Unfortunately we do not have any reference design or guidelines to port this project to 230VAC. The project was designed to work for 120VAC.
//" if we don't connect grid AC power to inverter board will it work ?? as we don't need grid tie system .//
No. The design is for grid tie system only.
We can help you in PSoC part of the design, but you have to take care of the external circuitry according your design. Please let us know any issue you face while designing regarding PSoC part. Our community members could be also helpful in modifying the design.