What is PD IEC TS 62257‑9‑7- Selection of solar inverters about?
PD IEC TS 62257 is an international standard that discusses renewable energy and hybrid systems for rural electrification. The IEC 62257 series intends to provide different players involved in rural electrification projects (such as project implementers, project contractors, project supervisors, installers, product suppliers, etc.) documents for setting up renewable energy and hybrid systems with a.c. voltage below 1 000 V and d.c. voltage below 1 500 V. One of the main objectives is to provide minimum requirements relevant to renewable energy and hybrid off-grid power systems.
PD IEC TS 62257‑9‑7 is one of the parts in a series of documents that specifies a technical specification, and the criteria for selecting and sizing inverters suitable for different off-grid applications integrating solar as an energy source.
As well as off-grid system, PD IEC TS 62257‑9‑7 can also apply to inverters where a utility grid connection is available as a backup for charging batteries, but it is not intended to cover applications in which inverters synchronize and inject energy back into a utility grid, even though this capability may incidentally be a part of the functionality of the inverters.
Who is PD IEC TS 62257‑9‑7- Selection of solar inverters for?
PD IEC TS 62257‑9‑7 on renewable energy and hybrid systems for rural electrification.
- Solar power inverters manufacturers
- Companies involved in solar energy engineering
- Photovoltaic cell manufacturers
- Photovoltaic power system manufacturers
- Solar pumping inverters manufacturers
- Grid-tied solar inverters manufacturers
- Solar micro-inverters manufacturers
Why should you use PD IEC TS 62257‑9‑7- Selection of solar inverters?
Inverters are used to convert DC power into AC power. For off-grid renewable applications, there are different types of inverters that may be used depending upon the architecture of the system. Some systems work with batteries and use the firm energy they provide to form the conditions of the micro-grid (grid-forming inverters) and some inverters synchronize to an existing grid. In addition, some inverters are bi-directional inverter/chargers, which not only convert DC battery current into AC, but also reverse the process and transform the AC current into a DC battery charging current to permit battery charging from the AC side of the inverter. Thus, off-grid inverters need to be correctly selected for the features which they possess, and sized accordingly depending upon the loads they shall feed or the energy sources they are fed by.
PD IEC TS 62257‑9‑7 aids in improved decision making when selecting solar inverters as per your specific needs and capacities. As a result, you can identify the right system for the right place, so as to ensure operational efficiency while enabling cost-reduction with the best suitable design, installation and operation practices.
