Penetration Level Permission of Small Hydropower Station in Distributed Network

2017 ◽  
pp. 560-565
Author(s):  
Xin Su ◽  
Xiaotian Xu ◽  
Genghuang Yang ◽  
Xiayi Hao
Keyword(s):  
Hydropower Station ◽  
Distributed Network ◽  
Small Hydropower

Detection of Harmonic and Inter-harmonic Caused by Synchronization of Small Hydropower Station

2013 ◽  
Vol 12 (5) ◽  
pp. 1004-1010
Author(s):  
Li Jia-Sheng ◽  
Wang Jia-Jia ◽  
Tian Wang-Lan ◽  
Hu Sai-Chun ◽  
Xiao Wei-Chu
Keyword(s):  
Hydropower Station ◽  
Small Hydropower

scholarly journals Study on generation capacity of small hydropower stations in distribution network

2021 ◽  
Vol 71 (1&2) ◽  
pp. 5
Author(s):  
Genghuang Yang ◽  
Wenbin Sun ◽  
Xiayi Hao ◽  
Yingmei Zhang ◽  
Li Yang ◽  
...  
Keyword(s):  
Power System ◽  
Distribution Network ◽  
Relay Protection ◽  
Hydropower Station ◽  
Small Hydropower ◽  
Current Variation ◽  
Generation Capacity ◽  
The Difference ◽  
Hydropower Stations

Small hydropower station, when producing power energy to power system through the distribution network, may lead to the change of the detected current in relay protection and the protection coverage. In this paper, IEEE7 based network is formed in the platform of PSCAD/EMTDC to analyze the effects of distribution network in current protection when a small hydropower station is linked in. The running of relay protection in Section I and II is simulated to obtain the difference of current variation of network with or without small hydropower station. Also the key parameters are calculated to point out the maximum generation capacity of the small hydropower station in case of reliable and sensitive current protection.

Application of Fuzzy Recognition Model for the Diversion Structures Safety Evaluation at Small Hydropower Stations

2014 ◽  
Vol 687-691 ◽  
pp. 3686-3690
Author(s):  
Ming Li ◽  
Xue Feng Yu ◽  
Yuan Dong Wei
Keyword(s):  
Safety Evaluation ◽  
Hydropower Station ◽  
Hydroelectric Power Station ◽  
Hydroelectric Power ◽  
Power Station ◽  
Small Hydropower ◽  
Recognition Model ◽  
Fuzzy Recognition ◽  
Hydropower Stations

In this passage is about the safety evaluation on the conveyance structure of small hydroelectric power station. Applying Binary comparative indicators to determine the weights and fuzzy recognition model on the conveyance structure of small hydroelectric power station’s assessment. Compared other models with fuzzy recognition model which will be explained in detail in the next section on a specific small hydropower station. The results show that the fuzzy recognition model is feasible and effective on safety evaluation on the conveyance structure of the hydroelectric power station.

The Application of Monte Carlo Simulation in Present Earning Value Method — Case Study of a Medium Hydropower Station

2013 ◽  
Vol 732-733 ◽  
pp. 731-737
Author(s):  
Ai Lan Zhang ◽  
Song Jiang Wang
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Hydropower Station ◽  
Small Hydropower ◽  
Hydropower Stations ◽  
Personnel Control ◽  
Assessment Results

Processing the parameters overly simplistic will leave space for overestimating or underestimating artificially when we assess the assets of medium and small hydropower stations using present earning value method. And absolute assumptions often affect the adequacy of the assessment results, also the persuasive and credibility. Monte Carlo simulation can determine the wave of parameters in present earning value method, so as to improve the persuasion and credibility of assessment results and reduce the personnel control.

An Equivalent Modeling for Synthesis Load of Distributed Network with Small Hydropower

2014 ◽  
Vol 666 ◽  
pp. 119-124
Author(s):  
Zai De Xu ◽  
Guo Cheng Sun ◽  
Ben Ren Pan ◽  
Ning Xu ◽  
Chao Qun Li ◽  
...  
Keyword(s):  
Weighted Average ◽  
Active Power ◽  
Research Subject ◽  
Distributed Network ◽  
Small Hydropower ◽  
Rocking Curve ◽  
Weighted Average Method ◽  
Equivalent Impedance ◽  
Before And After ◽  
Methods Of Synthesis

A distributed network with small hydropower is taken as research subject, and in PSASP environment a simulation network is constructed, which is based on the network’s connection mode and operation data. At first, this paper give a description of 3rd mode of small hydropower generator, and generalize common analysis methods of synthesis load, and on this basis lists three means that used for aggregating parameters, then choose weighted average method to aggregate necessary parameters of Small hydropower generators. Secondly, the operation data is fully used to determine the equivalent impedance of the network. Finally, in order to verify the accuracy and feasibility of the method raised by the paper, the author make a comparison of small hydropower generators’ relative rocking curve before and after equivalence, meanwhile, analyzes change regulation of active power in contact line before and after the equivalence.

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