state space representation of power system
Reliability analysis of power system based on generalized stochastic petri nets
... electricalconnectivity of each component of the system. Essentially, theETN operates based on the information regarding the states of the components, e.g. open/closed for circuit breakers, out -of- order/working ... consequences depending on the power system state. In conclusion, the reliability of protection schemes, understoodas the union of dependability and security, and its dependencyon the system operating conditions, ... designing modern power systems [12].The Petri Net (PN) paradigm is suitable to represent event-driven systems, which are characterized by a set of states(configurations) and a set of evolution...
- 6
- 339
- 0
Reliability assessment of power systems considering reactive power sources
... locally. Secondly, the main role of reactive power is to maintain voltage stability/security of power systems. The effect of reactive power on system reliability in terms of energy not supplied is ... the system. Generation bus 1 consists of 4ì60MW units. Generation bus 2 consists of 3ì40MW units. In order to illustrate the effect of reactive power reserve on system reliability, the system ... reactive power from active power in power system operation. Firstly, it is not efficient to transfer reactive power over a long distance because the reactive power loss in transmission system...
- 7
- 570
- 0
Báo cáo khoa học: "REPRESENTATION OF FEATURE SYSTEMS IN A NON-CONNECTIONIST MOLECULAR MACHINE" pptx
... any of the addressees because of the missing step it contains. The unification and control functions of the molecular machine together define a particular conception of phonological rule systems, ... connectionist simulation system running on Olivetti M24/M28 PCs. However, owing to the capacity of the machines (and of TLC Lisp, in which the system has been written) the number of molecules is extremely ... feature system. In terms of the above, the features of plural nouns and Dluralia tantum are identical, in spite of the link prohibition concerning the 'Non-Singular' feature of the...
- 4
- 273
- 0
Reliability analysis of a power system based on the multi state system theory
... reliability of the power system will be analyzed by the multi -state system theory in this paper. The procedure of applying the multi -state system theory to the reliability analysis of the power system ... generating function of the system; is the number of subsystems in the system; NsysM is the number of possible states of the system; sG is the performance of the system; sq is the ... multi -state system theory is introduced to analyze the reliability of a power system. States and corresponding probabilities of the battery are defined. The reliability of the power system...
- 4
- 407
- 0
Lesson 15-The power systems of Diesel Engine
... Lesson 15-The power systems of Diesel Engine The power systems of a diesel engine are a primary part of a power plant, the function of which is to guarantee proper operation of the power plant ... mainly consist of F. O. system, L. O. system, cooling system and compressed air system. Let us deal with them one by one. 1. The Fuel Oil System The basic mission of F. O. system is to supply ... functions of F.O .system can be described as feeding,transferring,purifying, measuring and supplying. 2. The Lube Oil System The task of lube oil system is to provide the surfaces of different...
- 6
- 726
- 2
Reliability modeling and evaluation of sulaimani erbil electrical power system
... aspects of the various elements of the system [2].In general, the system is of two types (depending on the structure of the system) , a simple structure system and a complex structure system. ... kV transmission line power system that energized by 33 kV system reduces the reliability of the system. Therefore, in order to improve the reliability of the 132 kV power systems, these lines ... Sulaimani-Erbil Electrical Power System Reliability Evaluation Fig.8 shows the single line diagram of the 132 kV systems for Sulaimani-Erbil electrical power system. For the purpose of reliability...
- 9
- 608
- 0
Tài liệu Handbook of Networks in Power Systems I docx
... lines to be considered in the power system network. In each state, the complementary relationships can bedetermined. For instance, given the state of the three lines of interest as 1, 1, 0,(37)$(39) ... limits and real power flowlimits of the network branches are the two typical conditions imposed to the power system for operating in a secure normal state. In addition, real and reactive power generation ... electricity is generated. Actual power flows of the networkwires are governed by the Kirchhoff laws, which makes transmission of power different from the transportation of an ordinary commodity in...
- 583
- 9,076
- 2
Tài liệu Báo cáo khoa học: "The Utility of a Graphical Representation of Discourse Structure in Spoken Dialogue Systems" ppt
... the system in terms of their ability to concen-trate on the instruction (Q3), in terms of their incli-nation to reuse the system (Q6) and in terms of the system s matching of their expectations ... interacted with the system both with and without the NM (Section 4). Our analysis of the users’ subjective evaluation of the system indicates that users prefer the version of the system with the ... dialogue system evaluation (e.g. (Walker et al., 2000)) and measure user’s overall perception of the system. We find that the NM presence significantly improves user’s perception of the system...
- 8
- 515
- 0
MODELING AND CONTROL ASPECTS OF WIND POWER SYSTEMS doc
... Aspects of Wind Power Systems26 simulator consists of multiple RACKs, each of which consist of both communication andprocessor cards and are linked by a common backplane. To solve a large power system network, ... salient features of this study. Results of RTDS are compared with Laboratory standard power system software PSCAD/EMTDC andthe features of using RTDS in dynamic characteristics analyses of wind farm ... diagram of VSC based STATCOM.With suitable adjustment of the magnitude and phase of the VSC output voltage, an efficientcontrol of power exchange between the STATCOM and the ac power system...
- 212
- 4,348
- 1
Báo cáo khoa học: "THE REPRESENTATION OF CONSTITUENT STRUCTURES FOR FINITE-STATE PARSING" pdf
... The derivation of E2* manifests first-degree center embedding of the category S*, as a result of the treatment of S as both a prefix and a suf- fix in G2*. However, no derivation of an affixed ... pretation of the expression as a whole. This completes our demonstration of the abil- ity of affixed strings to represent the structural descriptions of the acceptable sentences of a na- tural ... evidence for the identification of that constituent; e.g., if the leftmost daughter is either the specifier or the head of that constituent in the sense of Jacken- doff (1977). Third, we may suppose...
- 4
- 393
- 0
Báo cáo khoa học: "FINITE STATE PROCESSING OF TONE SYSTEMS" potx
... levels of representation. FST systems are conceptually bidirectional; they may easily be processed in either direction with the same finite state mechanism; the problem of the recoverability of ... bottom up chart parsing, can also be seen as a system of parallel finite state filters. The PSI (Parallel Sequential Incrementation) system of pro- sodic analysis being developed by myself ... properties of the tone sandhi systems of Tern and Bade very clearly, in particular the contextual dependencies (sandhi). The reverse (recognition) simulations show the ef- fects of tone neutralization:...
- 7
- 333
- 0
cirstea, m. n. (2002). neural and fuzzy logic control of drives and power systemsl
... improving the efficiency of the machine,quality of the output power and the stability of the system. Synchronous generators areresponsible for the bulk of the electrical power generated in the ... development of advanced controllers for power electronics.The first section of the book contains a brief review of control strategies for electricdrives /power systems and a summary description of neural ... for drives and power systems. Electric motors and power systems 19nozzle can ensure a variable flow of fluid, but at the cost of decreasing the motorefficiency. A VSD is capable of performing...
- 408
- 628
- 0
direct methods for stability analysis of electric power systems theoretical foundation, bcu methodologies, and applications
... instability) of the y = 0 solution of Equation 3.5 implies stability (or instability) of x¯ ( t ) of the system (Eq. 3.1 ). φt (x)XˆUX Figure 3.2 An illustration of the defi nition of asymptotic ... acceptable steady state. A simulated system trajectory of a large - scale power system transient stability model is shown in Figures 2.1 and 2.2 . The simulated system trajectory is composed of the predisturbance ... capability of transmission grids. The accuracy of stability analysis, however, largely depends on the validity of system models employed in describing power system dynamic behaviors (here, system...
- 511
- 1,152
- 0
Báo cáo hóa học: " Research Article Synthetic Stimuli for the Steady-State Verification of Modulation-Based Noise Reduction Systems" docx
... measuring the performance of noise reduction systems. Synthetic stimuli are proposedas test signals, because they can be tailored to the parameter space of the noise reduction system under test. The ... speech isavailable for verification of transfer characteristics of tele-phony equipment. In that case, again the speech performance of the system under test is of major interest, whereas the noisereduction ... magnitude of a system s frequencyresponse becomes independent of the system sthroughput delay when using a periodic stimulus,becausewithinagiventimeframewhoselengthisaninteger number of periods,...
- 8
- 415
- 0
Tìm thêm: hệ việt nam nhật bản và sức hấp dẫn của tiếng nhật tại việt nam xác định các mục tiêu của chương trình khảo sát các chuẩn giảng dạy tiếng nhật từ góc độ lí thuyết và thực tiễn khảo sát chương trình đào tạo gắn với các giáo trình cụ thể xác định thời lượng học về mặt lí thuyết và thực tế tiến hành xây dựng chương trình đào tạo dành cho đối tượng không chuyên ngữ tại việt nam điều tra đối với đối tượng giảng viên và đối tượng quản lí điều tra với đối tượng sinh viên học tiếng nhật không chuyên ngữ1 xác định mức độ đáp ứng về văn hoá và chuyên môn trong ct phát huy những thành tựu công nghệ mới nhất được áp dụng vào công tác dạy và học ngoại ngữ mở máy động cơ lồng sóc mở máy động cơ rôto dây quấn hệ số công suất cosp fi p2 đặc tuyến hiệu suất h fi p2 đặc tuyến mômen quay m fi p2 đặc tuyến tốc độ rôto n fi p2 động cơ điện không đồng bộ một pha sự cần thiết phải đầu tư xây dựng nhà máy thông tin liên lạc và các dịch vụ chỉ tiêu chất lượng theo chất lượng phẩm chất sản phẩm khô từ gạo của bộ y tế năm 2008