):  
Environmental Factors ◽  
Power System ◽  
Power Supply ◽  
Power Sources ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Renewable Power ◽  
Independent Power Supply ◽  
Electricity Load ◽  
Power Wave

This article aims to make a design of the power supply for an isolated island that has difficulty in realizing the connection with the mainland power grid. An independent hybrid power system consisting of varieties of renewable power sources including solar power, wind power, wave energy and batteries are introduced. This system is dedicated to make the forecast of the electricity load of the island according to the environmental factors and the electricity demand of the island. Then it builds the basic framework and models of hybrid power system on the basis of the forecast and finds out the appropriate method to optimize the power supply.

Modeling and Practice of Wind/PV/Pumped-Storage Hybrid System

2014 ◽  
Vol 541-542 ◽  
pp. 892-897 ◽  
Author(s):  
Peng Fei Yi ◽  
Jian Zhang ◽  
Zhao Yuan Zhang
Keyword(s):  
Power System ◽  
Power Supply ◽  
Hydro Power ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Investment Cost ◽  
Important Sense ◽  
Pumped Storage ◽  
Installed Capacity ◽  
Supply Reliability

This paper built a hybrid power system, including wind power, PV power and hydro power generation. It is presented mathematical model for the optional design of hybrid power system. The object of the model are to minimize the initial investment cost, power supply reliability and power complementation. The constraint condition are included system working, installed capacity and load balance, So the capacity matching model is established. A stand-alone photovoltaic of pasturing area is calculated by using the model. The result shows that the optional design model have an important sense, which improved power supply reliability, complementary characteristics of hybrid power and reduce the total cost of the system.

Electricity Price of Hybrid Power System and Decision Making of Renewable Energy Investment Capacity

2018 ◽  
Vol 6 (3) ◽  
pp. 193-213 ◽  
Author(s):  
Jiaping Xie ◽  
Weisi Zhang ◽  
Yu Xia ◽  
Ling Liang ◽  
Lingcheng Kong
Keyword(s):  
Renewable Energy ◽  
Power System ◽  
Power Supply ◽  
Electricity Market ◽  
Sensitivity Coefficient ◽  
Electricity Price ◽  
Supply Side ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Installed Capacity

Abstract In the existing electricity market, the traditional power suppliers and renewable energy generators coexist in the power supply side. In the power supply side, renewable energy generators generate power by wind and other natural conditions, leading renewable energy output a certain randomness. However, the low marginal generating cost and the reduction of carbon emissions, and thus brings a certain advantage for renewable energy compared to alternative energy. Electricity, as a special commodity, stable and adequate power supply is a necessary guarantee for economic and social development. Power shortage situation is not allowed in the power system, and the extra power needs to be handled for the purpose of safety. In this paper, the hybrid power generated by renewable energy generators and traditional energy generators is used as power supply, and then the electricity market sells hybrid power to electricity consumers, the hybrid power system determines the optimal daytime price, nighttime price, and the optimal installed capacity of the renewable energy suppliers. We find that the installed capacity of renewable energy increases first and then decreases with the increase of the price sensitivity coefficient of traditional energy supply. Electricity demand is negatively related to electricity price in the current period, and is positively related to price in the other period. The average price of day and night is only related to the total potential demand of day and night and the total generation probability of renewable energy. The price difference between daytime and nighttime is positively related to potential electricity demand, and negatively related to the sensitivity coefficient of electricity price.

scholarly journals Power Management of AC/DC Hybrid Distribution Network With Multi-Port PET Considering Reliability of Power Supply System

2021 ◽  
Vol 9 ◽  
Author(s):  
Xinxing Xu ◽  
Wentao Huang ◽  
Yan Hu ◽  
Nengling Tai ◽  
Yaming Ji ◽  
...  
Keyword(s):  
Power System ◽  
Power Electronics ◽  
Power Supply ◽  
Sequential Monte Carlo ◽  
High Efficiency ◽  
Distribution Network ◽  
Control Mode ◽  
Automation System ◽  
Hybrid Power System ◽  
Hybrid Power

In the current distribution network, photovoltaic, wind power, energy storage, and other distributed energy are widely connected, and the proportion of generalized DC load is rapidly increasing. With the development of power electronics technology, using multi-port power electronic transformer (PET) to achieve high-efficiency access of large-capacity AC/DC source and load is the current research hotspot, and AC / DC hybrid power supply is inevitable. The introduction of a large number of power electronics and the flexible coordinated control and complementary fault-tolerant advantages of PET bring challenges to the operation and maintenance management of the AC/DC hybrid power system. In this paper, the structure of the AC/DC hybrid power system with the multi-port PET cluster is introduced. Based on the idea of hierarchical and partitioned control, a three-layer and multi-time scale control mode of integrated automation system, PET cluster and PET controller is proposed; Aiming at the problem of reliability evaluation, a sequential Monte Carlo simulation method is proposed to simulate the AC/DC hybrid power system with the multi-port PET cluster. The influence of multi-port PET parallel cluster mode and port capacity limitation on the reliability of the power system is analyzed, and the effectiveness of the model and algorithm is verified. Finally, an example is given to verify that the proposed structure is conducive to improving the utilization level of renewable energy in the distribution network.

Research of the Structure and Control Strategy for Wind-Solar Hybrid Power System

2013 ◽  
Vol 385-386 ◽  
pp. 911-914
Author(s):  
Ju Yuan Jiang ◽  
Wei Da Yang ◽  
Nai Tan Lin
Keyword(s):  
Control System ◽  
Power System ◽  
Control Strategy ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Grid Connection ◽  
Remote Terminal ◽  
World Energy ◽  
Remote Terminal Unit ◽  
Two Stages

Under the background of growing world energy shortage people start to realize the potentiality of renewable resources. Wind-solar hybrid power system as its stability and economy is with widespread use now. This paper according to the character of wind power and photovoltaic power generation, briefly introduces the wind-solar hybrid power system, shows the design of a remote control system based on the remote terminal unit (RTU). The control strategy of battery charging and grid-connection is carried out. There are two stages of control system which include sensors RTU communication network and terminal pc. The result of the study can be used to guide the research of this type of wind-solar hybrid power system.

Damping of Frequency Fluctuations of Hybrid Power System by Variable Deloaded Operation of PMSG Based Offshore Wind Farm

2019 ◽  
Vol 139 (4) ◽  
pp. 259-268
Author(s):  
Effat Jahan ◽  
Md. Rifat Hazari ◽  
Mohammad Abdul Mannan ◽  
Atsushi Umemura ◽  
Rion Takahashi ◽  
...  
Keyword(s):  
Power System ◽  
Wind Farm ◽  
Offshore Wind ◽  
Offshore Wind Farm ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Frequency Fluctuations
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