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Detection platform for grid-connected photovoltaic inverters (PVI) is researched and developed; the testing method and procedures of PVI are analyzed and the development course of this detection platform is described in detail. The detection platform consists of PC machine, interface card and a data bus, AC/DC programmable power supply, power meter, RLC adjustable load, simulation of the impedance...
Along with consuming of fossil energy step by step, crisis of energy has been appeared. The solar energy, which is endless, is a kind of renewable energy. Radiation of sun coming to earth in a day is equal to the energy, which is released by trillion buckets of oil. The research of solar energy generation has stepped into a very activity period. This paper analyses the physics characteristic of photovoltaic...
Recent years, technologies for new energy have developed rapidly since the energy crisis and the environmental pollution got worse. And the solar energy generation technology tends towards the stage of a large number of applications in engineering from the research stage. This paper designed a grid-connected PV system firstly, then introduced the operation principle of the various parts as well with...
By contrast with fossil fuel, which has many environmental problems such as exhausted gas or air pollution, the photovoltaic power generation system has a great future. The interface connecting photovoltaic and grid is a key element. This paper describes the topology of main circuit, control methods, design of passive filter. The important point of this paper is control methods for grid-connecting,...
In the distribution power system, the third harmonics of zero-sequence caused by nonlinear loads usually result in high-voltage distortion levels throughout the facility, neutral conductor overloading, motor heating, transformer heating, increased losses, and excessive harmonic injection onto the utility supply system. This paper presents a novel method for minimizing the zero-sequence harmonics by...
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