CN103037575A - Classroom energy-saving light-emitting diode (LED) lighting system with power supplied by direct current bus - Google Patents

Abstract

The invention discloses a classroom energy-saving light-emitting diode (LED) lighting system with power supplied by a direct current bus. The classroom energy-saving LED lighting system with power supplied by the direct current bus comprises a direct current power source module, the direct current bus, a constant current convertor, an LED light source, a master switch, a branch switch and a controller. A direct current output end of the direct current power source module is connected with the direct current bus through the master switch. An input end of the constant current convertor is connected with the direct current bus through the branch switch. An output end of the constant current convertor is connected with the LED light source. The constant current convertor and the LED light source are both connected with the controller and controlled by the controller. A charging-discharging controller connected with the direct current power source module is controlled by the controller. With the method, the classroom energy-saving LED lighting system has the advantages of being simple in structure, easy to achieve, high in energy utilization rate and low in cost.

Description

Classroom energy-saving LED lighting system powered by DC bus

technical field

The invention relates to an energy-saving lighting system for a classroom, in particular to an energy-saving LED lighting system for a classroom powered by a DC bus. the

Background technique

With the continuous development of education, the scale of education and classroom buildings are constantly expanding, and the lighting system of school classrooms is its main infrastructure. The power consumption of the lighting system accounts for a large proportion of the energy consumption of the campus. The energy-saving transformation of the lighting system is of great significance to save resources and create a conservation-oriented campus. With the development of new energy generation technologies such as solar energy and the fourth generation of LED lighting technology, people have begun to try to introduce solar LED energy-saving lighting systems into classroom energy-saving lighting system applications. It has become a consensus to develop solar LED classroom lighting and promote its application. Due to the DC power supply working characteristics of LED lighting, it is suitable to use DC direct power supply, and the electric energy itself generated by solar energy and other new energy sources is also DC, so it is more suitable to use DC power supply system. But at present, the solar LED lighting system used in the classroom is still based on the traditional AC power supply method. The electric energy needs to be transformed twice, which has the disadvantages of high investment cost and low energy utilization rate, which also affects the new environmental protection and energy saving green lighting system. promotion and use. the

Contents of the invention

The technical problem mainly solved by the present invention is to provide a classroom energy-saving LED lighting system powered by a DC bus, which has a simple structure, easy realization, high energy utilization rate and low cost. the

In order to solve the above technical problems, a technical solution adopted by the present invention is to provide a classroom energy-saving LED lighting system powered by a DC bus, the classroom energy-saving LED lighting system powered by a DC bus includes a DC power module, a DC bus, a constant current conversion device, LED light source, main switch, sub-switch and controller, the DC output terminal of the DC power supply module is connected to the DC bus through the main switch, the input terminal of the constant current converter is connected to the DC bus through the sub-switch, and the constant current conversion The output terminal of the converter is connected to the LED light source, and the constant current converter and the LED light source are both connected to the controller for control, and the controller controls the charge and discharge controller connected to the DC power supply module;

Preferably, the DC power supply module includes a rooftop photovoltaic array and an energy storage battery connected to a charging and discharging controller, and the charging and discharging controller is also connected to a mains complementary device;

Preferably, the controller is also connected with an illumination sensor, a human body induction sensor and a wireless networking antenna.

The beneficial effects of the present invention are: the energy-saving LED lighting system for classrooms powered by a DC bus of the present invention realizes automatic adjustment and control of lighting in a set working state by collecting indoor illuminance and human body sensor lamp information, thereby maximizing energy saving. At the same time, the controller can form a communication network through the wireless communication unit to realize functions such as online remote monitoring of the lighting system; the direct DC bus power supply method is adopted, combined with the application of new energy distributed power generation methods such as solar energy, which can save the traditional use of The DC-AC and AC-DC two-stage power supply link of the AC power supply method is replaced by a single-stage DC-DC power supply method, combined with an intelligent controller system, which further improves the overall efficiency of the system and reduces the design cost; its structure is simple , Easy to realize, high energy utilization rate. the

Description of drawings

Fig. 1 is a schematic structural diagram of a classroom energy-saving LED lighting system powered by a DC bus of the present invention. the

Detailed ways

The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly. the

Please refer to Fig. 1, the embodiment of the present invention comprises:

An energy-saving LED lighting system for classrooms powered by a DC bus. The energy-saving LED lighting system for classrooms powered by a DC bus includes a DC power supply module 1, a DC bus 2, a constant current converter 3, an LED light source 4, a main switch 5, and a branch switch 6. and the controller 7, the DC output terminal of the DC power supply module 1 is connected to the DC bus 2 through the main switch 5, the input terminal of the constant current converter 3 is connected to the DC bus 2 through the sub-switch 6, and the constant current converter 3 The output terminal is connected to the LED light source 4, the constant current converter 3 and the LED light source 4 are both connected to the controller 7 for control, and the controller 7 controls the charge and discharge controller 121 connected to the DC power supply module 1;

The DC power supply module 1 includes a rooftop photovoltaic array 11 and an energy storage battery 122 connected to a charging and discharging controller 121, and the charging and discharging controller 121 is also connected to a mains complementary device 120; the controller 7 is also connected to an illumination sensor 8 , human body induction sensor 9 and wireless networking antenna 10.

The classroom energy-saving LED lighting system powered by the DC bus of the present invention realizes the automatic adjustment and control of the lighting under the set working state by collecting the illuminance in the classroom and the information of the human body induction lamp, so as to save energy to the maximum extent. At the same time, the controller can form a communication network through the wireless communication unit to realize functions such as online remote monitoring of the lighting system; the direct DC bus power supply method is adopted, combined with the application of new energy distributed power generation methods such as solar energy, which can save the traditional use of The DC-AC and AC-DC two-stage power supply link of the AC power supply method is replaced by a single-stage DC-DC power supply method, combined with an intelligent controller system, which further improves the overall efficiency of the system and reduces the design cost; its structure is simple , Easy to realize, high energy utilization rate. the

The above is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technologies fields, all of which are equally included in the scope of patent protection of the present invention. the

Claims (3)

1. DC bus powered energy-saving in classrooms LED illuminator, it is characterized in that: this DC bus powered energy-saving in classrooms LED illuminator comprises by DC power supplier, dc bus, constant-current converter, led light source, master switch, switch-dividing and controller, the dc output end of described DC power supplier is connected with dc bus by master switch, the input of constant-current converter links to each other with dc bus by switch-dividing, the output of constant-current converter links to each other with led light source, described constant-current converter and led light source all are connected to controller control, and the controller control connection the charging-discharging controller of DC power supplier.

2. DC bus powered energy-saving in classrooms LED illuminator according to claim 1, it is characterized in that: described DC power supplier comprises roof photovoltaic array and the energy storage battery that is connected to charging-discharging controller, and charging-discharging controller is also connecting the mains hybrid device.

3. DC bus powered energy-saving in classrooms LED illuminator according to claim 1, it is characterized in that: described controller also is connected with illuminance sensor, human body sensor and wireless networking antenna.