Week 11 Progress: Generation Scheduling
GENERATION SCHEDULE
Total
Load Forecasted:
Total load
= Load_forecast/720;
MonthlyLoads = 1×12
4200 4100 4300 4400 4500 4600 4700 4650 4550 4450 4350 4250
This load
forecast table is for testing purposes only. The proposed model load forecast
will be used once the best model is chosen.
Define
Generation Manually:
Format: (sites, 'VariableNames',
{'Name','Type','Capacity', 'Priority'})
origTable = 8×5 table
| | Name | Type | Capacity | Priority | Allocated |
|---|
| 1 | 'Solar Farm Maama Mai' | 'solar' | 1.4120 | 1 | 0 |
|---|
| 2 | 'Solar Farm Mata o e Laa' | 'solar' | 1.3000 | 1 | 0 |
|---|
| 3 | 'Solar Farm Singyes' | 'solar' | 2.1300 | 1 | 0 |
|---|
| 4 | 'Solar Farm Sunergise 1' | 'solar' | 2.3000 | 1 | 0 |
|---|
| 5 | 'Solar Farm Sunergise 2' | 'solar' | 2.3000 | 1 | 0 |
|---|
| 6 | 'Wind Farm I o Manumataongo' | 'solar' | 1.3750 | 1 | 0 |
|---|
| 7 | 'Solar Farm Sunergise 3' | 'wind' | 2.3000 | 2 | 0 |
|---|
| 8 | 'Diesel Powerplant Popua' | 'diesel' | 13.9300 | 3 | 0 |
|---|
The table
above shows the Generation sites with its Capacity in MW and setting Priority.
As evident above, the Renewable generation sites are first prioritised since it
is free.
=== Maintenance Schedule ===
Feb - Singyes
Mar - 1, 2, I o Manumataongo
Apr - Maama Mai, Mata o e Laa, 1
May - Maama Mai
Jun - Maama Mai, 3
Jul - 1
Sep - Maama Mai
Oct - 1
Nov - Diesel
Table above shows possible maintenance schedule of generation sites. Monthly routine check is still
in progress; however, this maintenance scheduling can be disrupted by any major fault occurred to any
generation site. Please also note that this is to help Planner with maintenance planning.
Monthly Generating Schedule:
Solar Farm Maama Mai : 0.382 MWh
Solar Farm Mata o e Laa : 0.352 MWh
Solar Farm Singyes : 0.577 MWh
Solar Farm Sunergise 1 : 0.623 MWh
Solar Farm Sunergise 2 : 0.623 MWh
Wind Farm I o Manumataongo : 0.372 MWh
Solar Farm Sunergise 3 : 1.150 MWh
Diesel Powerplant Popua : 1.754 MWh
Monthly Load: 5.83 MWh/hr
Solar Farm Maama Mai : 0.365 MWh
Solar Farm Mata o e Laa : 0.336 MWh
Solar Farm Singyes : 0.000 MWh
Solar Farm Sunergise 1 : 0.594 MWh
Solar Farm Sunergise 2 : 0.594 MWh
Wind Farm I o Manumataongo : 0.355 MWh
Solar Farm Sunergise 3 : 1.227 MWh
Diesel Powerplant Popua : 2.224 MWh
Monthly Load: 5.69 MWh/hr
Solar Farm Maama Mai : 0.353 MWh
Solar Farm Mata o e Laa : 0.325 MWh
Solar Farm Singyes : 0.532 MWh
Solar Farm Sunergise 1 : 0.000 MWh
Solar Farm Sunergise 2 : 0.000 MWh
Wind Farm I o Manumataongo : 0.000 MWh
Solar Farm Sunergise 3 : 1.380 MWh
Diesel Powerplant Popua : 3.382 MWh
Monthly Load: 5.97 MWh/hr
Solar Farm Maama Mai : 0.000 MWh
Solar Farm Mata o e Laa : 0.000 MWh
Solar Farm Singyes : 0.515 MWh
Solar Farm Sunergise 1 : 0.000 MWh
Solar Farm Sunergise 2 : 0.556 MWh
Wind Farm I o Manumataongo : 0.332 MWh
Solar Farm Sunergise 3 : 1.533 MWh
Diesel Powerplant Popua : 3.175 MWh
Monthly Load: 6.11 MWh/hr
Solar Farm Maama Mai : 0.000 MWh
Solar Farm Mata o e Laa : 0.303 MWh
Solar Farm Singyes : 0.497 MWh
Solar Farm Sunergise 1 : 0.537 MWh
Solar Farm Sunergise 2 : 0.537 MWh
Wind Farm I o Manumataongo : 0.321 MWh
Solar Farm Sunergise 3 : 1.687 MWh
Diesel Powerplant Popua : 2.369 MWh
Monthly Load: 6.25 MWh/hr
Solar Farm Maama Mai : 0.000 MWh
Solar Farm Mata o e Laa : 0.293 MWh
Solar Farm Singyes : 0.479 MWh
Solar Farm Sunergise 1 : 0.517 MWh
Solar Farm Sunergise 2 : 0.517 MWh
Wind Farm I o Manumataongo : 0.309 MWh
Solar Farm Sunergise 3 : 0.000 MWh
Diesel Powerplant Popua : 4.273 MWh
Monthly Load: 6.39 MWh/hr
Solar Farm Maama Mai : 0.306 MWh
Solar Farm Mata o e Laa : 0.282 MWh
Solar Farm Singyes : 0.461 MWh
Solar Farm Sunergise 1 : 0.000 MWh
Solar Farm Sunergise 2 : 0.498 MWh
Wind Farm I o Manumataongo : 0.298 MWh
Solar Farm Sunergise 3 : 1.917 MWh
Diesel Powerplant Popua : 2.766 MWh
Monthly Load: 6.53 MWh/hr
Solar Farm Maama Mai : 0.312 MWh
Solar Farm Mata o e Laa : 0.287 MWh
Solar Farm Singyes : 0.470 MWh
Solar Farm Sunergise 1 : 0.508 MWh
Solar Farm Sunergise 2 : 0.508 MWh
Wind Farm I o Manumataongo : 0.304 MWh
Solar Farm Sunergise 3 : 1.763 MWh
Diesel Powerplant Popua : 2.306 MWh
Monthly Load: 6.46 MWh/hr
Solar Farm Maama Mai : 0.000 MWh
Solar Farm Mata o e Laa : 0.303 MWh
Solar Farm Singyes : 0.497 MWh
Solar Farm Sunergise 1 : 0.537 MWh
Solar Farm Sunergise 2 : 0.537 MWh
Wind Farm I o Manumataongo : 0.321 MWh
Solar Farm Sunergise 3 : 1.610 MWh
Diesel Powerplant Popua : 2.515 MWh
Monthly Load: 6.32 MWh/hr
Solar Farm Maama Mai : 0.353 MWh
Solar Farm Mata o e Laa : 0.325 MWh
Solar Farm Singyes : 0.532 MWh
Solar Farm Sunergise 1 : 0.000 MWh
Solar Farm Sunergise 2 : 0.575 MWh
Wind Farm I o Manumataongo : 0.344 MWh
Solar Farm Sunergise 3 : 1.457 MWh
Diesel Powerplant Popua : 2.595 MWh
Monthly Load: 6.18 MWh/hr
Solar Farm Maama Mai : 0.371 MWh
Solar Farm Mata o e Laa : 0.341 MWh
Solar Farm Singyes : 0.559 MWh
Solar Farm Sunergise 1 : 0.604 MWh
Solar Farm Sunergise 2 : 0.604 MWh
Wind Farm I o Manumataongo : 0.361 MWh
Solar Farm Sunergise 3 : 1.303 MWh
Diesel Powerplant Popua : 0.000 MWh
Monthly Load: 6.04 MWh/hr
⚠️ Unmet load: 1.90 MWh/hr
Solar Farm Maama Mai : 0.388 MWh
Solar Farm Mata o e Laa : 0.358 MWh
Solar Farm Singyes : 0.586 MWh
Solar Farm Sunergise 1 : 0.632 MWh
Solar Farm Sunergise 2 : 0.632 MWh
Wind Farm I o Manumataongo : 0.378 MWh
Solar Farm Sunergise 3 : 1.227 MWh
Diesel Powerplant Popua : 1.701 MWh
Monthly Load: 5.90 MWh/hr
The above results are estimate generation scheduling for a year. There is a need for breakdown
of diesel genset maintenance scheduling. Spinning reserve is another factor
needed to also factor-in in this breakdown.
Full-Year Generation Allocation Table
Solar Farm Maama Mai Solar Farm Mata o e Laa Solar Farm Singyes Solar Farm Sunergise 1 Solar Farm Sunergise 2 Wind Farm I o Manumataongo Solar Farm Sunergise 3 Diesel Powerplant Popua Monthly_Load
____________________ _______________________ __________________ ______________________ ______________________ __________________________ ______________________ _______________________ ____________
Jan 0.38242 0.35208 0.57687 0.62292 0.62292 0.3724 1.15 1.7537 5.8333
Feb 0.36477 0.33583 0 0.59417 0.59417 0.35521 1.2267 2.2236 5.6944
Mar 0.353 0.325 0.5325 0 0 0 1.38 3.3817 5.9722
Apr 0 0 0.51475 0 0.55583 0.33229 1.5333 3.1749 6.1111
May 0 0.30333 0.497 0.53667 0.53667 0.32083 1.6867 2.3688 6.25
Jun 0 0.2925 0.47925 0.5175 0.5175 0.30938 0 4.2728 6.3889
Jul 0.30593 0.28167 0.4615 0 0.49833 0.29792 1.9167 2.7658 6.5278
Aug 0.31182 0.28708 0.47037 0.50792 0.50792 0.30365 1.7633 2.3062 6.4583
Sep 0 0.30333 0.497 0.53667 0.53667 0.32083 1.61 2.5149 6.3194
Oct 0.353 0.325 0.5325 0 0.575 0.34375 1.4567 2.5946 6.1806
Nov 0.37065 0.34125 0.55912 0.60375 0.60375 0.36094 1.3033 0 6.0417
Dec 0.3883 0.3575 0.58575 0.6325 0.6325 0.37813 1.2267 1.7014 5.9028
The table above are generation schedules for the given monthly loads. There are some months where the
load demand is met only by supplying from Renewable sources. However, for the unmet load demand,
it is then supplied by diesel generators.
CODE BREAKDOWN
- Load Input
The total average load for each month is specified in MWh and is then further divided by 720 to ensure the load is converted for hourly generation scheduling. The months are also specified.
2. Generation Sites and Capacity
All generation sites for the main island are specified and include all the different solar farms across the island with wind farms and diesel generators. The rated capacity for each site is also included.
3. Environmental Factors
Environmental factors such as sun light duration is given in hours while the wind speeds are also added in m/s.
4. Priority
In order to prioritse renewable energy over the diesel generators, the priority section of the code assigns the priority to the different sources of energy with solar first, then wind and diesel last.
5. Tabulate data
The site names, type of energy source, and the capacities of each site are stores as a table with a priority number given to each row of data. The table is sorted as per the priority list.
6. Maintenance Schedule
This section of code randomises the required maintenance duration in months from 1 to 4 months for each site and this is displayed for each site.
7. Monthly Scheduling and Load allocation
Monthly schedule is created by allocating values for each site as per the different months with sites under maintenance having their capacities set to zero. Additionally, the environmental factos from adjusts the production of the different sites.
8. Summary
The average energy produced from each site on a daily basis will now be displayed for each site for each month along with the total average energy produced for a day for the different months.
DISCUSSION and REMARKS
The purpose of the model is to create a power generation schedule for the main island of Tonga, Nuku'alofa. The generation schedule will specifically be the average power generation on daily basis for each month. The generation scheduling model so far is able to take user input such as the monthly average load which can be extracted from the forecasting models, and environmental factors such as wind speed and sun light hours to better mimic the performance of the wind turbines and solar farms respectively. The model is able to schedule the maintenance of each site for a random duration and is able to display the generation schedule for each site.
To improve the model, the following changes will be made in the near future or once the required details are provided by the Tonga Power Limited;
- include user input for sudden faults in any site and produce a schedule based on this change.
- break down the diesel generator production based on the individual generators.
- provide accurate maintenance duration and schedule.
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