scholarly journals Comprehensive evaluation of transmission network planning scheme for large scale new energy integration

2021 ◽  
Vol 827 (1) ◽  
pp. 012009
Author(s):  
Yu Lu ◽  
Shengyao Shi ◽  
Yunfeng Guo ◽  
Jingying Yang ◽  
Peng Liu ◽  
...  
Keyword(s):  
Large Scale ◽  
Comprehensive Evaluation ◽  
Network Planning ◽  
Transmission Network ◽  
Energy Integration ◽  
Transmission Network Planning ◽  
Planning Scheme ◽  
New Energy

scholarly journals Research on new transmission network planning considering adjustable comprehensive resources

2021 ◽  
Vol 329 ◽  
pp. 01014
Author(s):  
Zhenghua Chen ◽  
Junjie Cao ◽  
Shengzhi Lu ◽  
Yezhang Cao ◽  
Shanshan Zheng ◽  
...  
Keyword(s):  
Large Scale ◽  
Power Grid ◽  
Network Planning ◽  
Utilization Rate ◽  
Transmission Network ◽  
Transmission Network Planning ◽  
New Energy ◽  
Planning Methods ◽  
Power Grid Planning ◽  
Grid Planning

With the large-scale renewable energy grid integration, the problems of traditional transmission network planning methods, such as high investment, low utilization rate and difficulty in implementation, have gradually emerged. Therefore, in order to improve the level of new energy consumption, effectively improve the operation efficiency of power grid and optimize the investment benefit, this paper proposes a new mode of power grid planning based on adjustable integrated resources. This paper focuses on two key planning methods: new energy confidence capacity assessment methods and load forecasting methods considering demand side resources.Then the paper takes a city-level 220 KV power grid as an example, applies a new power grid planning method to carry out planning, and verifies the effectiveness of the proposed planning model and method.

Research on New Energy Integration Capacity in Power Grid

2013 ◽  
Vol 448-453 ◽  
pp. 2223-2227
Author(s):  
Jun Chuan Jia ◽  
Bing Zhao ◽  
Xu Zhi Luo
Keyword(s):  
Large Scale ◽  
System Analysis ◽  
Comprehensive Evaluation ◽  
Power Grid ◽  
Peak Load ◽  
Stable Operation ◽  
Energy Integration ◽  
New Energy ◽  
Large Scale Integration ◽  
Scale Integration

Due to their high inter-temporal variation and intermittence, large-scale integration of the new energies, such as wind power and photovoltaic power, will pose great challenges to the safe and stable operation of power system. Analysis on gird stability and adaptability before integrating the new energy should be made. The paper investigates all kinds of restrictions and assesses each constrained capacity from the perspective of steady-state and transient voltage, frequency stability, cross-section transmission limit and peak load regulating capacity, respectively. Then the comprehensive evaluation on the capability to accommodate new energy for a power grid is accomplished. Take a practical grid for example, its accommodation capacity for new energy is calculated based on the above-mentioned method, which provides a theoretical basis for the grid to accommodate new energy and planning and construction of new energy.

Research on Comprehensive Assessment Index System for Transmission Network Planning Alternatives

2014 ◽  
Vol 960-961 ◽  
pp. 1567-1574
Author(s):  
Yong Lin ◽  
Zuo Hong Li ◽  
Mei Ling Dong ◽  
Da Hai You ◽  
Gang Wang ◽  
...  
Keyword(s):  
Index System ◽  
Comprehensive Evaluation ◽  
Network Planning ◽  
Comprehensive Assessment ◽  
Systematic Evaluation ◽  
Transmission Network ◽  
Assessment Index ◽  
Transmission Network Planning ◽  
Assessment Index System ◽  
Assessment Standard

In view of the lack of comprehensive and quantitative evaluation means for transmission network planning currently, a comprehensive assessment index system adapted to the characteristics of the transmission network planning is proposed, including 6 strategic layer indices (safety and reliability, economic efficiency, flexibility and coordination, smart and green, controllable risk and social benefits), 16 target layer indices and 57 operating layer indices. And the assessment standard for each index is determined to provide objective, comprehensive and systematic evaluation of transmission network planning alternatives as well as prepare for realization of the comprehensive evaluation of transmission network planning.

Comprehensive Fuzzy Evaluation for Transmission Network Planning Scheme Based on Gray Correlation Analysis

2013 ◽  
Vol 732-733 ◽  
pp. 1292-1296
Author(s):  
Lian Guang Liu ◽  
Wan Li Zhao ◽  
Yan Wei Chen
Keyword(s):  
Evaluation Method ◽  
Network Planning ◽  
Weight Vector ◽  
Transmission Network ◽  
Fuzzy Evaluation ◽  
Transmission Network Planning ◽  
Planning Scheme ◽  
Gray Correlation ◽  
Comprehensive Fuzzy Evaluation ◽  
Evaluation Matrix

The comprehensive fuzzy evaluation method for transmission network planning scheme has the drawback that relying more on the subjectivity. To solve this problem, gray theory is introduced into comprehensive fuzzy evaluation method. Gray correlation analysis method is used to calculate gray correlation coefficient as the membership of evaluation index to get fuzzy evaluation matrix. Then, the fuzzy weight vector is determined by the subjective and objective empowerment by integrating AHP and entropy method. Comprehensive fuzzy evaluation vector is obtained by using composite operator to synthesis evaluation matrix and fuzzy weight vector. The obtained result is used to evaluate transmission network planning scheme. Therefore, the problem that judger definate membership function based on subjective view is solved by combining the two methods. Calculation results show that the proposed method has a certain practical value.

Transmission Network Planning Scheme Considering N-2 Security under the Market Environment

2014 ◽  
Vol 986-987 ◽  
pp. 639-642
Author(s):  
Shen Quan Yang ◽  
Xing Wang Hu ◽  
Zhi Jie Zheng ◽  
Kui Hua Wu ◽  
Yi Qun Wang
Keyword(s):  
Genetic Algorithm ◽  
Transmission Line ◽  
Simulation Model ◽  
Network Planning ◽  
Transmission Network ◽  
Planning Model ◽  
Transmission Network Planning ◽  
Planning Scheme ◽  
The Impact ◽  
Hierarchical Genetic Algorithm

Traditional Transmission Network Planning scheme only considers N and N-1 security , with little regard for safety of N-2 system. This paper introduces the relaxation factor establishing Transmission Network Planning model, and further considers the N-2 secure of double-circuit transmission line on the basis of relaxation on the N-1 constraints. A hierarchical genetic algorithm (HGA) Model is proposed to solve the model.The final Transmission Network Planning scheme meets the reliability requirements under uncertain environment and has the minimum overall cost.A simulation model to simulate the impact of construction of the same tower line on the investment and security of transmission network planning is builded.

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