Introduction to Variable Renewable Energy Integration in Inner Mongolia Power Grid. Guo Qi Inner Mongolia Power Co.,LTD

Transcription

1 Introduction to Variable Renewable Energy Integration in Inner Mongolia Power Grid Guo Qi Inner Mongolia Power Co.,LTD

2 Main content Operation status of variable renewable energy in Inner Mongolia Grid (IMG) Our work on variable renewable energy Some issues in grid integration of variable renewable energy

3 Inner Mongolia Power Grid 720,000sq.km 13,800,000 people IMG North China

4 Operation status of variable renewable energy in Inner Mongolia Grid (IMG) Total Capacity Wind 23.2% Hydro 1.3% Gas 1.4% PV 2.8% Biomass 0.1% Coal 71.2% Total Capacity: 48,870MW Coal 34,789MW Wind 11,346MW PV 1,345MW Gas 665MW Hydro 659MW Biomass 66MW

5 Operation status of variable renewable energy in Inner Mongolia Grid (IMG) Installed capacity of VRE By the end of October 2014, the capacity of integrated wind power in Inner Mongolia Grid reaches GW, total 114 wind farms; the capacity of integrated PV in Inner Mongolia Grid reaches 1.35 GW, total 42 PV power plants; 历年风电装机容量 ( 单位 : 万千瓦 )

6 Operation status of variable renewable energy in Inner Mongolia Grid (IMG) Power generation The maximum power output of wind power is 7.70 GW,accounting for 32% of the day s maximum power output. The maximum on-grid daily output is GWh, accounting for 25.5% of total daily on-grid power. The maximum power output of PV is 1.05 GW. In 2013, about 21,977 GWh of wind power is put on grid, accounting for 11.1% of total power. The percentage is expected to be around 20% in 2020.

7 Operation status of variable renewable energy in Inner Mongolia Grid (IMG) Wind generation per month( ) unit:100mwh Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

8 Operation status of variable renewable energy in Inner Mongolia Grid (IMG) Wind curtailment & generation per day ( ) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

9 Main content Operation status of variable renewable energy in Inner Mongolia Grid (IMG) Our work on variable renewable energy Some issues in grid integration of variable renewable energy

10 Our work on variable renewable energy Extensive research on operation characteristics on large-scale wind power Solve the problem of wind information integration Establish the meteorological services for wind forecast Develop various wind power prediction software Application of wind power AGC and AVC technologies Develop wind technology supporting system Research the dispatching model and wind power acceptance methods of large scale wind power

11 Solve the problem of wind information integration Operation monitoring (grid connection status, wind speed and direction, spinning speed of generator, blade spinning speed, temperature, active power, reactive power, power factor and frequency ), which is foundation for wind power prediction, control and statistics. Calibration of the absolute direction of wind

12 Develop various wind power prediction software Wind prediction of single wind farm, regional network and entire grid Ultra-short-term and mid-term wind power prediction

13 Application of wind power AGC and AVC technologies Develop wind power automatic generation control system based on wind power and thermal power joint optimization

14 Application of wind power AGC and AVC technologies Wind farm AVC system AVC system Voltage tracing curve of AVC system

15 Develop wind technology supporting system wind dispatch supporting system The system combines the functions of operation monitoring, wind power prediction, control and statistics.

16 Main content Operation status of variable renewable energy in Inner Mongolia Grid (IMG) Our work on variable renewable energy Some issues in grid integration of variable renewable energy

17 Some issues in grid integration of variable renewable energy Key factors in developing wind power The determining factor is price. Effective subsidy and incentive need to be established to encourage integration of wind power so that the wind power can serve as a substitute energy source and eventually become the main power source. Prediction and control technology is necessary to integrate high penetration of renewables into the grid Wind power AGC, AVC & PV AGC, AVC Flexible generation plays an essential roll Gas Turbine, Hydro, Pumped Hydro Faster dispatch Current grid dispatching management model needs to be adjusted to accommodate renewable Coordination of various power resources needs economic and regulatory policies Electricity market, Ancillary services market, Quota system, Assessment indicators of energy consumption per kilowatt for local government

18 Your comments and suggestions are welcomed! Thanks!