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Wind Power Conversion – Stand-Alone System
This classic wind power system converts the energy from the blowing wind into usable (120V, 220V) electrical power for the owner’s home or business. It is important to store excess energy available from this system when the wind is plentiful. The excess energy is stored in either ultracapacitors or batteries (or in some combination of the two). Then, whenever the need for power exceeds what the inverter can provide at that moment, extra energy can flow from storage to meet the demand.
Please review the block diagram for the Stand Alone Wind Power Inverter:
click the image
to view the block diagram
Stand Alone Wind Power Inverter
Wind Power Conversion – Grid-Tie System
A wind grid-tie system allows the system owner to generate and use their own wind power with the ability to supplement any additional power needs from the local electric utility. In this way, if you do not always have enough power from your wind inverter system to meet your needs, then you can supplement with additional power from the local utility.
With a wind power grid-tie system, you have two basic options: with or without battery-backup. If you add battery-backup to a grid-tie system, you will be able to store any wind power you create but do not immediately use, and then use that power later when you do need it.
There are two advantages to a battery-backup grid-tie system over one without:
- You will reduce your electric bill even more since you can use your stored power instead of power from the electric company.
- You will then usually have enough power, even when there is a blackout, day or night.
A combination of ultracapacitors and deep discharge lead-acid batteries is usually best for energy storage of this type.
With a grid-tie system, there is another advantage of beginning small and growing your system as you have the time/money/desire. You (the owner) can start-off with just one wind mill (generator) and build your home or business wind power system at your own schedule. A grid-tie system allows you to expand your system at our own comfort level and pace.
Please review the block diagram for the Grid-Tie Wind Power Inverter:
click the image
to view the block diagram
Grid Tie Wind Power Inverter
In many states, a program called wind net-metering can be used with a grid-tie wind power system. Net-metering allows the system owner to effectively "sell" excess wind-generated power back to the local electric utility. When power is sold back to the utility, the electric meter will actually spin backwards, generating credit for the owner’s account. Subsequently, when power is drawn from your electric company it will run forwards, using up the credit.
Although net-metering is becoming more popular, it is not available everywhere. There may be some cities or counties in your area that participate in it, but not necessarily all utilities do. Also, the way that each state complies with net-metering differs. Some may require the utilities to "buy" wind-generated power at a competitive rate, while others do not. Some states make it very easy to join the program, whereas others require lengthy paperwork and inspections. You definitely need to do some homework before deciding to participate in net-metering. Check your state legislation first and then with your local electric company.
A wind grid-tie system offers great financial benefits for all who use it. It also lessens our country's dependence on foreign energy. Wind power is great for the earth - no environmental pollutants are involved with creating usable electric power from the wind’s vast energy.
Richardson RFPD and Wind Power Conversion
We can supply just about every needed component for your wind power inverter design… and we can help you with your design as well. We have experienced engineers on staff whom can help with power inverter designs of almost any type.
We have the specific wind power conversion components that you need to complete your wind inverter design. We can help you select the right capacitors, heatsinks, fuses, thyristors, IGBTs, ultracapacitors, resistors, integrated power-converter modules, etc.
Working together, we can review your design goals, provide specific design assistance, and even suggest design alternatives to help you meet those design goals easily and quickly.
Furthermore, we have the ability to provide complete design services for your wind power inverter.
Please check here for more information on any of these Design Support services.