Solar energy high voltage sodium lamp controller based on single stage inverter

An inverter and controller technology, applied in the field of solar high-pressure sodium lamp lighting system, can solve the problems of short battery life, rare, single-stage solar lighting system, etc., and achieve the improvement of charging and discharging capacity and service life, Increased charging and discharging capacity and service life, and improving the effect of charging and discharging control strategies

Inactive Publication Date: 2006-06-14
TSINGHUA UNIV
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Problems solved by technology

In the existing technology, the photovoltaic lighting system mainly has problems such as low working efficiency of solar cells and low energy conversion rate of the system, short battery life, and unstable operation of the system.
However, if the single-stage inverter is used, since there is only one energy conversion link in the system, it is necessary to

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  • Solar energy high voltage sodium lamp controller based on single stage inverter
  • Solar energy high voltage sodium lamp controller based on single stage inverter
  • Solar energy high voltage sodium lamp controller based on single stage inverter

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Embodiment Construction

[0029] The solar high pressure sodium lamp lighting system consists of the following parts: solar cells, storage batteries, charge and discharge controllers and lighting fixtures. During the operation of the system, through the continuous collection of solar cells, storage batteries and lamps, the operation status of the system is controlled and energy management is performed through single-chip computing and judgment. System operation includes charging, lighting, waiting, delay and other links. Its technical features are: 1) Realize the automatic control and intelligent control operation of the system by sampling the voltage and current of solar cells, accumulators and lamps. In the charging process, the maximum power point tracking technology (Maximum Power Point Tracking, MPPT) is applied to absorb solar power to the maximum; the three-stage charging technology is used to ensure the life and charging capacity of the battery. 2) By sampling the voltage and current of solar ...

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Abstract

This invention relates to a solar energy high pressure Na-lamp controller based on a single stage inverter characterizing in applying a sectional charge control and a frequency conversion output control, in which, the hardware includes a singlechip control circuit, a single-stage total bridge inversion circuit, a storage battery charge circuit, a high frequency electronic ballast circuit, a solar energy cell, storage batteries and luminaries, the controller is charged by MPPT to increase the system efficiency and applies frequency conversion output to control the current of the lamp, besides, a design of machine-card separation is applied to the controller on the structure to meet the needs of different luminaries and lamination, the control structure is integrated in a control card suitable for software upgrading.

Description

technical field [0001] The invention belongs to the field of power electronics application technology and new energy application power generation technology, and is especially suitable for solar high-pressure sodium lamp lighting systems, widely used in municipal engineering, roads, and garden lighting places, to meet the requirements of intelligent lighting control, intelligent charging and energy management, and high efficiency. energy saving requirements. Background technique [0002] At present, in photovoltaic power generation application systems, using high-pressure gas discharge lamps to realize solar photovoltaic lighting is one of the most widely used photovoltaic lighting technologies. In the prior art, photovoltaic lighting systems mainly have problems such as low working efficiency of solar cells and low system energy conversion rate, short battery life, and unstable system operation. With the single-stage inverter, since there is only one energy conversion link...

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Application Information

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IPC IPC(8): H05B41/288H02J7/00
CPCY02B20/00
Inventor 张强刘建政赵争鸣吴理博王健
Owner TSINGHUA UNIV
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