scholarly journals Power Distribution Method for a Parallel Hydraulic-Pneumatic Hybrid System using a Piecewise Function

Energy ◽  
2021 ◽  
pp. 121033
Author(s):  
Chunhui Nie ◽  
Yimin SHAO ◽  
Chris K. Mechefske ◽  
Min Cheng ◽  
Liming Wang
Keyword(s):  
Hybrid System ◽  
Power Distribution ◽  
Distribution Method ◽  
Piecewise Function

Studies on Power Distribution of AC and VSC-HVDC Hybrid System for Wind Power Integration

2013 ◽  
Vol 676 ◽  
pp. 204-208 ◽  
Author(s):  
Yue Qiang Zhang ◽  
Yong Qiang Zhu ◽  
Yan Zhang Liu
Keyword(s):  
Wind Power ◽  
Hybrid System ◽  
Power Distribution ◽  
Power Loss ◽  
Reactive Power ◽  
Good Method ◽  
Transmission Capacity ◽  
Distribution Strategy ◽  
Wind Power Integration ◽  
Set Up

In order to study the power distribution strategy of AC and VSC-HVDC hybrid system for wind power integration, a strategy based on improving the transmission capacity of AC lines and reducing the power loss is proposed. By use of the decouple control of active and reactive power of the VSC-HVDC, the transmission capacity of the AC lines can be improved by absorbing enough reactive power, AC lines have the priority before they have reached their transmission limit, meanwhile the VSC-HVDC acts as STATCOM. When the AC lines have been fully used, the VSC-HVDC will act as STATCOM as well as transmit the rest power. A DFIG wind power integration system is set up by use of PSCAD/EMTDC, the simulation results show that the power distribution strategy can realize the wind power integration successfully and reduce the power loss, it can regard as a good method for wind power integration.

scholarly journals Soft-Switching Full-Bridge Converter with Multiple-Input Sources for DC Distribution Applications

Symmetry ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 775
Author(s):  
Sheng-Yu Tseng ◽  
Jun-Hao Fan
Keyword(s):  
Conversion Efficiency ◽  
Power Distribution ◽  
Distribution System ◽  
Distribution Systems ◽  
Soft Switching ◽  
Maximum Output ◽  
Power Distribution Systems ◽  
Distribution Method ◽  
Dc Distribution ◽  
Multiple Input

Due to the advantages of power supply systems using the DC distribution method, such as a conversion efficiency increase of about 5–10%, a cost reduction of about 15–20%, etc., AC power distribution systems will be replaced by DC power distribution systems in the future. This paper adopts different converters to generate DC distribution system: DC/DC converter with PV arrays, power factor correction with utility line and full-bridge converter with multiple input sources. With this approach, the proposed full-bridge converter with soft-switching features for generating a desired voltage level in order to transfer energy to the proposed DC distribution system. In addition, the proposed soft-switching full-bridge converter is used to generate the DC voltage and is applied to balance power between the PV arrays and the utility line. Due to soft-switching features, the proposed full-bridge converter can be operated with zero-voltage switching (ZVS) at the turn-on transition to increase conversion efficiency. Finally, a prototype of the proposed full-bridge converter under an input voltage of DC 48 V, an output voltage of 24 V, a maximum output current of 21 A and a maximum output power of 500 W was implemented to prove its feasibility. From experimental results, it can be found that its maximum conversion efficiency is 92% under 50% of full-load conditions. It was shown to be suitable for DC distribution applications.

Research on Electric Power Distribution Method

2013 ◽  
Vol 373-375 ◽  
pp. 2288-2291
Author(s):  
Hua Ren Zhou ◽  
Yue Hong Qian ◽  
Ze Qing Yao ◽  
Zi Sen Mao
Keyword(s):  
Electric Power ◽  
Electricity Market ◽  
Power Distribution ◽  
Unit Price ◽  
Search Model ◽  
Ramp Rate ◽  
Optimal Search ◽  
Distribution Method ◽  
Electric Power Distribution ◽  
Market Rules

According to the unit price, the section capacity section and the data of ramp rate, in accordance with the electricity market rules, the pushing method and optimal search model of the next time the output of the unit distribution plan are established.

scholarly journals Optimal power distribution method for energy storage system based on available capacity

2020 ◽  
Author(s):  
Liu Gege
Keyword(s):  
Energy Storage ◽  
Power Distribution ◽  
Storage System ◽  
Optimization Method ◽  
Energy Storage System ◽  
Distribution Method ◽  
Battery Energy Storage ◽  
Optimal Power ◽  
The Difference ◽  
Battery Energy

Abstract In order to eliminate the difference of the state of charge (SOC) among parallel battery energy storage systems, an optimization method of power distribution based on available capacity is proposed in this paper. The objective function and constraints are established to realize the optimal power allocation of battery energy storage and to improve the stability of the energy storage system. The simulation and experimental results are presented. The results have proved the corrective and effective of the method.

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