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Electrodeless lamp system with solar maximum power tracking control

A technology of maximum power tracking and electrodeless lamps, which is applied in the field of solar tracking, can solve the problems of low tracking accuracy, tracking failure, and high cost, and achieve the effects of high output efficiency, good tracking effect, and low cost

Active Publication Date: 2014-11-19
GUANGDONG ELX LIGHTING TECH
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  • Claims
  • Application Information

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Problems solved by technology

[0003] It can be seen that in the prior art, the maximum power tracking control of solar energy has problems such as low output efficiency, low tracking accuracy, high cost and even tracking failure.

Method used

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  • Electrodeless lamp system with solar maximum power tracking control
  • Electrodeless lamp system with solar maximum power tracking control
  • Electrodeless lamp system with solar maximum power tracking control

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Embodiment Construction

[0031] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] figure 1 It is a schematic diagram of the first composition and structure of the electrodeless lamp system with solar maximum power tracking control in the present invention. Such as figure 1 As shown, the electrodeless lamp system with solar maximum power tracking control of the present invention includes a solar electrodeless lamp ballast 1, a grid-connected inverter 2, and an electrodeless lamp 3; wherein,

[0033] The solar electrodeless lamp ballast 1 is used to obtain the real-time digital power P(k) according to the detected real-time digital DC voltage u(k) and real-time digital DC current i(k) of the photovoltaic cell; obtain the maximum power reference of the solar cell Point voltage U RF , to track the maximum output ...

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Abstract

The invention provides an electrodeless system with a solar maximum power tracking control. The system comprises a solar electrodeless lamp ballast, a grid-connected inverter or a battery, and an electrodeless lamp; wherein the solar electrodeless lamp ballast obtains a reference point voltage of the maximum power of a solar power battery; according the increasing and the decreasing of a real-time digital power, the way of duty cycle of a driving signal is changed by using pulse width modulation, and the perturbation direction of the real-time digital DC voltage is correspondingly maintained or changed; step of the duty cycle is determined according to whether |URF-u(K)|>1 / 4URF is correct or not, as well as variation of the real-time digital DC voltage; and the DC voltage with the maximum output power is processed by the grid-connected inverter or the battery and is sent to the electrodeless lamp. The electrodeless system with solar maximum power tracking control has the characteristics of high output efficiency, better tracking effect and lower cost, and can be widely used in the field of solar energy applications.

Description

technical field [0001] The invention relates to solar tracking technology, in particular to an electrodeless lamp system with solar maximum power tracking control. Background technique [0002] At present, the commonly used methods of maximum power point tracking (MPPT, Maxi Power Point Tracking) in photovoltaic power generation systems include constant voltage method (CVT, Constant Voltage Tracking), perturbation and observation method (P&O, Perturbation and Observation Algorithm), conductance incremental method ( IncCond, Incremental Conductance Algorithm) etc. The Chinese patent with the application number 200410101900.1 and titled "A Solar Photovoltaic Power Maximum Power Tracker and Control Method" uses the constant voltage method to realize the maximum power tracking of solar photovoltaic power generation, that is, the operating voltage and open circuit when using solar photovoltaic cells to output maximum power The approximate proportional relationship between the vo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B41/36G05F1/67
Inventor 肖蓉何文丰谭国振黄培先
Owner GUANGDONG ELX LIGHTING TECH
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