Solid, photovoltaic (pv) + diesel engine complementary power generation system solutions

Overwhelmed with wacker long-term supply agreement is signed at the beginning of time, at the time of liberation, chairman and chief executive, referring to & other; The relationship is solid & throughout; After added, we cooperate with wacker chemical business began in 2003, over the years, based on the direction of the common development, cooperation will continue in-depth.

light wood complementary power generation is the use of photovoltaic power generation is given priority to, diesel generator is complementary, to power a load, and the excess electricity into the process of storage battery. In terms of stability, the continuous power have obvious advantages.

this article from the application scenario, cost advantage, project case, the control principle, characteristics and so on in detail the light wood complementary project solution.

many remote or island areas at home and abroad, the grid coverage and grid is not stable, can use diesel generator, due to the remote place, once the generator fault occurs, it is hard to get the repair in time, will inevitably affect the work and life. Secondly, noise and pollution of the diesel generator can't be solved.

and the light wood is complementary with automatic voltage stabilizing function, can improve the light wood is complementary power generation system of the power supply quality, when the photovoltaic power generation can not meet the requirements, to switch to diesel generators, continuous power generation.

so light wood complementary can be very good to solve the above problems, hybrid power plant also helps reduce carbon dioxide emissions and reduce power generation cost.

diesel power generation cost is larger. Normally the conversion efficiency of the diesel generator set power generation is about 31%, cummins 50 kw generator, for example: 【 1 kw 216 g { （ 216 * generator power number) / 1000} * diesel oil price per litre 】 / generator power = per kilowatt diesel consumption based on 0 # diesel 7 now. 6 yuan per liter, probably cost per kilowatt-hour in 1. 6 yuan, and the degree of photovoltaic electricity cost is basic in 0. 5 yuan.

in addition, diesel as consumables, price is also growing. Late project operational aspects of photovoltaic power generation is in diesel generator also easier to maintain, cost also corresponding more savings. More regardless of photovoltaic power generation to huge carbon emissions of the engine.

project adopts DEIF automatic sustainable energy controller ( ASC） Between sustainable power generation equipment and generators, realize the reliable, fully integrated connection optimization.

ASC and DEIF power management system is fully compatible with technology, adopts the modular design, scalability and flexibility, the support from the network, grid and off-grid/grid work mode. It can conform to the grid specifications of circuit breaker control and sustainable power supply quickly shut down, lost direction power supply protection and protection, and other functions. ASC - photovoltaic controller 4 + DEIF diesel generator company controller, can realize the function of the power management.

a diesel generator set will be run at minimum power load, the excess load supplied by photovoltaic (pv); If the load is less than the minimum load power setting of the diesel generator set, load completely by diesel generating sets the response.

a diesel generator set will be run at minimum power load, load power for diesel generating sets minimum load power value, residual load a photovoltaic (pv) is supplied.

a diesel generator set will be run at minimum power load, the surplus power supplied by solar, photovoltaic capacity and load is greater than the sum of a diesel generating set minimum load, excess load is response by diesel generating set, diesel generator set start-stop unit according to the load size.

because of the use of renewable energy independent system design is usually carried out in accordance with the worst, because renewable energy is changing, not stable, so the system must be carried out in accordance with the energy to produce the least amount of time. Because the system is carried out in accordance with the worst case design, so in other time, the capacity of the system is too large. Solar irradiation in height of the excess energy can't used and wasted. The whole performance of independent systems is thus reduced. If in the worst case and other months difference is very big, could lead to a waste of energy is equal to or even more than the demand of the design load.

in the independent system because of the change of renewable energy and instability may lead to a power supply system can't satisfy the load demand, there is load power shortage situation, using the hybrid system will greatly reduce the load power shortage.

in the case of low load, the diesel engine fuel efficiency is very low, will cause the waste of fuel. Comprehensive control makes the diesel engine in a hybrid system can work near the rated power, so as to improve fuel efficiency.

after using the hybrid system, because of the diesel generator can provide larger power, so the hybrid system can be applied to the load on the broader system, for example, you can use the larger ac load, impact load, etc. Also can better match load and power of the system. As long as the load of the height of the open spare energy can be simple to do. Sometimes, the size of load determines the need to use the hybrid system, takes a lot of large load current and high voltage. If it is to use solar energy costs will be high.