The universal wood gasification CHP handbook in use for Flux-i Biopower 15 kW_e

 

4.7 Electrical components wood gasification CHP 

The generation of electric power is carried out in an air-cooled-high efficient-PM generator. 

 

The electrical energy generated is processed via corresponding power electronics on. 

About permanent magnet generators and inverters are current with power factor = 1 can be produced, while synchronous or asynchronous generators only an electrical efficiency of cos phi = 0.8 - reach 0.85. (Refer to Sec. 3.3.2) must be handed in the electrical energy to the network comply with the TAB (technical Anschlussbe-conditions) the system operator. 

 

 

For this purpose, an "anytime freely accessible network separation point" usually requires. The background is that when working on the mains power is not fed unintentionally. 

As an alternative to these separation points, a hedge can be performed at almost all energy suppliers with so-called "ENS". The ENS separated during a power failure, the CHP by the network and enables switching after a fixed-written time and after the restoration of stable network. Corresponding safety statements in accordance with DIN VDE 0126-1-1 are demanded by the RU. Depending on the type of feed the integration takes place in the network. 

 

Our Flux-i Biopower wood gasification CHP can work parallel network for consumer network; 

 

A) Reference and feed (wood gas CHP can be 100% feed) Our wood chip CHP can optionally "only reference replace"; without feed or "zero reference" 

B) ​​The biomass cogeneration plant supplies the energy to the "consumer power" a: In this case the current is first in the consumer power consumed (lowest ohmic resistance). If the consumption is reduced, surplus production flows into the network from. 

 

With the integration of the wood chip CHP is important to note that the highest hardest working interface should be sought in the net. 

The wood-CHP itself is according to the specification of the hedge. In series with the reference counter an export meter is interposed. During the reference counter counts only influent stream feed-one only because in the net effluent stream. 

 

C) Wood CHP 100% is fed into the mains power line The power generated is one-fed parallel to the reference counter in the network of the energy supplier. This method applies when the compensation is a better price is paid than can be saved in the replacement of electricity purchases.

 

Biomass CHP without feed or "zero reference" modulating  CHP with advanced control technology to adapt to the current demand. 

 

If the electrical base load is so great that the current in the consumer network always to 100% can be used, is to dispense with a reference counter. 

 

The current is always used himself. Is the generation times higher as the captive, the CHP on the pulse signal from the reference counter is throttling his power. 

 

Two variants depending on the scheme are possible:. 

 

1 The reference counter detects the reference and calls from the CHP exactly the same electric power or. 

2 The reference counter detects the recovery and attempts by power reduction to stop the feedback. 

 

In this case, the reference counter as for "parallel network" must be connected.

 

The CHP can also work as simple generator in island mode, where no grid is available, than, it's not a CHP, it works as generator the heat is blowen out by the cooler.