|
|
|
| Time Domain Aggregation of Generating Units for Ship Power System |
| Yang Yongbo1, 2, Zha Xiaoming1 |
| 1. Wuhan University Wuhan 430072 China 2. Hubei Automotive Industries Institute Shiyan 442002 China |
|
|
|
|
Abstract An improved time-domain online dynamic equivalent method is presented, which is suitable to shipboard power system. It preserves the structure of the generator, excitation system and governor system. Sixth-order generator equation is used to reduce the grid considering the subtransient.Formulas and the aggregation steps are come out. The time-domain non-iterative algebraic operations process is used to calculate equivalent parameters. For verifying the effect of this aggregation method, the method is applied to reduce a twelve generators shipboard power system. The equivalent parameters and the dynamic response curves are presented in PSCAD/EMTDC simulation environment.And the simulation curves show that the equivalent system retains the dynamic performance of the original system with good accuracy.
|
|
Received: 01 March 2009
Published: 04 March 2014
|
|
|
|
|
|
[1] Li Qi. AC system stability analysis and assessment for shipboard power systems[D]. Texas A&M University, 2004.
[2] Sanjeev Kumar Srivastava. Multi-agent system for predictive reconfiguration of shipboard power systems[D]. Texas A&M University, 2003.
[3] Podmore R. Identification of coherent generators for dynamic equivalents[J]. IEEE Trans. on Power App. Syst., 1978, 97(4): 1344-1354.
[4] Ourari M L, Dessaint L A, Do V Q. Slow coherency approach for dynamic equivalents of large power systems[OL]. Session 6, paper 4. http: //www. ipst. org/IPST03papers htm#Sec6.
[5] Pei M A, Adgaonkar R P. Identification of coherent generators using weighted eigenvector[C]. IEEE Power Engng. Soc. Winter Meeting, New York/USA 1979: A79-022-5.
[6] Chow J H, Galarza R, Accari P, et al. Inertial and slow coherency aggregation algorithms for power system dynamic model reduction[J]. IEEE Trans. Power Systems, 1995, 10(2): 680-685.
[7] Wang L, Klein M, Yirga S, et al. Dynamic reduction of large power systems for stability studies[J]. IEEE Trans. on Power Systems, 1997, 12(2): 889-895.
[8] Germond A J, Podmore R. Dynamic aggregation of generating unit models[J]. IEEE Trans. Power App. Syst., 1978, 97(4): 1060-1069.
[9] Ramaswamy G N, Evrard C, Verghese G C, et al. Exensions, simplifications, and tests of synchronic modal equivalencing (SME)[J]. IEEE Trans. Power Syst., 1997, 12(2): 896-905.
[10] Galarza R J, Chow J H, Price W W, et al. Aggregation of exciter models for constructing power system dynamic equivalents[J]. IEEE Trans. Power Syst., 1998, 13(3): 782-788.
[11] Lei X, Povh D, Ruhle O. Industrial approaches for dynamic equivalents of large power systems[C]. In Proc.Power Eng. Soc. Winter Meeting, 2002, 2: 1036- 1042.
[12] Nath R, Lamba S S. Development of coherency-based time domain equivalent model using structure constraints[J]. Proc. Inst. El-ect. Eng., 1986, 133(4): 165-175.
[13] Ourari M L, Dessaint L A, Do V Q. Generating units aggregation for dynamic equivalent of large power systems[C]. In Proc. of IEEE Power Eng. Soc. General Meeting, 2004, 2: 1535-1541.
[14] Machowski J, Bialek J W, Bumby J R. Power system dynamics and stability[M]. New York: Wiley, 1997.
[15] Anderson P T M, Fouad A A. Power system control and stability[M]. 2nd ed. New York: Wiley, 2003. |
|
|
|
2010, Vol. 25 
