Abstract
Based on the principle of photovoltaic module power detection, an intelligent module array power detection scheme is proposed, and a photovoltaic module array power detection device is designed. It consists of a master and multiple slaves. The voltage, current, temperature, and irradiation signals are synchronously collected and processed by acquisition module CC2530, and then wirelessly transmitted to the host for processing through zigbee communication protocol. These signals are calculated and displayed by the host software. Photovoltaic module array power detection device adopts modular design and experience experimental test. The measurement error meets the needs of field test. The device has the advantages of convenient portability, simple operation, high informatization, large test range, and good safety.
Highlights
Photovoltaic power generation, as an important form of new energy, has been used more and more widely at home and abroad
Module power test and attenuation calculation are extremely important for the construction and maintenance of power stations [1]
Damage and attenuation of photovoltaic module arrays [2, 3] will result in the decline of power generation capacity, and more security risks will be caused during the operation of the power station [4, 5]
Summary
Photovoltaic power generation, as an important form of new energy, has been used more and more widely at home and abroad. Module power test and attenuation calculation are extremely important for the construction and maintenance of power stations [1]. Damage and attenuation of photovoltaic module arrays [2, 3] will result in the decline of power generation capacity, and more security risks will be caused during the operation of the power station [4, 5]. For the power detection of photovoltaic module arrays, at present, there is no relevant technical method in China that can directly perform accurate measurements. Each testing agency measures multiple physical quantities and makes records, and the results are obtained through subsequent calculations [6]. Based on the principle of photovoltaic module array power detection (PMPD), this paper proposes an intelligent module array power detection scheme, and develops detection equipment to synchronously collect current, voltage, temperature, and irradiation signals, and obtain power values after processing, transmission, and automatic calculation
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