AI SearchOptimal unit commitment and real time economic dispatch and control of cascaded hydroelectric plants with thermal back-up (Record no. 83911)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 06080nas|a2200385 i 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818170801.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 951012s1983 th uzm rtt 00| a1eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b10481503 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no.CA-83-1 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Talaboc, Conchito Pangasian |
| 245 10 - TITLE STATEMENT | |
| Title | Optimal unit commitment and real time economic dispatch and control of cascaded hydroelectric plants with thermal back-up |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 1983 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | xxvi, 327 p. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. CA-83-1 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirement for the degree of Master of Engineering, School of Engineering and Technology |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Eng.) - Asian Institute of Technology 1983 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | A short-term economic scheduling and automatic dispatching scheme is developed in the study , to obtain optima l unit commitment schedules and implement real time economic dispatch , for application to a basically hydroelectric power system with cascaded plants subject to water transport time delays, thermal generation providing back-up, and interchange tie -.lines where power may be exported or imported. The scheme starts with the calculation of optimal schedules of the generating sources that will supply the expected requirement s of the system over a day or a week , with the objective of achieving proper water usage and minimum fuel input. Real time economic dispatch tallows, which adjusts the actual loadings of the gene rating sources making them approach to their schedules, thus implementing the annual projection of water releases and fuel usage. The Optimal Unit Commitment problem formulation operates the cascaded plant storages with significant pondages as reservoirs, a nd adjusts their storage trajectories, to obtain optimum discharges and corresponding hydrogen rations over a scheduling interval. The terminal conditions of reservoir storage trajectories are specified from a separate long-term unit commitment study . optimization is performed with the Progressive Optimality Algorithm , developed by Howson and Sancho (38) . Deficits in hydrogeneration are supplied by thermal back-up units . Total system transmission losses a r e considered. In particular, the socio-economic constraints , which curtail the generation of firm hydro power, are given explicit treatment. Discharge and spillage time - flow profiles are developed to account for the delays of water discharged and spilled. Reservoir operating curves are utilized. to determine the maximum storages available from pondages. Economic Dispatch is implemented as a main real time algorithm , which periodically allocates economic loadings to generating sources, and as a separate instantaneous algorithm performed in an automatic generation control scheme. The Economic Dispatch problem formulation is based on the coordination equations , first derived by Kirchmayer and Stagg (52) to dispatch thermal. units . The hydroelectric sources are dispatched as if they are thermal unit s , after water worth values of water in these sources are established. Two methods to calculate water worth values of water in any plant , that preserve coordination of a cascaded system , are formulated . The periodic and instantaneous economic dispatch loadings, whichever is the La test, are used as economic base settings in which deviations are made to satisfy the requirements of system frequency a nd interchange. The results are desired power generations of sources under on-line control, which are made up of both economic and regulation components. These desired powers are then transmitted to the generating sources. This process is implemented on-Line by an Automatic Generation Control scheme, that satisfies both Economic Dispatch and Load Frequency Control, on a dedicated process control computer. To meet unexpected and abrupt load changes, an algorithm to monitor instantaneous system spinning reserve is devised . A computer control time frame is established for the on-line control of the system. The real time optimizing and on-line control algorithms are performed , through activation by the program scheduler, according to the time frame . Provisions are made so that a program execution may be initiated by the dispatcher through t ask interrupt commands. To achieve flexibility in the on-line control of the generating sources, machine control status are established which can be appropriately assigned . The models are applied to the Mind a n a o Power Grid of the National Power Corporation, Mindanao Regional Center . The grid will eventually operate seven cascaded plants of the Agus River Hydroelectric Power Complex , six cascaded plants of the Pulangui River Power Complex , cascaded and non-cascaded plants of the Tagoloan and Cagayan Rivers, wood-fired steam generating plants, and geothermal plants a Long with the existing diesel power plant which provides the present thermal back-up. Preparation of data in the application of the models a nd results from computer program runs are presented. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Hydroelectric generators |
| General subdivision | Automation |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Radok, J.R.M, |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Tabucanon, Mario T., |
| Relator term | Examination Committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Huynh, Ngoc Phien, |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | US-AID/ASEAN, |
| Relator term | Scholarship Donor |
| 810 2# - SERIES ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Asian Institute of Technology. |
| Title of a work | Thesis ; |
| Volume/sequential designation | no. CA-83-1 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B20941">http://203.159.5.9/ait-thesis/detail.php?q=B20941</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b10481503 |
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| a | 240716 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 2 |
| Cataloger's initials, CIN (RLIN) | 951012 |
| First date, FD (RLIN) | m |
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| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 22-AIT Thesis (Replacement) |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 40-Archives |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120085377 |
| CREATED | CREATED : 2013-11-20 |
| RECORD Id | RECORD # : i12747294 |
| LPATRON | LPATRON : 0 |
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| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050160064928 |
| CREATED | CREATED : 2016-03-06 |
| RECORD Id | RECORD # : i13015953 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
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| -- | TOT RENEW : 0 |
| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Cost, normal purchase price | Total checkouts | Full call number | Barcode | Date last seen | Copy number | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | 50.00 | AIT Thesis no.CA-83-1 | 30050120085377 | 18/08/2026 | 3 | 18/08/2026 | 22-AIT Thesis (Replacement) | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 18/08/2026 | AIT Thesis no.CA-83-1 | 30050160064928 | 18/08/2026 | 18/08/2026 | 40-Archives |