Research of Available Capability of Accommodating PV Power Generation of Tibet Power Grid Based on Capacity of Peak Load Regulation Constraints

2014 ◽  
Vol 1008-1009 ◽  
pp. 40-43
Author(s):  
Xiao Yan Jiang ◽  
Chuan He ◽  
Xiao Fei Liu
Keyword(s):  
Power Generation ◽  
Direct Current ◽  
Power Grid ◽  
Peak Load ◽  
Stable Operation ◽  
Power Station ◽  
Load Regulation ◽  
Pv Grid ◽  
Pv Power Generation ◽  
Grid Based

In recent years, along with the continuous expansion of the scale of photovoltaic (PV) power generation in Tibet, the proportion of PV Grid-connected capacity for Tibet power grid became higher increasingly, which brought great challenges to the secure and stable operation of the grids. So we do those studies on the available capability of accommodating PV power generation of Tibet power grid. Based on the way of capacity of peak load regulation and the minimum output in 2012, this paper simulates and analyzes the available capability of accommodating PV power generation under three boundary conditions, considering the factor of Qinghai-Tibet direct current participating in regulation. The analysis supports that the rate of discharging light accounts for 34.09 percent, 20.57 percent and 5.61 percent after PV power station connecting to the grid, if regardless of the measures of depth peak load regulation such as discharging light.

Effect Study of Large-Scale PV Power Access to HVDC System

2013 ◽  
Vol 772 ◽  
pp. 640-645
Author(s):  
Hua Ling Han ◽  
Zhen Li ◽  
Tao Shi ◽  
Ning Chen
Keyword(s):  
Power Generation ◽  
Large Scale ◽  
Power Grid ◽  
Operating Mode ◽  
Effect Study ◽  
Stable Operation ◽  
Long Distance ◽  
Hvdc System ◽  
Set Up ◽  
Pv Power Generation

In order to realize electric power high voltage, large capacity, long distance transmission and regional power grid interconnection, dc transmission system is an important technical means, and it plays an important role for cross-regional given of new large-scale energy power generation. Based on large scale photovoltaic (PV) power generation access to the northwest power grid as the object, this article set up PV power station model, analysis the influence of large-scale PV power access to HVDC system under different PV station operating mode and the grid disturbance situation. At last this paper puts forward suggestions and measures to guarantee stable operation of large scale PV power generation access to the system.

scholarly journals Equivalent Peak Load Regulation of Nuclear Power Plant Considering Benefits of Different Power Generation Groups

2018 ◽  
Vol 152 ◽  
pp. 227-232 ◽  
Author(s):  
Feixiang Peng ◽  
Wei Zhou ◽  
Xin Sui ◽  
Shubo Hu ◽  
Hui Sun ◽  
...  
Keyword(s):  
Power Generation ◽  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Peak Load ◽  
Load Regulation

Research on Combined Peak Load Regulation with Hydropower, Thermal Power and Nuclear Power Plants

2014 ◽  
Vol 986-987 ◽  
pp. 465-469 ◽  
Author(s):  
Gang Wang ◽  
Xiao Dong Ma ◽  
Chao Wang ◽  
Peng Ye
Keyword(s):  
Nuclear Power ◽  
Power Plants ◽  
Power Grid ◽  
Thermal Power ◽  
Operation Mode ◽  
Peak Load ◽  
Generating Capacity ◽  
Load Regulation ◽  
Set Up ◽  
Research Show

Base on Nuclear Power Plant (NPP) participating in peak load regulation of power grid, this paper studies the operation mode of hydropower, thermal power and NPP in Combined Peak Load Regulation. The optimization model for Peaking depth of NPP was set up. The case based on actual power grid were calculated and analyzed, results of the research show that in combined peak load regulation of hydropower, thermal power and NPP, a reasonable peaking depth of NPP will effectively alleviate the peaking pressure of power grid, avoid start-stop of thermal power and abandoned water of hydropower, while ensuring the hydroelectric generating capacity in the low load periods, and ensure thermal power output smooth, it further reduce the operating costs, verify the effectiveness of the model.

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.

Analysis of Turbines Vibration and Treatment Measures during the Commissioning

2012 ◽  
Vol 591-593 ◽  
pp. 2087-2090
Author(s):  
Guo Cheng Fang
Keyword(s):  
Steam Turbine ◽  
Vibration Analysis ◽  
Power Grid ◽  
Difficult Problem ◽  
Stable Operation ◽  
Safe Operation ◽  
Power Station ◽  
Treatment Measures ◽  
Solid Foundation ◽  
Shaft Vibration

The phenomenon of higher shaft vibration and higher bearing temperature is repeated happening during the starting of the 1 000MW coal fired unit of Suizhong power station, seriously endanger the safe operation of the unit, this article mainly aims at the difficult problem of this one technology, by researching on steam turbine work principle and vibration analysis, to find the reason of effect on stability, and to correct all unreasonable factors, to ensure the safe and stable operation of the unit, to laid solid foundation for the construction of the intelligent power grid.

Analysis on Negative Peak Regulation Ability of Regional Power Grid and Constrained Receivability of Wind Power Capacity

2014 ◽  
Vol 953-954 ◽  
pp. 486-492
Author(s):  
Jie Ren ◽  
De Zhi Chen ◽  
Feng Gao ◽  
He Nan Wang ◽  
Jian She Tian ◽  
...  
Keyword(s):  
Wind Power ◽  
Power Grid ◽  
Peak Load ◽  
Analytical Prediction ◽  
Regional Power ◽  
Power Capacity ◽  
Negative Peak ◽  
Great Pressure ◽  
Load Regulation ◽  
Main Factors

As wind power in China is developing more and more rapidly, the characteristics of wind power output such as randomness and volatility have brought great pressure to the system peak load regulation. On the basis of defining negative peak regulation ability, this paper gives out the calculation formula of negative peak regulation ability including wind power and the main factors of influencing the negative peak regulation ability are calculated. Aimed at the regional power grid in the target year 2014, this paper makes some analytical prediction on such main factors and calculates the negative peak regulation ability, and the amount of the acceptance of wind power bound by it, and makes some sensitivity analysis of the negative peak regulation ability and the amount of the acceptance of wind power.

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