achei na net este inversor grid tie para turbina eolica, e ele tem a entrada para 3 fases ac que vem diretamente do stator do gerador, minha duvida é se existe algum limite para esses retificadores do proprio aparelho? pois não tem nenhuma informação da capacidade dos retificadores, logo nao tenho como saber a partir de qual voltagem ele começara a transferir energia para casa??? estou certo?
desculpe tantas perguntas espero que voces possam ajudar.
esse da foto tambem possui o controle de rotação, que tambem não sei como funciona, mas acho que é com a carga das bobinas ele consegue controlar o peso que o estator cria assim controlando sua velocidade. mas se alguem poder esplicar como funciona ao certo eu tambem agradeço.
model:sun-500g-wal
preface
the grid-tie inverter can transfer wind energy from wind generators directly into the home grid using no extra equipment. it can be connected to any outlet (conventional network) in the home. the grid-tie inverter controls the phase and the frequency and voltage of the power generated by the wind generator. it produces a pure sine-wave and matches that of the grid.
this model grid-tie has build in bridge rectifier and dump load controller, it can maintain the rotating speed of the wind turbine and keep the voltage from the wind turbine always at the range of the rated range of the grid tie inverter. it also has a high voltage protection function, when the wind is too big, and the dump load controlling system can’t keep the output voltage from the wind turbine, the controller will disconnect itself from the wind turbine, so it is very safe to be used.
there are 5 terminals on the left side of the inverter, 3 red terminals will be connected to the three phase output from the wind turbine, and 2 black terminals will be connected to dump load resistors.
there are 4 led indicators, 3 green indicators and 1 red indicator, 3 green led indicators will start to cycle from left to right when the grid and ac input supply is detected. this indicates the inverter is operating under normal condition. the rate of the cycling is according to how much power is being output from the wind turbine. the bigger the output power is, the faster the rate is. if there is no ac grid detected, the red led will be on, the inverter will not put out power, this is called “island protection” .
electrical specifications:
model sun-500g_wal
normal ac output power 500w
maximum ac output power 450w
ac output voltage range 220v/230v/240v 190v ~ 260v
110v/120v 90v ~ 130v
ac output frequency range 46hz ~ 65hz
total harmonic distortion(thd) <5%
power factor 0.99
dc input voltage range 24v ~ 52v(the test point is at the output of the rectifier)
peak inverter efficiency 92%(the consumption of the rectifier is not calculated.)
standby power consumption <1.5w
output current waveform pure sine-wave
mppt function yes
over current protection yes
over temperature protection yes
reverse polarity protection yes
island protection yes
stackable yes
recommend dump load resistor 5 ohm/500 watt
mechanical specifications:
n.w 3.5kg
g.w 4.0kg
dimension 332mm*265mm*135mm
operating temperature range
-10 ~ 45 degrees c
