Research On A New Method Of Power Decomposition Based On Component Theory

According to the physical meanings of power, the dissertation puts forward a novel method to decompose of power in system. Based on the power component theory, core description of the method , under the cross section known flow in power supply network, is that each input power of supply is decomposed into several power components; Each component describes the matched relation of two power supplies, and not only power component is mutually independent but also its power of input and output satisfy the power conservation; In the network any a power is the algebra sum of the power components with different distribution coefficients. Then, according to analyzing of the network overall situation and the cross section flow, the analytical theories system called power component theory and its distribution mechanism is established. Through contrasting and anglicizing, some existing extensive research of the method are unified into power component theory, which makes clear of how to decompose power and makes this problem theorization and systematization.Up to the present superposition theorem just is used for the calculation of electric voltage, electric current, don't involve its physics attribute, namely whether or not electric current and voltage produced by alone supply are same to the current and voltage produced by all supplies at same time? Superposition theorem is thought just a kind of number calculation method, still its result is true of electric voltage and electric current of physics distribute? This problem has not been studied from the existing documents. First time the dissertation questions this problem and makes elementary research, and as beneficial complement of theories mathematics proving physics experiment further perfects power component theory.In the process of proving conservation of power component symmetry of network admittance is very important and quoted many times, so a question is put out that whether power component is correct and what its manifestation in the dissymmetry network with controlled source. Making use of a shunt-wound controlled current source between the node and the ground elucidation is carried on. Regular power distribution change is found after controlled source is shunt, so foundation power and additional power are defined. The power component changes into foundation power component and additional power component at the dissymmetry network, and two synthesize for total of power component addition to foundation power component and additional power component respective conservation.Under the premise that the cross section flow of the electric power network is known, the electric power network is formed. Making use of the basic theories of power component to analyze power distribution of network, a new flow tracing model and arithmetic is brought out. The model takes vantage of power component theory, and resolves the electric network into several decoupled network. Each power supply under the background of power physics meaning is dependent, then the problem that how decompose across-item is fully thought; Flow and loss being tracked together, loss allocation is taken into account in the process of flow tracing in view of the coupled property between active power and reactive power. A new electric current tracking principle is put forward that the node power is distributed according to the ratio of two conjugated current, which are confirmed by superposition theorem.