symbolic dynamic models for highly varying power system loads

More documents

Recommendations

Info

24 This chapter deals with a number of tests belonging to the each category. A nomenclature has been used to refer to a particular test in this chapter. In this nomenclature, a test designator is used in the form XX-Ynn. The entry XX can be “ST” to designate the use of synthetic (computer generated) data. The entry Y represents one of the five categories, mentioned above, to which the test belongs. The numbers nn refer to the serial number of the test. Thus, as examples, ST-C03 refers to the synthetic test number 3, belonging to the category C. RT-E15 refers to the real test number 15, belonging to the category E. Description of Case 1 and Case 2 appear in Chapter 2. 3.3 Test conditions In the synthetic tests, some parameters that describe the synthetic data, have been assumed. Based on these parameters, a signal was formed synthetically and the proposed algorithm was implemented on this signal. All these parameters have been tabulated for different tests in Table 3.1 and Table 3.2.
25 3.4 Analysis tools To analyze the results of the tests, some parameters have been taken into consideration. Especially while forecasting a signal, it is difficult to comment on the goodness of the model unless some characteristics of the expected signal and predicted signal are compared. Two important parameters to be compared in this regard are RMS and average. Table 3.1 Test statistics for categories A and B* Test Signal 1 Signal 2 Interval (radian) Points per cycle Maximum word. length Words in dictionary. ST-A01 sin(θ) sin(θ+δ) [0,24π] 50 3 1797 ST-B01 sin(θ) θ+sin(θ) [0,24π] 50 3 1797 ST-B02 sin(θ) random no. [0,24π] 50 3 1797 ST-B03 sin(θ) sin(θ)+noise [0,24π] 50 3 1797 * All the listed tests are for CSI verification.
Page 1 and 2: ARIZONA STATE UNIVERSITY POWER SYST
Page 3 and 4: include statistical tests, electric
Page 5 and 6: CHAPTER Page 2.6 Forecasting a sign
Page 7 and 8: LIST OF TABLES Table Page 3.1 Test
Page 9 and 10: LIST OF FIGURES Figure Page 2.1 Rep
Page 11 and 12: G n H 0 H 1 IM IO I pred IREQ J KS
Page 13 and 14: 1 CHAPTER 1 1.1 Motivation INTRODUC
Page 15 and 16: 3 Static load model: Most of the lo
Page 17 and 18: 5 the voltage response of the load
Page 19 and 20: 7 In 1999-2000, Dinesh at Arizona S
Page 21 and 22: 9 increasing or decreasing the valu
Page 23 and 24: 11 initial conditions, which genera
Page 25 and 26: 13 equipment. It simply identifies
Page 27 and 28: 15 Fractional occurrence: Fractiona
Page 29 and 30: 17 consecutive symbols at a time, a
Page 31 and 32: 19 CSI = ∑( f χ i * fγi) /( f
Page 33 and 34: 21 To check the accuracy of the abo
Page 35: CHAPTER 3 SYNTHETIC TESTS AND RESUL
Page 39 and 40: 27 The KS method involves identifyi
Page 41 and 42: 29 3.5 Test results ST-A01: The aim
Page 43 and 44: 31 ST-B02: Here the Matlab inline f
Page 45 and 46: 33 Table 3.5 Results for tests in c
Page 47 and 48: 35 Table 3.6 Results for category D
Page 49 and 50: 37 Table 3.7 Results for category E
Page 51 and 52: 39 CHAPTER 4 TESTS ON INDUSTRIAL AR
Page 53 and 54: 41 2. Constant number of cells: The
Page 55 and 56: 43 Table 4.2 Test statistics for di
Page 57 and 58: 45 Table 4.5 Results for RT-D03 Ind
Page 59 and 60: 47 was recorded with the same sampl
Page 61 and 62: 49 RT-E02: In this test maximum wor
Page 63 and 64: 51 RT-E04: To implement the propose
Page 65 and 66: 53 4.5 Discussion Load modeling: Fo
Page 67 and 68: 55 Table 4.11 Execution time compar
Page 69 and 70: 57 • Implementing a probabilistic
Page 71 and 72: 59 integration of physical informat
Page 73 and 74: 61 [1] M. S. Chen, “Determining l
Page 75: 63 [18] R. B. Fancher, A. E. Hulse,
Page 79 and 80: 67 A.1 Dictionary Formation In this
Page 81 and 82: 69 data sets and compares them by c
Page 83 and 84: 71 c=zeros(w,1); c(1:w)=x(s:s+w-1);
Page 85 and 86: 73 kount1(r1)=kount1(r1)+1; kount1(
Page 87 and 88:
75 y1=sin(x1*pi/12.5)+(1/3)*sin(3*x
Page 89 and 90:
77 if (r>=cwf(i))&(r
Page 91 and 92:
79 % A program to forecast a signal
Page 93 and 94:
81 f=f-1; end rr=rr+1; end r=r+1; e
Page 95 and 96:
83 for jj=1:f if(d(jj,2:nw)==0) min
Page 97 and 98:
85 A.5 Forecasting a signal using M
Page 99 and 100:
87 end f=f+1; d(f,1:w)=(c(1:w))'; e
Page 101 and 102:
89 if(d(j,i+1)~=0) if(x(nx)==d(j,i)
Page 103 and 104:
91 end end newwd; wdlen; mm=wdlen+1
Page 105:
93 APPENDIX B ILLUSTRATIVE EXAMPLE
Page 108 and 109:
96 Z can be defined as Z(i) = Z(i+1
Page 110 and 111:
98 For a given s, the table entry i
Page 112 and 113:
100
Page 114 and 115:
102 Phase B EAF current 6 4 CT Curr
Page 116:
104 Table C.1 Sample data sheet for
show all

symbolic dynamic models for highly varying power system loads

Create successful ePaper yourself

Delete template?

Save as template?