Journal of Guangxi Normal University(Natural Science Edition) ›› 2019, Vol. 37 ›› Issue (2): 52-59.doi: 10.16088/j.issn.1001-6600.2019.02.007

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Study on the Power Allocation of Power Generators and Unbalanced Development of Loadson Power Grids

CHEN Siyu, ZOU Yanli*, ZHOU Jian, TAN Huazhen   

  1. College of Electronic Engineering, Guangxi Normal University, Guilin Guangxi 541004, China
  • Received:2018-06-06 Online:2019-04-25 Published:2019-04-28

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Abstract: Firstly, power allocation strategies of power generators in a grid are studied in this paper. Three allocation schemes (PE, DC and CC) of generator power are researched. For the allocation scheme of PE,the same power is generated by each generator. For DC,the power of a generator is allocated according to its degree centrality.For CC,the power of a generator is allocated according to its closeness centrality.The simulations are carried out in IEEE14 and IEEE39 standard test networks.The advantages and disadvantages of the three schemes are compared from the perspective of the synchronization and stability of the power grids.Study shows that the system synchronization and stability performance is the best when the generator power of a grid is allocated according to DC mode,the system synchronization and stability performance is the worst when the generator power is allocated according to PE mode, and the CC mode is in the middle among the three schemes. Secondly, the influence of the unbalanced development of power grid loads on a power grid performance is studied.Study shows that with more load nodes the power consumption increases and the synchronization and stability performance of power system decreases faster with more unbalanced distribution of power.Therefore,the unbalanced development of load and power consumption reduces the synchronization and stability of power system.

Key words: power grid, power, power station, load, synchronization, stability

CLC Number: 

  • TM74
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