scholarly journals Research on Dispatching Management of High Proportion New Energy Grid in the Electricity Market Environment

2021 ◽  
Vol 13 ◽  
pp. 6-12
Author(s):  
Bolin Zhang ◽  
Chong Shao ◽  
Chunxiang Yang ◽  
Xiaobin Zhang ◽  
Tianyu Zhang ◽  
...  
Keyword(s):  
Power Supply ◽  
Electricity Market ◽  
Business Processes ◽  
Optimal Allocation ◽  
Supply And Demand ◽  
Power Market ◽  
Spot Market ◽  
Gansu Province ◽  
Smooth Transition ◽  
New Energy

The electricity spot market can reflect the power supply and demand situation in real time through price signals, guiding users to shift peaks and fill valleys, and enhancing the level of new energy consumption. Gansu Province, one of the first pilot spot market provinces in China, has designed a bilateral spot market for generations and users. The power supply mode and grid operation mode will undergo changes according to the operation results of the power market to achieve the optimal allocation of power resources, thus posing a huge challenge to the original grid dispatching mode. The article analyses the dispatch management articulation model based on the high penetration of new energy grids in the power market reform, adapts the work focus after changes in the power market business, and explores efficient dispatching business processes for the power spot market to ensure a smooth transition of dispatching work and effective integration of the market business.

scholarly journals Game Analysis of Wind Storage Joint Ventures Participation in Power Market Based on a Double-Layer Stochastic Optimization Model

Processes ◽  
2019 ◽  
Vol 7 (12) ◽  
pp. 896
Author(s):  
Bin Ma ◽  
Shiping Geng ◽  
Caixia Tan ◽  
Dongxiao Niu ◽  
Zhijin He
Keyword(s):  
Wind Power ◽  
Electricity Market ◽  
Joint Ventures ◽  
Market Competition ◽  
Power Market ◽  
Energy Output ◽  
Power Station ◽  
New Energy ◽  
Upper Level ◽  
Pumped Storage

The volatility of a new energy output leads to bidding bias when participating in the power market competition. A pumped storage power station is an ideal method of stabilizing new energy volatility. Therefore, wind power suppliers and pumped storage power stations first form wind storage joint ventures to participate in power market competition. At the same time, middlemen are introduced, constructing an upper-level game model (considering power producers and wind storage joint ventures) that forms equilibrium results of bidding competition in the wholesale and power distribution markets. Based on the equilibrium result of the upper-level model, a lower model is constructed to distribute the profits from wind storage joint ventures. The profits of each wind storage joint venture, wind power supplier, and pumped storage power station are obtained by the Nash negotiation and the Shapely value method. Finally, a case study is conducted. The results show that the wind storage joint ventures can improve the economics of the system. Further, the middlemen can smooth the rapid fluctuation of power price in the distribution and wholesale market, maintaining a smooth and efficient operation of the electricity market. These findings provide information for the design of an electricity market competition mechanism and the promotion of new energy power generation.

scholarly journals The Competitive Effects of Transmission Infrastructure in the Indian Electricity Market

2021 ◽  
Vol 13 (2) ◽  
pp. 202-242
Author(s):  
Nicholas Ryan
Keyword(s):  
Power Supply ◽  
Electricity Market ◽  
Power Market ◽  
Local Market ◽  
Market Outcomes ◽  
Competitive Effects ◽  
Transmission Expansion ◽  
Market Competitiveness ◽  
Set Up ◽  
Market Surplus

The integration of markets may improve efficiency by lowering costs or reducing local market power. India, seeking to reduce electricity shortages, set up a new power market, in which transmission constraints sharply limit trade between regions. During congested hours, measures of market competitiveness fall and firms raise bid prices. I use confidential bidding data to estimate the costs of power supply and simulate market outcomes with more transmission capacity. Counterfactual simulations show that transmission expansion increases market surplus by 22 percent, enough to justify the investment. One-third of this gain is due to sellers’ response to a more integrated grid. (JEL H54, L13, L94, O13, Q41)

scholarly journals Distributed Power Trading System Based on Blockchain Technology

Complexity ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Shuguo Chen ◽  
Weibin Ding ◽  
Zhongzheng Xiang ◽  
Yuanyuan Liu
Keyword(s):  
Power Supply ◽  
Electricity Market ◽  
Price Competition ◽  
Supply And Demand ◽  
Supply Side ◽  
Business Systems ◽  
Trading System ◽  
Adaboost Algorithm ◽  
Blockchain Technology ◽  
Power Trading

The power trading system has the characteristics of nonlinearity, dynamics, and complexity. Part of the business data in the trading system needs to be exposed to numerous external business systems. The traditional centralized power trading model has some problems, such as low data security and trust crisis of regulators. Blockchain technology provides prominent ideas for solving these problems. Firstly, the improved AdaBoost algorithm is used to predict the supply and demand gap of power trading nodes. Secondly, based on the fact that the information on the blockchain is only open to the power supply side, a two-stage game model of asymmetric information between the power supply side and the power user is constructed to capture the price competition behavior between them in order to find the Nash equilibrium price in two stages. Finally, the US PJM market electricity market data are used to carry out an example analysis to verify the effectiveness of the algorithm and model.

scholarly journals Analysis of Market Equilibrium Based on Co-evolution in Electricity Spot Market

2020 ◽  
Vol 218 ◽  
pp. 02024
Author(s):  
Guosheng Hu ◽  
Hechun Wang ◽  
Kun Fan ◽  
Haoyong Chen ◽  
Shengsheng Deng ◽  
...  
Keyword(s):  
Nash Equilibrium ◽  
Electricity Market ◽  
Lower Layer ◽  
Market Equilibrium ◽  
Power Market ◽  
Spot Market ◽  
Future Trend ◽  
Level Model ◽  
Electricity Spot Market ◽  
Security Constraint

By solving the Nash equilibrium of the electricity market, it is possible to observe the game process of market entities under different boundary conditions and predict the future trend of the market. In order to study the state of market equilibrium in the power spot market, firstly we constructed a bi-level equilibrium model. The upper layer is the problem of maximizing the profit of power generation enterprises under the bidding constraint, and the lower layer is the security constraint economic dispatch with the goal of maximizing social welfare. The traditional solution transforms the bi-level model into MPEC or EPEC through optimal conditions, but they are generally non-convex and difficult to solve. In this regard, the coevolution algorithm is used to solve the bi-level model, and it is proved that the result of co-evolution under a limited strategy set is equivalent to the Nash equilibrium. Finally, an example of PJM 5 machine with 5 nodes is used to analyse the power market equilibrium in the spot market.

scholarly journals Research on Funding Differences among Regional Electricity Markets in Northern China based on Thermoelectric Decoupling

2020 ◽  
Vol 185 ◽  
pp. 01017
Author(s):  
Sen Wang ◽  
Can Sun ◽  
Zhiyong Gan ◽  
Liansheng Zhou ◽  
Guilin Wang ◽  
...  
Keyword(s):  
Market Power ◽  
Electricity Markets ◽  
Electricity Market ◽  
Supply And Demand ◽  
Market Price ◽  
Northern China ◽  
Spot Market ◽  
Market Mechanism ◽  
Large Influence ◽  
Electricity Spot Market

With the development of China’s electricity spot market, planned power and market power will coexist for a long time. At the same time, by avoiding the risk of market price fluctuation through medium and long-term market, spot market guarantees electricity balance and secure operation of the grid. The electricity market mechanism has an increasingly large influence on the operation and dispatching model of power system. In spot market, decoupling operation model of market and non-market power has a large influence on both supply and demand sides and improper dredging mechanism may cause significant settlement deviation. To solve this problem, the paper, taking a city in northern China as an example, analyzes the electricity spot market, compares the sources of difference fund of market and non-market power under decoupling and non-decoupling models and compares the pros and cons of coupling and decoupling. The paper also studies the disparity of difference fund and proposes advice adapted to the electricity spot market development of northern China.

scholarly journals Design of Evaluation Index System of Electric Power Multilateral Trading Market Operation

2021 ◽  
Vol 252 ◽  
pp. 01029
Author(s):  
Li Xin ◽  
Zhaoqing Fu ◽  
Kangping Liu ◽  
Jiang Xu ◽  
Baoming Ma
Keyword(s):  
Electric Power ◽  
Electricity Market ◽  
Index System ◽  
Comprehensive Evaluation ◽  
Supply And Demand ◽  
Power Market ◽  
Electric Power System ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Market Operation

With the deepening of the reform of the electric power system and the continuous improvement of the demand level of electric power users, the psychological expectations of the market subjects have also undergone profound changes, and it is necessary to gradually strengthen and expand the key indicators and analysis dimensions that can reflect the operation situation of the electric power market, so as to adapt to the existing statistical analysis business needs. According to the current business content and demand of electricity market, this paper establishes a scientific and comprehensive evaluation index system of electricity market from the perspectives of market supply and demand, market structure, market behavior and market discipline. The system can reflect the development of power market comprehensively and objectively.

Modeling and Simulation of the Impact of Wind Power Integration on Power Market Based on System Dynamics

2012 ◽  
Vol 608-609 ◽  
pp. 759-763
Author(s):  
Chen Li ◽  
Li Sha Zhou ◽  
Ming Zeng
Keyword(s):  
System Dynamics ◽  
Wind Power ◽  
Power Supply ◽  
Supply And Demand ◽  
Power Market ◽  
System Dynamics Model ◽  
Key Factors ◽  
Dynamics Model ◽  
Wind Power Integration ◽  
The Impact

The impact of wind power integration on power market is complex and time-dependent, and can be reflected by some key factors with causal feedback relationships. First, the System Dynamics feature of the impact of wind power integration on power market is analyzed; second, according to the causal feedback relationships among the key factors, the System Dynamics model of the impact of wind power integration on power market is established; on this basis, under the scenario of wind power integrated capacity increasing, the impacts of wind power integration on the power supply and demand, power price and costs in power market are dynamically simulated, and the validity of the System Dynamics model in this paper is verified.

Sign in / Sign up

Export Citation Format

Share Document