This design of the array of photovoltaic cells based on half-bridge circuit simulator, based on the DSP control, PI control and the addition of steady dynamic performance and improved accuracy system.
2 Solar cell operating characteristics
When the solar cell is exposed to light, the photo-generated current flows through the load, thereby generating a load voltage. At this time, the equivalent circuit of the solar cell is shown in Figure 1. Among them, RS is a series resistor, Rsh is a side leakage resistor, also called a jumper resistor, which is caused by defects in the body or the edge of the wafer is not clean. Obviously, the bypass current Ish and the forward current ID of the diode (the total diffusion current through the PN junction) are supplied by IL, and the remaining photocurrent flows through the RS and flows out of the solar cell into the load.
The literature [1], provided by the manufacturer using the short-circuit current Isc, the open circuit voltage of the VOC, a current Im at a voltage Vm and the maximum power point at the maximum power point of these four parameters can be obtained a solar panel model calculations for engineering:
Thus, put the IV characteristics of the solar cell panel into a simple, convenient form of engineering calculations.
3 photovoltaic cell array simulator design
Object simulator is to simulate a certain light, the electrical characteristics of the load varying with solar panel, including the maximum output power, the output characteristic IV, and the change under different sunshine. It should fulfill the following three requirements:
(1) The system can complete the output according to the output characteristics of the PV array. When the external circuit load is constant, the system can maintain a stable output at the working point;
(2) When the external load changes, the simulator can change to the new working point at a desired speed and can stabilize at that point;
(3) Ability to output the required power;
As a new type solar renewable resources are more and more attention, but during the development of the photovoltaic system, solar array by experiment since sunlight intensity, the influence of the ambient temperature, the experimental results in high cost, development cycle becomes long . Simulator array of photovoltaic cells can greatly shorten the study period the photovoltaic system, to improve the validity and efficiency of research findings.
This design of the array of photovoltaic cells based on half-bridge circuit simulator, based on the DSP control, PI control and the addition of steady dynamic performance and improved accuracy system.
2 Solar cell operating characteristics
When the solar cell is exposed to light, the photo-generated current flows through the load, thereby generating a load voltage. At this time, the equivalent circuit of the solar cell is shown in Figure 1. Among them, RS is a series resistor, Rsh is a side leakage resistor, also called a jumper resistor, which is caused by defects in the body or the edge of the wafer is not clean. Obviously, the bypass current Ish and the forward current ID of the diode (the total diffusion current through the PN junction) are supplied by IL, and the remaining photocurrent flows through the RS and flows out of the solar cell into the load.
The literature [1], provided by the manufacturer using the short-circuit current Isc, the open circuit voltage of the VOC, a current Im at a voltage Vm and the maximum power point at the maximum power point of these four parameters can be obtained a solar panel model calculations for engineering:
Thus, put the IV characteristics of the solar cell panel into a simple, convenient form of engineering calculations.
3 photovoltaic cell array simulator design
Object simulator is to simulate a certain light, the electrical characteristics of the load varying with solar panel, including the maximum output power, the output characteristic IV, and the change under different sunshine. It should fulfill the following three requirements:
(1) The system can complete the output according to the output characteristics of the PV array. When the external circuit load is constant, the system can maintain a stable output at the working point;
(2) When the external load changes, the simulator can change to the new working point at a desired speed and can stabilize at that point;
(3) Ability to output the required power;
As a new type solar renewable resources are more and more attention, but during the development of the photovoltaic system, solar array by experiment since sunlight intensity, the influence of the ambient temperature, the experimental results in high cost, development cycle becomes long . Simulator array of photovoltaic cells can greatly shorten the study period the photovoltaic system, to improve the validity and efficiency of research findings.
This design of the array of photovoltaic cells based on half-bridge circuit simulator, based on the DSP control, PI control and the addition of steady dynamic performance and improved accuracy system.
2 Solar cell operating characteristics
When the solar cell is exposed to light, the photo-generated current flows through the load, thereby generating a load voltage. At this time, the equivalent circuit of the solar cell is shown in Figure 1. Among them, RS is a series resistor, Rsh is a side leakage resistor, also called a jumper resistor, which is caused by defects in the body or the edge of the wafer is not clean. Obviously, the bypass current Ish and the forward current ID of the diode (the total diffusion current through the PN junction) are supplied by IL, and the remaining photocurrent flows through the RS and flows out of the solar cell into the load.
The literature [1], provided by the manufacturer using the short-circuit current Isc, the open circuit voltage of the VOC, a current Im at a voltage Vm and the maximum power point at the maximum power point of these four parameters can be obtained a solar panel model calculations for engineering:
Thus, put the IV characteristics of the solar cell panel into a simple, convenient form of engineering calculations.
3 photovoltaic cell array simulator design
Object simulator is to simulate a certain light, the electrical characteristics of the load varying with solar panel, including the maximum output power, the output characteristic IV, and the change under different sunshine. It should fulfill the following three requirements:
(1) The system can complete the output according to the output characteristics of the PV array. When the external circuit load is constant, the system can maintain a stable output at the working point;
(2) When the external load changes, the simulator can change to the new working point at a desired speed and can stabilize at that point;
(3) Ability to output the required power;
As a new type solar renewable resources are more and more attention, but during the development of the photovoltaic system, solar array by experiment since sunlight intensity, the influence of the ambient temperature, the experimental results in high cost, development cycle becomes long . Simulator array of photovoltaic cells can greatly shorten the study period the photovoltaic system, to improve the validity and efficiency of research findings.
This design of the array of photovoltaic cells based on half-bridge circuit simulator, based on the DSP control, PI control and the addition of steady dynamic performance and improved accuracy system.
2 Solar cell operating characteristics
When the solar cell is exposed to light, the photo-generated current flows through the load, thereby generating a load voltage. At this time, the equivalent circuit of the solar cell is shown in Figure 1. Among them, RS is a series resistor, Rsh is a side leakage resistor, also called a jumper resistor, which is caused by defects in the body or the edge of the wafer is not clean. Obviously, the bypass current Ish and the forward current ID of the diode (the total diffusion current through the PN junction) are supplied by IL, and the remaining photocurrent flows through the RS and flows out of the solar cell into the load.
The literature [1], provided by the manufacturer using the short-circuit current Isc, the open circuit voltage of the VOC, a current Im at a voltage Vm and the maximum power point at the maximum power point of these four parameters can be obtained a solar panel model calculations for engineering:
Thus, put the IV characteristics of the solar cell panel into a simple, convenient form of engineering calculations.
3 photovoltaic cell array simulator design
Object simulator is to simulate a certain light, the electrical characteristics of the load varying with solar panel, including the maximum output power, the output characteristic IV, and the change under different sunshine. It should fulfill the following three requirements:
(1) The system can complete the output according to the output characteristics of the PV array. When the external circuit load is constant, the system can maintain a stable output at the working point;
(2) When the external load changes, the simulator can change to the new working point at a desired speed and can stabilize at that point;
(3) Ability to output the required power;
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