KR940008141A - Maximum output generation method of solar cell - Google Patents

Maximum output generation method of solar cell Download PDF

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Publication number
KR940008141A
KR940008141A KR1019920016678A KR920016678A KR940008141A KR 940008141 A KR940008141 A KR 940008141A KR 1019920016678 A KR1019920016678 A KR 1019920016678A KR 920016678 A KR920016678 A KR 920016678A KR 940008141 A KR940008141 A KR 940008141A
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KR
South Korea
Prior art keywords
solar cell
voltage
value
output
maximum output
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KR1019920016678A
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Korean (ko)
Inventor
김신섭
Original Assignee
이희종
금성산전 주식회사
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Application filed by 이희종, 금성산전 주식회사 filed Critical 이희종
Priority to KR1019920016678A priority Critical patent/KR940008141A/en
Publication of KR940008141A publication Critical patent/KR940008141A/en

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  • Photovoltaic Devices (AREA)
  • Control Of Electrical Variables (AREA)

Abstract

본 발명은 기상상태에 따라 태양전지의 최대 출력을 발생하는 전압과 전류의 점을 추종하여 태양전지가 최대 출력을 발생하도록 한 태양전지의 최대 출력 발생 방법에 관한 것으로 태양전지 동작 전압의 미소분(△V)을 변동시켜 현재의 태양전지 출력점이 어디에 있는지를 판단하여 새로운 기준전압(Vref)을 만들며 이 기준전압(Vref)을 태양전지 전압(Vn)이 추종하도록 제어기(2)를 사용한다.The present invention relates to a method of generating a maximum output of a solar cell in which a solar cell generates a maximum output by following a point of voltage and current which generates a maximum output of a solar cell according to a weather condition. By varying [Delta] V to determine where the current solar cell output point is, a new reference voltage Vref is made, and the controller 2 is used to follow this reference voltage Vref with the solar cell voltage Vn.

본 발명에서는 태양전지를 입력하는 인버터나 콘버터 등의 관련 제품에 적용시킬 수 있으며 부하의 상태를 조절하여 태양전지의 출력점을 기상의 상태 변화와 관계없이 최대 출력점으로 이동시켜 태양전지의 출력을 최대로 활용할 수 있다.In the present invention, it can be applied to related products such as inverters or converters for inputting solar cells, and by controlling the state of the load, the output point of the solar cell is moved to the maximum output point regardless of the change in the state of the weather, thereby increasing the output of the solar cell. You can make the most of it.

Description

태양전지의 최대 출력 발생방법Maximum output generation method of solar cell

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제4도는 본 발명 밧데리가 없는 태양전지 시스템의 블럭도.4 is a block diagram of a battery-free solar cell system of the present invention.

제5도는 본 발명 제어기의 실시예를 나타낸 블럭도.5 is a block diagram illustrating an embodiment of the controller of the present invention.

제6도는 본 발명 기준전압 결정기의 플로우 챠트.6 is a flow chart of the reference voltage determiner of the present invention.

Claims (1)

기준전압 결정기(7)에서 태양전지(1)의 출력전압(Vn)과 출력전류(In)를 측정하여 발전전력P(K)값을 결정하는 단계(S1,S2)와, 상기 발전전력P(K)값과 이전의 태양전지 발전전력계(K-1)값을 비교하는 단계(S3)와, 상기 P(K)〉P(K-1)일때 Vn〉Vn(K-1)여부를 판단하고 P(K)〈P(K-1)일때 Vn〉Vn(K-1) 여부를 판단하는 단계(S4,S5)와, 태양전지 출력점이 α영역에 존재할 경우 기준전압(Verf)값을 미소전압(△V)만큼 증가시키고 β영역에 존재할 경우 미소전압(△V)만큼 감소시켜 기준전압(Verf)값을 만드는 단계(S6,S7)와, 태양전지 전압(Vn)과 기준전압(Verf)값으로 전압 오차(Verr)를 산출하고 이 값을 PI제어기(8)에 입력하는 단계(S8)와, 상기 PI제어기(8)에서 전압오차(Verr)를 입력받아 비례 적분하여 기준전류(Iref)를 만드는 단계(S9,S10)와, 상기 기준전류(Iref)값이 계통선 연계형 인버터(5)에 입력되어 기준전류(Iref)만큼 출력되도록 출력전류(I0)를 조절하는 단계(S11)를 포함하여 된 것을 특징으로 하는 태양전지의 최대 출력 발생 방법.A step of the reference voltage determiner (7) measuring the output voltage (Vn) and the output current (In) of the solar cell (1) determining the generated power P (K) values (S 1, S 2), and the generated power Comparing the P (K) value and the previous solar cell power generation meter (K-1) value (S 3 ) and whether Vn> Vn (K-1) when P (K)> P (K-1) Determining whether Vn> Vn (K-1) when P (K) <P (K-1) (S 4 , S 5 ), and the reference voltage Verf when the solar cell output point exists in the α region. ) Increase the value by a small voltage (ΔV) and decrease the value by a small voltage (ΔV) when present in the β region (S 6 , S 7 ) and the solar cell voltage (Vn). And calculating the voltage error Verr by using the reference voltage Verf and inputting the value to the PI controller 8 (S 8 ), and receiving the voltage error Verr from the PI controller 8. Integrating to create a reference current (Iref) (S 9 , S 10 ), and the reference current (Iref) value is a grid line connected type And a step (S 11 ) of adjusting the output current (I 0 ) to be inputted to the butter (5) and output as much as the reference current (Iref). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920016678A 1992-09-14 1992-09-14 Maximum output generation method of solar cell KR940008141A (en)

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KR1019920016678A KR940008141A (en) 1992-09-14 1992-09-14 Maximum output generation method of solar cell

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KR1019920016678A KR940008141A (en) 1992-09-14 1992-09-14 Maximum output generation method of solar cell

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010087801A (en) * 2001-06-04 2001-09-26 김태엽 Maximum power point tracking algorithm of solar cell
KR100908156B1 (en) * 2007-04-13 2009-07-16 경남대학교 산학협력단 Solar maximum power tracking device and method
KR100983035B1 (en) * 2008-06-23 2010-09-17 삼성전기주식회사 Power supply having maximum power point tracking function
KR101032487B1 (en) * 2011-03-07 2011-04-29 파워에너텍 주식회사 Power conditioner for solar power generation

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010087801A (en) * 2001-06-04 2001-09-26 김태엽 Maximum power point tracking algorithm of solar cell
KR100908156B1 (en) * 2007-04-13 2009-07-16 경남대학교 산학협력단 Solar maximum power tracking device and method
KR100983035B1 (en) * 2008-06-23 2010-09-17 삼성전기주식회사 Power supply having maximum power point tracking function
US8305058B2 (en) 2008-06-23 2012-11-06 Samsung Electro-Mechanics Co., Ltd. Power supply having an improved maximum power point tracking function
KR101032487B1 (en) * 2011-03-07 2011-04-29 파워에너텍 주식회사 Power conditioner for solar power generation

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