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With the demand increase for electricity, the ever-increasing awareness of environmental issues, coupled with rolling blackouts, the role of renewable energy generation will become even more significant. Instead of the traditional high-power energy storage and management system at the utility scale to implement PV firming, this paper proposes a new PV (panel-level) firming control algorithm using...
This paper highlights the power limited nature of the Distributed Generation inverter and demonstrates the practical way to integrate them into the microgrid. Since the energy source of Distributed Generation inverters is power limited in nature, they constrain the operation of inverters to which they are coupled. If the power demanded from these inverters is beyond their capability, their DC-link...
This paper presents a novel micro-inverter topology for a single-phase grid-connected photovoltaic (PV) system which is based on two stages. The first stage is forward-flyback DC-DC isolated high step-up converter for achieving high voltage gain and efficiency while the second stage is the soft switching full bridge inverter. The full-bridge DC/AC inverter is implemented with one leg operating in...
A kind of ultra-early fire detection system with high sensitivity and multi-parameter is introduced. The hardware of the system comprises smoke detecting module, CO gas detecting module, temperature detecting module and processing module. Optical measurement room of smoke detecting module is designed specially; it serves as a collimating and beam expanding unit as well as laser trap. It can detect...
The detector is mainly composed of CC430F5137, Lithium battery, Voltage monitor chip, temperature sensor, CO sensor and smoke detector, etc,. The detector is improved via the design optimization of hardware and software, which greatly reduces power consumption. Contemporarily, the detector uses BP algorithm program for judging whether there is a fire in the detect area. BP algorithm program is embedded...
Using adjustable speed scheme in high power motor drive can not only save energy greatly but also improve the dynamic performance of the motor. Recently, medium-voltage inverter becomes the most popular scheme for high-power motor drive, but in some especial fields multi-phase motor drives have more advantages. In this paper a vector control method of six-phase synchronous motor (SM) based on three-level...
Using adjustable speed scheme in high power motor drive can not only save energy greatly but also improve the dynamic performance of the motor. Recently, medium-voltage inverter becomes the most popular scheme for high-power motor drive, but in some especial fields multi-phase motor drives have more advantages. In this paper a vector control method of six-phase synchronous motor (SM) based on three-level...
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